Entry | Date | Title | Site | Author | #Graphics |
---|---|---|---|---|---|
194 | Thu 24-Sep-1998 | Reprocessing | All | Gordon Maclean | |
193 | Sat 08-Aug-1998 | Project End | Cathy Jirak | ||
192 | Fri 07-Aug-1998 | NUW Sonic Removal | Cathy Jirak | ||
191 | Fri 07-Aug-1998 | 24hr Test Begins | Cathy Jirak | ||
190 | Fri 07-Aug-1998 | Daily Status, Aug 7, Friday | John Militzer | ||
189 | Thu 06-Aug-1998 | Daily Status, Aug 6, Thursday | John Militzer | ||
188 | Wed 05-Aug-1998 | UW#2 down | John Militzer | ||
187 | Wed 05-Aug-1998 | nc_server / adam reboot | John Militzer | ||
186 | Wed 05-Aug-1998 | Daily Status, Aug 5, Wednesday | John Militzer | ||
185 | Tue 04-Aug-1998 | Reworking Covars 8/1-4 | John Militzer | ||
184 | Tue 04-Aug-1998 | Daily Status, Aug 4, Tuesday 1998 | Cathy Jirak | ||
183 | Mon 03-Aug-1998 | Daily Status, Aug 3 Monday | Cathy Jirak | ||
182 | Sun 02-Aug-1998 | Mixing Ratio : Interesting Observation | Cathy Jirak | ||
181 | Sun 02-Aug-1998 | Zeroing of NUW1&2 Sonics | Cathy Jirak | ||
180 | Sun 02-Aug-1998 | Daily Status, Aug 2 Sunday | Cathy Jirak | ||
179 | Sun 02-Aug-1998 | OKMN Krypton Cleaning | Cathy Jirak | ||
178 | Sat 01-Aug-1998 | Daily Status, Aug 1 Saturday | John Militzer | ||
177 | Fri 31-Jul-1998 | Ventillation Testing of Trh | Cathy Jirak | ||
176 | Fri 31-Jul-1998 | Daily Status, July 31 Friday | Cathy Jirak | ||
175 | Thu 30-Jul-1998 | covar restarted | Steve Oncley | ||
174 | Thu 30-Jul-1998 | NCAR Kryptons cleaned | John Militzer | ||
173 | Thu 30-Jul-1998 | NUW#1 Zeroed | John Militzer | ||
172 | Thu 30-Jul-1998 | Daily Status, July 30 Thursday | John Militzer | ||
171 | Wed 29-Jul-1998 | Mega-Turbo Aspiration on TRH tower | John Militzer | ||
170 | Wed 29-Jul-1998 | Base OKMN ingest problems | John Militzer | ||
169 | Wed 29-Jul-1998 | UW1 Rezeroing and problems | Steve Oncley | ||
168 | Wed 29-Jul-1998 | Daily Status, July 29 Wednesday | John Militzer | ||
167 | Wed 29-Jul-1998 | ADAM Reboot / Marigold down | John Militzer | ||
166 | Tue 28-Jul-1998 | Reset NUW#1 | John Militzer | ||
165 | Tue 28-Jul-1998 | Swap 1.5m and 9.m TRH back to original levels | John Militzer | ||
164 | Tue 28-Jul-1998 | Daily Status, July 28 Tuesday | Cathy Jirak | ||
163 | Mon 27-Jul-1998 | Daily Status, July 27 Monday | John Militzer | ||
162 | Sun 26-Jul-1998 | Daily Status, July 26 Sunday | John Militzer | ||
161 | Sat 25-Jul-1998 | Daily Status, July 25 Saturday | Cathy Jirak | ||
160 | Fri 24-Jul-1998 | OU krypton noise | Steve Oncley | ||
159 | Fri 24-Jul-1998 | krypton pinout | Steve Oncley | ||
158 | Fri 24-Jul-1998 | rain! | Steve Oncley | ||
157 | Fri 24-Jul-1998 | Change 1m. Wind Sensor | NCAR | Kathy Jirak | |
156 | Fri 24-Jul-1998 | UW's flipped and rotated | Steve Oncley | ||
155 | Fri 24-Jul-1998 | Daily Status, July 24 Friday | John Militzer | ||
154 | Thu 23-Jul-1998 | Gortex Filter Removed / Reinstalled on '0.5m' trh | John Militzer | ||
153 | Thu 23-Jul-1998 | Daily Status, July 23 Thursday [lots of good stuff!] | Steve Oncley | ||
152 | Wed 22-Jul-1998 | SOIL GRAVMOIST BLKDENS VWF and Cs | NCAR | Tony Delany | |
151 | Wed 22-Jul-1998 | T/RH tower back up | Steve Oncley | ||
150 | Wed 22-Jul-1998 | power cycle | Steve Oncley | ||
149 | Wed 22-Jul-1998 | Aspirated T/RH!! | Steve Oncley | ||
148 | Wed 22-Jul-1998 | uw sonic geometry | Steve Oncley | ||
147 | Wed 22-Jul-1998 | Daily Status, July 22 Wednesday | John Militzer | ||
146 | Tue 21-Jul-1998 | Tsfc emissivity is 0.97 | Steve Oncley | ||
145 | Tue 21-Jul-1998 | OU truck on site | Steve Oncley | ||
144 | Tue 21-Jul-1998 | Cleaned radiometer domes | NCAR | Tony Delany | |
143 | Tue 21-Jul-1998 | Daily Status, July 21 Tuesday | Steve Oncley | ||
142 | Mon 20-Jul-1998 | system backup done | Steve Oncley | ||
141 | Mon 20-Jul-1998 | Comparison of radiometers | All | Tony Delany | |
140 | Mon 20-Jul-1998 | Daily Status, July 20 Monday | Tony Delany | ||
139 | Sun 19-Jul-1998 | Xsun lockup; etc. | Steve Oncley | ||
138 | Sun 19-Jul-1998 | nuw comparison | Steve Oncley | ||
137 | Sun 19-Jul-1998 | backup done | Steve Oncley | ||
136 | Sun 19-Jul-1998 | Daily Status, July 19, Sunday | Steve Oncley | ||
135 | Sat 18-Jul-1998 | evening status - everything's fine | Steve Oncley | ||
134 | Sat 18-Jul-1998 | rezeroed uw2 | Steve Oncley | ||
133 | Sat 18-Jul-1998 | vacuum cleaner off | Steve Oncley | ||
132 | Sat 18-Jul-1998 | Daily Status, July 18, Saturday | Steve Oncley | ||
131 | Fri 17-Jul-1998 | Vacuum cleaner aspiration | Tony Delany | ||
130 | Fri 17-Jul-1998 | Daily Status, July 17, Friday | Tony Delany | ||
129 | Fri 17-Jul-1998 | Daily Status, July 16 Thursday | Tony Delany | ||
128 | Thu 16-Jul-1998 | UPS record of power outage | Steve Oncley | ||
127 | Thu 16-Jul-1998 | numw sonic booms adjusted slightly | Steve Oncley | ||
126 | Thu 16-Jul-1998 | Daily Status, July 116 Thursday | Tony Delany | ||
125 | Wed 15-Jul-1998 | zero wind cases | Steve Oncley | ||
124 | Wed 15-Jul-1998 | nuw1 fixed | Steve Oncley | ||
123 | Wed 15-Jul-1998 | TRHs now point down | Steve Oncley | ||
122 | Wed 15-Jul-1998 | uw sonics up to 4.5m | All | Steve Oncley | |
121 | Wed 15-Jul-1998 | BOUYANCY DETERMINED BULK DENSITIES | NCAR | Tony Delany | |
120 | Wed 15-Jul-1998 | UW sonics zeroed | Steve Oncley | ||
119 | Wed 15-Jul-1998 | Daily Status, July 15, Wednesday | Steve Oncley | 1 | |
118 | Tue 14-Jul-1998 | ati.9m boom angle shot | Steve Oncley | ||
117 | Tue 14-Jul-1998 | Soil core, pit and clod samples taken | NCAR | Tony Delany | |
116 | Tue 14-Jul-1998 | atm.9m remounted | NCAR | Steve Oncley | |
115 | Mon 13-Jul-1998 | Cleaned OKMN Krypton Hygrometer | OKMN | Scott Richardson | |
114 | Mon 13-Jul-1998 | second K-probe back at 1m | NCAR | Steve Oncley | |
113 | Mon 13-Jul-1998 | THR 1.5 HC11 swapped | NCAR | Steve Oncley | |
112 | Mon 13-Jul-1998 | Daily Status, July 13, Monday | Tony Delany | ||
111 | Sun 12-Jul-1998 | Soil core and trench samples Trime | NCAR | Tony Delany | |
110 | Sun 12-Jul-1998 | Daily Status, July 12 | Steve Oncley | ||
109 | Sun 12-Jul-1998 | trh at 1.5m restarted | NCAR | Steve Oncley | |
108 | Sat 11-Jul-1998 | Daily Status, July 11 | Tony Delany | ||
107 | Fri 10-Jul-1998 | Daily status (abbreviated) | Steve Oncley | ||
106 | Fri 10-Jul-1998 | Moist layer in soil | NCAR | Tony Delany | |
105 | Thu 09-Jul-1998 | csat spatial averaging | Steve Oncley | 1 | |
104 | Thu 09-Jul-1998 | 9m ATI taken down | NCAR | Steve Oncley | |
103 | Thu 09-Jul-1998 | pressure temperature compensation | NCAR | Steve Oncley | |
102 | Thu 09-Jul-1998 | How to fix aster's display | Steve Oncley | ||
101 | Thu 09-Jul-1998 | Daily Status, July 9 | Steve Oncley | ||
100 | Wed 08-Jul-1998 | Soil parameters & storage term | NCAR | Tony Delany | |
99 | Wed 08-Jul-1998 | Soil cores taken/Trime measurement | NCAR | Tony Delany | |
98 | Wed 08-Jul-1998 | lots of rain last night | NCAR | Steve Semmer | |
97 | Tue 07-Jul-1998 | Re-planted Gsoil and Tsoil NCAR1 | NCAR | Tony Delany | |
96 | Tue 07-Jul-1998 | flipped 6.5m prop vane | NCAR | Steve Semmer | |
95 | Tue 07-Jul-1998 | wet towel on sonic | NCAR | Steve Oncley | |
94 | Tue 07-Jul-1998 | fine adjustments to RHs | NCAR | Steve Oncley | |
93 | Tue 07-Jul-1998 | photos taken | NCAR | Steve Oncley | |
92 | Tue 07-Jul-1998 | Cleaned NCAR krypton hygrometers | NCAR | Tom Horst | |
91 | Tue 07-Jul-1998 | Bulk Density of soil | NCAR | Tony Delany | |
90 | Tue 07-Jul-1998 | flipped vane on 2m | NCAR | Steve Oncley | |
89 | Tue 07-Jul-1998 | Sonic tilts calculated | All | Tom Horst | |
88 | Mon 06-Jul-1998 | Peculiar lw.in radiometer response | All | Tony Delany | |
87 | Sun 05-Jul-1998 | Soil samples taken/Trime measurement made | NCAR | Tony Delany | |
86 | Sun 05-Jul-1998 | Daily Status, July 5 | Tom Horst | ||
85 | Sat 04-Jul-1998 | Night-time response of Eppley short wave radiometers | NCAR | Tony Delany | |
84 | Sat 04-Jul-1998 | Replacement of 6.5m TRH | NCAR | Tony Delany | |
83 | Sat 04-Jul-1998 | Daily Status, July 4 | Tom Horst | ||
82 | Sat 04-Jul-1998 | Raw data files to Stout | Steve Semmer | ||
81 | Fri 03-Jul-1998 | New fan on Rsw.out | Steve Semmer | ||
80 | Fri 03-Jul-1998 | Deleted OKMN CSAT from covar.config | OKMN | Tom Horst | |
79 | Fri 03-Jul-1998 | Daily Status, July 3 | Tom Horst | ||
78 | Fri 03-Jul-1998 | Campbell sonic tests | Steve Semmer | ||
77 | Thu 02-Jul-1998 | Campbell sonic going into marigold | Steve Semmer | ||
76 | Thu 02-Jul-1998 | Daily Status, July 2 | Tom Horst | ||
75 | Thu 02-Jul-1998 | How to regenerate OKMN NetCDF data | OKMN | Tom Horst | |
74 | Wed 01-Jul-1998 | Krypton calibrations changed | All | Tom Horst | |
73 | Wed 01-Jul-1998 | Tape backup | Steve Semmer | ||
72 | Wed 01-Jul-1998 | Changed sign of OKMN Gsoil in okmn.q | OKMN | Tom Horst | |
71 | Wed 01-Jul-1998 | Modified covar.config for Tsoil and Gsoil | Tom Horst | ||
70 | Wed 01-Jul-1998 | Daily Status, July 1 | Tom Horst | ||
69 | Wed 01-Jul-1998 | Sonic elevation angles | All | Tom Horst | |
68 | Tue 30-Jun-1998 | Added parameters to okmn.q | OKMN | Tom Horst | |
67 | Tue 30-Jun-1998 | NO MORE DISK SPACE! | Steve Semmer | ||
66 | Tue 30-Jun-1998 | Rlw.out fan bad | Steve Semmer | ||
65 | Tue 30-Jun-1998 | Orientation of OKNM CSAT sonic | OKMN | Tom Horst | |
64 | Tue 30-Jun-1998 | OKMN Krypton hygrometer | OKMN | Tom Horst | |
63 | Tue 30-Jun-1998 | Straightened 2 m cup anemometer | OKMN | Jerry Brotzge | |
62 | Tue 30-Jun-1998 | Installed fine-wire thermocouple | OKMN | Jerry Brotzge | |
61 | Tue 30-Jun-1998 | Installed pair of gh flux plate and PRTD | OKMN | Jerry Brotzge | |
60 | Tue 30-Jun-1998 | Net radiation leveling of Eppley components | OKMN | Jerry Brotzge | |
58 | Tue 30-Jun-1998 | OKMN 2m cups are tilted to south | OKMN | Tom Horst | |
57 | Tue 30-Jun-1998 | Covars restarted | Steve Semmer | ||
56 | Tue 30-Jun-1998 | Operation Changes, sonic levels | Steve Semmer | ||
55 | Tue 30-Jun-1998 | Daily Status, June 30 | Tom Horst | ||
54 | Tue 30-Jun-1998 | 1.5m HYGRO went down last night | Steve Semmer | ||
53 | Mon 29-Jun-1998 | Relevel work on both ATI sonics | Steve Semmer | ||
52 | Mon 29-Jun-1998 | Adjusted level of NCAR Rnet | NCAR | Tom Horst | |
51 | Mon 29-Jun-1998 | OKMN data listing | OKMN | Tom Horst | |
50 | Mon 29-Jun-1998 | Effect of sonic leveling errors on eddy fluxes | Tom Horst | ||
49 | Mon 29-Jun-1998 | Releveled NCAR 4.5m sonic | Tom Horst | ||
48 | Sun 28-Jun-1998 | New Prop angles | Steve Semmer | ||
47 | Sun 28-Jun-1998 | Moved 2m prop, 1.5m hygrothemometer | Tom Horst | ||
46 | Sun 28-Jun-1998 | Daily Status, June 28 | Tom Horst | ||
45 | Sat 27-Jun-1998 | Prop direction differences | Steve Semmer | ||
44 | Sat 27-Jun-1998 | NCAR/OKMN comparisons | Tom Horst | ||
43 | Sat 27-Jun-1998 | Daily Status, June 27 | Tom Horst | ||
42 | Fri 26-Jun-1998 | Daily Status, June 26 | Tom Horst | ||
41 | Fri 26-Jun-1998 | TRIME TESTS | Steve Semmer | ||
40 | Fri 26-Jun-1998 | SOIL GRAVMOIST & BLKDENS | Steve Semmer | ||
39 | Thu 25-Jun-1998 | 1.5m TRH back up | Steve Semmer | ||
38 | Thu 25-Jun-1998 | 1.5m TRH stopping | Steve Semmer | ||
37 | Thu 25-Jun-1998 | Fast T gain setting | Steve Semmer | ||
36 | Thu 25-Jun-1998 | Rain gauge tests | Steve Semmer | ||
35 | Thu 25-Jun-1998 | Removed bph 50y filter | Tom Horst | ||
34 | Thu 25-Jun-1998 | Soil moisture units | Tom Horst | ||
33 | Thu 25-Jun-1998 | Rnet compared to Rsum | Tom Horst | ||
32 | Thu 25-Jun-1998 | Daily Status, June 25 | Tom Horst | ||
31 | Wed 24-Jun-1998 | reboot aster | Steve Semmer | ||
30 | Tue 23-Jun-1998 | Telephone Contacts | Tom Horst | ||
29 | Tue 23-Jun-1998 | Adjusted depth of Tsoil.2 | Tom Horst | ||
28 | Mon 22-Jun-1998 | Tsfc mounted on hygrothermometer tower | Tom Horst | ||
27 | Mon 22-Jun-1998 | Tower instrumented | Steve Semmer | ||
26 | Mon 22-Jun-1998 | NETWORK NUMBERS | Steve Semmer | ||
25 | Mon 22-Jun-1998 | Test with TRIME | Steve Semmer | ||
24 | Mon 22-Jun-1998 | Reoriented hygrothermometers | Tom Horst | ||
23 | Mon 22-Jun-1998 | Several reboots of aster this morning | Tom Horst | ||
22 | Mon 22-Jun-1998 | Hygrothermometer serial numbers | Tom Horst | ||
21 | Sun 21-Jun-1998 | Sonic boom azimuths | Tom Horst | ||
20 | Sun 21-Jun-1998 | Prop boom azimuths | Tom Horst | ||
19 | Sun 21-Jun-1998 | Tower array description | Tom Horst | ||
18 | Sun 21-Jun-1998 | Replaced hygrothermometer filters | Tom Horst | ||
17 | Sun 21-Jun-1998 | June 19: moved TRH intercomparison | Tom Horst | ||
16 | Sun 21-Jun-1998 | Latitude; longitude; declination | Tom Horst | ||
15 | Sat 20-Jun-1998 | Removed goretex filters | Tom Horst | ||
14 | Sat 20-Jun-1998 | Buried soil sensors | Tom Horst | ||
13 | Sat 20-Jun-1998 | 0.5m Hygrothermomter failed last night | Tom Horst | ||
12 | Sat 20-Jun-1998 | Radiometer levels | Tom Horst | ||
11 | Fri 19-Jun-1998 | Entered prop pitches | Tom Horst | ||
10 | Fri 19-Jun-1998 | Hygrothermometer intercomparison | Tom Horst | ||
9 | Fri 19-Jun-1998 | Cellular telephone time | Kurt Knudson | ||
8 | Thu 18-Jun-1998 | Fast T calibration | Tom Horst | ||
7 | Thu 18-Jun-1998 | Hygrothermometer intercomparison | Tom Horst | ||
6 | Thu 11-Jun-1998 | How to examine cals | none | Steve Oncley | |
5 | Mon 08-Jun-1998 | Bad Datel | Gordon Maclean | ||
4 | Mon 08-Jun-1998 | Sonic testing | Gordon Maclean | ||
3 | Sun 07-Jun-1998 | staffing | Tom Horst | ||
2 | Sun 07-Jun-1998 | hotel reservations | Tom Horst | ||
1 | Sun 07-Jun-1998 | Logbook created | none | Gordon Maclean |
The oasis data has been rerun with these corrections: 1. sonic data (except for NUW sonics) tilt corrected, and rotated to geographic coordinates. 2. CSI soil moisture (Msoil.5cm.1,2,3) corrected by a quadratic fit to the manual measurements (from Tony and SteveS) 3. Fix to Tcase.CNR1a as requested by Scott and Jerry. Recalc of Rlw.in|out.CNR1a using Rpile and corrected Tcase. 4. NCAR prop data from Jun 17-Jun 21 21:15Z flagged as NA. (The azimuths were entered into the props on Jun 21). The OKMN data starts on Jun 24. 5. Units of rain corrected from "183mm/hr" to "mm/hr" in netcdf file.
This will be the final daily log. the project is over today. Intercomparisons for the radiation sensors and the hygrothermometers are underway and will continue until Sunday a.m. cocklebur will be taken down shortly. Weather: Mother nature has blessed us with rain accompanied by lightening. Teardown will have to wait until the weather passes.
Both UW sonics have been removed from the tower and the tower is down. Water was noticed in the space between the boom and the connector end.
As of 430cdt the tower with hygrothermometers was lowered and comparison test was started. The tower is level to the ground with the sensors pointed to the south. The new blower remains connected to all the sensors except the middle one (6.5) The Radiation comparison began about 4:30cdt. Sensors are placed on a piece of plywood laying on top of the schwartz box. LEvel enough for govt. work. Fans are connected.
