CHATS: sonic Messages: 44 Entries..

During teardown, on June 11, we took a measurement of top of the 14m boom.  
It was actually located 14.15m (to the top of the uppermost wood block).  

Yes, the 14m boom was moved.  Steve and I moved it early in Phase
1 when we were installing the triple hot-films for the first time.
There were no more sliding mounts, and 14m happened to be immediately
below a point where the guy wires attached to the tower.  So, the guy
wires blocked our ability to raise the boom on the rotating/lifting style
mounts.  We decided at that time to shift the boom up to immediately
above the point where the guy wire attached to the tower.  When we
were dismantling the tower, I had the thought that we might not have
measured the associated height change.  So, before Chris removed that
boom, Steve and I brought the tape up to him for a quick measurement.

So the 14m boom was at this new height for most of the campaign.
The date that it actually changed should be in the log book, i.e. the
day that Steve and I finally got the hot-films installed.


Logbook Entry #60:

Deployed hot films late Saturday afternoon, 3/25 07:07 GMT.

Disconnected sonic splitters on upper channels S7 and S9 at 11:20.

Measured sonic azimuths with data scope; declination set to 14.7 degree

Sonic	Tom	Ned	mean
----------------------------
1t	357.1	358.4	357.75
2t	356.5	355.7	356.1
3t	359.8	358.7	359.25
4t	358.4	356.6	357.5
5t	357.9	356.7	357.3
6t	356.1	355.8	355.95
7t	356.2	356.4	356.3
8t	356.4	355.3	355.85
9t	359.1	357.8	358.45

1b	357.2	357.7	357.45
2b	357.1	358.3	357.7
3b	358.7	358.2	358.45
4b	358.2	358.3	358.25
5b	359.0	358.1	358.55
6b	359.7	359.7	359.7
7b	358.8	359.0	358.9
8b	358.7	358.3	358.5
9b	359.8	358.8	359.3

The mean difference between tom and ned is
> mean(sonic.az[,1]-sonic.az[,2])
[1] 0.3833333

and the rms difference is
> sqrt(sum((sonic.az[,1]-sonic.az[,2])^2))/18
[1] 0.2166667

Measured sonic heights with theodolite:

Theodolite is 15.55 + .33 m south of sonic face.  Zero elevation angle  
is a height of 1.683 m at the east tower of the west array.

Sonic	bottom		top		azimuth		height
--------------------------------------------------------------
1t	85.31.51	85.22.46	278.26.35	2.97
2t	85.33.43	85.24.59	280.16.40	2.95
3t	85.35.20	85.26.06	281.57.46	2.94
4t	85.35.36	85.26.34	283.48.07	2.93
5t	85.35.52	85.26.45	285.35.37	2.93
6t	85.36.28	85.27.27	287.25.43	2.92
7t	85.36.39	85.27.32	289.12.16	2.92
8t	85.35.47	85.26.34	290.58.14	2.93
9t	85.35.52	85.26.40	292.43.03	2.93
TRH	85.44.18			298.21.42	2.96

1b	88.45.45	88.36.40	278.27.43	2.05
2b	88.48.57	88.56.53	280.12.56	2.00
3b	89.08.47	88.59.37	282.02.31	1.94
4b	89.10.26	89.01.05	283.47.33	1.94
5b	89.11.49	89.02.36	285.35.12	1.93
6b	89.14.38	89.05.30	287.19.26	1.91
7b	89.16.52	89.07.30	289.07.13	1.90
8b	89.17.34	89.08.12	290.57.06	1.90
9b	89.17.29	89.08.05	292.45.33	1.90
TRH	89.03.32			298.22.53	1.97

P port(center)		87.26.47	292.33.02	2.39

ttyS1 lower (1.5m):
ET= 60 ts=i XD=d GN=223a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=cb9 d TNb=aba JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=094  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN0673 25jan07 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=15996 &=0 os=

ttyS2 lower (3m):
ET= 60 ts=i XD=d GN=122a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=011 010 010 ELb=012 010 010 TNo=aba d TNb=7ba JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=9 8 8 tlb=a 8 8  CA=1 TD=  duty=097  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0674 04aug06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=15279 &=0 os= 

ttyS5 lower (4.5m):
ET= 60 ts=i XD=d GN=212a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=2 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=aca d TNb=bab JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=093  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN1120 21jun06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=39729 &=0 os= 

ttyS6 lower (6m):
SN0119 29jun05 rev 4.0s &=0 AC=1 AF=050 AH=1 AO=00300 ar=0 AQ= 60 BR=0 BX=0\r\n CF=1 C0o= 0 0 0 C0b= 0 0 0 CA=1 CD=0 cs=50966 DC=4 dl=015 DM=c DR=03465\r\n duty=089 DT=16240 ET= 60 FA=00050 FL=007 FX=038 GN=444a GO=00000 HA=0\r\n HG=01560 HH=02700 KT=0 LG=00832 LH=00100 MA=-020 MS=-010 MX=0 ND=1 NI=2\r\n ns=00203 OR=1 os=0 PD=2 RA=00020 RC=0 RF=00900 RH=015 RI=1 RS=1 RX=002 SD=0\r\n SL=035 SR=1 ss=1 T0123=1000 TD=a TF=02600 02600 02600 TK=1 TO= 0 0 0 TP=t\r\n ts=i UX=0 WM=o WR=006 XD=d xp=2 XX=00875 ZZ=0

