- 119: Prop vanes, Site , Wed 11-Jul-2001 10:39:34 MDT, Heights of prop vanes and hygrothermometers
The prop vanes and hygrothermometers were mounted at nominal heights
of 1, 2, 4, 7, and 10 m above the base of the towers.
Since the prop vanes project above their booms, the booms were actually
mounted 50 cm lower than the desired heights. The prop vanes project
18" + 0.5*(2.5") = 19.25" = 48.9 cm above the center of the booms. Thus
the actual heights of the prop vanes above the base of the tower are
1.1 cm lower than the nominal heights.
Since the hygrothermometers hang below their booms, the booms were
mounted 50 cm higher than the desired heights. The inlets to the
radiation shields are 16 5/8" + 0.5*2.5" = 17.875" = 45.4 cm below the
center of the booms. Thus the actual heights of the hygrothermometer
inlets above the base of the tower are 4.6 cm higher than the nominal
heights.
- 101: Prop vanes, Site , Thu 28-Sep-2000 10:42:38 PDT, Correction to prop-vane anemometer azimuths
I used sun angle tables for Sept 4, 1999 for the prop-vane azimuth
measurements, rather than Sept 4, 2000.
Following are the corrections to be applied in post-processing:
Time Height Azimuth Channel Azimuth+180deg Correction
(PDT) (m) (deg) (daisy) (deg)
09:35 10 130 55' 50" 204 310.9 +18'37"
09:55 7 129 57' 25" 205 310.0 +19'11"
10:15 4 132 30' 00" 206 312.5 +19'48"
10:30 2 131 48' 07" 207 311.8 +19'48"
10:45 1 132 45' 15" 208 312.8 +20'24"
- 68: Prop vanes, Site , Sat 16-Sep-2000 15:04:22 PDT, Checked 1m wind direction
Charlie and I checked the wind direction on the 1m prop vane
around 1450 PDT. The data showed a 10 deg offset from the
other vanes. However a recalibration using the jig to align
the vane with the boom showed no change.
- 64: Prop vanes, Site , Thu 14-Sep-2000 18:39:30 PDT, reinstalled 1m prop
Reinstalled the prop vane #1, which had been at 4m,
at 1m. the direction looked
okay in the lab, and so far the direction
has been fine on the tower.
Checked parameters (twh):
sagebrush:$ASTER: rserial daisy 208
*** use ^d or ^c to terminate rserial
send socket open to chicory
recv socket open to chicory
W:0003 208 136 3279 250 00l\n\r
W:0003 168 110 3307 250 00w\n\r
\r
\n\r
W:0003 175 115 3327 250 00r\n\r
W:0003 223 146 3391 250 00s\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 486 counts\n\r
Boom angle = 312.8 degrees\n\r
True North = 041 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0003 258 169 2958 250 00^\n\r
W:0003 241 158 3089 250 00
- 62: Prop vanes, Site , Wed 13-Sep-2000 17:32:49 PDT, Swapped 1m and 4m props
Charlie and I removed the 4m prop and replaced it with the 1m prop
around 1500 PDT, September 13.
We entered the boom angle from the previous 4m prop, 312.5,
in the replacement prop.
sagebrush:$ASTER: rserial daisy 206
*** use ^d or ^c to terminate rserial
send socket open to chicory
recv socket open to chicory
W:0006 88 58 795 250 00P\n\r
W:0006 88 58 838 250 00R\n\r
\r
\n\r
W:0006 88 58 880 250 00U\n\r
W:0006 90 59 829 250 00X\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 255 counts\n\r
Boom angle = 312.5 degrees\n\r
True North = 323 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0006 100 66 928 250 00R\n\r
W:0006 105 69 914 250 00O\n\r
received interrupt signal (#2)
- 35: Prop vanes, Site , Wed 06-Sep-2000 15:40:23 PDT, Prop.cor and flakey 4 meter prop
The prop vane azimuths have been entered in $ASTER/cal_files/prop.cor,
and the covars rerun to correct the data collected before the
azimuths were entered into the sensor.
The azimuth of the 4 meter prop (id=3) was measured as 312.5 deg.
On Sep 4 (logbook entry 21) we reset the zero of the 4 meter prop, and
the boom align value changed from 406 to 346 counts. This is a difference of
60 counts, or 60 * 360deg/512cnt = 42.2 degrees. So I entered
a value of 312.5 + 42.2 = 354.7 degrees into prop.cor for this prop.
This made the 4m prop agree with the others from Sep 2 14:00 GMT
to sep 5 16:30 GMT.
Prior to Sep 2 14:00 GMT however, the 4m prop direction was
61 degrees higher than the others, estimated from a time series plot..
It appears that the output of the prop suddenly jumped by 61 degrees
at that time. To correct for this, the correction value in prop.cor
is 354.7 - 61.2 = 292.5 degrees from the beginning of the project
until Sep 2 14:00 GMT.