Aug 7 Friday Last full day of ops!!! Wx: Very much the same as yesterday. AM clear, hazy in east. High expected mid 90`s Base: OK. T/RH: OK. Dropped tower at 4:30cdt for 24 hr comparison. P: OK. Wind: OK. Radiation: Normal. 4:00 cdt began start of 24 hr comparison test. (T,G,M)soil Gsfc: Good agreement. Msoils: ok. Tsoil: ok. Same, NCAR#1 still high during daytime. NCAR#3 still lower at night Sonics: normal. NUW1 down NUW2 down. Removed sensors and tower today. Krypton: OK. fastT: Same. bph: OK. Rain: Are You Kidding? Comments:
Aug 6 Thursday Wx: AM clear, hazy in east. High expected upper 90's. :-( Not what the PI needs.. By afternoon some alto-Q clouds developed, perhaps 40% coverage. Base: OK. Reprocessing of covars to add OKMN variables resulted in problems with the legend labeling but the data are presented. T/RH: OK. 0.5m,1.5m,4.5m,9m on MegaTurbo aspiration. RH: the OKMN 1.5m/9m agree with each other and are suspiciously close to each other but not as consistent with the NCAR sensors at the same level. The OKMN 'sniffer' used in the bowen ratio has clearly much slower response. NCAR 6.5m is reading less than accurately due to fan. P: OK. Wind: OK. speed profile looks good. Radiation: Normal. Will need to look more closely at sensors with clouds for smaller changes like response time. Rnet is consistent except for occassional excursions by the OU NRLite. This occurred this morning with the rain, but also for ~2 hours yesterday afternoon in cloud cover around ~11:00 CDT Rlw offset on CNR1a in/out ~+25w/m^2 (T,G,M)soil Gsfc: Good agreement. Msoils: ok. Tsoil: ok. Same, NCAR#1 still high during daytime. NCAR#3 still lower at night Sonics: normal. NUW1 began losing asamples again last night and data looks bad once again. We will take it down today also since #2 is out of action. Data not good enough for the type of intercomparisons needed anyway. NUW2 down. Krypton: OK. fastT: Same. NCAR fast-t is erroneously high. bph: OK. Rain: 1.8 mm (7-tips) at about 6:00 CDT 5 Aug. Comments: Some trouble plotting using "geo" coords. Instrument coords. work ok. This was an effect of having an extra sonic (csat) without having an orientation field entry in sonics/azimuth.dat
Wed. 5 Aug, ~11:00 UW#2 data stream died At ~15:00 the UW2 apparently brought down the nc_server/ingest. After reboot of system and a few power cycles of the UW2, serial communications with the UW2 sonic continued to spit out garbage. Some portions of the message output was OK and the main command menu would print out interspersed with garbage. Removed sensor: water penetrated into the boom around the connector. No obvious water in and around the PC board or for that matter the connectors themselves. Nevertheless, the whopping 1.8mm of rain this morning must've been too much for the UW. NOTE this UW was the one mounted upside down and it may have gotten water into the 2 mounting screws which normally would be on the bottom of the xarm. 6:00 CDT Rain, 1.8mm 11:00 UW sensor data going bad 15:00 UW hung up base ingest.
Restart of nc_server / adams 5 Aug, 98 ~15:30 The ingest processes locked up at about 15:06. Reboots attempted including power cycle of fiber-optic xcvr in base. Restarted nc_server and ingest. Rebooted Adams. Everything back online except... Cause: The UW Sonic #2. (See associated log message) It appears that a spurious control character from the sonic may have caused a odd sort of hang on the adam net.
Aug 5 Wednesday Wx: Overcast, Some rain overnight ~1.8mm recorded. High expected upper 80's. Base: OK. Reprocessing of covars to add OKMN variables resulted in problems with the legend labeling but the data are presented. See log message about base and UW#2 bringing down DAQ briefly around 20:00 - 20:30Z. T/RH: OK. 0.5m,1.5m,4.5m,9m on MegaTurbo aspiration. RH: the OKMN 1.5m/9m agree with each other and are suspiciously close to each other but not as consistent with the NCAR sensors at the same level. The OKMN 'sniffer' used in the bowen ratio has clearly much slower response. NCAR 6.5m is reading less than accurately due to fan. P: OK. Wind: OK. speed profile looks good. Radiation: Normal. Will need to look more closely at sensors with clouds for smaller changes like response time. Rnet is consistent except for occassional excursions by the OU NRLite. This occurred this morning with the rain, but also for ~2 hours yesterday afternoon in cloud cover around ~11:00 CDT Rlw offset on CNR1a in/out ~+25w/m^2 (T,G,M)soil Gsfc: Good agreement. Msoils: ok. Tsoil: ok. Same, NCAR#1 still high during daytime. NCAR#3 still lower at night Sonics: normal. NUW1&2 Sample loss problem removed after zeroing process. NUW1 is beginning to act up again but not nearly as bad as before. Data is probably not good enough for the type of intercomparison needed. NUW#2 data kaput ~11:00, sensor died totally later. Krypton: OK. Has some trouble with the rain as expected but comes back. fastT: Same. NCAR fast-t is erroneously high. bph: OK. Rain: 1.8 mm (7-tips) at about 6:00 CDT 5 Aug. Comments: Some trouble plotting using "geo" coords. Instrument coords. work ok. Soil sample taken Wednesday 5 August, ~11:30 CDT after having a little rain last night. This is probably the last opportunity for a sample.
Aug 4, 15:00 Closed nc_server covar file via: nc_close aster Removed covar files: $ASTER/projects/OASIS98/results/covar/... oasis.980801.nc oasis.980802.nc oasis.980803.nc oasis.980804.nc Rerunning covars: $ASTER/projects/OASIS98/scripts/covar_redo for these days and the OKMN_process as well. EDITED: okmn.q to add netcdf fields from OU data: RH.1.5m.2 HMP35 in Beehive T.1.5m.2 RH.1.5m.3 Rotronics in Beehive T.1.5m.3 Purpose: cross check of the bowen ration 'sniffer' system by looking at the other two t/rh readings being monitored by the OU system.
Aug 4 Tuesday Wx: Cloudy, 30% rain in the forcast. Some drops coming out of the clouds. High expected around 90-F. Base: OK. Reprocessing of covars to add OKMN variables resulted in inability to look at covars using rh values. Hopefully this will disappear soon. T/RH: OK. 0.5m,1.5m,4.5m,9m on MegaTurbo aspiration. RH: the OKMN 1.5m/9m agree with each other. NCAR 6.5m is reading less than accurately due to fan. P: ok. Wind: speed profile looks good. Radiation: normal. Will need to look more closely at sensors with clouds for smaller changes like response time. (T,G,M)soil Gsfc: Good agreement. Msoils: ok. Tsoil: ok. Sonics: normal. NUW1&2 Sample loss problem removed after zeroing process. Both have believable wspd and dir for now anyway. No obsrvance of daylight or temp problem, just seems to be a noisy transducer. NUW1 is beginning to drift. Krypton:OK. fastT: Same. NCAR fast-t is erroneously high bph: OK. Rain: No measurable wet so far. Comments:Some trouble plotting using "geo" coords. Instrument coords. work ok.
Aug 3 Monday Wx: Cloudy, rain in the forcast. High heat index due to higher rh. Base: OK. T/RH: OK. 0.5m,1.5m,4.5m,9m on MegaTurbo aspiration. RH: the OKMN 1.5m/9m agree with each other. NCAR 6.5m is reading less than accurately due to fan. P: ok. Wind: speed profile looks good. Radiation: normal. NRlite has glitch around 0630 today. Same time as our rain event. (T,G,M)soil Gsfc: Good agreement. Msoils: ok. Tsoil: ok. Sonics: normal. NUW1&2 Sample loss problem removed after zeroing process. Both have believable wspd and dir for now anyway. No obsrvance of daylight or temp problem, just seems to be a noisy transducer. Krypton:Some difference between OKMN "H" and ours. Theirs seems low yesterday no obvious reason in sight. OKMN h2o'h2o' field has obvious offset of ~.2 ?? Scott cleaned OKMN krypton today (see entry) fastT: Same bph: OK. Rain: Rain atlast! .25mm at 0630. Rain gauge works!! Comments:
I happened to notice that the "MR" on two days: Jul310000-JUl310730cdt and Jul312000-Aug010900, that the MR from OKMN1.5 and OKMN9.0 are much lower than the rest. This happened when the wind direction was north easterly (~50) Any other direction and the "MR" blends in with the rest. Speed may also be an issue. More observation may be needed. It may be just me making trouble.
After seeing the accuracy of NUW1 go south again. We decided to rezero. It was noticed that there was a diurnal pattern to the sample loss problem. After zeroing the NUW1 the sample rate stayed at 40 even after the signal began to go. It was then decided to rezero NUW2. So far the sample rate is at 40 where it normally would have 36 or so. Will watch to see how long this lasts. NUW2 U T Rh d=.201 37.9 21.87 o= ??? V d=.20 37.89 21.78 o=.028 W d=.199 37.95 22.02 o=??? NUW1 U d=.201 38.1 21.89 o=3.1 V d=.199 38.1 22.2 o= ?? W d=.198 37.9 22.0 o= .01
Aug 1 Saturday. Wx: Clear in am, RH ~60% Forcast is same: ~100f, 20% chance or rain. Ground dry as a bone with some cracks. Severe water restrictions in effect. Water smelling and tasting like dirt. Base: OK. T/RH: OK. 0.5m,1.5m,4.5m,9m on MegaTurbo aspiration. RH: the OKMN 1.5m/9m agree with each other. NCAR 6.5m is reading less than accurately due to fan. P: ok. Wind: speed profile looks good. Radiation: normal. (T,G,M)soil Gsfc: Good agreement. Msoils: ok. Tsoil: ok. Sonics: normal. Noticed diurnal sample loss from both NUWs, after zeroing NUW1 the samples remained at 40. While the sample loss for NUW2 stayed below 40 during the day. Will see if sample count returns to 40 for NUW2 after zeroing. UW1 Somewhere on the 31st NUW1 began going out of whack again. After Rezeroing (see entry for sonics) looks good again. UW2 Zeroed after doing NUW1 to see if sample count stays up. So far things look good. Krypton:Some difference between OKMN "H" and ours. Theirs seems low yesterday no obvious reason in sight. OKMN h2o'h2o' field has obvious offset of ~.2 ?? Scott cleaned OKMN krypton today (see entry) fastT: Same bph: OK. Rain: Rain??? hah! Comments:
1400cdt Scott Cleaned the 4.5m Krypton.
Aug 1 Saturday. Wx: Clear in am, RH ~60% Forcast is same: ~100f, 20% chance or rain. Ground dry as a bone with some cracks. Severe water restrictions in effect. Water smelling and tasting like dirt. Base: OK. T/RH: OK. 0.5m,1.5m,4.5m,9m on MegaTurbo aspiration. 6.5 using PAM micronel. Penetration depth of vertical orientation appears no more than 2-4cm so we will not reorient the hygrothermometers to horizontal. Reduced winds yesterday caused OKMN sensors to be a bit warmer than respective NCAR. RH: the OKMN 1.5m/9m agree with each other and NCAR 1.5m/9m agree with each other much better than between their respective levels. P: ok. Wind: speed profile looks good. Radiation: normal. See also log message 141 about comparison of rad. Short-Waves: Incoming Epplys have differences up to 20-25 W/m2 day with NCAR higher; 5 at night, hmmm? OKMN being zeroed, NCAR says -5... NCAR SWout is low by about 25w/m**2 peak: possibly shadow effect of rad-stand and cr10 box. Long-Waves: long-waves generally less than 10 W/m2 difference. Net Rad: data has significant differences with 4-component Sums, different spectral response, but also between net rads themselves up to 40 w/m2 between Q7 and NRlite. OKMN 4-comp K&Z CNR1 is significantly different in LW and SWin components. (T,G,M)soil Gsfc: Good agreement. We still don't have a good calibration for the OU Msoil. Msoils: NCAR (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday. (consistent with plants drawing down the moisture as they transpire during the day). Tsoil: sensors are reporting significantly different values. NCAR-1 peaks ~4deg warmer in midday and 1-deg warmer at night but consistent with #2 at night. Installation issue or vegetation? NCAR-3 appears shaded in midday and ~1deg cool at night. Sonics: normal. UW1 looks much better since re-zeroing but there were a couple of periods where it didn't agree with the ensemble and appears to be acting up again, so it's still a bit of unknown. Worked ok from ~7/30 10:00 - 7/31 14:00 CDT and for other brief periods. UW2 Steve adjusted the calibration routine, but the virtual heat flux looks inconsistent Momentum flux from both look reasonable and consistent which is nice. Krypton: Same. OKMN still has abnormal high variance evidenced at night. fastT: Same bph: OK. Rain: Rain??? hah! Comments:
Friday afternoon we tried some serious testing of the intake tubes on the trh sensors. We put a source of smoke close to the sides of the intake and all around in different configurations. The general conclusion was that in calm conditions that there is very little air being drawn from around the tube. Most if not all of it came from a column below the tube to about 2 inches below if that. With wind this column decreases. Certainly this warrants a more controlled study as cheap cigars are not good smoke reference instruments. The testing did alter temperature measurements at the .5m level from 1400 to 1500. or so.
July 31 Friday Wx: Widespread high cirrus, Expecting 30% chance of rain today. Rh higher Resulting in hazy visibility. High expected to be below 100. We'll see. Ground dry as a bone with some cracks. Severe water restrictions in effect. Water smelling and tasting like dirt. Base: OK. Aster terminal hung up after first look in a.m. Used Xsun in root to kill process. T/RH: OK. Over the last day or so since MegaTurbo was installed, 4.5m sensor is showing a cooling trend on the order of 1c. in the day & .5c. at night. The .5m is about 1c. higher on the average in the day and .3c. cooler at night before the change in height and ventillation. P: ok. Wind: speed profile looks good. Radiation: normal. See also log message 141 about comparison of rad. Short-Waves: Incoming Epplys have differences up to 20-25 W/m2 day with NCAR higher; 5 at night, hmmm? OKMN being zeroed, NCAR says -5... NCAR SWout is low by about 25w/m**2 peak: possibly shadow effect of rad-stand and cr10 box. Long-Waves: long-waves generally less than 10 W/m2 difference. Net Rad: data has significant differences with 4-component Sums, different spectral response, but also between net rads themselves up to 40 w/m2 between Q7 and NRlite. OKMN 4-comp K&Z CNR1 is significantly different in LW and SWin components. (T,G,M)soil: Good agreement in Gsfc. We still don't have a good calibration for the OU Msoil. Our Msoils (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday (consistent with plants drawing down the moisture as they transpire during the day). Tsoil: sensors are reporting significantly different values. NCAR-1 peaks ~4deg warmer in midday and 1-deg warmer at night but consistent with #2 at night. Installation issue or vegetation? NCAR-3 appears shaded in midday and ~1deg cool at night. Sonics: normal. Lost uw2 data about 1400 yesterday. Steve O. changed cal file for UW2 about the same time. Suggest a repair of file. Krypton: ok. Krypton agrees well with OKMN except at night when OKMN reads a little higher fastT: Same bph: OK. Rain: Rain??? hah! Comments: About 1000 am the ingest computer for OKMN was disassembled for heat reasons and this stopped data collection for a couple of hours. Hopefully the data will be retrieved from the Campbell and added to our data set. Also Steve Oncley rapaired the error in the NUW2 sonic calculation. Things look great now.
I just changed the cal_file for nuw2 to reflect flipping upside down. To use this updated file, I've restarted covar on ragwort. Hopefully, the wind directions ("dir") should look better now.
Jul 30, ~12:00 CDT NCAR 4.5m, 9m Kyptons cleaned: 9m in particular improved perhaps confirming the suspicion about low variance. Volts Before After 4.5m ~.14 ~.34 (no 'pre' clean printed) 9m ~.29 ~.87
Jul 30, 9:45 CDT Zeroed UW#1 This was done because this sensor has been reporting erroneous 'U' data for several days beginning a day or two after being repositioned to point SE. Power cycling hasn't helped. Conditions: T~= 31.4degC, RH~=39% Reported by Sonic: Distance Offset U, (a-axis) 0.199176 1.845867 (egads!) V, (b-axis) 0.199507 .001124 W, (c-axis) 0.197715 not reported! We'll keep an eye on it. Suspect it won't make a big enough difference to correct the problems being observed...
July 30 Thursday Wx: Same stuff, same forecast: ~105, 20% chance of rain (hah!) OK was declared a disaster area to go along with Texas. we agree. Base: OK. T/RH: OK. See note regarding installation of MegTurbo at ~17:15CDT 7/29 NCAR 0.5m, 1.5m, 4.5m, 9m have MegaTurbo blower. NCAR 6.5m micronel fan.: Clearly reading higher than others. P: ok. Note OKMN pressure sensor doesn't have a static port but it appears that wind effects can be seen in the NCAR data. Wind: speed profile looks good. Radiation: normal. See also log message 141 about comparison of rad. Short-Waves: Incoming Epplys have differences up to 20-25 W/m2 day with NCAR higher; 5 at night, hmmm? OKMN being zeroed, NCAR says -5... NCAR SWout is low by about 25w/m**2 peak: possibly shadow effect of rad-stand and cr10 box. Long-Waves: long-waves generally less than 10 W/m2 difference. Net Rad: data has significant differences with 4-component Sums, different spectral response, but also between net rads themselves up to 40 w/m2 between Q7 and NRlite. OKMN 4-comp K&Z CNR1 is significantly different in LW and SWin components. (T,G,M)soil: Good agreement in Gsfc. We still don't have a good calibration for the OU Msoil. Our Msoils (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday (consistent with plants drawing down the moisture as they transpire during the day). Tsoil: sensors are reporting significantly different values. NCAR-1 peaks ~4deg warmer in midday and 1-deg warmer at night but consistent with #2 at night. Installation issue or vegetation? NCAR-3 appears shaded in midday and ~1deg cool at night. Sonics: normal. UW1 and UW2 are still spiking and losing samples. UW1 zeroed this am. More errors on 'a' axis and the reported offset was ~1.8. Data from it 'u' ...noisier transducer pair? Other components look pretty good but speed data is crummy. Virtual heat flux is ok, except of course for the noisy UWs. Krypton: ok. Our 9m variance is significantly less (30%) than the 4.5m Krypton, which may be too much to be real. Cleaned Kryptons today ~12CDT. fastT: Normal. NCAR fast-t.4.5m still has ~3.5-deg higher offset. This has apparently been the situation since the beginning. Our fast T still has somewhat less variance than the OU thermocouple. Both NCAR and OU fast-t have somewhat high variances at night. bph: OK. Rain: Rain??? hah! Comments:
July 29, Wednesday 17:30 CDT Installed new MegaTurbo fan on TRH tower. Moved 0.5m back down from pointing SE at 1.5m to original 0.5 level underneath the 1.5m trh. Levels w/ blower aspiration: 0.5, 1.5, 4.5, 9m Level w/PAM config. Micronel fan: 6.5m Gut feel observation is that the amount of aspiration on these 4 sensors is about the same as what the smaller blower was doing for just the 1.5 and 9m.
July 29 Wednesday Base: OKMN ingest problems: Last night at about the 9:30 record, some bad time tags were inserted into the $ASTER/projects/OASIS98/results/OKMN/980729.ast file: ...NORM,AST05F,"1943-02-05 -3:-32:-9.10655",... This caused Splus and the nc_server to barf and fill the /home partition. when a 77Mb netcdf file was written, oasis.430205.nc Also time stamps on written into the 'regular' oasis.980729.nc file subsequently via the covar process were bogus via the nc_server. Rebooted everything. Back online at ~12:40 CDT. Recreated covar files. Edited OU data, reran. NOTE, the raw ingest and file archive was OK once the ADAMs were back up and only the nc_server covar file stuff really had to be restarted. Also, mxreset did not work to the ADAMS after initially just restarting the nc_server. Gordon edited the "okman.q" function to skip over bad stuff.
ZEROING THE NUW SONICS: (Notes from Steve Oncley) ------------------------------------------------- > > > Did you have a zero chamber or do we need to make one? Procedure > looks easy. > Yes, there is a suitable chamber there. In the wall cabinet above where the Toshiba was sitting there should be at least 2 yellow "squishy" foam and 1 hard blue foam zero chambers on a middle shelf. The long blue foam chamber is what you want. It opens with a magnetic catch and closes fairly well over the path. You will need to know the temperature and RH when you do the zero. I did the zeros with the sensor on the tower (accessed using the step ladder) and rserial'ed to marigold 202(?) to grab current T/RH reading at 4.5m. You should be able to read the Xtemps and XRH displays as well. The biggest problem is, as you may have noticed already, is that rserial to the UWs gives you the prompt after you've entered the data. I just memorized the prompts: C (to enter calibration mode) Y (in response to: Are you sure?) xx.x (for temperature) yy.y (for rh, in percent) U, V, or W (for the path: U=a, V=b, W=c. HAVE THE CHAMBER ON THE APPROPRIATE PATH BEFORE HITTING RETURN.) (wait for about 40 dots, then hit "Enter" a few times to restart) As you've probably seen in the pages I inserted into the manual, path a is the north-south path, path b has the top transducer to the east, and path c you can figure out from there. Tony drew this in pencil on the top of the boom near the array. If you are going to zero one path, I would go ahead and zero all of them (for the one sonic). My guess is that zeroing isn't going to help. Bringing it inside and running it on the Toshiba may be necessary to figure out what is going on.