ttyS7 lower (7.5m):
ET= 60 ts=i XD=d GN=111a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=ddb d TNb=ddc JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=093  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN0540 07sep06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=22863 &=0 os= 

ttyS2 upper (9m):
ET= 60 ts=i XD=d GN=111a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=ecd d TNb=ebe JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=093  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0536 12jan07 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=30710 &=0 os= 

ttyS5 upper (10m):
T= 60 ts=i XD=d GN=041a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 009 010 TNo=eab d TNb=ccb JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 7 8  CA=1 TD=  duty=092  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN0671 11sep06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=64681 &=0 os=

ttyS6 upper (11m):
ET= 60 ts=i XD=d GN=111a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d sa=1\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELDb=010 010 010 TNo=dcc d TNb=ddb JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 DTR=01740 CA=1 TD=  duty=082     AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 DTC=01160 RD=o ss=1 XP=2 RF=018 DS=007 SN0364 27may04 HF=005 JC=3 CB=3 MD=5 DF=05000 RNA=1 rev 3.0a cs=14725 &=0 os=

ttyS17 upper (12.5m):
SN0743 08oct03 rev 4.0r &=0 AC=1 AF=050 AH=1 AO=00300 ar=0 AQ= 60 BR=0 BX=0\r\n CF=1 C0o= 0 0 0 C0b= 0 0 0 CA=1 CD=0 cs=01570 DC=4 dl=015 DM=c duty=085\r\n DT=16240 ET= 60 FA=00050 FL=007 FX=038 GN=411a GO=00000 HA=0 HG=01560\r\n HH=02700 KT=0 LG=00832 LH=00100 MA=-020 MS=-010 MX=0 ND=1 NI=2 ns=00203 OR=1\r\n os=0 PD=2 RA=00020 RC=0 RF=00900 RH=015 RI=1 RS=1 RX=002 SD=0 SL=035 SR=1\r\n ss=1 T0123=1000 TD=a TF=02600 02600 02600 TK=1 TO= 0 0 0 TP=t ts=i UX=0 WM=o\r\n XD=d xp=2 XX=00875 ZZ=0

ttyS7 upper (14m):
ET= 60 ts=i XD=d GN=101a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=2 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=bcb d TNb=bcb JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=093  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN1123 15jun06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=22803 &=0 os= 

ttyS8 upper (18m):
ET= 60 ts=i XD=d GN=121a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BXD=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d sa=1\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=bcb d TNb=bca JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 DTR=01740 CA=1 TD=  duty=085     AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 DTC=01160 RD=o ss=1 XP=2 RF=018 DS=007 SN0738 28mar03 HF=005 JC=3 CB=3 MD=5 DF=05000 RNA=1 rev 3.0a cs=18961 &=0 os= 

ttyS9 upper (23m):
T= 60 ts=i XD=d GN=212a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=688 d TNb=696 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=093  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN1117 07aug06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=53343 &=0 os= 

ttyS10 upper (29m):
SN0744 09oct03 rev 4.0r &=0 AC=1 AF=050 AH=1 AO=00300 ar=0 AQ= 60 BR=0 BX=0\r\n CF=1 C0o= 0 0 0 C0b= 0 0 0 CA=1 CD=0 cs=07296 DC=4 dl=015 DM=c duty=085\r\n DT=16240 ET= 60 FA=00050 FL=007 FX=038 GN=222a GO=00000 HA=0 HG=01560\r\n HH=02700 KT=0 LG=00832 LH=00100 MA=-020 MS=-010 MX=0 ND=1 NI=2 ns=00203 OR=1\r\n os=0 PD=2 RA=00020 RC=0 RF=00900 RH=015 RI=1 RS=1 RX=002 SD=0 SL=035 SR=1\r\n ss=1 T0123=1000 TD=a TF=02600 02600 02600 TK=1 TO= 0 0 0 TP=t ts=i UX=0 WM=o\r\n XD=d xp=2 XX=00875 ZZ=0

We measured the distance between the yokes in the new, narrow configuration.
All yokes were placed correctly and accurately centered within the tape markers
from phase I.

All yokes were separated by 50cm +-3mm EXCEPT the distance between yokes
2b and 3b were found to be 50.8mm. We believe this was a measurement error
during Phase I and decided to leave it in place for Phase-to-Phase consistency 
(discussion among Lenschow, Patton, Poulos).

Ned found what may be an errant reading in the 9m sonic winds (they seem 
slightly low, perhaps). We are investigating.

13may07 15:30
14m sonic /dev/ttyS7 upper tee'd to Andy's ACD.
23m sonic /dev/ttyS9 upper tee'd to Andy's data system. 