- 27: Prop vanes, Site , Tue 05-Sep-2000 10:41:18 PDT, Propvane azimuth angles
On September 4, I measured the azimuth angles of the prop-vane booms,
using a theodolite, properly oriented with known sun angles.
Note: I used sun angles for year 1900 rather than year 2000.
The corrections are found in logbook entry 101.
The measured angles are:
Time Height Azimuth Channel Azimuth+180 deg
(PDT) (m) (deg) (daisy) (deg)
09:35 10 130 55' 50" 204 310.9
09:55 7 129 57' 25" 205 310.0
10:15 4 132 30' 00" 206 312.5
10:30 2 131 48' 07" 207 311.8
10:45 1 132 45' 15" 208 312.8
At 9:30 PDT, September 5, I entered the propvane boom angles
as measured with the theodolile (~ 131 deg).
At 10:30 PDT, I changed the propvane boom angles to the measured values
plus 180 degrees (~ 311 deg).
Following are the serial sessions for changing channels 204-208.
I lost the record of the session for changing channel 208.
I have appended a query to channel 208.
sagebrush:$ASTER/projects/SGS00/ops1: rserial daisy 204
*** use ^d or ^c to terminate rserial
send socket open to chicory
recv socket open to chicory
W:0004 166 109 1803 250 00q\n\r
W:0004 164 108 1766 250 00l\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 502 counts\n\r
Boom angle = 130.9 degrees\n\r
True North = 316 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
d310.9\0x8\0x89\r
D310.9\0x8\0x89\r
\n\r
\n\r
Illegal value entered. Range 0--3600\n\r
d3109\r
D3109\r
\n\r
q\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 502 counts\n\r
Boom angle = 310.9 degrees\n\r
True North = 060 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0004 282 185 232 250 00C\n\r
received interrupt signal (#2)
sagebrush:$ASTER/projects/SGS00/ops1: rserial daisy 205
*** use ^d or ^c to terminate rserial
send socket open to chicory
recv socket open to chicory
W:0002 327 215 1868 250 00k\n\r
W:0002 335 220 1853 250 00v\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 402 counts\n\r
Boom angle = 130.0 degrees\n\r
True North = 217 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
d3100\r
D3100\r
\n\r
q\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 402 counts\n\r
Boom angle = 310.0 degrees\n\r
True North = 473 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0002 210 138 19 250 00]\n\r
W:0002 207 136 3576 250 00n\n\r
received interrupt signal (#2)
sagebrush:$ASTER/projects/SGS00/ops1: rserial daisy 206
*** use ^d or ^c to terminate rserial
send socket open to chicory
recv socket open to chicory
W:0003 32 21 1132 250 00f\n\r
W:0003 22 15 1077 250 00\\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 346 counts\n\r
Boom angle = 132.5 degrees\n\r
True North = 158 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
d3125\r
D3125\r
\n\r
q\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 346 counts\n\r
Boom angle = 312.5 degrees\n\r
True North = 414 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0003 165 108 705 250 00D\n\r
W:0003 194 127 742 250 00@\n\r
received interrupt signal (#2)
sagebrush:$ASTER/projects/SGS00/ops1: rserial daisy 207
*** use ^d or ^c to terminate rserial
send socket open to chicory
recv socket open to chicory
W:0005 175 115 2570 250 00q\n\r
W:0005 179 117 2601 250 00p\n\r
W:0005 183 120 2580 250 00u\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 424 counts\n\r
Boom angle = 131.8 degrees\n\r
True North = 237 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
d3118\r
D3118\r
\n\r
q\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 424 counts\n\r
Boom angle = 311.8 degrees\n\r
True North = 493 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0005 246 161 721 250 00E\n\r
W:0005 226 148 697 250 00v\n\r
received interrupt signal (#2)
sagebrush:$ASTER/projects/SGS00/logbook: rserial daisy 208
*** use ^d or ^c to terminate rserial
send socket open to chicory
recv socket open to chicory
W:0006 223 146 71 250 00X\n\r
W:0006 220 144 68 250 00W\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 255 counts\n\r
Boom angle = 312.8 degrees\n\r
True North = 322 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0006 201 132 11 250 00g\n\r
W:0006 237 155 3500 250 00s\n\r
received interrupt signal (#2)
- 21: Prop vanes, Site , Sat 02-Sep-2000 12:12:48 PDT, Prop vane parameters; new alignment
Field notes about prop vane configuration
height id pitch of
installed prop
10m 4 305 (prop was calibrated on this sensor)
7m 2 305 (prop was calibrated on this sensor)
4m 3 306 (labeled as #005)
2m 5 306 (labeled as #001)
1m 6 306 (labeled as #003)
Ran rserial to display current prop vane parameters.
Then set the prop pitches for the 4m and 1m sensors to 306 per
the field notes.