July 29 Wednesday Wx: Same stuff, same forecast: ~105, 20% chance of rain (hah!) OK was declared a disaster area to go along with Texas. we agree. Base: Marigold went down overnight: ~7/28 22:00 - 7/29 10:40 CDT Rawort taken down briefly to isolate Marigold problem: ~7/29 9:40,10:40 OKMN ingest problems: See separate message entry T/RH: OK. See note regarding installation of MegTurbo at ~17:15CDT NCAR 1.5m/9m have turbo blower. NCAR 0.5/4.5m/6.5m micronel fan.: Still reading higher than they should. The 6.5 in particular looks most suspicious, recording same as 4.5 in day, and same as 9m at night. NCAR 0.5m physically at 1.5m P: ok. Note OKMN pressure sensor doesn't have a static port but it appears that wind effects can be seen in the NCAR data. Wind: speed profile looks good. Radiation: normal. See also log message 141 about comparison of rad. Epply short-waves have differences up to 30 W/m2 during the day, long-waves generally less than 10 W/m2. Net Rad data has significant differences with 4-component Sums, different spectral response, but also between net rads themselves up to 40 w/m2 between Q7 and NRlite. OKMN 4-comp K&Z CNR1 is significantly different in LW and SWin components. SWin is lower by about 30w/m*2 peak. LW has NCAR SWout is low by about 25w/m**2 peak: possibly shadow effect of rad-stand and cr10 box. (T,G,M)soil: Good agreement in Gsfc. We still don't have a good calibration for the OU Msoil (I don't think that they do either). Our Msoils (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday (consistent with plants drawing down the moisture as they transpire during the day). Tsoil sensors are reporting significantly different values. NCAR-1 peaks ~4deg warmer in midday and 1-deg warmer at night but consistent with #2 at night. Installation issue or vegetation? NCAR-3 appears shaded in midday and ~1deg cool at night. Sonics: normal. System reboot was not automatic for the NUW1, and ATI-9m. Had to restart via rserial and it worked fine. UW1 and UW2 are still spiking and losing samples. UW1 is still bad. More errors on 'a' axis. Data from it 'u' ...noisier transducer pair? The others look pretty good but speed data is crummy. sigma_w/u* is low from the UWs, perhaps due to spatial averaging. Virtual heat flux is ok, except of course for the noisy UWs. Krypton: ok. Our 9m variance is significantly less (30%) than the 4.5m Krypton, which may be too much to be real. Perhaps we need to clean again? fastT: Normal. Our fast T still has less variance than the OU thermocouple. NCAR fast-t.4.5m still has ~3.5-deg higher offset. This has apparently been the situation since the beginning. bph: ok. Rain: rain??? hah! Comments: Trying to find a change that was made 22 July about the time the tower was dropped. the w'h2o'.prfl data is now significantly lower that the LE data. IS it the changing of the t/rh sensor? The addition of the bigger blower or a monkey in the software calculations?? All are possible. Lets remove one possibility at a time. Anyone with knowledge leading to the culprit should step forward now.
Jul 29 Marigold down: 7/28 22:00 - ~10:30 CDT Ragwort down briefly: 7/29 around 9:40, 10:40 and 13:00 CDT Upon arriving at base station, discovered Marigold was down. To isolate problem we used components from Ragwort, eventually finding some small bites in the fiber optic cable. Replaced cable with spare armored fiber cable spool between ragwort and marigold.
July 28, 15:35CDT Power Cycle UW Sonic #1 Reason: For the last 1-2 days this sensor has been reporting erroneous speeds/vectors. The UW's were reoriented on Friday July 24, before this one began acting up. That began on ~ July 26, 7-CDT.
July 28 12:30CDT Moved 1.5m trh to 9m and 9m back to 1.5m These new locations were what was the original configuration before we swapped them on 7/22 because of apparent offsets. Profile technique fluxes for these dropped noticably and since we also added improved ventillation at that time we want to determine how much of a factor just swapping the trh's was.
July 28 Tuesday Wx: High RH, some overcast ~40%, to N., Rotated from S at about 4am CDT. ~50 overcast. But forecast is for 103, 20% chance of tstorms. OK was declared a disaster area to go along with Texas. we agree. Base: ok. T/RH: OK. NCAR 1.5m/9m have turbo blower. NCAR 0.5/4.5m/6.5m micronel fan.: Still reading higher than they should. The 6.5 in particular looks most suspicious, recording same as 4.5 in day, and same as 9m at night. NCAR 0.5m physically at 1.5m P: ok. Note OKMN pressure sensor doesn't have a static port but it appears that wind effects can be seen in the NCAR data. Wind: speed profile looks good. Radiation: normal. See also log message 141 about comparison of rad. Epply short-waves have differences up to 30 W/m2 during the day, long-waves generally less than 10 W/m2. Net Rad data has significant differences with 4-component Sums, different spectral response, but also between net rads themselves up to 40 w/m2 between Q7 and NRlite. OKMN 4-comp K&Z CNR1 is significantly different in LW and SWin components. SWin is lower by about 30w/m*2 peak. LW has NCAR SWout is low by about 25w/m**2 peak: possibly shadow effect of rad-stand and cr10 box. (T,G,M)soil: Good agreement in Gsfc. We still don't have a good calibration for the OU Msoil (I don't think that they do either). Our Msoils (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday (consistent with plants drawing down the moisture as they transpire during the day). Tsoil sensors are reporting significantly different values. NCAR-1 peaks ~4deg warmer in midday and 1-deg warmer at night but consistent with #2 at night. Installation issue or vegetation? NCAR-3 appears shaded in midday and ~1deg cool at night. Sonics: normal. UW1 and UW2 are still spiking and losing samples. Overnight these were much better judging by a reset of cockpits at about 5pm. However the anomoly is still the UW1 uasamples. It is still dropping a lot down from 40 samples and hardly appears to ever get that many. Data from it 'u' ...noisier transducer pair? The others look pretty good. sigma_w/u* is low from the UWs, perhaps due to spatial averaging. Virtual heat flux is ok, except of course for the noisy UWs. Speed /Dir on UW#1, Dir on #2 has been a problem for the last two days. John will try rserial or power reset to see if trouble goes away. Krypton: ok. Our 9m variance is significantly less (30%) than the 4.5m Krypton, which may be too much to be real. Perhaps we need to clean again? fastT: Normal. Our fast T still has less variance than the OU thermocouple. NCAR fast-t.4.5m still has ~3.5-deg higher offset. This has apparently been the situation since the beginning. bph: ok. Rain: rain??? hah! Comments: Trying to find a change that was made 22 July about the time the tower was dropped. the w'h2o'.prfl data is now significantly lower that the LE data. IS it the changing of the t/rh sensor? The addition of the bigger blower or a monkey in the software calculations?? All are possible. Lets remove one possibility at a time. Anyone with knowledge leading to the culprit should step forward now.
July 27 Monday Wx: Oooow, low level (~3k) thin scud and north wind too in am; me like. Rotated from S at about 4am CDT. ~50 overcast. But forecast is for 105, 20% chance of tstorms...hmmm. OK was declared a disaster area to go along with Texas. we agree. Base: ok. T/RH: OK. NCAR 1.5m/9m have turbo blower. NCAR 0.5/4.5m/6.5m micronel fan.: Still reading higher than they should. The 6.5 in particular looks most suspicious, recording same as 4.5 in day, and same as 9m at night. NCAR 0.5m physically at 1.5m P: ok. Note OKMN pressure sensor doesn't have a static port but it appears that wind effects can be seen in the NCAR data. Wind: speed profile looks good. Radiation: normal. See also log message 141 about comparison of rad. Epply short-waves have differences up to 30 W/m2 during the day, long-waves generally less than 10 W/m2. Net Rad data has significant differences with 4-component Sums, different spectral response, but also between net rads themselves up to 40 w/m2 between Q7 and NRlite. OKMN 4-comp K&Z CNR1 is significantly different in LW and SWin components. SWin is lower by about 30w/m*2 peak. LW has NCAR SWout is low by about 25w/m**2 peak: possibly shadow effect of rad-stand and cr10 box. (T,G,M)soil: Good agreement in Gsfc. We still don't have a good calibration for the OU Msoil (I don't think that they do either). Our Msoils (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday (consistent with plants drawing down the moisture as they transpire during the day). Tsoil sensors are reporting significantly different values. NCAR-1 peaks ~4deg warmer in midday and 1-deg warmer at night but consistent with #2 at night. Installation issue or vegetation? NCAR-3 appears shaded in midday and ~1deg cool at night. Sonics: normal. UW1 and UW2 are still spiking and losing samples. Overnight these were much better judging by a reset of cockpits at about 5pm. However the anomoly is still the UW1 uasamples. It is still dropping a lot down from 40 samples and hardly appears to ever get that many. Data from it 'u' ...noisier transducer pair? The others look pretty good. sigma_w/u* is low from the UWs, perhaps due to spatial averaging. NUW2 flipped so u, and flux orientations are off. Virtual heat flux is ok, except of course for the noisy UWs. Krypton: ok. Moved 9m cable to OU Krypton for 1hr. Found noise to still be OU krypton is noisy and still has incorrectly high variance at night. Our 9m variance is significantly less (30%) than the 4.5m Krypton, which may be too much to be real. Perhaps we need to clean again? fastT: Normal. Our fast T still has less variance than the OU thermocouple. NCAR fast-t.4.5m still has ~3.5-deg higher offset. This has apparently been the situation since the beginning. bph: ok. Rain: rain??? hah! Comments:
July 26 Sunday Wx: Standard weather; hot, Ground beginning to crack due to lack of moisture. Cracks can be 12" long and 3/8" wide. Base: ok. T/RH: OK. NCAR 1.5m/9m have turbo blower. NCAR 0.5/4.5m/6.5m micronel fan.: Still reading higher than they should. NCAR 0.5m physically at 1.5m P: ok Wind: speed profile looks good. Radiation: normal. Epply short-waves have differences up to 30 W/m2 during the day, long-waves generally less than 10 W/m2. Net Rad data has significant differences with 4-component Sums, different spectral response, but also between net rads themselves up to 40 w/m2 between Q7 and NRlite. CNR1 is significantly different in LW and SW components. (T,G,M)soil: Good agreement in Gsfc. We still don't have a good calibration for the OU Msoil (I don't think that they do either). Our Msoils (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday (consistent with plants drawing down the moisture as they transpire during the day). Sonics: normal. UW sonics rotated and set to 22.5degrees. Samples for UW1 are excessively high with respect to the others...noisier transducer pair? sigma_w/u* is low from the UWs, perhaps due to spatial averaging. NUW2 flipped so u, and flux orientations are off. Krypton: ok. OU krypton is still noisy and has incorrectly high variance at night. Our 9m variance is still significantly less (30%) than the 4.5m Krypton, which may be too much to be real. fastT: Normal. Our fast T still has less variance than the OU thermocouple. NCAR fast-t.4.5m is still ~3.5-deg higher than bph-T or OUMN-t.4.5m. There is also a diurnal change of this of ~.4deg. This has apparently been the situation since the beginning. bph: ok. Rain: No rain. Hydrometors fell in the afternoon! I think I could count them on one hand. Perhaps we should do a calibration just to keep busy? Comments:
July 25 Saturday Wx: Standard weather; hot, Ground beginning to crack due to lack of moisture. Cracks can be 12" long and 3/8" wide. Base: ok. Upon arrival no xwinds, xtemp, or xrh was running. T/RH: OK. NCAR 1.5m/9m have turbo blower. NCAR 0.5/4.5m/6.5m micronel fan. NCAR 0.5m physically at 1.5m P: ok Wind: speed profile looks good. Radiation: normal. Epply short-waves have differences up to 30 W/m2 during the day, long-waves generally less than 10 W/m2. CNR1 is significantly different. (T,G,M)soil: Very good agreement in Gsfc. We still don't have a good calibration for the OU Msoil (I don't think that they do either). Our Msoils (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday (consistent with plants drawing down the moisture as they transpire during the day). Sonics: normal. UW sonics rotated at set to 22.5degrees. sigma_w/u* is low from the UWs, perhaps due to spatial averaging. Krypton: ok. Moved 9m cable to OU Krypton for 1hr yesterday. Found noise to still be present. OU krypton probably noisy. Our 9m variance is significantly less (30%), which is too much to be real. fastT: Normal. Our fast T still has less variance than the OU thermocouple. NCAR fast-t.4.5m is still ~3.5-deg higher than bph-T or OUMN-t.4.5m. There is also a diurnal change of this of ~.4deg. This has apparently been the situation since the beginning. bph: ok. Rain: No rain. Hydrometors fell in the afternoon! I think I could count them on one hand. Perhaps we should do a calibration just to keep busy? Comments: Steve leaves today.
from about 15:30 to 16:35 we tested the OU krypton through our data system. From 15:30 to 16:05 we had the pins on the cable from OU's krypton shorted to give zero volts (and thus zero variance) through their system. It worked, but they report lnV, so they got NA's. Thus, from 16:05 to 16:35, we put a battery at 1.319V on their connector instead. It gave lnV approx 6.84 (or was it 6.48?), with lnV'lnV' approx 1e-5 (pretty darn small). Thus, I don't think that the noise we've seen in their data at night is due to their data system. During this entire period, we also had their krypton into our data system. I see white noise on the power spectra from their signal, and a total variance of 0.0469, rather than 0.0383 from our 4.5m sensor. It isn't clear to me that the white noise is all of this difference. (We checked that the pathlengths of our 9m - whose calibration function was being used with their sensor - was almost exactly equal to the pathlength of their sensor; thus this difference shouldn't be due to the cal function.) We're back to our normal configuration now.
A +12 B Gnd C signal D Sig Gnd/Shield
We're getting a few sprinkles of rain from a slightly darker cloud right now.
Swapped out 1m. wind sensor. 12:30p.m. Old serial number 001, new serial number 002. No more spares. Wobbles in the wind. Looks like bent shaft as well as burnt bearings. Entered 305 as prop pitch as that is what was in old sensor. We are now using same prop in new sensor.
Jul 24, Friday, as of10:00 this morning, I flipped and rotated the UWs. nuw1 is upright and nuw2 is flipped. We'll have to shoot boom angles. After shooting the boom angles: uw1 = 158.5547 uw2 = 202.9708
July 24 Friday Wx: Standard weather; hot, 60% ovcst in am, hey, some possibility of rain today, high expected once again ~100F. Ground beginning to crack due to lack of moisture. Cracks can be 12" long and 3/8" wide. Base: Ragwort was down from ~23:54 until 8:30 CDT today. Meddling in Boulder (Gordon) was cause of crash. Initial reboot failed to bring up the sonics: socket problems. Power down of sonics during boot enabled everything to start. One NUW had to be encouraged to begin sending data. 10:40 another reboot of ragwort. Cause unknown. This time it came up without having to stop the sonics. Note that there was an extraneous cockpit running which i had to kill; that may have had been a factor. T/RH: OK. NCAR 1.5m/9m have turbo blower. NCAR 0.5/4.5m/6.5m micronel fan. NCAR 0.5m physically at 1.5m All NCAR systems oriented vertically Yesterday the gortex filter was removed from the 0.5m. Results hint a very slight improvement but not conclusive. Conclusion is that it isn't a significant improvement. NCAR 1.5m and 9m equivalent or better than OUMN. P: ok Wind: speed profile looks good. 1m prop definitely has shot bearing: wobbles, high resistance/treshold. Radiation: normal. Epply short-waves have differences up to 30 W/m2 during the day, long-waves generally less than 10 W/m2. CNR1 is significantly different. Nets: OKMN-NCAR Q7 about +10 W/m2 night, -10 W/m2 day. NRLite and CNR1 differences are -10/-50 W/m2 (night/day) and -20/-20 W/m2, respectively, referenced to NCAR Q7. Rsum(NCAR)-Q7(NCAR) is -20 W/m2 night, +/-20 W/m2 day. Rsum(OKMN)-Q7(NCAR) is -10 W/m2 night, 0 to -40 W/m2 day. All radiation sensors have much larger differences when clouds are present. I'm not sure why, given that we are comparing 5-min average statistics, and the sensor spacing is small with respect to cloud size. We should keep in mind the different shadow patterns for the various sensors. In particular, there is a big shadow from our Campbell logger box which forms just under our Epplys in the afternoon. (T,G,M)soil: Very good agreement in Gsfc. We still don't have a good calibration for the OU Msoil (I don't think that they do either). Our Msoils (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday (consistent with plants drawing down the moisture as they transpire during the day). Sonics: normal. K-probe losing up to 0.5% of samples during the day, which is acceptable. UW-probes losing up to 3% during the day. CSAT has been better than the K-probe according to cockpits. Statistics from UWs have been bad during to spiking, despite setting "despike" in prep.config. spd agrees within 0.2 m/s (except at 9m, obviously), dir to within 2 deg. H between NCAR-OKMN at 4.5m is within 30 W/m2 - pretty good. NCAR H at 9m is larger than at 4.5m - this doesn't make physical sense and could indicate significant path averaging at 4.5m?? LE from NCAR 4.5m is larger than both 9m and 4.5m OU. This makes physical sense in the case of 9m, and indicates inadequate sampling(?) in the case of OU. sigma_w/u* is low from the UWs, perhaps due to spatial averaging. Krypton: ok. I still think that the OU krypton is noisy. Our 9m variance is significantly less (30%), which is too much to be real. Perhaps we need to clean again? fastT: Normal. Our fast T still has less variance than the OU thermocouple. NCAR fast-t.4.5m is still ~3.5-deg higher than bph-T or OUMN-t.4.5m. There is also a diurnal change of this of ~.4deg. This has apparently been the situation since the beginning. bph: ok. Rain: No rain. Perhaps we should do a calibration just to keep busy? Comments: We trade Cathy for Tony today.
T.0.5m 13:25Z, 08:25CDT Removed Gortex Filter Raised T.0.5.m to physical height of 1.5m Purpose: Our TRH sensors have been reporting warm with respect to the OUMN passive gill shields. Turbo ventillation of the NCAR trh at 1.5 and 9 shows that increase aspiration is required for the trh in this orientation. We removed the filter to determine whether that will improve the performance of the standard sensor configuration with micronel DC fan. 19:00Z, 14:00 CDT Reinstalled Gortex Filter Results: Initial results appear to suggest that removing the filter did not make a difference. Weather: hot, sunny, SE winds varying 2-4ms.
July 23 Wx: Standard weather; hot, sunny, etc. Base: We had a quick adam reboot yesterday when OG&E pulled our electic meter - everything came back okay with no human intervention. Gordon has restored xwinds and xtemps - I never realized how much I like having them around. T/RH: Lots of stuff happened yesterday - see separate messages. Our philosophy is to make 1.5m and 9m as good as possible, move 0.5m up to 1.5m to allow us to test alternate configurations, and leave 4.5 and 6.5m in the old configuration until we can come up with something better. John is moving the 0.5m now (08:25), and will rotate it 120 degrees around the tower. The blower is now on just 1.5m and 9m andboth T and MR agree with OU from yesterday evening and last night. I don't know a physical mechanism which would cause MR problems, but would be cleared up by increased aspiration. John also removed the GorTex shield on the old 0.5m sensor to try to isolate this problem. On the positive(?) side, I think that most of these problems were induced by vertically orienting the T/RHs last week. The profile differences were less when the intake tubes were horizontal. In other words, the biggest differences between the passive (OU) and fan-aspirated systems are in strong winds with vertical tubes. We might have been fine in the present strong southerly winds if we had left the tubes horizontal pointing South! P: ok Wind: speed profile looks good. However, I've just noticed that the 1m prop was stopped even though the wind was strong enough to move the vane. Thus, the 1m prop bearings may be getting bad. Directions differences are mostly within 2 degrees. In orienting John, I was reminded that we should pay attention to bent vanes. Radiation: normal. Epply short-waves have differences up to 30 W/m2 during the day, long-waves generally less than 10 W/m2. CNR1 is significantly different. Nets: OKMN-NCAR Q7 about +10 W/m2 night, -10 W/m2 day. NRLite and CNR1 differences are -10/-50 W/m2 (night/day) and -20/-20 W/m2, respectively, referenced to NCAR Q7. Rsum(NCAR)-Q7(NCAR) is -20 W/m2 night, +/-20 W/m2 day. Rsum(OKMN)-Q7(NCAR) is -10 W/m2 night, 0 to -40 W/m2 day. All radiation sensors have much larger differences when clouds are present. I'm not sure why, given that we are comparing 5-min average statistics, and the sensor spacing is small with respect to cloud size. We should keep in mind the different shadow patterns for the various sensors. In particular, there is a big shadow from our Campbell logger box which forms just under our Epplys in the afternoon. (T,G,M)soil: Very good agreement in Gsfc. We still don't have a good calibration for the OU Msoil (I don't think that they do either). Our Msoils (CS615s) have not been corrected for their temperature error and show diurnal "peaks", whereas the OU signal is more believable with a hint of "dips" at midday (consistent with plants drawing down the moisture as they transpire during the day). Sonics: normal. K-probe losing up to 0.5% of samples during the day, which is acceptable. UW-probes losing up to 3% during the day. CSAT has been better than the K-probe according to cockpits. Statistics from UWs have been bad during to spiking, despite setting "despike" in prep.config. spd agrees within 0.2 m/s (except at 9m, obviously), dir to within 2 deg. H between NCAR-OKMN at 4.5m is within 30 W/m2 - pretty good. NCAR H at 9m is larger than at 4.5m - this doesn't make physical sense and could indicate significant path averaging at 4.5m?? LE from NCAR 4.5m is larger than both 9m and 4.5m OU. This makes physical sense in the case of 9m, and indicates inadequate sampling(?) in the case of OU. sigma_w/u* is low from the UWs, perhaps due to spatial averaging. Krypton: ok. I still think that the OU krypton is noisy. Our 9m variance is significantly less (30%), which is too much to be real. Perhaps we need to clean again? fastT: Normal. Our fast T still has less variance than the OU thermocouple. NCAR fast-t.4.5m is still ~3.5-deg higher than bph-T or OUMN-t.4.5m. There is also a diurnal change of this of ~.4deg. This has apparently been the situation since the beginning. bph: ok. Rain: No rain. Perhaps we should do a calibration just to keep busy? Comments: We trade Cathy for Tony today.