1510-1600LT - Cut branches and leaves that have grown out to interfere with sonic 5b (and array movement up/down). The leaves on 5b had grown so as to blow into
the sonic path in West or nearly westerly winds.

I determined the good wind directions for the period April 15, 17:10, until
May 9, 00:00.  In Splus:

> dpar(start="2007 4 15 17:10")
> dpar(end="2007 5 9 00:00")
> dpar(sfxs="ha", hts=9.6)
> good.dir()

The periods with a good wind direction longer than 15 minutes total
177 hours 50 minutes with 49 periods longer than 1 hour.

Aril 15th , 2007
I added wooden dowels to the 'EMT' type tubing junctions in an attempt to
stiffen up the transition from one pipe to the other, with some, but not a lot,
of success. Most of the arrays look OK, with a minimum amount of "sag" to the
inner sonics, but for some reason, the lower east array had a large sag
between the inner and outer sonics. My hope was that a stiffer pipe, or better
junction between the two pieces of pipe would improve this situation, and it
did, but not by a whole lot.
The heights of the sonics need to be measured again.
The arrays that were modified are both upper and lower on west, and then
lower on east.
Upper on east was not modified because the dowel would not fit into the EMT
pipe. 

Heights of top of booms on central tower in low-level array:
TRH:	3.46m
Sonic:	2.91m
TRH:	2.47m
Sonic:	1.95m

I attempted to shoot the azmuths of of the sonics on the 30 M  tower using the
datascope   plus or minus .5 deg accy (shooting into the boom)
I didn't get too far due to a lot of leaves obscuring the view.

1.5 meter	94.8
3.0 meter	96.2
4.5 meter	95.6
6.0 meter	94.8 (this one mostly a guess due to limited clear view)
7.5 meter	90.1 (this reading not very believeable because only clear view
			was from a very steep angle)
9.0 meter	94.8
all sonics higher than 9 meters were blocked by foliage, or angle of view was
too steep

I also attempted to shoot the hot film azmuths, but I couldn't get a clear view
of them either.

shot sonic azmuths using datascope (+ or - .5 deg accy) and using a 14.7 deg
magnetic declination (true north is 14.7 deg west of mag north)

West array  going from west to east:

upper		359.6	000.6	001.4	000.5

lower		000.5	000.6	000.8	000.4

center tower:

upper		000.8

lower		001.4

Eastarray going from west to east:

upper		358.9	000.3	359.2	000.6 - this last reading taken up close due to large tree in field of view
lower		001.4	000.6	359.1	000.2 

Since 2t has had bad diag values, we swapped it today (using the step ladder).
0853 removed at ~1445
0120 installed at ~1457

Measured on April 11, 2007, between 11:30-13:30 PDT.

A plot showing the estimated horiz location of each sonic is:

   http://www.mmm.ucar.edu/abl/chats/chats_images_wgps.html

Looking at a previous logbook entry that measured boom heights (#73) i
just realized that the measurement i used was slightly different than
that done previously.  The theodolite was setup 19.8-0.2=19.6cm away
from a measuring tape that was stuck on the inner west tower section
of the array (note that the height of this baseseplate was about 2cm
higher than the central baseplate).  The "-0.2" cm is since the "zero"
on the tape was at 20cm (i didn't realize this until after i had
measured it).  The az angle of the tape was 208.18.40.

The theodolite was located approx in front of sonic #3 and could view
all sonics from this position (just behind tree row S2).  Rather than
measure the top/bottom of the back of the sonic (as in logbook entry
#73), I estimated the location of the air space between the
transducers.  And then swung the view over to the tape to get an
estimate of the height of the sonic.

To make the calculation of sonic height it was necessary to assume the
location of the sonic was at a fixed distance in front of the
measuring tape...this distance was assumed to be 1.58m (essentially
the distance of the sonic booms)....after assuming this, the
horizontal distance from the theodolite and each sonic could be
calculated (call this D'), and the heights were measured with the
following formula:

Projection of D' onto the Az to the Measuring Tape:

          L' = D' * cos(Az-Az_tape)

Difference in Distance between L' and L (distance to the meas tape):

          X = 19.6m - L'

Adjustment to the tape measurement (Z_tape) due to different horiz
distances:

          Z_sonic = Z_tape - X*(tan(90-Angle_vert))

---------------------
The measurements are:

Notes:     (1) Angles are shown in Deg.min.sec
           (2) "Z_tape" is the height measured through the theodolite
                by viewing the tape that was attached to the tower section.
           (3) "w/ Tape" is the distance from the ground to the bottom
                strut of each 2m sonic (done by hand)