Boom angles of prop vanes have not yet been determined.
*****************************************************
orig new
height chan id boom boom true prop prop
align angle north pitch pitch
10m 204 4 503 0.0 503 305
7m 205 2 402 0.0 402 305
4m 206 3 406 0.0 406 305 306
2m 207 5 420 0.0 420 306
1m 208 6 254 0.0 254 305 306
*****************************************************
Around 1730 PDT, Sept 3, we re-zeroed the vane angle using the jig to
align the vane with the boom. After this operation, we had the following
parameters (twh) (note the big change on 4m):
*****************************************************
height chan id boom boom true prop
align angle north pitch
10m 204 4 502 0.0 502 305
7m 205 2 402 0.0 402 305
4m 206 3 346 0.0 346 306
2m 207 5 424 0.0 424 306
1m 208 6 255 0.0 255 306
*****************************************************
Actual rserial output (before and after pitch change) follows.
rserial daisy 204
*** use ^d or ^c to terminate rserial
connected to chicory
connected to chicory
W:0004 315 207 1103 250 00}\n\r
W:0004 280 184 1083 250 00q\n\r
W:0004 236 155 1059 250 00o\n\r
\n\r
q\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 503 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 503 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
clover:$ASTER: rserial daisy 205
*** use ^d or ^c to terminate rserial
connected to chicory
connected to chicory
W:0002 83 55 195 250 00b\n\r
W:0002 83 55 169 250 00a\n\r
W:0002 79 52 183 250 00c\n\r
\n\r
q\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 402 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 402 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
clover:$ASTER: rserial daisy 206
*** use ^d or ^c to terminate rserial
send socket open to chicory
receive socket open to chicory
W:0003 108 71 444 250 00X\n\r
W:0003 106 70 247 250 00Z\n\r
\n\r
q\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 406 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 406 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
clover:$ASTER: rserial daisy 207
*** use ^d or ^c to terminate rserial
send socket open to chicory
receive socket open to chicory
W:0005 71 47 647 250 00_\n\r
W:0005 62 41 647 250 00e\n\r
q\n\r
\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 420 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 420 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
clover:$ASTER: rserial daisy 208
*** use ^d or ^c to terminate rserial
send socket open to chicory
receive socket open to chicory
W:0006 134 88 162 250 00Q\n\r
W:0006 129 85 155 250 00N\n\r
X\r
\n\r
Your choice of 32767 gives a data rate\n\r
slower or equal to 0.1Hz. \n\r
q\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 254 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 254 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
*****************************************
After new alignment:
*****************************************
sagebrush:/data/clover: rserial daisy 204
*** use ^d or ^c to terminate rserial
send socket open to chicory
receive socket open to chicory
\r
\r
\n\r
W:0004 254 167 757 250 00x\n\r
W:0004 259 170 808 250 00|\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 502 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 502 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0004 271 178 676 250 00w\n\r
W:0004 289 190 728 250 00v\n\r
received interrupt signal (#2)
sagebrush:/data/clover: rserial daisy 205
*** use ^d or ^c to terminate rserial
send socket open to chicory
receive socket open to chicory
W:0002 254 167 610 250 00F\n\r
W:0002 257 169 673 250 00x\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 402 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 402 counts\n\r
Prop Pitch = 305 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0002 244 160 680 250 00G\n\r
W:0002 251 165 669 250 00}\n\r
received interrupt signal (#2)
sagebrush:/data/clover: rserial daisy 206
*** use ^d or ^c to terminate rserial
send socket open to chicory
receive socket open to chicory
W:0003 192 126 765 250 00~\n\r
W:0003 212 139 770 250 00E\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 346 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 346 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0003 243 159 717 250 00~\n\r
W:0003 238 156 743 250 00~\n\r
received interrupt signal (#2)
sagebrush:/data/clover: rserial daisy 207
*** use ^d or ^c to terminate rserial
send socket open to chicory
receive socket open to chicory
W:0005 194 127 529 250 00{\n\r
W:0005 206 135 571 250 00E\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 424 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 424 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0005 257 168 559 250 00s\n\r
received interrupt signal (#2)
sagebrush:/data/clover: rserial daisy 208
*** use ^d or ^c to terminate rserial
send socket open to chicory
receive socket open to chicory
W:0006 157 103 631 250 00G\n\r
W:0006 157 103 688 250 00{\n\r
Q\r
\n\r
Parameters \n\r
Sample rate = 250 Hz\n\r
Xmit rate = 0250 samples\n\r
Boom align = 255 counts\n\r
Boom angle = 0.0 degrees\n\r
True North = 255 counts\n\r
Prop Pitch = 306 mm/rev\n\r
\n\r
\r
\r
\n\r
W:0006 154 101 581 250 00H\n\r
W:0006 139 91 533 250 00P\n\r
received interrupt signal (#2)
k