This logbook entry uses the data from LOGBOOK # 40. Using the following parameters: Cm = 1.9 MJ.m-3.degreeK-1 Co = 2.5 Cw = 4.2 vmf = 0.65 vof = 0.01 vwf = blkdens(or BD) * gwf(or gravmoist or gravimetric water fraction or GF) Cs = Cm * vnf + Co * vof + Cw * blkdens * gwf = 1.22 + 0.03 + 4.2 * blkdens * gwf = 1.25 + 4.2 * blkdens * gwf Corer (SS) date/time (CT) depth wet dry1 dry2 dry3 GF BD 6/26 11:30 4 cm 118.1 112.3 112.1 111.7 .06 1.22 6/26 11:45 6 cm 191.4 182.2 181.2 180.7 .06 1.33 Corer separated samples (TD) Date / Time Depth Fresh Dry Diff Grav fract blkdens vwf Cs 5 Jul 09:30 0-6cm 25.6 24.6 1.0 0.041 20.7 19.9 0.8 0.042 0.040 24.3 23.4 0.9 0.038 Waxed clod (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 5 Jul 10:00 0-3 39 ~ 59.2 ~ ~ 1.50 3-6cm 86 ~ 120.3 ~ ~ 1.40 Corer total (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 7 Jul 10:00 0-6cm 137 173.9 168.7 5.2 0.031 1.23 Corer separated (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 8 Jul 09:30 0-3cm ~ 83.3 69.1 14.2 0.205 ~ 3-6cm ~ 88.6 80.5 8.1 0.101 ~ Soil pit (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 12 Jul 0930 0-6cm ~ 19.3 18.4 0.9 0.049 21.2 20.2 1.0 0.050 0.049 ~ 22.0 21.0 1.0 0.048 Corer total (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 12 Jul 0930 0-6cm 137 184.0 173.3 10.7 0.062 1.26 Soil pit (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 14 Jul 0930 0-6cm ~ 20.6 19.9 0.7 0.035 27.4 26.5 0.9 0.034 0.035 32.5 31.4 1.1 0.035 Corer total (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 14 Jul 0900 0-6cm 137 183.0 175.8 7.2 0.041 Soil clod (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 14 Jul 0900 0-6cm 89.6 134.0 129.2 4.8 0.037 1.44 0-6cm 80.2 118.8 114.2 4.6 0.040 0.036 1.42 0-6cm 57.1 83.6 81.0 2.6 0.032 1.42 Soil pit (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 18 Jul 0930 0-6cm ~ 26.4 23.4 1.0 0.043 25.7 24.7 1.0 0.041 0.041 26.2 25.2 1.0 0.040 Corer total (TD) Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 18 Jul 0930 0-6cm 137 174.6 168.3 6.3 0.037 1.23 Soil clod Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs 18 Jul 0930 0-6cm 153.4 222.6 214.1 8.5 0.040 1.40 93.2 137.3 131.7 5.6 0.043 1.41 Date/ Time Depth Vol Fresh Dry Diff Grav fract blkdens vwf Cs
We turned off the turbo pump about 14:50, re-erected the T/RH tower, and turned the pump on about 15:05. The 4.5m is still using the fan aspiration whereas the other levels are all on the pump. It appears that the pumped sensors are now cooler than the fan, though the 9m is higher than the others. I would guess that it isn't getting enough flow through all the tubing. (Even though Tony has connected the pump tube half-way up the tower just to minimize this problem.) The results of the "laid-down" test (the tower laying flat on the ground) were inconclusive, since the natural aspiration was good at all levels with south winds. 22:00Z Removed forced ventillation on 0.5m and 6.5m trh and reinstalled DCfan. Now only 1.5m and 9m have forced vent. Purpose: examination of data w/forced vent on 0.5,1.5,6.5 and9 revealed that the aspiration was still insufficient and the OUMN passive gill shields in the ~4ms winds were still better. Result: Initial examination via xstrip indicates that the additional aspiration on 1.5 and 9 has improved both the response time and the absolute values.
We forgot to mention it earlier, but the OG&E man pulled our electric meter out today to check if we had tampered with it. (The security tab wasn't on the meter for some reason.) I think he was satisfied. Anyway, we decided to let the entire system take the hit as a test and took no special action. Of course, the base computers stayed up on the UPS (which showed running on battery and later charging the battery.) The adams all went down and then brought themselves back up with no intervention by us (including ragwort). The power was only off for about 5 seconds at 10:05.
We dropped the T/RH tower at about 10:00 and have just completed plumbing an aspiration system. About 12:05, we turned the turbo fan on, and it appears to be pulling a fair amount of air through at least the bottom sensors. We now have it lying almost flat (as of 12:23 it is completely horizontal), with the T/RH at 4.5m still using the old fan. We will run this as a comparison while we are at lunch, and re-erect the tower early this afternoon. We probably will leave the 4.5m unit the old way for another day or two for comparison. ALSO, we swapped the 9m and 1.5m units. We did this since we have seen different errors (presumably radiation) between at these two levels and it isn't clear to me how this could be radiation. Granted, we have now made two changes, and it might be difficult to separate them, but if this configuration works better, it won't matter!
I've measured the geometry for both UW arrays. However, I'm not terribly confident in them since the paper disks moved a bit on the double-sided tape and did not form a good reference surface. Of course, I also was eyeballing the centers. These readings are mostly within 1mm of similar measurements, which would imply an overall accuracy of 0.3 degrees. I'll work up the actual angles if I have time. uw1 uw2 ab/bb 87.00 86.87 bb/cb 86.74 86.82 cb/ab 87.01 86.78 at/bt 87.40 86.46 bt/ct 87.47 87.25 ct/at 87.03 86.41 ab/at 199.43 201.56 ab/bt 180.39 181.33 ab/ct 180.24 182.80 bb/at 180.48 183.13 bb/bt 200.60 201.46 bb/ct 181.31 182.81 cb/at 179.00 181.36 cb/bt 179.99 180.24 cb/ct 199.00 196.26
July 22 Wx: Standard weather; hot, sunny, etc. Base: System Up. Cockpit Displays: OK. T/RH: Temperature profiles look ok. NCAR Rad. shields have radiation induced errors in daytime compared with OUMN. Delta 1.5m ~.4deg, 9.m ~1deg. Blower Added:...see separate message for details. MR profiles Steve said they are not monotonic and he doesn't know why. Two observations, first the OUMN MR with respect to NCAR shows the diurnal effects of the NCAR radiation shield: why? Shouldn't the MR be unaffected and have the temp./rh induced shifts cancel? Second the profile of the 4.5m vs 9.m is not ordered as Steve mentioned. Which is the culprit, looks possibly like the 9.m which doesn't show a slight drop as night comes on. This may be related to the aspiration issue. will look more tomorrow with improved 9m ventillation. P: ok Wind: ok Radiation: ok. Still see a 20 W/m2 bias in CNR1a long-waves. Tony has been making seperate entries on his observations. (Use robust=F!) (T,G,M)soil: Very good agreement in Gsfc. We still don't have a good calibration for the OU Msoil. Sonics: normal. nuw1 statistics bad due to spiking. (I thought I'd fixed that using "despike"?). There seems to be a bit more spiking on the 4.5m sonic, esp. indicated by the reduced number of samples being averaged into the 20hz readings. Krypton: ok. I still think that the OU krypton is noisy. Our 9m variance is significantly less (30%), which is too much to be real. Perhaps we need to clean again? fastT: Normal. Our fast T still has less variance than the OU thermocouple. NCAR fast-t.4.5m is still ~3.5-deg higher than bph-T or OUMN-t.4.5m. There is also a diurnal change of this of ~.4deg. This has apparently been the situation since the beginning. bph: ok. Rain: No rain. Perhaps we should do a calibration just to keep busy? Comments:
I climbed the tower about 11:00 to check if the Everest had the correct emissivity reading. It is set to 0.97, rather than 0.98 that I had expected. I did this because we've seen about a 3 degree difference in Tsfc calculated from the Eppleys (using 0.98) and the Everest. I left the setting at 0.97. Also, while I was messing around, the yoke shifted on the tower a bit. I think I got it back in place and tightened the wing nut, but there is a possibility that it is now looking at a different patch.
A guy doing soil moisture measurements drove up about 10 min ago (~9:50) just to the east of the OU tower with his truck. (He first parked to the south and I told him to move from being directly upwind of the OU sonic.) He says he'll be here for "quite a while". Data from this morning should be used with caution - especially radiation data. Of course, he also put a set of tracks through the grass directly upwind. I couldn't catch up to him by running - sorry! (I gave him a bit of a lecture on site discipline at OASIS (rather than normal mesonet) sites, but I don't think it sunk in.) P.S. "Nathan" left at 11:28.
At 09:00 I cleaned the domes of the four component array and the Q7. I also checked the level of the leveling platform (Swartzenager). It was level, N-S, E-W, to ~ 0.2 degrees.
July 21 Wx: Standard weather; hot, sunny. Forecast is for 104 today. The extended forecast is to get below 100 on the day I leave! Base: System backup done yesterday - probably won't have to do it again. T/RH: Temperature profiles look ok. MR profiles are not monotonic - I don't know why. We are waiting for the blower to arrive today with John to implement better aspiration. P: ok Wind: ok Radiation: ok. Still see a 20 W/m2 bias in CNR1a long-waves. Tony has been making seperate entries on his observations. (Use robust=F!) (T,G,M)soil: Very good agreement in Gsfc. We still don't have a good calibration for the OU Msoil. Sonics: normal. nuw1 statistics bad due to spiking. (I thought I'd fixed that using "despike"?) Krypton: ok. I still think that the OU krypton is noisy. Our 9m variance is significantly less (30%), which is too much to be real. Perhaps we need to clean again? fastT: normal. Our fast T still has less variance than the OU thermocouple. I still wonder if we should try making a better probe. bph: ok. Rain: No rain. Perhaps we should do a calibration just to keep busy? Comments: I've created a small file of the commands I've used to create plots to address the status issues. I'll give this to John and Cathy.
I've just done a system backup to tape#6 by: cd /usr/local/adm/backup ./backup 6 The next backup should be to tape #1.
Inspection of the radiation record from the beginning of the program until July 20, indicates that July 15 was a most nearly perfect day. The 24 hour period: July 14, 18:00 until July 15, 18:00 was used to compare radiometer responses. Before undertaking the analysis, the pyrgeometer corrections were evoked by: dpar(robust=F) A comparison was made between the three four components system: NCARsum, OKMNsum and CNR1asum. For these systems the four components sw.in, sw.out, lw.in and lw.out can be individually examined as well as algebraically added to form a summation or "sum" The NCARsum and the OKMNsum both use Eppley radiometers, whereas the CNR1asum uses Kipp and Zonen radiometers. Note that the CNR1asum is designated Rnet.CNR1a, but is, in fact, a sum sw.in: NCAR and OKMN agree well during the day, with a maximum difference OKMNsw.in < NCARsw.in by 20 Wm-2 at noon. The CNR1a shows a greater difference with a maximum difference CNR1asw.in < NCARsw.in by 60 Wm-2 at noon At night the OKMNsw.in is set, by software, to be 0.0 Wm-2, The NCARsw.in has an instrumentation response of - 4 to -2 Wm-2. The CNR1asw.in also shows this instrumentation response. For the CNR1a the value is -10 Wm-2. These nighttime negative instruentation responses are due to a real export of energy by the radiometers. The treatment of the OKMNsw data is probably reasonable, but masks the problem, which also occurs during the daytime. sw.out: In the day time the three systems differ over a range of 25 Wm-2 at noon. As the three look down at different surfaces this can be due to the albedo differences. Thus the OKMN albedo is greater than that for the NCAR site because a different grass cutting method is used for the land under the OKMN radiometer stands. There is also more surface shading directly under the radiometers on the NCAR stand by the CR10 box, boom and 4-component mount. At night the OKMNsw.out is set by software to be 0.0 Wm-2. The NCARsw.out and the CNR1asw.out show instrumentation responses of -2 and -5 Wm-2 lw.in: The OKMNlw.in response is very similar to the NCARlw.in response, both in the day and at night, with the exception of the 15 Wm-2 higher value for the 3 hour period around noon. This anomoly may be due to photodegradation of the vacuum-deposited silicon coating on the pyrgeometer dome. At night the CNR1alw.in shows a fairly consistant offset of CNR1alw.in > NCARlw.in of 20 to 30 Wm-2 In the daytime CNR1alw > NCARlw increases with a maximum difference of +60 Wm-2 at midday. This could be due to an incomplete dome heating correction or even to sensitivity to sw radiation. lw.out: The response of the three radiometer to the emission of lw radiation by the surface is simple. OKMNlw.out < NCARlw.out by 5 Wm-2 at night, OKMNlw.out > NCARlw.out by 5 Wm-2 by day Similarly CNR1alw.out > NCARlw.out by 20 Wm-2 by night CNR1alw.out > NCARlw.out by 35 Wm-2 by day The difference of both the OKMNlw.in and the OKMNlw.out to the NCARlw appear to be offsets rather than proportional differences in gain. Comparison of net radiometers and four components summations. The ******sum parameters are generated from the algebraic addition of the four components. The ******net parameters correspond to the output of integral net radiometers. Note that although the K&Z four component output is designated "Rnet.CNR1a", it is a summation product, and here is termed CNR1asum. Six systems were investigated: NCARsum, OKMNsum, NCARQ7, OKMNQ7, CNR1asum and NRLite. The general agreement was good with the only significant disagreements being the OKMNQ7 at night and the NRLite at noon. The midday anomoly of the OKMNlw is obvious. Responses of the sum/net systems compared to the NCARsum: Night-time Noon OKMNsum: +10 Wm-2 -25 Wm-2 if noon anomoly removed NCARQ7: +10 Wm-2 -15 Wm-2 OKMNQ7: +25 Wm-2 -20 Wm-2 CNR1asum: +0 Wm-2 -30 Wm-2 NRLite: +15 Wm-2 -50 Wm-2 Responses of the sum/net systems compared to the CNR1asum: Night-time Noon NCARsum 0 Wm-2 +20 Wm-2 OKMNsum +10 Wm-2 -25 Wm-2 NCARQ7 +10 Wm-2 0 Wm-2 OKMNQ7 +25 Wm-2 0 Wm-2 NRLite -10Wm-2 -40 Wm-2
July 19 Wx: Standard weather; hot, sunny. Base: Data backup on Sunday evening. Data capacity from 9% to 15% overnight T/RH: still radiative heating effects, Checked local ACE HARDWARE has all the fittings and pipe to outfit a big aspirator. Will have John or Cathy bring out a turbo blower.. P: ok Wind: Profiles of Spd/spd and Dir/dir show differences between prop and sonic results Radiation: Picked Jul 14 18:00 - Jul 15 18:00 as the most perfect radiation day and plotted comparisons between all radiometers. (T,G,M)soil: Have noted significant differences between corer and pit and clod gwf and bulk densities. Sonics: See "Winds". All sonics working. UW2 ran all night without spiking but UW1 did spike . Krypton: ok. fastT: ok. bph: ok. Rain: No rain Comments: The soil moisture is at ~4% gwf and doesn't seem to be decreasing further. Have asked Steve S to send out turbo pump. .
Xsun locked up, so I didn't get a chance to review today's cockpits. I assume all was normal by the way they've just come back up. I've commented out the psi-band stuff, since I don't expect to install it here. Thus cockpit shouldn't have any "R.I.P"'s anymore. I also have restarted covar on ragwort (data) to despike the UW data.
I've just started to look at the flow distortion from the parallel UW sonic array. The definitive comparison will have to wait until I have real array geometries loaded. (I need to obtain a calipers at least 8" long, which I could either try to buy tomorrow, borrow from OU, or have John bring out - after borrowing from our shop.) Also, I should redo covars with spike replacement. Perhaps I'll even start that now. In general the comparison is excellent (it should be for parallel!), except for wind directions from the NE. I assume that the wake of uw1 contaminates uw2's measurements for this direction and causes uw2 to read somewhat lower magnitudes, with more scatter. This is consistent with the data. I plan to change to a flipped and rotated configuration shortly before I leave next week.
I've just backed up data from 7/10-7/18. Disk usage has changed from 80% to 9%. This was a bit early, but the disk has been filling faster now that we are running 5 sonics, and I saw no reason to push into the 90% range. Besides, I plan to do another backup when John and I overlap (probably just before I leave here) to show him how its done.
July 19 Wx: Standard weather; hot, sunny. Winds back to a southerly regime. Temps were back above 100F yesterday. The paper said 102 for today also. Base: ok T/RH: still radiative heating effects, especially in stronger winds. Tony is working on it. P: ok Wind: ok Radiation: ok (T,G,M)soil: ok? Sonics: ok. same amounts of spiking. I'll try to measure the arrays today. Krypton: ok. fastT: ok. bph: ok. Rain: No rain Comments: I've just looked at the whole month's worth of data. I've found that Tony and I have been here during the hottest period! (Fortunately, we've been able to stay inside a lot.) I don't understand what is happening with water. The field still has a fair amount of green plants. (I would guess an LAI of green vegetation of about 1, and of brown vegation another 1. Tony guessed the same. We've taken some photos to document the state.) However, the root zone appears to be only 6 cm when we dig up clods and the soil moisture in this layer doesn't appear to be changing. Furthermore, the latent heat fluxes have been getting to 200 W/m2 through the month, with little trend. There are only 2 interpretations I've come up with: 1. Water is diffusing upwards from a deep reservoir to maintain the same water potential, balancing the transpiration loss from plants. 2. Water transpiration is dominated by a few plants with deep roots. I think this to be unlikely given the relative uniformity of the green surface cover. Perhaps we should dig deep someplace to map the moisture profile. (If we can break through!)
We just got back from a day of getting stoned (we visited 2 quarries), but everything appears to have worked fine in our absence. Good night.
Because I thought I saw that the sonic #2 array was distorted through the theodolite, we just check the pathlengths using the internal calibration. They all worked out within 1mm of each other, so the array obviously is okay. (It doesn't look too bad up close.) I still have to figure out how to measure the geometry.
We ran the vacuum cleaner from 9:00 to 10:40 CDT today on T/RH 1.5m. We are going to take a tour of OK, and don't trust running it while we are gone. We plan to stop back this evening to check on things.
July 18 Wx: Standard weather; hot, sunny. Presently clear, with low-level haze. Winds light and southerly. Winds were light and easterly (and variable) yesterday. Base: No problems. Scott brought 8 visitors from the university including the director of the mesonet and Doug Lilly. I also hosted Jeanne Schneider, who may be interested in looking at the soil moisture data. T/RH: Yesterday afternoon we gerry-rigged the vacuum cleaner to the T/RH at 1.5m in order to increase its aspiration. It appeared to help, with our temperatures during the test about 0.3 C lower than OU, though we didn't run it for long (we turned it off overnight). Also, our temperatures were generally lower anyway during the light winds. We'll continue this test today. Tony switched it back on at 9:00. P: good. Note that dat("P") now uses my temperature correction on our sensor and appears to work on new data, implying that the correction is constant. Wind: Spd and Dir profiles look OK. OU cups are low - I think that they were going to replace them yesterday, but I lost track of whether they did with all the visitors. Radiation: I've looked at the shortwave, longwave, and net rad time series for the last week. All of the OKMN sensors generally are within 20 W/m2 of ours, with a strong diurnal signature. However, the CNR1 sw.in is up to 60 W/m2 lower than ours, and both lw.in and lw.out appear to have a bias of about 20 W/m2. The resulting CNR1 Rnet only has differences of 30 W/m2 from our Q7. The NRLite Rnet has differences of up to 50 W/m2. You get what you pay for! (T,G,M)soil: The computation of Gsfc shows that most of the differences between our Gsoil measurements is compensated by Ssoil, so that Gsfc agrees to within 10 W/m2! It is obvious from the data that .1 was significantly different from the other measurements before Tony reburied it. The OU sensors are different by as much as 50 W/m2 during the day. Presumably, this is due to a slightly different albedo at their "plot" about 15 m away which would effect the local net radiation. Of course, any of the other energy balance terms also could be locally different. Sonics: The CSAT has been spiking the least (typically 4/day). The ATIs have both been spiking somewhat more (30/day?) during the heat of the day. The UWs have been spiking significantly, with 3-10% loss of raw samples during high temperatures. Presumably this is caused by the longer pathlengths. I don't trust the UW array geometries. Currently, we are using the default of 60 degrees for all angles, because I haven't measured them. Through the theodolite, it appeared that the UW2 array was twisted somewhat, though the zero calibrations indicated that the pathlengths were nearly perfect. Obviously, I should measure the geometries, but haven't figured out how to do it. [I can't use the "dummy transducers" that we built up for the old UWs and ATIs, since they screwed in and the new transducers aren't removable. Also, I don't have a set of calipers out here, though I should be able to borrow one from OU.] Krypton: ok. O. fastT: ok. . bph: ok. Rain: No rain Comments: Meltponds slowly increasing in size and number.