                  Angles           Heights
    Sonic   Azimuth   Vertical   Z_tape  w/Tape (to lower strut) Final Est Ht.
    ------------------------------------------------------------------------
    1b      191.09.17  88.54.37  2.004   1.755 % west side       1.959 m
    2b      196.24.41  88.56.50  1.995   1.740                   1.956 m
    3b      201.51.37  89.01.58  1.965   1.710                   1.933 m
    4b      207.10.30  89.02.39  1.960   1.735                   1.932 m
    5b      212.37.51  89.01.28  1.969   1.770                   1.945 m
    6b      217.42.19  89.02.05  1.965   1.755                   1.946 m
    7b      222.31.33  89.18.54  1.870   1.680                   1.859 m
    8b            NaN       NaN    NaN   1.685                     NaN
    9b      231.31.50  89.16.25  1.881   1.730  % east side      1.876 m
    TRH     210.20.13  89.01.27  1.970

    1t      191.09.50  85.53.00  3.070   % west side             2.898 m
    2t      196.20.21  85.52.58  3.069                           2.915 m
    3t      201.45.08  85.54.56  3.058                           2.922 m
    4t      207.09.20  85.55.24  3.055                           2.937 m
    5t      212.36.23  86.01.58  3.015                           2.918 m
    6t      217.44.29  86.06.23  2.993                           2.915 m
    7t      222.37.17  86.14.12  2.945                           2.886 m
    8t      227.18.00  86.19.01  2.915                           2.874 m
    9t      231.34.04  86.32.53  2.835    % east side            2.813 m
    TRH     210.19.42  86.09.00  2.975

    Az of center tower = 211.48.49

    Az of tape measure = 208.18.40
            3.5m = 84.39.31
            3.4m = 84.56.24
            3.0m = 86.04.36
            2.5m = 87.30.30
            2.0m = 88.56.18

data_stats showed that the 4.5m sonic wasn't reporting.  I got it going
by typing &d's at it using rserial.

We had this behaviour during TREX with 2 sonics -- we should check the serial 
numbers.

P.S. This is SN 1120.  The TREX sonic that was logged as misbehaving was 1123.
Did we have this problem in CuPIDO as well?

4/4/07

Starting mid-morning, aaround 10:55 PDT we moved the array down to 5.5 m.

The sonic heights on the central tower are 5.86 = 0.05 = 5,91m and
4.90 + 0.05 = 4.95 m.

Finished moving the array around 17:15 PDT

Recycled power on sonic 3t (ttyS9 west) to get it going again.
Restarted at 9:26, April 3.  

Sonic stopped at 10:10 on April 2, which was around the time that Keith was
cleaning up the cable tangle that resulted from the reconfiguration of the
array.  From the sonic "diag" it appears that Keith did this work from
~9:00 - 10:30 April 2.

Measured heights of sonic  booms (m) and added height of sonic above
boom (5 cm).
Number horizontal array towers from east to west; center tower = 3

Tower	sonic	height.b		height.t
------------------------------------------------------------	
1	9	9.63 + 0.05 = 9.68	10.62 + 0.05 = 10.67
2	6	9.62 + 0.05 = 9.67	10.62 + 0.05 = 10.67
3	5	9.58 + 0.05 = 9.63	10.58 + 0.05 = 10.63
4	4	9.60 + 0.05 = 9.65	10.60 + 0.05 = 10.65
5	1	9.61 + 0.05 = 9.66	10.61 + 0.05 = 10.66

Ned and I used the datascope to measure the horizontal orientations of the 
sonics in the horizontal array.  These are magnetic orientations with zero
declination. For the narrow Phase I lower.

Sonic	Tom	Ned     
---------------------
1b	344.4	343.8
2b	344.1	343.7
3b	344.4	344.0
4b	344.3	344.2
5b	344.1	343.9
6b	344.4	344.2
7b	343.9	344.4
8b	343.7	343.5
9b	344.8	344.4

1t	343.4	343.0
2t	343.7	343.5
3t	345.1	343.7
4t	344.0	343.7
5t	343.3	343.5
6t	342.3	342.8
7t	342.5	342.4
8t	342.0	342.2
9t	343.5	343.6

On Saturday, March 31, we spent the most of the day expanding the horizontal
array to a sonic spacing of 1.72 m and raising the array back up to 10 m.
First we lowered the array to near ground level for easy access, then we
spread out the sonics, and then we raised it up to the former height at the top
of the canopy.  This was begun around 10-11 AM and completed at 8 PM.

[aster@aster raw_data]$ rserial /dev/ttyS1 west
ET= 60 ts=i XD=d GN=424a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d sa=1\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=799 d TNb=889 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 DTR=01740 CA=1 TD=  duty=085     AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 DTC=01160 RD=o ss=1 XP=2 RF=018 DS=007 SN0367 28may04 HF=005 JC=3 CB=3 MD=5 DF=05000 RNA=1 rev 3.0a cs=29072 &=0 os= \r\n>

[aster@aster raw_data]$ rserial /dev/ttyS2 west
ET= 60 ts=i XD=d GN=545a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=2 ZZ=0 DC=1  ELo=009 010 009 ELb=009 010 009 TNo=766 d TNb=765 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=7 8 7 tlb=7 8 7  CA=1 TD=  duty=091  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0672 03aug06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=12312 &=0 os= \r\n