A persistant +ve difference has been seen for the aspirated NCAR T when compared to the OKMN natural flow T. NCAR T > OKMN T. One interpretation is that the NCAR system has insufficient aspiration. An attempt to drastically increase the NCAR aspiration flow was made. At 16:35 CDT the trailer vacuum cleaner was arranged to draw air from the exhaust pipe of the NCAR 1.5m TRH sensor. A high flow of air was drawn through across the sensor elements. At 18:10 removed the vacuum cleaner connection to the exhaust.
July 17 Wx: Standard weather; hot, sunny Base: No problems. T/RH: Comparison of NCAR aspirated TRH with OKMN behives: Dispite the changing of the intakes of the TRH from south facing horizontal to down pointing, the NCAR T > OKMN T. In fact there is no significant difference from the previous situation. Looking at the data from the horizontal intake period it is probable that there were wind speed.direction effects. P: ok. Wind: Spd and Dir profiles look OK Radiation: Yesterday an intercomparison of the radiation systems was started. (T,G,M)soil: The order of the soil T s has been changing. Ssoil is now available, thanks to Steve's diligent coding. Sonics: The uw1 and uw2 are up and running. The angles for the two sonics were shot with the theodolite . Krypton: ok. O. fastT: ok. . bph: ok. Look reasonable -. Rain: No rain Comments:
July 16 Wx: Yesterday morning was a nearly cloudless day,with shifting winds from the north. Today is hazy.. . Base: Last night a series of difficulties occured 19:17: Aster reboots, cocklebur can't access disk. Maybe a power problem? 20:10: Aster reboots again. Why?? 23:32: Adams reboot. This could have been Gordon attempting to fix the system. 23:37: Ragwort crashes. SerialSock gives ECONNRESET error. Probably related to too many high-rate sonics. 03:39: Ragwort starts up again by itself, but yarrow still dead. 07:21: Cocklebur reboots after Steve O typed "b" on console. 07:25: Ragwort reboots after Tony disconnects serial cable and Steve O "mxreset"s. It is possible that the difficulties were instigated by power failure(s) which managed to penetrate the UPS protection. First thing this morning the serial channels to ragwort were disconnected and later reconnected. The reporting rata for the two UW sonics was reduced to 5 Hz. NB the microwave clock was blinking this morning, inicating power interupt last night. The two UW sonics have been added to the array, but they had been on-line, on and off, for almost two days without any difficulty occuring. . T/RH: The Ts reported from the NCAR aspirated TRHs appear to be systematically lower than for the OKMN bee-hives. It was suspected that the effect of the.wind shifts interfered with the aspiration via the south pointing horizontal inlets. In the afternoon, all TRHs were reconfigured to the downward pointing intake configuration. The mounting levels were shifted up 34cm to maintain the same intake heights. P: ok. Wind: Profiles look good Radiation: pretty good. (T,G,M)soil: Gsoil1 now as good as any other. Tsoil 3 is phase advanced of other four. Sonics: Yesterday was another big day! The Uw sonics were zeroed and the path- lengths checked. UW2 was good but UW1 was noted to have a droopy top transducer set. Inspection noted that the epoxy joint was loose. The joint was redone and subsequently UW1 too indicated good pathlength . Krypton: ok. O. fastT: ok. . bph: ok. Look reasonable -. Rain: No rain Comments:
I just downloaded the following from the UPS's serial port (settings: 1200 baud, 8bits, no parity) at about 11:20 CDT Jul 16. It says that there were several instances of alarms, but that last night's event was: 18:11 Inverter Brown Out (code B) 19:00 Near low battery; low run time left 19:06 Low battery 19:25 Inverter Line Loss (code L) 19:29 Near low battery; low run time left 19:33 Low battery The times don't agree exactly, but seem to concur with our idea that there were two power outages last night. ------------------------------------------------------------------------ =>date Apr 16, 21:10:22 =>log Inverter log - Apr 16, 21:10:24 Date Start HH:MM:SS Typ Active* 04/16 05:15 00:07:49 L 04/16 04:01 00:55:03 B 04/08 13:33 00:00:21 L 03/21 03:26 00:03:54 L 03/19 20:55 00:02:02 C 03/18 20:51 00:00:01 R 03/18 20:23 00:28:05 L 03/16 23:33 00:02:02 C 03/15 23:27 00:00:01 R 03/15 23:27 00:00:22 L 03/15 23:27 00:00:01 R 03/11 23:06 00:00:32 L 03/11 16:46 00:00:21 L 03/04 17:37 00:00:21 F 03/02 00:17 00:00:23 L 03/01 21:41 00:02:02 C Alarm Log - Apr 16, 21:10:28 Date Start HH:MM:SS Typ Active* 04/16 05:23 00:30:07 A 04/16 05:19 00:04:26 D 04/16 05:19 00:04:26 B 04/16 04:56 00:02:36 A 04/16 04:50 00:06:11 D 04/16 04:50 00:06:11 B 02/02 12:40 01:03:03 A 02/02 12:34 00:06:05 D 02/02 12:32 00:07:50 B 01/27 19:26 00:00:01 B 01/27 19:26 00:17:13 M 01/26 19:16 00:01:01 A 01/26 19:16 00:00:14 D 01/26 19:16 00:00:16 B 01/26 18:29 00:01:01 A 01/26 18:29 00:00:15 D =>ahelp Alarm condition quick-reference list (* Indicates active alarm) * Alarm condition Ltr Bp Code - ---------------- --- ------- Low Battery A ._ Near Low Battery B _... High Battery C _._. Lo Run Time Left D _.. Low AC Output E . High AC Output F .._. Output Overload G __. Hi Ambient Temp H .... Sink Overtemp I .. User Test Alarm J .___ Reserved Alarm K _._ Check Cooling L ._.. Check Battery M __ Check Inverter N _. Memory Check O ___ Shutdn Activated P .__. =>
I moved both UW sonics about 2mm to the west between the brackets on the S crossarm - in other words, less than 1 degree. I also elevated them a bit with foam rings, about 1mm thick when compressed. This was done to prevent the arms from moving much. I'll now shoot boom angles. P.S. As noted in the status, these sonics were changed to report at 5 samp/s to reduce the data load on ragwort. P.P.S. Boom angles are: uw1: 001 deg 8' 00" uw2: 001 deg 43' 18"
July 15 Wx: Yesterday morning was a nearly cloudless day,with shifting winds from the north. Today is hazy.. . Base: Last night a series of difficulties occured 19:17: Aster reboots, cocklebur can't access disk. Maybe a power problem? 20:10: Aster reboots again. Why?? 23:32: Adams reboot. This could have been Gordon attempting to fix the system. 23:37: Ragwort crashes. SerialSock gives ECONNRESET error. Probably related to too many high-rate sonics. 03:39: Ragwort starts up again by itself, but yarrow still dead. 07:21: Cocklebur reboots after Steve O typed "b" on console. 07:25: Ragwort reboots after Tony disconnects serial cable and Steve O "mxreset"s. It is possible that the difficulties were instigated by power failure(s) which managed to penetrate the UPS protection. First thing this morning the serial channels to ragwort were disconnected and later reconnected. The reporting rata for the two UW sonics was reduced to 5 Hz. NB the microwave clock was blinking this morning, inicating power interupt last night. The two UW sonics have been added to the array, but they had been on-line, on and off, for almost two days without any difficulty occuring. . T/RH: The Ts reported from the NCAR aspirated TRHs appear to be systematically lower than for the OKMN bee-hives. It was suspected that the effect of the.wind shifts interfered with the aspiration via the south pointing horizontal inlets. In the afternoon, all TRHs were reconfigured to the downward pointing intake configuration. The mounting levels were shifted up 34cm to maintain the same intake heights. P: ok. Wind: Profiles look good Radiation: pretty good. (T,G,M)soil: Gsoil1 now as good as any other. Tsoil 3 is phase advanced of other four. Sonics: Yesterday was another big day! The Uw sonics were zeroed and the path- lengths checked. UW2 was good but UW1 was noted to have a droopy top transducer set. Inspection noted that the epoxy joint was loose. The joint was redone and subsequently UW1 too indicated good pathlength . Krypton: ok. O. fastT: ok. . bph: ok. Look reasonable -. Rain: No rain Comments:
The winds have been calm for reasonably long periods 2 and 3 nights ago. These would be good candidates to look at prop/cup stall speeds.
Based on several pieces of evidence (pathlengths of 18.7 cm after zeroing, looking crooked, and having to pivot the mount last night), I realized that the sonic array was damaged during shipping. (I am guessing that this happened on the way TO ATI, since their pathlengths also were 18.x.) After taking it down, one, and later two of the epoxy joints separated. I reapplied epoxy about 12:00 today and baked it in the car from 1:00 - 4:30. I then reassembled and mounted it, and have just rezeroed it. The coefficients are now: A B C pathlength 0.198673 0.199728 0.198278 offset -0.047704 -0.028221 0.018013 The offsets are a bit larger than I would have liked, but the pathlengths now look pretty good (though still not as close to 0.200 as nuw2). FINALLY, we are now starting the parallel part of the flipped and rotated tests on the UWs!! Note: We still need to shoot boom angles.
We spent this afternoon modifying all the T/RHs to point downwards, since we've seen more evidence of radiation errors in the NE winds (see today's daily status.) We moved the mounts up 34 cm, to keep the inlets at the same height as before. For a short time, the 6.5m read bad data, since I hadn't seated a connector properly. Everything should now be fine. All this was done from about 2:00 to 4:00 CDT.
The UW sonics have been moved up to 4.5m in the nominally parallel configuration. (I had wondered why the data didn't agree better between the UW and ATIs and then realized that the UWs had been at 1m.) Unfortunately, it appears from a distance that the UW1 (actually UW3) array is bent! This also would explain why the zero calibrations found that the paths were 18.8, rather than 20 cm. I noticed that the array had been skewed during shipping, but it may have suffered even more. I'm going back now to bring it down and try realigning it in the jig.
A bouyancy method was devized to determine the bulk density of the soil. The soil at OASIS is compact and lends itself to the clod method of bulk density determination. A chunk of the uppermost ~10cm of soil is brought into the trailer and, using a plasterers trowel and a small saw, is shaped into regular rectangular prisms, 6 cm deep and ~ 4 cm on a side. The prisms are weighed fresh, baked for two days and then weighed dry. Melted parawax is dribbled all over the dried clod using a heat gun so the clod is impregnated with wax and made water proof without altering its form or volume. Conventionally the volume of the clod is then determined by displacement of the water level in a graduated container. A second method of determining volume involves weighing the waxed clod in air and then suspended in water. Fortunately the soil balance has a suspension hook which enable this to be done. Apparent wt of waxed clod suspd in water = wt of waxed clod - bouyancy Bouyancy of waxed clod = Volume of waxed clod * density of water M.wx.sus = M.wx - V.wx * 1 V.wx = M.wx - M.wx.sus Bulk density of dry clod = Mass of dry clod / Volume of dry clod blkdens = M.dry / V.dry Volume of dry clod = Volume of waxed clod V.dry = V.wx = M.wx - M.wx.sus blkden = M.dry / M.wx - M.wx.sus Example: The clod made from the sample collected 5 Jul, weighed dry 7 Jul and had bouyancy determined 15 Jul Top 6cm clod dry weight , M.dry = 120.3g Top 6cm clod waxed weight , M.wx = 136.4g Top 6cm clod waxed, suspended weight , M.wx.sus = 50.4g blkdens = M.dry / ( M.wx - M.wx.sus ) = 120.3 / ( 136.4 - 50.4 ) = 120.3 / 86.0 = 1.40 g . cm-3 Date Depth Fresh Dry Waxed Immersed Volume Bulk density 5 Jul 0-6cm 120.3 136.4 50.4 86.0 1.40 0-3cm 59.2 64.1 25.1 39.0 1.52 Date Depth Fresh Dry Waxed Immersed Volume Bulk density 14 Jul 0-6cm 134.0 129.2 139.1 49.5 89.6 1.44 0-6cm 118.8 114.2 121.8 41.6 80.2 1.42 0-6cm 83.6 81.0 87.7 30.6 57.1 1.42 Date Depth Fresh Dry Waxed Immersed Volume Bulk density
Both UW sonics were just calibrated. nuw1 (east): [SUW3] A B C pathlength 0.187446 0.188175 0.189011 offset -0.011071 -0.009161 -0.000487 nuw2 (west): [SUW4] pathlength 0.199335 0.199497 0.199539 offset -0.013521 0.015395 -0.006920 All the offsets look good to me, and the pathlengths for nuw2 are great. I don't know why the pathlengths for nuw1 are short, but I'll ignore it for now. Now I get to figure out what is wrong with the calibration routine.
July 15 Wx: Clear, a bit hazy. Slightly cooler than usual. Light winds from E. Base: Still floundering with dat code for soil. Found that the constants we are using for the OU moisture aren't working (giving NAs). Jerry is checking. Last night started work processing OU Bowen ratio measurements, ultimately to yield w'h2o'.prfl. Got pretty far, but saw a sign reversal problem. Jerry will check on this also. Also created dat.azimuth which reads a file of sonic boom angles. dat.dir still isn't picking this information up properly. T/RH: No T/RH reporting problems since I replaced the HC11 board. The NCAR sensors do have large (0.5 C) radiation errors during winds with a northerly component. See the graph of T NCAR-OU vs. north wind component attached to this entry. Both 1.5m and 9m show this trend. P: ok. I've created a dat.P with my temperature correction so that we can check if the temperature dependence is constant. It gets the magnitude of the pressure variation better, though there still is a large phase shift between the NCAR and OU signals. Wind: ok. Spd profile looks good. NCAR speeds are greater than OU. Radiation: pretty good. (T,G,M)soil: ok. See Tony's extensive comments elsewhere in this volume. Sonics: Yesterday was a big day! All sonics are now operating, though we need to zero the UWs and work on their calibration routine. That's the first task for today. Krypton: ok. OU cleaned theirs 2 days ago, so the means are now closer and the variance is smaller (though there still appears to be a noise floor at night.) The fluxes never were too bad between their system and ours. fastT: ok. Variance from OU's is somewhat higher than ours, which could be either (or both) spatial filtering of our signal or noise on theirs. bph: ok. Look reasonable - lower variance than fast sensors, but same shape. Rain: No rain Comments:
Tony and I just shot the boom angle for the 9m ATI with the theodolite. His reading was: 3 degrees 16' 40" My reading was: 3 degrees 14' 08" I think both readings were about of equal weight, so I would average these to 3 degrees 15'. This was shooting the back "U" transducer through the arm supporting the front "U" transducer (and probably the top "W"). I noticed that the 4.5m ATI was facing more easterly, i.e. an angle more like 1 degree?
At 09:00 CDT soil samples were taken from the area north of the rad stand. A soil core was made and the top 0-6cm taken for a single sample. A soil pit was dug ~12cm deep. A ~ 500g sample of the top 0-6cm portion of the dressed edge was taken. Three soil moisture aliquots were made. Two 12 cm deep chunks of the surface soil were extracted. On the bench three rectangular prism clods were sawed from the chunk for soil moisture and bulk density determination. see #40
We've RTV'd the ati K-probe back together. I also did a laboratory (trailer) zero calibration on all 3 paths. It found biases of about 1 cm/s and path- lengths of about 14.6 cm for all paths. The boom is drooping a bit, just due to the weight. I've done as much as I can with the yoke - there is a bit of play in the square part of the yoke. We could try shimming. For the moment, I've just left the droop in, assuming that it can be removed later by tilt.sonic. We still need to shoot the new boom angle. I wouldn't expect it to have changed much.
At 16:30ish we cleaned the window of the Mesonet Krypton hyrgrometer using a cotton swab and distilled water. The window was also dried using a swab. There was small black chips on the cleaning swab. The previous voltage was approx. 35 mV...we will watch it to see how it varies.
We installed the replacement U2 transducer in the ati K-probe and have had it running at 1m on the UW tower for about an hour. We'll continue to run it for a while to decide if it is working well enough to mount at 9m. When we do, we will have to: 1. zero it 2. feed a bit more cable up the tower 3. shoot the boom angle.
The T/RH at 1.5m was dead again this morning, having died at ~06:05 UTC. I decided to swap the HC11 boards with the spare we have. Of course, it also was necessary to swap the coefficients. Before the swap, I saved the coefficients as: $ASTER/projects/OASIS98/doc/trh1.doc & trh3.doc. Then, I reprogramed TRH003 with the coefficients from TRH001 (using COFL). NOTE: I DID NOT CHANGE THE SERIAL NUMBERS, SO THE SERIAL NUMBERS ARE OF THE HC11 AND NOT THE SENSOR. I loaded sensor #1's coefficients into CPU #3 I pulled the old sensor with CPU #1 from the tower. I swapped brains in the trailer. I reinstalled the sensor with CPU #3. I loaded sensor #3's coefficients back into CPU #1 (the spare), just to be safe. Thus, CPU #3 should be debugged in the lab, if possible.
Sunday, July 12 Wx: Standard OASIS98 day. Cloudless this morning, Looks like it will get hot again. Base: Steve has made a color-coded idraw of the dat objects. He talked to Gordon and discussed Neechee(or something like that). A scheme to apportion the soil Ts, G, and Ms was devised. I will run the soil energy budgets today and see whether the scheme is good. T/RH: Again, TRH at 1.5m was dead this morning. It will be replaced with the spare. T and RH profiles look good P: ok. Wind: ok. Spd profile looks good Radiation: ok. (T,G,M)soil: ok. Gsoil.1 now fitting in with the rest. Gsoil, 1, 2, 3 scatter, day-time max +_ 15Wm-2, night-time min +_5 Wm-2 Tsoil, 3 is 45-60 min ahead of 1 and 2 in its maxima and minima. Steve and Gordon have devized a scheme to apportion Ts, Gs and Ms. Msoil1 data for plotting interupted after the scheme started. Doing another intercomparison between corer and digging Sonics: Still waiting for UPS to deliver the new transducer. Krypton: ok! . fastT: ok. bph: ok. mr.bph variance agrees pretty well with h2o variance! Rain: No rain Comments:
At 09:00 both a soil core sample and a soil trench sample were taken in the area north of the roped-off radiometer stand. Soil core, 0-6cm, fresh wt = 184.0g Soil trench, 0-6cm, fresh wts CI = 19.3g CII = 21.2g CIII = 22.0g At 10:00 the Trime probes were inserted Readings: Moisture Vol% 6.7% 6.8% 6.9% TDR level 56.0 56.0 56.0 Left probes in the ground to see if the readings will change with time, At 10:35 Moisture Vol% 7.2% 7.1% 7.1% TDR level 54 55 55 At 11:00 Moisture Vol% 7.1% 7.1% 7.1% TDR level 54.0 55 55 The difference between the fist set of readings and all subsequent readings may also have been due to the heating of the Trime electronics, as the sun caused the box to heat considerably.
Sunday, July 12 [We're planning to only work this morning, since the OU people also won't be here today (Jerry and Chris were here yesterday). We had fun last night finding flaws in "Armagedon" (sp?).] Wx: Sct Cu now - could be another warm one. Winds still southerly yesterday, but generally pretty light. Currently they are from the NE. Base: I've just bkfiles_kill'ed, so we're now down to 21%. I also took several pictures with the digital camera yesterday of the sensors and created a skeletal WWW site on stout with them. I've made a color-coded idraw of the dat objects. We still have some configurations to play with - I'm waiting to talk to Gordon to discuss philosophy. T/RH: TRH at 1.5m was dead this morning. See previous logbook entry. We're not reading RH from OKMN. Perhaps we should. P: ok. Wind: ok. Why aren't the OU data plotted when asking for "Spd", but are when asking for "Spd.2m"? Radiation: ok. There was a full moon 2 nights ago, but I don't think we can measure it! (Tony says it is 10^-6 of sunlight, or 1 mW/m2.) (T,G,M)soil: ok. Gsoil.1 now fits in with the rest. Tsoil.1 NCAR agrees with Tsoil.1 OU and Tsoil.2 NCAR agrees with Tsoil.2 OU, but not with Tsoil.1. This has to be coincidence, since the sites are not colocated. Sonics: UPS didn't deliver the new transducer for ati.9m because they needed a signature and didn't get one from the front desk!@$#! I guess we'll have to wait until Monday. ati.4.5m and csat.4.5m have worked pretty well, with only a few spikes appearing on cockpit. Statistics look reasonable when plotted as a time series - scatterplots may show differences. One of the UWs was sent to ATI to get an EPROM upgrade (I think). Hopefully, this will allow us to use it for a 20cm path. Krypton: ok! Suggested that the OK sensor to be cleaned, since h2o'h2o' looks terrible. Their voltage channel shows 30 V, which obviously is wrong. I could believe 30 mV, which is too small for normal operation. However, the fluxes don't look too bad. fastT: ok. bph: ok. mr.bph variance agrees pretty well with h2o variance! Rain: No rain Comments:
The TRH at 1.5m died at 07:54 GMT last night. We have no idea why. rserial didn't respond to wake it up; however the fan was running when we went out to check on it (therefore it had power). Cycling power brought it back to life. (What good is COP if it allows this to happen?)