[aster@aster raw_data]$ rserial /dev/ttyS5 west
ET= 60 ts=i XD=d GN=554a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 011 011 ELb=010 011 010 TNo=757 d TNb=748 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 9 9 tlb=8 9 8  CA=1 TD=  duty=097  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0855 26jun06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=64838 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS6 west
ET= 60 ts=i XD=d GN=433a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=7c9 d TNb=799 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=094  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0538 02aug06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=27043 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS7 west
ET= 60 ts=i XD=d GN=433a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=8ab d TNb=9bc JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=094  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0377 12jan07 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=60173 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS8 west
ET= 60 ts=i XD=d GN=454a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 011 ELb=011 011 011 TNo=776 d TNb=776 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 9 tlb=9 9 9  CA=1 TD=  duty=098  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0853 27oct06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=41228 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS9 west
ET= 60 ts=i XD=d GN=454a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 009 010 ELb=010 010 010 TNo=b89 d TNb=a78 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 7 8 tlb=8 8 8  CA=1 TD=  duty=094  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN0537 01sep06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=33258 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS10 west
ET= 60 ts=i XD=d GN=455a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=655 d TNb=555 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=094  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN1124 08aug06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=24803 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS11 west
ET= 60 ts=i XD=d GN=555a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=2 ZZ=0 DC=1  ELo=010 009 010 ELb=010 010 010 TNo=745 d TNb=756 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 7 8 tlb=8 8 8  CA=1 TD=  duty=094  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN1119 20jun06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=09737 &=0 os=

[aster@aster raw_data]$ rserial /dev/ttyS1 east
ET= 60 ts=i XD=d GN=344a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d sa=1\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=aa9 d TNb=aa9 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 DTR=01740 CA=1 TD=  duty=086     AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 DTC=01160 RD=o ss=1 XP=2 RF=018 DS=007 SN0366 19jul02 HF=005 JC=3 CB=3 MD=5 DF=05000 RNA=1 rev 3.0a cs=19603 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS2 east
ET= 60 ts=i XD=d GN=343a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d sa=1\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 DELb=010 010 010 TNo=b79 d TNb=b79 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8 DTR=01740 CA=1 TD=  duty=085     AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 DTC=01160 RD=o ss=1 XP=2 RF=018 DS=007 SN0378 01dec99 HF=005 JC=3 CB=3 MD=5 DF=05000 RNA=1 rev 3.0a cs=39543 &=0 os=

[aster@aster raw_data]$ rserial /dev/ttyS5 east
ET= 60 ts=i XD=d GN=454a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=667 d TNb=657 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=096  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0677 04aug06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=62699 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS6 east
ET= 60 ts=i XD=d GN=444a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d sa=1\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 011 011 ELb=010 011 011 TNo=765 d TDNb=685 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 9 9 tlb=8 9 9 DTR=01740 CA=1 TD=  duty=088     AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 DTC=01160 RD=o ss=1 XP=2 RF=018 DS=007 SN0376 14jun04 HF=005 JC=3 CB=3 MD=5 DF=05000 RNA=1 rev 3.0a cs=45306 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS7 east
SN0121 22jul05 rev 4.0s &=0 AC=1 AF=050 AH=1 AO=00300 ar=1 AQ= 60 BR=0 BX=0\r\n CF=1 C0o= 0 0 0 C0b= 0 0 0 CA=1 CD=0 cs=58153 DC=4 dl=015 DM=c DR=03465\r\n duty=087 DT=16240 ET= 60 FA=00050 FL=007 FX=038 GN=231a GO=00000 HA=0\r\n HG=01560 HH=02700 KT=0 LG=00832 LH=00100 MA=-020 MS=-010 MX=0 ND=1 NI=2\r\n ns=00203 OR=1 os=0 PD=2 RA=00020 RC=0 RF=00900 RH=015 RI=1 RS=1 RX=002 SD=0\r\n SL=035 SR=1 ss=1 T0123=1000 TD=a TF=02600 02600 02600 TK=1 TO= 0 0 0 TP=t\r\n ts=i UX=0 WM=o WR=006 XD=d xp=2 XX=00875 ZZ=0\

[aster@aster raw_data]$ rserial /dev/ttyS8 east
ET= 60 ts=i XD=d GN=333a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 011 ELb=010 010 008 TNo=466 d TNb=466 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 9 tlb=8 8 6  CA=1 TD=  duty=093  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN0800 14sep06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=22282 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS9 east
ET= 60 ts=i XD=d GN=545a TK=1 P=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=575 d TNb=585 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=094  AQ= 60 AC=1 CD=0 SR=1 X=0 MX=0 DT=02320 ss=1 XP=2 RF=018 DS=007 SN1121 26jun06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=52525 &=0 os= 

[aster@aster raw_data]$ rserial /dev/ttyS10 east
ET= 60 ts=i XD=d GN=432a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=1 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=8ac d TNb=7ac JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=094  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0539 03aug06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=14996 &=0 os=

[aster@aster raw_data]$ rserial /dev/ttyS11 east
ET= 60 ts=i XD=d GN=555a TK=1 UP=5 FK=0 RN=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1  AT=0 RS=1 BR=0 RI=1 GO=00000 HA=0 6X=3 3X=2 PD=2 SD=0 ?d tf=02600 02600 02600\r\nWM=o ar=0 ZZ=0 DC=1  ELo=010 010 010 ELb=010 010 010 TNo=655 d TNb=665 JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 8 8 tlb=8 8 8  CA=1 TD=  duty=095  AQ= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2 RF=018 DS=007 SN0247 20oct06 JC=3 CB=3  MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=51601 &=0 os= 

I measured the heights of sonics in narrow array by using a theodolite to
measure the elevation angles of the top and bottom of the vertical, 
'forward' face of the sonic 'box'.  The height of this face is ~4.33 cm.  
The theodolite was at a height of 1.82 m and 33.35 m in front of 
the sonic 'box'.  The sonics were at heights of 1.99 and 2.99 m 
above the ground.

At a distance of 33.35 m (sonics7b,7t), the elevation angles of the sonics 
above horizontal would be atan((1.99-1.82)/33.35) = 20 minutes and 
atan((2.99-1.82)/33.35) = 2 degs. 

3/31/07:  Note that the distance of the TRH is 
(33.35+1.08)/cos(Azimuth - Azimuth[7]) 

Data are Deg.min.sec

Sonic height = 1.82m + 33.35m*tan(90 - (bottom+top)/2)/cos(Azimuth-Azimuth[7])

Sonic	Bottom		Top		Azimuth		Height(m)
----------------------------------------------------------------
1b	89.46.37	89.43.12	280.48.50	1.972
2b	89.48.15	89.43.49	281.41.00	1.956
3b	89.49.50	89.45.23	282.33.29	1.940
4b	89.50.58	89.46.30	283.22.48	1.929
5b	89.52.10	89.47.44	284.17.40	1.918
6b	89.53.19	89.48.45	285.07.21	1.907
7b	89.54.07	89.49.40	285.57.45	1.899
8b	89.53.45	89.49.13	286.51.06	1.903
9b	89.53.03	89.48.29	287.42.47	1.910
TRH	89.45.38	89.15.34	290.37.46	1.964

1t	88.03.24	87.59.08	280.49.10	2.977
2t	88.04.29	88.00.06	281.40.35	2.966
3t	88.05.30	88.00.57	282.32.21	2.955
4t	88.06.16	88.01.49	283.23.50	2.947
5t	88.06.52	88.02.27	284.15.57	2.940
6t	88.07.15	88.02.45	285.08.52	2.936
7t	88.07.27	88.02.52	286.00.27	2.935
8t	88.06.39	88.02.12	286.52.39	2.942
9t	88.06.30	88.01.59	287.43.44	2.944
TRH	88.04.45	87.34.51	290.37.20	2.985	

Lowered horizontal array to sonics at 2.94 + 0.05 = 2.99 m and
1.94 + 0.05 = 1.99 m.  Started at 14:40 PDT, March 27, and finished at
14:50 PDT.

Calculated inventory of good wind directions for the median of 
the 9 upper sonics in each configuration.

For the 10 m, 0.5 m horizontal array spacing, we have 60 hours 15 minutes
of wind (continuous periods of 20 minutes or more) within +/- 30 degrees 
of south.  The longest period was more than 11 hours and there are 15
periods of an hour or more.

For the 5 m, 0.5 m horizontal array spacing, we have 43 hours 5 minutes 
of wind (continuous periods of 20 minutes or more) within +/- 30 degrees 
of south.  The longest period was almost 13 hours and there were 11 periods 
of an hour or more.

For the 2.5 m, 0.5 m horizontal array spacing, we have 11 hours 40 minutes 
of wind (continuous periods of 20 minutes or more) within +/- 30 degrees 
of south.  The longest period was over 3 hours and there are 4 periods 
of an hour or more.

For the 10 m, 1.72 m horizontal array spacing, we have 35 hours, 55 minutes 
of wind (continuous periods of 20 minutes or more) within +/- 30 degrees 
of south.  The longest period was almost 5 hours and there are 11 periods 
of an hour or more.

For the 5 m, 1.72 m horizontal array spacing, we have 46 hours, 40 minutes 
of wind (continuous periods of 20 minutes or more) within +/- 30 degrees 
of south.  The longest period was almost 6 hours and there are 16 periods 
of an hour or more.

For the 2.5 m, 1.72 m horizontal array spacing, we have 30 hours 55 minutes 
of wind (continuous periods of 20 minutes or more) within +/- 30 degrees 
of south.  The longest period was almost 3 hours and there are 10 periods 
of an hour or more.

For the 10 m, 1.72 m horizontal array spacing during the interim phase, we 
have 196 hours, 55 minutes of wind (continuous periods of 20 minutes or more) 
within +/- 30 degrees of south.  The longest period was over 11 hours and there
are 53 periods of an hour or more.