Saturday, July 11 Wx:Yesterday was hot, similar to the weather for the whole of the week. In the afternoon grey cumulus developed but there was no rain. The remnats of the soil dampness was gone. This morning is partially overcast. Base: Yesterday cocklebur was down when we arrived. It was brought up but low-level problems persisted, slow response, difficulty in finding data. Steve spent a portion of the afternoon re-ordering the access to soil parameters. He has cleaned up the system, killing processes. Sent all marigold and some ragwort files to NCAR. T/RH: Profiles look OK. Note: after the rain the gradients of RH increased P: See logbook # 103. Wind: Profiles of Dir and Spd look OK. . Radiation: ok The Rsw negative fluxes of ~ 3 - 5 Wm-2 during the night-time are, apparently, a real instrumentation response. The sensor exports a small energy flux throughout the night. See logbook # 85. (T,G,M)soil: Gsoil.1 is an outlier with too small a magnitude, but the difference is closing. . Sonics: 9m ATI was been brought into trailer. One of the u transducers was temperature sensitive, generating a weak signal. It was removed and ATI will FEDEX a replacement. A method for the re-stringing the transducer coax was developed. Hopefully we should be able to make a field replacement of the transducer. The UWs are to be sent to ATI Krypton: ok! Asked for the OK sensor to be cleaned fastT: ok. bph: ok. Rain: No rain Comments: ADAM temperatures top out at ~ 35 degreeC
We spent today figuring out how to repair the 9m ATI. Herb is sending out a new transducer tomorrow, and we'll try to replace it in the array. We also worked a bit on software, trying to get Gsfc running, along with some nuisance software issues resolved (mostly failed). check_aster has been normal, except for 2 nc_server processes (we killed one). cockpits have been okay. Otherwise, we didn't do any QC checks today. backup was done. I'll kill the files when I return tonight (we're now at 93%) to allow me to try to FTP them to Boulder. The data rate was 14 K/s earlier today, which was a bit slow for this much data.
The major thunderstorm at 03:30 dumped heavy rain, leaving puddles on the dirt road to the site. For the next three days test pits were dug at ~ 09:30 8 July: top 2.5cm of soil noticeably dark, below still dry. 9 July: top 3.5cm of soil dark 10 July: soil apparently uniform to inspection Gravimetric soil moisture meaurements were made on 7 July, prior to the rain, and on 8 July, after the rain measurements were made of 0-3cm and 3-6cm. see #40
Tom has e-mailed me the response for spatial averaging for one path from Kaimal's 1968 paper, and I have the data for my model of the spatial averaging for the UW. I have added a plot of these to this entry. Generally, the response with 3 paths at 60 degrees from a sonic with a 10 cm path (the CSAT) to W is about the same as a single vertical path with a 15 cm pathlength. Thus, spatial averaging does not explain the differences we are seeing between statistics from the CSAT and ATI.
To allow us to check why the 9m ATI is spiking on U, I've climbed the tower and taken the sonic head down. (The Krypton is still mounted to the boom at 9m). Note that I had to disconnect the yoke in order to give the cables enough play to allow me to pull the head out of the boom, so TILT CORRECTIONS WILL NEED TO BREAK THE FIT AT THIS TIME. The head is now reconnected and running on channel 201, but is physically at 1m on the UW test tower (which has no other sonic running on it yet). Already the U channel appears to be spiking, so this is a good test configuration. We're going to lunch now. Assuming that it is still bad after lunch, I'll try looking at the signals on the scope. ---------------------------------- 5:30 PM It appears that the u signal is weak, I think going from u2 -> u1 (the 4th of 6 transmissions). I'm going to try to get another transducer sent here as a replacement. Note that this sonic has been off and on all day as I fiddled with it - all at 1m on the UW tower. I've taken it off completely for the night, since it is not weather tight. I'll put it back up to 9m tomorrow.
I've been playing with the temperature error in our pressure data. I get a reasonable fit with: pNCAR = pOU - 0.2 (T1.5-27) The fit has somewhat less scatter if I include a 10-20 min delay between the pressures and temperature.
When aster's display is locked up, the following comands from Gordon will revive it, without having to reboot: (on an aster window on cocklebur) ps -ef | grep Xsun [get pid] su [enter password] kill -9 [pid] (must log in again to aster)
Thursday, July 9 [Sorry for missing a few days - the need to do a daily status got lost in the transition from Tom to me. See other entries for significant events.] Wx: Broken Cu, winds light and westerly (at the moment) Yesterday's winds also were quite variable. The ground also is moister (and slightly greener) following the rain early yesterday morning. Base: ok. The adams rebooted in the electrical storm 2 nights ago, but came up by themselves. The RF network modem was swapped out by Stan 2 days ago since it was too powerful (500, rather than 100 mW). It then died during the electrical storm, but came back after cycling power and waiting about 1/2 hour. T/RH: Profiles still are a bit strange. See logbook #94 for some details on playing with RH and T biases. P: Still see heating effect. We should try radiation shielding today. Wind: Speeds ok. Flipping the vane at 2m 2 days ago helped make the directions consistent. Flipping the vane at 6.5m appears not to have helped. Radiation: ok. Tony and Tom have been looking into Rsw negative fluxes of ~ 3 - 5 Wm-2 during the night-time. (T,G,M)soil: Tony dug up and replanted T probe and G plate site #1 2 days ago, since Gsoil.1 was an outlier (too large magnitude). Fortunately, it rained about 9 hours later to help "set" these sensors. However, Gsoil.1 is now an outlier with too small a magnitude! Tony will keep on looking at this. Sonics: 9m ATI U is spiking heavily during the heat of the day and improves at night. V & W are behaving well. Cooling the boom (and thus electronics) with a wet towel 2 days ago may have helped somewhat, but didn't eliminate the problem. We've also seen spikes on 4.5m ATI, though not as bad. The OU CSAT has given a few spikes, but not as many as the ATIs. The UWs are now built, but not working. (Both were operated for a few minutes yesterday giving -99.99.) I'm trying to isolate this problem. Krypton: ok! (even though it rained 2 days ago) I cleaned both of ours 2 days ago, which changed the offset by about 10 g/m3, but the gains appear to be the same. Variance of 9m is lower than 4.5m (as expected) and also larger after the rain (as expected). Variance from the OU sensor is too large - I wonder if this is noise? (And/or if it should be cleaned?) fastT: ok! (worked through the rain) Variance from ours is still less than from the OU CSI thermocouple. bph: ok. Rain: ok. There were 2 events in yesterday morning's rain. The first, both OU and NCAR show about 6 mm of rain. The second OU shows 89 and NCAR 64 mm. There also is a time shift (NCAR late by 5min), which apparently has been known. Comments:
See ASTER/delany/soilparameters.ps for table of soil parameters for previous deployments. Deployment mindens vmf vof blkdens Cs ---------------------------------------------------------------------------- g cm-3 ~ ~ g.cm-3 MJ.m-3. degreeK-1 ------------------------------------------------------------------------------ SJVAQS 1.04 + 0.03 + 6.12*gravmoist STORMFEST92 est 2.65 0.55 0.01 1.45 1.05 + 0.03 + 6.09*gravmoist STORMFEST92 meas 2.17 0.47 0.01 1.38 0.89 + 0.03 + 5.80*gravmoist FOOTPRINT92 2.22 0.65 0.01 1.43 1.24 + 0.03 + 6.01*gravmoist CACHE94 FLATLAND96 CASES98 OASIS98 est 2.5 0.64 0.01 1.60 1.22 + 0.03 + 6.7*gravmoist blkdens = dry soil mass / dry soil volume g.cm-3 gravmoist = (wet soil mass - dry soil mass)/ dry soil mass g.g-1 vmf = blkdens / mindens g.cm-3. g-1.cm3 vwf = gravmoist x blkdens g.cm-3. g-1.cm3 Cm = 0.46 cal.cm-3.degreeK-1 = 1.9 MJ.m-3.degreeK-1 Co = 0.60 cal.cm-3.degreeK-1 = 2.5 MJ.m-3.degreeK-1 Cw = 1.00 cal.cm-3.degreeK-1 = 4.2 MJ.m-3.degreeK-1 An approximate calculation of the soil volumetric heat capacity using previous data Cs = Cm x vmf + Co x vof + Cw x vwf MJ.m-3.degreeK-1 = (1.9 x vmf) + (2.5 x vof) + (4.2 x blkdens x gravmoist) MJ.m-3.degreeK-1 = (1.9 x 0.64)+ (2.5 x 0.01)+ (4.2 x 1.6 x gravmoist) MJ.m-3.degreeK-1 = (1.9 x 0.64)+ (2.5 x 0.01)+ (6.7 x 0.1) MJ.m-3.degreeK-1 = 1.22 + 0.03 + 0.67 MJ.m-3.degreeK-1 = 1.92 MJ.m-3.degreek-1 Crude calculation of the magnitude of the storage term, S Typical heating/cooling is 15 degree in 12 hr (= 50000s) If a simple linear heating and cooling at the surface occured, then: Ht 1m2 to 5cm by 1degreeK in 1s for Cs=1.9 MJ.m-3.degreeK-1 0.05m3, 1degreeK, 1s, 1.9 MJ m-3.degreeK-1; 0.095 MJ.s.m-2 95000 J.s.m-2 Ht 1m2 to 5cm by 1 degreeK.in 1000s ....................... ; 95 J.s.m-2 Ht 1m2 to 5cm by 1 degreeK in 50 x 1000s ................. ; 1.9 J.s.m-2 Ht 1m2 to 5cm by 15 degreeK in 50 x 1000s ................. ; 27.5 J.s.m-2 ............................................................; 27.5 W.m-2 That is, to a simple approximation, if the 5cm depth of soil is taken to be heated uniformly during the day, and cooled uniformly during the night, the storage term corresponds to a energy influx/outflux of ~ +_30 W.m-2
At 10:00 7 July a soil core was taken north of the roped-off area Fresh wt of top 6cm = 173.9g Placed in oven for two day bake. During the night, at ~03:00, 8 July, it rained. At 08:30 the morning of 8 July a test hole was dug. The moisture had penetrated 2-3cm. Below was still dry. At 09:00 8 July a soil core was taken north of the roped-off area. Fresh wt of 0 - 3cm = 83.3g Fresh wt of 3 - 6cm = 88.6g Placed in oven for two day bake. At 09:30 a Trime measurement was made. Moisture = 10.7 %, TDR level = 46.0 Note only the top few cm are moist.
There was a thunderstorm about 3:30 last night (it woke us up in the motel! There are some puddles around the site. The OU network went down, so we are unable to look at OU data. Stan is working on it. The ADAMS apparently rebooted themselves during the storm - probably due to lightning. I didn't know they would do that! All sensors appeared to have survived: 1. NCAR Fast t works and shows a 5 degree drop, along with the slow Ts. 2. NCAR kryptons got wet, but dried in 1-2 hours. Perhaps their offset (difference from hygrothermometers) has changed by 0.5 g/m3). [Note that their offset is now negative, which may indicate that we are using the "scaled" calibration.] 3. Soil sensors record the moistening and increased cold flux into the soil as expected. The soil Ts show a cold pulse during the rain, and then settling back to the general nighttime cooling trend. All this is normal. Tony is very glad that he [had the foresight to] reinstalled the sensors at site #1 just before this wetting event. Also note that this site did not record the most moistening, so he didn't disturb the soil too much.
Examination of Gsoil for the past two week's data indicated that the NCAR1 Gsoil values were markedly out of line with all the other G's. To a lesser extent Tsoil T was also somewhat different. At 16:15 CDT I dug out the two probes and reinstalled them. I did not disturb the Msoil probe, although its output too was somewhat out of line with the other moisture probes.
Since flipping the 2m vane worked so well, I've just flipped the 6.5m prop also.
In an attempt to figure out why the 9m ati is spiking, I wrapped the boom with a wet towel about 1400 CDT. (We hoped that the electronics would be cooled.) This did not affect the spiking, but probably disturbed the krypton humidity measurement. I'll remove it in another 15 min. or so. Towel was removed about 15:05. It was still damp. I also used a finger to wipe a bit of dust off of both U transducers. I doubt that any of this made any difference.
I've just played with the last 3 days of data and find that the ordering of the RH profiles is improved if 0.6% is added to RH.4.5m and 0.1% is subtracted from RH.6.5m and 0.2 is added to RH.1.5m. Also, the T profile is slightly better by subtracting 0.04C from T.6.5m.
A panorama of 8 photos was taken during the krypton cleaning climb mentioned in the previous logbook message. I'll try to download these to a just-to-be-created WWW page on OASIS.
Steve cleaned the NCAR krypton hygrometer windows with distilled water around 10:15 CDT. This changed the voltages from 0.02 to 0.15 for ch 100 and from 0.1 to 0.7 for ch 101, which isn't a huge change, but somewhat better.
On Sunday, 5 July a block of soil was dug up from the area immediately to the north of the roped-off area around the radiation stand. It was noted that the top several cm were more friable than the deeper soil. In the trailer the block was whittled down to give roughly rectangular prisms. One was formed from the top 3 cm and the other from the top 6 cm. The blocks wereput in Al pans and baked for two days. On Tuesday, 7 July the blocks were removed from the oven and weighed. They were then impregnated with wax and their volumes determined by immersion in water in a graduated vessel. Top 3cm: Dry mass = 59.2g, Volume = 35cm3, Bulk density = 1.69 g cm-3 Top 6cm: Dry mass = 120.3g, Volume = 75cm3, Bulk density = 1.60 g cm-3
I just flipped the vane on the 2m prop (the RM Young lettering is now upside down) to test if the 2 degree difference in wind direction is due to some asymmetry in the vane. I could imagine that the vane was slightly bent (Ioff to the left, when viewed upside down from the hub). We'll look at today's data to see if there was an effect. Tom points out that the 1m could be bent instead, so we can try it tomorrow.
Steve calculated the sonic tilt angles yesterday, using fun.sonic.tilt.dat. We used three days of data beginning June 29 16:30 CDT. Sonic offset pitch roll b1 b2 b3 lean phase cm/s deg deg deg deg --------------------------------------------------------------------- ATIK 4.5m -1 0.4 0.1 -0.012 0.006 -0.001 0.36 170 CSAT 4.5m 3 0.4 0.2 0.029 0.008 -0.003 0.49 157 ATIK 9m -1 -0.4 0.6 -0.015 -0.008 -0.010 0.73 54 These fits included two groups of data, one for wind from the east and a second for wind from the south. We applied this to two sets of data and found that the changes in u* andwere on the order of 1-2% and that the differences between the two 4.5m sonics were less than ~1%.
There is a discrepancy between the responses of the uplooking NCAR lw radiometer and the uplooking OKMN lw radiometer. This is well illustrared on Jul 3, a clear, cloud-free day. The Rlw.in plot shows an earlier and higher peak for the OKMN than for the NCAR. Note that the Rlw.out plots show agreement between OKMN and NCAR. The Tdome and Tcase plots showed that the OKMN were 1-2 degreeC warmer than NCAR, but no structure which could lead, in compensation correction, or dome/case correction to the structural difference showed in Rlw.in.Note that the difference of 1-2 degreeC is significant. The Rpile.in plot shows the strong feature.Several aspects were considered: - Ventilation: the OKMN is ventilated differently than the NCAR. However the dome and case temperatures plots do not show the strong feature. - Level: to account for the phase shift a tilt of ~11 degrees would be needed - Photodegradation: the Si vacuum deposited coating inside the dome is susceptable to uv degradation. This could allow a non- uniform illumination of the photopile. What history does this radiometer have?
At 09:00 CST a soil core was taken and a Trime measurement made. The data is in Logbook entries 40 and 41
Sunday, July 5 Wx: Scattered cumulus, wind from the south again Base: ok T/RH: Replaced 6.5m hygrothermometer with new unit from Boulder; T fits into profile well, RH looks questionable at night when RH close to 85%. P: ok Wind: ok Radiation: ok (T,G,M)soil: ok Sonics: ok Krypton: ok fastT: ok bph: ok Rain: ok, I guess Comments:
It was noted that immediatedly after sunset the response of the incoming and the outgoing short wave Eppley radiometers indicated negative short wave radiation fluxes. To test whether this was an offset due to the Campbell electronics, the input from the two radiometers were sucessively shorted, with a jumper between pin 1 and pin 2. In each case to apparent output decreased to +_ 0.078 Wm-2 This value of ~ +_ 0.1 Wm-2 is the data system uncertainty. It is surmised that the indicated negative radiation flux is due to thermal effects within the Eppley radiometers. The inside junction of the thermopile views the warm inside of the radiometer case while the other junction views the inside of the dome. The thermopile is sensitive to long wave radiation and so responds to the flux of long wave radiation from the warm interior of the sensor to the cooler dome. The artifact is most severe for the first hour after sunset when it corresponds to ~ 5 Wm-2. Then,throughout the rest of the night, the artifact maintains a value of ~ 2-3 Wm-2. As the artifact is common to both upward facing and downward facing radiometers, the effect should almost cancel when the net radiation flux is calculated. NOTE The K&Z short wave radiometers responds in a similar fashion We suspect that the OKMN short wave radiometer data is forced, by software, to yield 0.00 Wm -2, whenever its output goes negative.
Comparisons indicated that the 6.5m TRH was generating questionable T At 10:45 CDT the inplace TRH was removed from the tower and the new TRH brought from NCAR on 3 July was installed. This sensor did not report RH. It was removed and on inspection it was discovered to have a bad board connector. This was fixed and the new TRH reistalled on the tower at 6.5m at 11:25 CDT At 13:35 CDT changed s/n to 006
Saturday, July 4 Wx: Scattered cumulus, wind from the south again Base: ok T/RH: 6.5m T still questionable, replacing with new unit today P: ok Wind: ok Radiation: ok (T,G,M)soil: ok Sonics: ok Krypton: ok fastT: ok bph: ok Rain: ok, I guess Comments:
Raw data files, up to 7/3/98, have been ftped to stout.
Tony brought some new fans for the 4 Comp rad system. The Rsw.out now has a fan.
I had been covaring the CSAT data to compare it to the statistics calculated by OKMN. These statistics were identical with the exception of a small offset in tc (tc' statistics were identical), likely caused by some small difference in the computation of tc from the speed of sound. Now I have deleted the csat from the covar file again in order to avoid needlessly duplicating these statistics in the NetCDF file.
Friday, July 3 Wx: A few high clouds, wind from the south again Base: ok T/RH: 6.5m T still questionable P: ok Wind: ok Radiation: ok; now including CNR1a, NRLite.3 in NetCDF file (T,G,M)soil: ok Sonics: ok; ingesting OKMN CSAT through marigold Krypton: ok fastT: ok bph: ok Rain: ok, I guess Comments:
From 8:30 to 10:00 (local), the Campbell sonic was running in an unprompted mode with sync characters. This was a test to see if ASTER would handle this mode and to see if it effected the SDM communication to the OK logger. This mode of operation had no effect on SDM. Refer to document in $ASTER/projects/OASIS98/doc for more information on how to add the sync characters to the sonic output message.
The Campbell sonic is being sampled on channel 206 of marigold. Changes were made to prep.config, channel_config, and covar.config. The sonic is operating in a prompted mode; ie, marigold is sending a "W" to the instrument to get data. The data are also being sampled by OU via the SDM communication. At this time we do not know if we are causing any problems.
Thursday, July 2 Wx: High clouds, wind from the east Base: ok T/RH: 6.5m T still questionable P: ok Wind: ok Radiation: ok (T,G,M)soil: ok Sonics: ok Krypton: ok fastT: ok bph: ok Rain: ok, I guess Comments:
If you make changes to okmn.q and want to regenerate the data, do: cd results/OKMN okmn_process 980624.ast
The NCAR Kryptons have been using the scaled, full-range calibrations and for the OKMN Krypton I used the clean, wet-range calibration. I will change both to use the scaled, wet-range calibration. Using Campbell calibrations dated 22-May-98, I changed the files cal_files/kryton1101 and cal_files/krypton1133: Changed NCAR s/n 1101 to Kw = -0.137, Intercept = 2663, X = 1.011 Changed NCAR s/n 1133 to Kw = -0.137, Intercept = 2431, X = 1.434 Using the Campbell calibration dated 8-97, I changed the file OASIS98/okmn.q Changed OKMN s/n 1090 to Kw = -0.142, Intercept = 2271, X = 1.012 Restarted covars
Data from 6/17 to 6/29 has been backed up on tape. These files have also been transferred to stout, directory "/net/aster/projects/OASIS98/raw_data/all", via ftp.