For the 10 m, 1.72 m horizontal array spacing during the second phase, we
have 90 hours, 10 minutes of wind (continuous periods of 20 minutes or more)
within +/- 30 degrees of south.  The longest period was almost 12 hours and 
there are 12 periods of an hour or more.

For the 5 m, 1.72 m horizontal array spacing during PhII, we have 49 hours,
25 minutes of good wind directions. The longest period was 10 hours and 
there are 6 periods of an hour or more.

For the 2.5 m, 1.72 m horizontal array spacing during PhII, we have 23 hours,
15 minutes of good wind directions.  The longest period was over 4 hours
and there are 6 periods of an hour or more.

For the 10 m, 0.5 m horizontal array spacing during PhII, we have 57 hours,
20 minutes of good wind directions.  The longest period was over 14 hours
and there are 8 periods of an hour or more.

For the 5 m, 0.5 m horizontal array spacing during PhII, we have 49 hours,
5 minutes of good wind directions.  The longest period was over 8 hours
and there are 8 periods of an hour or more.

Late Saturday afternoon, Mar 24, I removed S/N 0740 sonic from the vertical 
tower.  It had been at ~2 m but not plugged into the data system.

Heights of sonics on horizontal array
Sonic spacing = 0.5 m

2007 3 13 10:45	PDT	9.65	10.65
2007 3 22 11:40	PDT	0.0	0.0	(lowering)
2007 3 22 12:56	PDT	1.5	2.5	(estimated)
2007 3 22 15:20	PDT	0.0	0.0	(raising)
2007 3 22 16:05	PDT	9.65	10.65
2007 3 23 15:05	PDT	0.0	0.0	(lowering)
2007 3 23 15:35	PDT	4.94	5.94
2007 3 27 14:40 PDT	0.0	0.0	(lowering)
2007 3 27 14:50 PDT	2.99	3.99	
2007 3 31 10:00 PDT	0.0	0.0	(reconfiguring & raising)

Sonic spacing = 1.72 m

2007 3 31 20:00 PDT	9.65	10.65	
2007 4  4 10:55 PDT	0.0	0.0	(lowering)
2007 4  4 17:15 PDT	4.94	5.94
2007 4  6 15:30 PDT     0.0     0.0     (lowering to remove hfs [spraying])
2007 4  6 17:00 PDT     4.94    5.94
2007 4  8 14:30 PDT     0.0	0.0	(lowering and hfs reinstalled)
2007 4  8 17:25 PDT     2.0     3.0     
2007 4 15 12:30 PDT	0.0	0.0	(raising array)
2007 4 15 17:10 PDT	9.65	10.65	
2007 5 10 15:10 PDT     0.0     0.0     (lowering activity - Phase II cleaning) 
2007 5 10 18:30 PDT     9.66    10.66   (upper position)
2007 5 17 09:09 PDT     0.0      0.0
2007 5 17 13:47 PDT     4.95     5.95   (middle position)
2007 5 23 16:30 PDT     0.0      0.0    (hot films taken out before spraying)
2007 5 23 18:30 PDT     4.95     5.95   (middle position)
2007 5 25 15:50 PDT     0.0      0.0    (begin moving to low-wide)
2007 5 25 19:05 PDT     3.00     2.00  (5cm added to sonic booms on west array
                                        see logbook entry 291)

Sonic spacing = 0.5 m

2007 5 29  9:09 PDT	0.0	0.0	Changing sonic spacing and raising array
2007 5 29 16:50 PDT	9.66	10.66
2007 6  2  9:10 PDT	0.0	0.0	Lowering array
2007 6  2 10:15 PDT	4.94	5.94	
2007 6  6  9:15 PDT	0.0	0.0	Lowering array
2007 6  6 10:00 PDT	2.99	3.99	

Lowered horizontal array to mid-canopy, with sonics at heights of
4.89 + 0.05 m = 4.94 m and 5.89 + 0.05 m = 5.94 m.

Started lowering at 3:05 PDT and finished at 3:35 PDT

Replaced sonic 9b, S/N 0856, with S/N 121.
Removed temporary cable for sonic 9b used to test whether cable was
causing dropped sample.

Lowered horizontal array in order to replace sonic 9b and to mount the eight
outer sonic boxes on the backs of the the horizontal ASTER towers.
Formerly they were on the upper south faces.

Started lowering at 11:40 PDT, finished at 12:56
Started raising at 15:20 PDT, finished at 16:05.

This morning, we replaced sonic 0740 at 6 m on vertical tower with sonic 0119.
Moved sonic 0740 to TRH boom at 1.70 m + 32 cm.  Thus sonic is at a 
height  of 1.70 m + 32 cm + 5 cm = 2.07 m.

Plugged sonic 0740 into 1.5 m serial port, lower ttyS1.

17:55: plugged 1.5 m sonic, S/N 0673, back into lower ttyS1.