It appears from the data that OKMN and NCAR have opposite sign conventions for Gsoil, so I changed the sign of the OKMN data going into the NetCDF file.
Because I added Tsoil.(1,2) and Gsoil.(1,2) to okmn.q yesterday, I changed covar.config to include these as common variables between NCAR and OKMN. Restarted covars.
Wednesday, July 1 Wx: Cloudy, wind from the north Base: ok; ingesting OKMN data T/RH: 6.5m T still questionable P: ok Wind: ok Radiation: ok; added Tcase.out, Tdome.out to okmn.q yesterday (T,G,M)soil: ok; No from OKMN; added Tsoil.(1,2), Gsoil.(1,2) to okmn.q yesterday Sonics: ok; wind elevation angles indicate level to 0.3 - 0.5 degree Krypton: ok; added calibration information to okmn.q yesterday fastT: ok; OKMN sensor added yesterday bph: ok Rain: ok Comments:
Calculated elevation angles of the wind for the period June 29, 16:35 CDT to July 1 8:35 CDT. During this period u ranged from -4 to +8 m/s and v from -5 to +6 m/s. sonic atan(w/u) atan(w/v) 4.5m NCAR 0.4 deg -0.2 deg 4.5m OKMN 0.7 deg -0.5 deg 9m NCAR -0.3 deg -0.3 deg Mean offsets in w were on the order of a few cm/s
I edited sfun/OASIS98/okmn.q to add several parameters: Tcase.out and Tdome.out were missing from the following line in write.nrad.com: for (v in c("Rsw.in","Rsw.out","Tcase.in","Tdome.in", "Tcase.out","Tdome.out","Rpile.in","Rpile.out","Rnet")) { I changed Tsoil.j and Gsoil.j to be variables 25-28 in NORM: "Gsoil.1", "W/m^2", # X 5cm heat flux plate "Gsoil.2", "W/m^2", # X 5cm heat flux plate "Tsoil.1", "degC", # X 5cm to surf integ. soil T "Tsoil.2", "degC", # X 5cm to surf integ. soil T and added them to write.norm: vn <- dimnames(x)[[2]] for (v in c("Tsoil.1","Tsoil.2","Gsoil.1","Gsoil.2")) if (any(vn==v)) { y <- x[,v] attr(y,"stations") <- 2 write.surf(iod,y) } # y <- x[,"Tsoil.sod.5cm"] # dimnames(y)[[2]] <- "Tsoil.1" # attr(y,"stations") <- 2 # write.surf(iod,y)
While backing up files to tape, we ran out of disk space! The archive tasks shutdown at 14:44 (local). The tape backup shows only one large file written to tape. To play it safe, we decided to ftp the files to stout at directory /net/aster/projects/OASIS98/raw_data/all. The files were transferred as binary.
The Rlw.out fan failed. At the moment, we do not have a spare. The Rsw.out fan was moved over to the Rlw.out location.
Steve shot the orientation of the OKMN CSAT sonic: nominal N/S path 357d 07m 50s nominal SW/NE path 057d 45m 55s nominal SE/NW path 296d 43m 55s
OKMN is using Krypton hygrometer s/n 1090. The most recent calibration from Campbell is from 8/97: Window -Kw Dry R Wet R INT PATH O2 DEN ------------------------------------------------------ SC24HR 0.144 0.148 0.142 2271 1.012 269 CLEAN 0.140 0.139 0.141 3449 1.012 269 I entered Kw, logV0, and X into okmn.q as follows: write.nbrd <- function(x,lnV0=log(3449),Kw=-0.141,X=1.012)
17:30 UTC: Straightened 2 m cup anemometer
18:45 UTC: Installed FW05 fine wire thermocouple
18:00 UTC: Installed 2nd ground heat flux plate and PRTD
19:04 UTC: Leveled the Eppley SW incoming and LW incoming.
The cup anemometer at 2m on the mesonet tower is tilted a few degrees to the south.
Covars were restarted at 11:07 (local) to handle the new changes for the ATI level sensors. Refer to logbook entry 56.
Software changes have been made to sonic_atik.c and the "did" of the level sensors. "sonic_atik.c" was changed to handle the new level sensors on the ATIs. According to ATI, the transfer function is: x degrees = counts * 1.5 / 1024 "sonic_atik.c" was changed to use this as the default gain setting. If you need to change this to a different value it can be done in "prep.config". The function "sonic_atik.c" can accept 5 input parameters. Parameter 5 is used for this gain term. NOTE: you must provide a value for parameter 4. example: c=sonic_atik("ati.9m.OASIS98,1e-5,2.5,"flag",0,.1) where .1 is the gain value The "DID" names for the level sensors were changed from "alev" and "blev" to "lev.u" and "lev.v", respectfully. This change was made in prep.config and covar.config.
Tuesday, June 30 Wx: Cloudy, steady wind from the south(!) Base: ok; ingesting OKMN data T/RH: 6.5m T still questionable; 1.5m failed again this morning around 6:30 CDT P: ok Wind: ok Radiation: ok; No Tcase.out, Tdome.out from OKMN (T,G,M)soil: ok; No Gsoil or Msoil from OKMN Sonics: ok Krypton: ok; No OKMN data (need calibration factors) fastT: ok; No OKMN data bph: ok Rain: ok Comments:
The 1.5m HYGRO died last night. It appears to be the same problem with the chip socket for the HC11. I did a little more work on the contact between pin 21 and the socket connector. The sensor was deployed at 9:20 local.
From 14:00 to 16:30 (local) I was playing with the levels of the ATI. I started with the 9m. This required adjustmments on the chain links and turnbuckles on the south guywires. Once this was completed, the 4.5m was adjusted using some panduit ties, a radiator clamp, and some choice words! I talked to ATI about the calibration function for the sensors. It is different from the old units. Therefore the calibration routine for the sonics will need to be modified. The new transfer function is: degrees = counts * 1.5/1024 According to ATI the sensor range is +-4 degrees over a range of +-2048. However it is not that linear over the full range. They recommended using the smaller range. At this time, we are not sure their function is correct. Tom is doing some number crunching to try to confirm this.
Adusted level of net radiometer. The bubble was touching the edge of the bullseye and I rotated the radiometer to the east to center it.
From: "Scott J. Richardson" To: "'Gordon Maclean'" Subject: FW: sample of OU dataset Date: Wed, 24 Jun 1998 14:19:34 -0500 Gordon, Here is the information you need, I hope. David put together the list of variables in each table and that is at the end of the email. I ftp'ed a file using the aster account and it worked fine for me. I hope you find everything in order. Let me know if it is otherwise. Thanks. Scott. Dr. Scott J. Richardson University of Oklahoma Cooperative Institute for Mesoscale Meteorological Studies and Oklahoma Climatological Survey-OASIS Project 100 E. Boyd, Suite 1210 Norman, OK 73019 Phone: 405-325-2777 Fax: 405-325-1854 Web: http://scott.ou.edu -----Original Message----- From: D. Grimsley Sent: Wednesday, June 24, 1998 1:41 PM To: Scott Subject: Re: sample of OU dataset Scott, Please check and forward to Gordon. Dave Gordon, I think we finally have a handle on the data we will be sending to the ASTER facility. There are 4 stations near the ASTER setup from which data needs to be ingested. These stations and data table names are: Station Data Table NORM AST05F NBRD AST05D and AST05E (had to be split up due to record length) NCOM NET05A NRAD NRAD5LA The current plan is to write these tables to one file every 15 minutes and make that file available to the ASTER facility via ftp. The file name should be of the format: YYMMDDhhmm.ast This file should be available at approximately 8, 23, 38, and 53 minutes after the hour and will contain data from the previous 15 minutes. Sample files are available via FTP from: 129.15.195.51 Username: aster Password: Aster (case sensitive) Regards, David Grimsley Oklahoma Climate Survey The data format of different data table is as follows: ************************* DATA SET FROM NORM (STANDARD MESONET DATA) TABLE NAME: AST05F 1. STID (NORM) 2. TABLE NAME (AST05F) 3. DATE / TIME 4. RECORD # 5. 1.5m HMP35C Relative Humidity 6. 1.5m HMP35C Air Temperature 7. 1.5m Fast Air Temperature 8. 9m Fast Air Temperature 9. Rain (Accumulation since 0Z in mm) 10. Atmospheric Pressure 11. Licor 200SZ Solar radiation 12. 10m Average Wind Speed 13. 10m Average Vector Wind Direction 14. 10m Average Vector Wind Speed 15. 10m Wind Speed Standard Deviation 16. 10m Wind Direction Standard Deviation 17. 10m Maximum Wind Speed (3s Sample) 18. 2m Wind Speed 19. 9m Wind Speed 20. 5cm Soil Temperature Under Sod 21. 10cm Soil Temperature Under Sod 22. 30cm Soil Temperature Under Sod 23. 5cm Soil Temperature Under Bare 24. 10cm Soil Temperature Under Bare 25. 5cm Soil Heat Flux Plate #1 26. 5cm Soil Heat Flux Plate #2 (NOT YET INSTALLED) 27. 5cm to Surface Integrated Soil Temperature #1 28. 5cm to Surface Integrated Soil Temperature #2 (NOT YET INSTALLED) 29. 5cm 229L Initial Temperature 30. 5cm Final Temperature (After Heating) 31. 25cm 229L Initial Temperature 32. 25cm Final Temperature (After Heating) 33. 60cm 229L Initial Temperature 34. 60cm Final Temperature (After Heating) 35. 75cm 229L Initial Temperature 36. 75cm Final Temperature (After Heating) 37. Thermocouple Reference Temperature 38. 1.5m Air Sample RH #1 (NOT INSTALLED) 39. 1.5m Air Sample RH #2 (NOT INSTALLED) 40. 1.5m Air Sample Temperature #1 (NOT INSTALLED) 41. 1.5m Air Sample Temperature #2 (NOT INSTALLED) 42. 9m Air Sample RH #1 (NOT INSTALLED) 43. 9m Air Sample RH #2 (NOT INSTALLED) 44. 9m Air Sample Temperature #1 (NOT INSTALLED) 45. 9m Air Sample Temperature #2 (NOT INSTALLED) ************************* DATA SET FROM NBRD (SONIC ANEMOMETER, KRYPTON HYGROMETER, FINE WIRE THERMOCOUPLE) TABLE NAME: AST05D 1. STID (NBRD) 2. TABLE NAME (AST05D) 3. DATE / TIME 4. RECORD # 5. Latent Heat Flux 6. Sonic Sensible Heat Flux 7. Sensible Flux 8. Friction Velocity 9. Momentum Flux 10. Average Z-Axis Wind Speed 11. Average X-Axis Wind Speed 12. Average Y-Axis Wind Speed 13. Average of Natural Log of the Krypton Hygrometer 14. Average Sonic Temperature 15. Average Fine Wire Thermocouple Temperature 16. Variance of Wind (Z-Axis) 17. Variance of Wind (X-Axis) 18. Variance of Wind (Y-Axis) 19. Variance of Natural Log of the Krypton Hygrometer 20. Variance of the Sonic Temperature 21. Variance of the Fine Wire Thermocouple Temperature 22. Covariance of Z-Axis Wind with X-Axis Wind 23. Covariance of Z-Axis Wind with Y-Axis Wind 24. Covariance of Z-Axis Wind with Natural Log of Krypton Hygrometer 25. Covariance of Z-Axis with Sonic Temperature 26. Covariance of Z-Axis with Fine Wire Thermocouple TABLE NAME: AST05E 1. STID (NBRD) 2. TABLE NAME (AST05E) 3. DATE / TIME 4. RECORD # 5. Covariance of X-Axis Wind with Y-Axis Wind 6. Covariance of X-Axis Wind with Natural Log of Krypton Hygrometer 7. Covariance of X-axis Wind with Sonic Temperature 8. Covariance of X-Axis Wind with Fine Wire Thermocouple 9. Covariance of Y-Axis Wind with Natural Log of Krypton Hygrometer 10. Covariance of Y-Axis Wind with Sonic Temperature 11. Covariance of Y-Axis Wind with Fine Wire Thermocouple 12. Covariance of Natural Log of Krypton Hygrometer with Sonic Temperature 13. Covariance of Natural Log of Krypton Hygrometer with Fine Wire Thermocouple 14. Average Fine Wire Thermocouple Reference Temperature 15. Constant that is Subtracted from Each Instantaneous Krypton Hygrometer 16. Constant that is Subtracted from Each Instantaneous Sonic Temperature 17. Constant that is Subtracted from Each Instantaneous Fine Wire Themo Temp 18. Average of Krypton Hygrometer Voltage 19. Standard Deviation of Krypton Hygrometer Voltage 20. # of Samples Used to Compute Covariances 21. # of Samples that Sonic Anemometer had no data 22. # of Samples that Sonic Anemometer Set the Delta Temp Warning Flag 23. # of Samples that Sonic Anemometer Set the Tracking Warning Flag 24. # of Samples that Sonic Anemometer Set the Amplitude High Warning Flag 25. # of Samples that Sonic Anemometer Set the Amplitude Low Warning Flag 26. # of Samples that Sonic Anemometer was Acquiring Signal ************************* DATA SET FROM NRAD (EPPLEY PSPs, ETC) TABLE NAME: NRAD5LA 1. STID (NRAD) 2. TABLE NAME (NRAD5LA) 3. DATE / TIME 4. RECORD # 5. Incoming Ventilated Shortwave (EPPLEY PSP) 6. Reflected Shortwave (EPPLEY PSP) 7. Temperature-compensated Incoming Ventilated Longwave (EPPLEY PIR) 8. " Case Temperature 9. " Dome Temperature 10. " Battery Voltage 11. Temperature-compensated Reflected Longwave (EPPLEY PIR) 12. " Case Temperature 13. " Dome Temperature 14. " Battery Voltage 15. Ventilator and Heater Power Supply Voltage 16. Incoming Ventilated Longwave Thermopile (EPPLEY PIR) 17. Reflected Longwave Thermopile (EPPLEY PIR) 18. Kipp & Zonen CNR1 Incoming Shortwave 19. " Incoming Longwave (without temperature compensation) 20. " Incoming Longwave (with temperature compensation) 21. " Reflected Shortwave 22. " Reflected Longwave (without temperature compensation) 23. " Reflected Longwave (with temperature compensation) 24. " Body Temperature 25. " Net Radiation ************************* DATA SET FROM NCOM (Kipp & Zonen CNR1 and NRLites) TABLE NAME: NET05A 1. STID (NCOM) 2. TABLE NAME (NET05A) 3. DATE / TIME 4. RECORD # 5. East Wind Speed 6. West Wind Speed 7. Second CNR1 (NOT CURRENTLY INSTALLED) 8. " (7999 bogus data) 9. " (7999 bogus data) 10. " (ignore negative #) 11. " (ignore negative #) 12. " (ignore negative #) 13. " (ignore negative #) 14. Kipp & Zonen CNR1 Body Temperature 15. " Incoming Shortwave 16. " Reflected Shortwave 17. " Incoming Longwave (without temperature compensation) 18. " Incoming Longwave (with temperature compensation) 19. " Reflected Longwave (without temperature compensation) 20. " Reflected Longwave (with temperature compensation) 21. Second CNR1 Net Radiation (NOT CURRENTLY INSTALLED) 22. Kipp & Zonen CNR1 NET Radiation 23. Kipp & Zonen NRLite Net Radiation SN# 970076 24. " SN# 970314 25. REBS Net Radiation SN# Q96101 26. Station Battery Voltage 27. Kipp & Zonen NRLite Net Radiation SN# 970064 28. " SN# 970062 29. " SN# 970034 30. " SN# 970031 31. " SN# 970029
Let 'a' be the angle of the u axis above horizontal. Then u_r = u*cos(a) + w*sin(a) w_r = -u*sin(a) + w*cos(a) uw_r = (ww-uu)*sin(a)*cos(a) + uw*(cos(a)^2 - sin(a)^2) (u*_r)^2 = (u*)^2*[1 + (uu-ww)/(u*)^2*sin(a)], cos(a) ~ 1, sin(a)^2 ~ 0 From data, (uu-ww)/(u*)^2 has a value around +5, so a = 1 deg gives an error in u* of about 4%. Assuming w = 0, a = atan(-w_r/u_r) give an angle of 1.64 deg for the ATI sonic and an error in u* of about 7%. For the CSAT sonic, a = -0.63 deg, for a u* error of -3% and thus (u*_r).ATI = 1.1*(u*_r).CSAT The data show (u*_r).ATI = 1.14*(u*_r).CSAT wtc_r = -utc*sin(a) + wtc*cos(a) wtc_r = wtc*[1 - utc/wtc*sin(a)] From data, utc/wtc has a value around -2, so a = 1 deg give an error in w'tc' of about 3.5%. Thus the error in w'tc' for the ATI is about 6% and the error for the CSAT is about 2%, so that wtc_r.ATI = 1.08*wtc_r.CSAT the data show wtc_r.ATI = 1.13*wtc_r.CSAT
Plots of w versus u and v give the following for the three sonics: atan(w/u) w (m/s) atan(w/v) w (m/s) ATI 4.5m -1.64 deg 0.03 -0.70 deg -0.09 ATI 9m -1.29 deg 0.02 -0.15 deg 0.08 CSAT 4.5m 0.63 deg 0.04 -0.04 deg -0.08 We releveled the NCAR 4.5m sonic between 9:30 and 11:00 this morning, using a bubble level. The u axis is level, but the v axis is still high to the west. Steve checked the u axis with the theodolite, looking east along the boom, and it looks good. I looked at the bubble on the OKMN CSAT and it is right on center.
I shot the props again today. Below are the results. There is not much difference from the first time except for the 2m prop which we moved. The new angle for the 2m prop was entered into the eeprom at ~11:50 local. The 6.5m prop has a slight tilt. I believe this is due to the mounting of the yoke to the tower. We may try to change it. Prop angle 1m 177 42' 35" 2m 178 13' 10" 4.5m 176 55' 53" 6.5m 176 27' 35" 9m 178 55' 40"
We measured the heights of the 1.5m hygrothermometers and 2m props: NCAR before after T/RH 1.55m 1.50m prop 2.06m 1.98m OKMN 'fast' T 1.51m (center of beehive) cup 2.01m Adjusted the heights of the NCAR sensors as in 'after' above
Sunday, June 28 Wx: Clear, steady wind from the south(!) Base: ok; ingesting OKMN data T/RH: 6.5m T still questionable P: ok Wind: ok; winds have been southeasterly for most of the past 24 hours Radiation: ok; No Tcase.out, Tdome.out from OKMN (T,G,M)soil: ok; No Gsoil or Msoil from OKMN Sonics: ok Krypton: ok; No OKMN data (need calibration factors) fastT: ok; No OKMN data bph: ok Rain: ok Comments:
There is a difference in the ASTER prop directions. When looking at data over a long time period with 1 hour averaging, the 2m and 6.5m are about 2 degrees off compared to the 1m. While the 4.5m and 9m are about a degree off. The boom alignment was checked on the 1m and 2m. There was no changed when the vanes were re-aligned. The error may be due to the direction angle measurements. When shooting the angles, the 1m and 2m where shot without moving the tripod. The same conditions were used on the 4.5m and the 6.5m. We will try shooting the angles again in the next few days to see if this answers the question.
We are now ingesting OKMN data and I note the following comparisons: Temperature: 1.5m and 9m temperatures agree within better than 0.1 C at night, but NCAR temperatures are 0.1-0.2 C cooler during the day. The difference is smaller at 9m than at 1.5m, consistent with a wind-speed-dependent radiation error in the OKMN shield. As a consequence, T(9m) - T(1.5m) is greater (more positive) for NCAR than for OKMN, by 0.05-0.1 degC during the day and 0 to 0.05 degC at night. Winds: NCAR winds speeds are 10-20 cm/s higher than OKMN at both 2m and 9m. A 48-hour average, June 26 (1030 CDT) -28 (1030 CDT), gives NCAR OKMN NCAR-OKMN 9m 7.080 7.014 0.066 m/s 2m 5.468 5.440 0.028 m/s 9m-2m 1.612 1.574 0.038 m/s Pressure: There is a 1-2 mb difference between NCAR and OKMN which suggests a temperature contamination of one of the barometers. The error decreases as shadows from the prop and sonic towers pass across the NCAR barometer enclosure, indicating a temperature error in the NCAR barometer. Rsw.in: NCAR > OKMN during day by 10-20 W/m^2 OKMN = 0.985*NCAR + 2.3 W/m^2 Hysteresis in the xy plot suggests a leveling difference. NCAR ~ -3 W/m^2 at night; OKMN = 0 Rsw.out: NCAR < OKMN during day by 10-20 W/m^2 OKMN = 1.1*NCAR + 1.0 W/m^2 This difference may be affected by the albedo. It appears that the surface under the OKMN pyg is "brighter" than that under the NCAR. NCAR ~ -1 W/m^2 at night; OKMN = 0 Rlw.in: OKMN = 0.973*NCAR + 10.4 W/m^2 But the xy plot is noticeably non-linear, again with hysteresis suggesting a leveling difference. Rlw.out: No OKMN data; Tcase.out and Tdome.out missing Rnet: NCAR > OKMN during day by up to 25-30 W/m^2 NCAR < OKMN at night by about 10-15 W/m^2 Rnet.OKMN = 0.944*Rnet.NCAR + 8.74 W/m^2 Rnet.OKMN is REBS SN# Q96101 from NCOM Sonic: u.NCAR = 0.97*u.OKMN + 0.015 m/s v.NCAR = 0.93*v.OKMN + 0.72 m/s u'u'.NCAR = 0.91*u'u'.OKMN + 0.017 (m/s)^2 v'v'.NCAR = 0.93*v'v'.OKMN + 0.010 (m/s)^2 w'w'.NCAR = 1.10*w'w'.OKMN + 0.002 (m/s)^2 u'w'.NCAR = 1.38*u'w'.OKMN - 0.007 (m/s)^2 v'w'.NCAR = 0.64*v'w'.OKMN - 0.034 (m/s)^2 u*.NCAR = 1.14*u*.OKMN + 0.022 m/s tc'tc'.NCAR = 0.99*tc'tc'.OKMN - 0.002 (degC)^2 w'tc'.NCAR = 1.13*w'tc'.OKMN - 0.003 (degC)^2 June 29 Found that the ATIs were tilted by about a degree in one direction and the Campbells about a half degree in the other. This appears to explain about 2/3 of the differences in u* and w'tc'. See logbook entry #50. Note that tc'tc' is in good agreement, suggesting neglible (or canceling) errors due to covariance calculations or differences in high-frequency sampling.
Saturday, June 27 Wx: Clear, steady wind from the south(!) Base: ok; ingesting OKMN data T/RH: 6.5m T still questionable P: ok Wind: ok Radiation: ok; No Tcase.out, Tdome.out from OKMN (T,G,M)soil: ok; No Gsoil or Msoil from OKMN Sonics: ok Krypton: ok; No OKMN data (need calibration factors) fastT: ok; No OKMN data bph: ok Rain: ok
Friday, June 26 Wx: Clear, steady wind from the south, some clouds to the NW. Base: ok; no OKMN data yet, net went down late this morning. T: 6.5m still questionable RH: ok P: ok Props: ok Radiation: ok (T,G,M)soil: ok Sonics: ok Krypton: ok fastT: ok bph: ok Rain: ok
Below is a record of the Trime tests. date/time (CT) Trime (%) 6/26 14:45 9.6 5 Jul 09:30 11.0% TDR level = 37 8 Jul 09:30 10.7% TDR level = 46.0
This logbook entry will be used for soil core measurements All weights will be grams. NOTE: Try to make measurements as soon as possible after taking the sample and baking. Moisture will be absorbed by the soil if it has time to sit around in the trailer. conversion to Bulk Density: (dry wt) / (22.9 * x cm) x = depth of sample x = 6cm, vol = 137.4 cm^3 conversion to Gravimetric Fraction: (wet wt - dry wt)/ (dry wt) Corer (SS) date/time (CT) depth wet dry1 dry2 dry3 BD GF 6/26 11:30 4 cm 118.1 112.3 112.1 111.7 1.22 .06 6/26 11:45 6 cm 191.4 182.2 181.2 180.7 1.33 .06 Corer separated samples (TD) Date / Time Depth Fresh Dry Diff Grav fract 5 Jul 09:30 0-6cm (I) 25.6 24.6 1.0 0.041 (II) 20.7 19.9 0.8 0.042 0.040 (III) 24.3 23.4 0.9 0.038 Waxed clod (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 5 Jul 10:00 0-3 39 ~ 59.2 ~ ~ 1.50 3-6cm 86 ~ 120.3 ~ ~ 1.40 Corer total (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 7 Jul 10:00 0-6cm 137cm3 173.9 168.7 5.2 0.031 1.23 Corer separated (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 8 Jul 09:30 0-3cm ~ 83.3 69.1 14.2 0.205 ~ 3-6cm ~ 88.6 80.5 8.1 0.101 ~ Soil pit (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 12 Jul 0930 0-6cm ~ I 19.3 18.4 0.9 0.049 II 21.2 20.2 1.0 0.050 0.049 ~ III 22.0 21.0 1.0 0.048 Corer total (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 12 Jul 0930 0-6cm 137 184.0 173.3 10.7 0.062 1.26 Soil pit (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 14 Jul 0930 0-6cm ~ I 20.6 19.9 0.7 0.035 II 27.4 26.5 0.9 0.034 0.035 III 32.5 31.4 1.1 0.035 Corer total (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 14 Jul 0900 0-6cm 137 183.0 175.8 7.2 0.041 Soil clod (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 14 Jul 0900 0-6cm ? 134.0 129.2 4.8 0.037 0-6cm ? 118.8 114.2 4.6 0.040 0.036 0-6cm ? 83.6 81.0 2.6 0.032 Soil pit (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 18 Jul 0930 0-6cm ~ I 26.4 23.4 1.0 0.043 II 25.7 24.7 1.0 0.041 0.041 III 26.2 25.2 1.0 0.040 Corer total (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 18 Jul 0930 0-6cm 137 174.6 168.3 6.3 0.037 1.23 Soil clod Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 18 Jul 0930 0-6cm 153.4 222.6 214.1 8.5 0.040 1.53 93.2 137.3 131.7 5.6 0.043 -------------------- Sample taken 30 Jul 98 14:15CDT,jwm Corer total (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 30 Jul 14:15 0-6cm 137 186.2 180.9 5.3 0.029 Soil clod Date/ Time Depth Volume Fresh Dry Diff Grav fract WaxDry WaxWet blkdens 30 Jul 14:15 0-6cm 225.4 220.3 5.1 0.023 233.9 86.2 143.6 139.7 3.9 0.028 151.6 56.1 -------------------- Sample taken 5 Aug 98 11:30CDT,jwm We received about 1.8mm of rain at about 6:00-CDT, otherwise extreme dry. Soil pit (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 5 Aug 1130 0-6cm ~ I 34.9 33.6 1.3 0.0372 II 31.4 30.2 1.2 0.0397 III 24.9 23.9 1.0 0.0402 Note some problems with the corer and clod techniques as seen in the increase of weights. I'll record these anyway but clearly in error.jm Corer total (TD) Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens 5 Aug 1130 0-6cm 137 178.3 178.2 .1 Soil clod Date/ Time Depth Volume Fresh Dry Diff Grav fract WaxDry WaxWet blkdens 5 Aug 1130 0-6cm 152.5 154.1 -1.6 161.2 161.8 -0.6 Date/ Time Depth Volume Fresh Dry Diff Grav fract blkdens
The 1.5m TRH is back on the tower. I hope I have found the problem. Using the scope I was able to trace down an intermittent contact between the transmit pin, #21, on the 68HC11 chip and the socket. I pulled the chip out and played around with the socket contact. It appears the chip seats too deep in the socket. Pads were added to the bottom of the chip. In addition, I did not seat the chip completely down. If the sensor is alive after 48 hours then I believe the source of the problem has been found.
The 1.5m TRH is still stopping after 24 to 48 hour operation. The problem appears to be a open contact in the transmit line. After failing in the field the sensor is brought back into the trailer and tested. after about 1/2 to 1 hour the sensor fails. In the failed mode, I have tried to remove the electronics. Moving the board out about 1" gets the sensor running again. It does not go thru a reset. It just starts sending data out again. This is why I believe it is an open circuit somewhere. We may need to reseat the processor and rom chips. I will wait until we get the chip pullers. I have tried soldering points on the board where the transmit signal would flow. This has not solved the problem. The interface connector block between the sensor board and the serial cable has been replaced.
The fast T gain setting was calculated to be 10.1263095. The average voltage range change was 0.4937633 volts. The data set was from 6/18/98 at 22:32:20 - 22:33:50. The calibration file,t.4.5m.OASIS98, in directory cal_files was changed.
The rain gauge was tested yesterday with the 44 tip reference. time (local) Tips 13:44 - 13:45 46 14:43 - 14:45 45
11:00 CDT, June 25 Steve removed the goretex filter covering the bandpass 50y sensor.
I modified the units of the CS615 soil moisture data in OASIS98/ops1/prep.config. The units of Mp were changed from "??" to "msec" The units of Msoil were changed from "%V" to "V frctn" since the data are volumetric fraction rather than percent volume.
A scatter plot of Rnet (REBS Q7) versus Rsum (4 Eppleys) shows: Rsum > Rnet Rnet > 150 W/m^2 Rsum < Rnet Rnet < 150 w/m^2 A linear fit of Rsum to Rnet give Rsum = 1.11*Rnet - 0.66 but there is noticeable non-linearity in the scatter plot.
Wx: Clear, steady wind from the south, some clouds to the NW. Base: ok; no OKMN data yet T: 1.5m stopped about 4 am CDT; 6.5m questionable, particularly at night. RH: ok P: ok Props: ok Radiation: ok (T,G,M)soil: ok Sonics: ok Krypton: ok fastT: ok bph: ok Rain: ok Comments: The data from the 3 sets of soil sensors vary, but I assume that this is mostly caused by small differences in the installation, e.g. the depth of the sensors.
Reboot ASTER due to lockup on network link.
OK Climat. Survey 405-325-2541 Scott Richardson 405-325-2777 Jerry Brotzge 405-325-1760 Dave Grimsley 405-325-3051 Marc Johnston 405-325-6161 Network link (Harolda) 405-325-1555 OU police 405-325-2864 Marriott 405-366-0900 Aster cell phone 405-808-2868
From the data, Tsoil.2 appears to be closer to the surface than Tsoil.1 and Tsoil.3. I dug down and pulled Tsoil.2 down a bit at about 8:15 CDT. 8:45 CDT: I did not look at the data carefully enough. Tsoil.2 actually appeared to be deeper than 1 and 3. I dug it up again and tried to push it closer to the surface. I put some new sod on the surface when I backfilled the hole.
The Everest Tsurface sensor is mounted at the 10m level of the hygrothermometer tower on a boom pointing SW. The sensor is pointing down to the south at a vertical angle of roughly 45 degrees. There is a possibility that it may be seeing the 9m hygrothermometer, which is on a longer boom, also pointing to the SW.
The HYGROTHERMOMETER has been instrumented. All systems are go! Mounted radiation shield intakes pointing nominally south. Changed the order of the sensors as follows: Old channel/ht S/N New channel/ht -------------------------------------- 200/0.5m 001 201/1.5m 201/1.5m 002 200/0.5m 202/4.5m 003 203/6.5m 203/6.5m 004 204/9.0m 204/9.0m 005 202/4.5m
Here are some issues with respect to the network link. The link was setup using the AnyTwist box (refer to drawing on bulletin board. (1) The Transceiver has 4 lights to look at. On top of the unit are 3 lights: green (our network), amber (transceiver link), and green (power). There are symbols above the lights which give you a clue as to what they represent. The network and transceiver lights should be blinking. The power light should be on. There is a 4th light in the back of the unit which is amber and represents the antenna connection. (2) If the network link goes down you should check these lights. If our network light is out then it is our problem. If any of the other lights go bad then call Harolda at 325-1555 and provide her with any information; ie, light status, etc. She will pass on the informaion to the necessary people to get things going again. (3) IP addresses: aster - 129.15.88.230 cocklebur - 129.15.88.232 defaultrouter - 129.15.88.1
Tried out the TRIME. Took a few readings. The response went down from 11.2% to 10.5% in about 10 minutes.
Steve reoriented the hygrothermometer intakes relative to their electronics enclosure, in preparation for mounting them on the tower. They are now pointing to the SE.
Several reboots of aster and cocklebur this morning associated with attempts to configure the wireless network connection to OU.
Read/set hygrothermometer serial numbers: Break-out box Height S/N --------------------------- 0 0.5m 001 1 1.5m 002 2 4.5m 003 3 6.5m 004 4 9m 005
Steve shot sonic boom azimuths with theodolite 4.5m sonic 2d 00m 20s 9m sonic 3d 38m 00s
Steve shot the azimuths of the prop booms, using the theodolite and the sun angle program. 1m 357d 42m 02s 177.7 2m 357d 41m 50s 177.7 4.5m 356d 53m 25s 176.9 6.5m 356d 20m 50s 176.3 9m 358d 45m 30s 178.8 At 15:15 CDT entered boom azimuth coefficients into props as listed in the second column above
The ASTER towers are in a line directly west of the Norman Oklahoma Climatological Survey (OCS) Mesonet tower. OCS - hygrothermometer tower 10m hygrothermometer - prop tower 8m prop - flux tower 7m flux - 5m nuw tower 7m
At about 10:15 CDT, I replaced goretex filters on the hygrothermometers The 0.5m, 1.5m, 4.5m hygrothermometers have the filter holders with 4 large slots. The 6.5m and 9m hygrothermometers have the filter holders with 8 smaller slots.
On June 19, around 1300 CDT, we transferred the hygrothermometer intercomparison from the radiation sawhorse to a horizontal tower section supported by two ladders. This is located about 15m north of the hygrothermometer tower, oriented E/W. The hygrothermometers are at a height of 1.5m, pointing to the south. With the radiation shield intakes pointing upwind (south) rather than downwind (north), the differences between the temperatures have been reduced from a range of about 0.2 C to a range of about 0.1 C.
OASIS98 site latitude: 35 deg 15 min 20 sec; 35.2556 longitude: 97 deg 29 min 01 sec; 97.4836 magnetic declination?
At 17:15 CDT, removed the gortex shields from the hygrothermometer 50Ys to determine the effect on the temperature intercomparison. Also noted that the 50Ys had the following PRTs 0.5m slow 1.5m fast 4.5m fast 6.5m slow 9m slow where "slow" is the original Vaisala PRT and "fast" is a faster response PRT used to replace the Vaisala PRT on several 50Y sensors prior to Flatland96. 9:12 CDT, June 21 Comparing last night's data to the previous night indicates no significant effect of running without the filters
Buried three sets of soil sensors 1-2m north of NW leg of radiation stand. They are arranged roughly east (site 1) to west (site 3). Placed heat flux plates at a depth of 2 inches (5 cm). Placed CS615 soil moisture probes at a depth of 1.5 inches (placed top of front plate of insertion tool at level of surface); I intended to place the CS615s at a depth of 1 inch, but this would put the electronics too close to the surface to cover with sod. I inserted the soil temperature probes at an upward angle from a depth of 2 inches. Inserting the soil temperature probes from below has the advantage of burying the cable; the disadvantage is that I am unsure of the exact location, relative to the surface, of the tip of the probe.
0.5m hygrothermometer quit again about 0400 GMT last night. Steve removed to work with it on the bench.
Leveled radiometer array using two-axis bubble level; checked okay (+- 0.1 degree) with one of the hand-held electronic levels. Radiometer electronic levels read: lev.rad.x 1.14 +- 0.03 lev.rad.y 0.23 +- 0.03
Steve entered prop pitches: 9m 304 6.5m 304 4.5m 305 2m 305 1m 305
08:43 CDT: 4.5m hygrothermometer has been reading 1.5 C too low. Steve removed it for check-out on bench 0.5m hygrothermometer quit last night. Steve swapped 0.5m and 4.5m cables at the sensors, so that 0.5m sensor is now coming in on 4.5m channel. 0.5m still not working; Steve removed it for check-out on bench 09:45 CDT: Stev fixed 4.5m hygrothermometer; temperature coefficient A1 was incorrect; changed it from a nominal 100 to 102.42268. Reinstalled on 4.5m channel.
Proceedures To Get More Air Time For Cellular Phone 1.) when placing a call, the operator will atuomatically inform you as to how much time is left. *note* long distance calls eat time much faster than local calls 2.) when getting short on air time, call Tom Davies in UCAR finance, and ask for more. (303) 497-8872. He will contact the appropriate people at Norman Cellular, and pay for more time. 3.) If you cannot contact Tom Davies, drive to Norman Cellular, corner of 24th and Main St. LaDeana Roberts is the person familiar with our account. Simply pay for a new phone card and put the bill on your travel voucher.
Steve ran a calibration on the fast T at 4.5m, cycling between "ambient" and "cal" ("ambient" + 5 degrees). Switching was done at approximate 10 sec intervals from 22:32:20 - 22:33:50 GMT.
Set up 5 hygrothermometers this morning at same level on radiation sawhorse; at a height of about 2m; intakes pointing north. Sawhorse is oriented roughly E/W and is located near base of hygrothermometer tower.
Steve S. asked me to review how the fast T calibration data are processed in S. Here is an example: dpar(lenmin=3) dpar.now() dpar(hour=15,min=20) iod <- prep("volts.102.ragwort") x <- read(iod) close(iod) fun.fastT.cal(as.vector(x),navg=10) The "as.vector" is needed since fun.fastT.cal isn't expecting an ATS object. The sequence of dpar calls is my way of being lazy and avoiding entering today's date (when the data were taken). Note that fun.fastT.cal is expecting a VOLTAGE change of about 0.5 V. It doesn't work if the calibrated "t.4.5m" signal is used.
Datel S/N 440690 seems to be marginal, and causes backplane problems. When ragwort (S/N 9006) is the Matrix CPU, it does not receive A/D data (I assume it is not receiving interrupts from the Datel). The bootup goes well, no errors are seen. The green LED is pulsing at a 1 second interval (the A/D interrupt period) which I don't think is normal. A week ago ragwort was reporting "HSTSTA ACK failed" messages on boot indicating it couldn't talk to the Datel at all (though I'm not sure that it was with #440690). At that time I blamed ragwort. It would also intermittently have problems talking to the ironics, reporting "serialSock: read 1024 bytes, result -1: S_errno_ECONNRESET", which causes the whole data acquisition process on the Matrix to crash. When cosmos (Matrix S/N 940211101) is swapped in (configured as ragwort), it seems to work with Datel 440690 (the A/D data comes through), but gets an ECONNRESET error talking to the Ironics. When the 440690 is replaced with Datel 320689 all is OK, with either Matrix card, so that is why I'm blaming the Datel, and I'm hoping that both of these problems (no A/D data and ECONNRESET with the Ironics) can be traced to the Datel. It's either that or El Nino. Further tests: Tried Datel 440690 with marigold. It came up ok and actually worked for a few minutes, then died. It then reported HSTSTA ACK errors on bootup. Currently we're running 440690 in cosmos, with only channel 107 and no serial channels active. So far so good. It could act as a spare datel if used with cosmos in this way.
ATI sonic, S/N 980504, as ragwort channel 201 has showed a few spikes (1 or 2 per hour) on V during testing in the staging area. Other components were clean. Serial #980505 as ragwort 200 showed no spikes. They were configured with a 5ms sampling interval, 10 samples/average, giving 20hz output, 9600 baud, with 2 levels and nsamples also output. The sonics were next to each other, extended from a benchtop, with the V arm of #980505 (which didn't spike) about 3 inches from a wall. Binary mode: In an effort to lower the serial overhead I tried to configure the sonics in binary mode. It mostly worked. U,V,W,Tc looked OK, but the levels (which were one byte each) were always 0. There did not seem to be a way to get nsamples output in binary mode.
Here is an update on my proposed staffing schedule for OASIS. Let me know if this is acceptable and then we can finalize housing reservations at the Mariott Residence Inn in Norman. Tom Assumptions: Steve S and Kurt leave Boulder on June 15; meet trailer in Norman ~mid-day June 16; Tom flies to Norman morning of June 17. Official operations begin on Saturday, June 27 6 weeks of operations end on Friday, August 7 4 days to tear down and pack, August 8-11 This should accomodate 3 x 3-week shifts with overlap: Kurt: June 15 until whenever set up and initial debugging completed; Return around August 7 for teardown Steve S: June 15 - July 5 Kathy July 3 - July 23 John : July 21 - Aug 11 Tom: June 17 - July 7 Steve O: July 5 - July 25 Tony: July 23 - Aug 11 The last shift has a small uncertainty associated with the start date of operations and could be a few days longer or shorter. If this is more than a day or two, we will adjust everyone's schedule. Tom
I have made reservations at the Residence Inn by Marriott (Jerrald Waites, 405-366-0900) in Norman for the OASIS project. These reservations are still confirmed with Kurt's Visa card for late arrival, so you will each need to be sure to call the Residence Inn if it is necessary to change your dates. The numbers in parenthesis are the confirmation numbers; the room rate is $59 per night. Kurt: June 16 - 26, (80632546), August 7-12 (82981911) Steve S: June 16 - July 5 (80633732) Tom: June 17 - July 7 (80633247) Kathy: July 3 - July 23 (82983297) Steve O: July 5 - July 25 (82984210) John: July 21 - Aug 11 (82985029) Tony: July 23 - Aug 11 (82985551) Tom Address: 2681 Jefferson Norman OK 73072
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