3/23:  From missing kh2o data at 1.5m, I see that sonic 0740 was 
       on ttyS1 from 11:20 - 17:55 PDT

I talked  with Larry Jacobsen at CSI about sonic sampling problem.   It appears
that the sonic just can't keep up with 60 Hz.  It does not miss samples at
30 Hz and Larry speculates that we might fix this by narrowing the time window
whithin which the sonic looks for the received signal (my interpretation of
what he told me).  The way to narrow the window is to decrease the DC
parameter to 0, which is by default 1 for 60 Hz, using the terminal command
'dc -' (dc + increments DC).  Note that the default DC parameter is larger for
slower sampling rates.

So far I have been unsuccessful reducing the DC parameter for sonic 9b while
it is misbehaving.  I could presumably do it  for sonic 6m because it was
behaving at the time.

In the process, I did not get the sonic going again until 18:12.

I did not restart sonic 9b when I was trying to dump the configuration this
morning.  I just restarted it Mar 21 at 14:43 PDT.

Note this sonic is S/N 0856, calibrated 28 June 2006.

Changed 6m sonic data output rate to 10 Hz to try to fix.  Short data dump
suggests better behavior.  Switched back to 60 Hz and data bad again.

Did this test between 1300 and 1330.

Steve and I replaced the serial cable for sonic 9b around 9:30 PDT, Tuesday,
March 20.  Sonic 9b is still dropping samples.

3/21:  This did not solve the missing sample problem.

We (Steve S, Ned Patton, Tom) installed another sonic at 12.5 m on the
vertical tower.  S/N 0743, 12.17+0.05+0.32 = 12.54m

Swapped 4.5 m (ttyS5) and 6 m (S6) sonics on lower adam at 10:39 PDT.  
So far the undersampling error has not re-occured.

Swapped cables back at 12:08 PDT

Swapped sonics 8b (ttyS6) and 9b (S7) on east adam at 10:34 PDT.  
The under-sampling error followed the sonic (and cable).

Swapped cables back at 12:03 PDT

30 m tower heights 
Heights are (m agl) to top of boom - 32 cm.
Note sonic is 5 cm above boom and TRH inlet is 47 cm below boom.

Port	Location	S/N	Height	Height(AGL)	Height	Height(AGL)
			Sonic		(+37 cm)	TRH	(-15 cm)
--------------------------------------------------------------------------
S10,up	29 m		0744	28.66	29.03		28.66	28.51
S9, up	23 m		1117	22.70	23.07		22.70	22.55
S8, up	18 m		0738	17.67	18.04		17.67	17.52
S7, up	14 m		1123	13.72	14.09		13.72	13.57
S17, up	12.5m		0743	12.17	12.54	(3/19/07)
S6, up	11 m		0364	10.76	11.13		11.27	11.12
S5, up	10 m		0671	9.66	10.03		10.19	10.04
S2, up	9 m		0536	8.65	9.02		9.19	9.04
S7, lo	7.5 m		0540	7.25	7.62		7.80	7.65
S6, lo	6 m		0740	5.70	6.07		6.22	6.07
S5, lo	4.5 m		1120	4.17	4.54		4.69	4.54
S2, lo	3 m		0674	2.74	3.11		3.26	3.11
S1, lo	1.5 m		0673	1.17	1.54		1.70	1.55

The diagnostic variable from sonic 9b is above 25 for several hours at a time.
Gordon notes that this indicates the 5th bit is set, which occurs when
the sonic counter increments by more than 1 between recieved samples.

The U component on sonic 8b appears to be perhaps 10 cm/s too low.  However the second moments look okay, e.g. , , etc.

Port	West Array 		East Array
	Data System 10		Data System 13
		Sonic	KH2O		Sonic	KH2O
-------------------------------------------------------------------
S1	1b	0367		5b	0366
S2	2b	0672		6b 	0378
S3	GPS			GPS
S
S5	3b	0855		7b	0677
S6	4b	0538		8b	0376
S7	1t	0377		9b	0856
S8	2t	0853		6t	0800	1391
S9	3t	0537	1133	7t	1121	1258
S10	4t	1124	1392	8t	0539
S11	5t	1119	1389	9t	0247

We began collecting data from the horizontal array yesterday afternoon using 
12 V batteries to power the system, since we are waiting for power cable to 
install AC power.  The main purpose was to collect data to see how 
things are working.

Around 4-5 pm PDT we raised the array to 10 m.  It is in the narrow 
configuration with a sonic spacing of 50 cm.  The tops of the sonic booms
are at 10.6 m and 9.6 m.  The sonics are numbered 1-9 from west to east.

3/16/07
The sonics themselves are at 9.65 m and 10.65 m.

3/26/07
Note that the small horizontal array spans one row opening.  Every year,
the orchardists trim (hedge) every third row.  The location of the small
horizontal array was trimmed two years ago, so is one of the densest row
openings.  The wide array will span two rows, one trimmed last year (east) 
and the other trimmed two years ago (west).

3/27/07
Discovered today that the 7th sonic from the west is at the mid-point
between tree rows.  Trees immediately south of the west array are 7.36 m apart.