Entry
| Date
| Title
| Site
| Author
| #Graphics
|
75 | Mon 24-Mar-2008 | PAM tripod heights | marshall | horst
|
74 | Mon 24-Mar-2008 | swapped pocketecs, march 24 | marshall | horst
|
73 | Wed 19-Mar-2008 | North Sonic to 7.8m; NEW ANGLES | marshall | golubieski
|
72 | Tue 18-Mar-2008 | Pocketec DEAD | marshall | golubieski
|
71 | Tue 18-Mar-2008 | 4-comp to N. sonic angles. | marshall | golubieski
|
70 | Wed 12-Mar-2008 | Whole array is up! New Rad Angle | marshall | golubieski
|
69 | Wed 12-Mar-2008 | Rad test at Marshall | marshall | semmer
|
68 | Wed 12-Mar-2008 | swapped pocketecs | marshall | horst
|
67 | Thu 06-Mar-2008 | Masts and sonics completed....kinda | marshall | golubieski
|
66 | Tue 04-Mar-2008 | 10 PAMs w/ 3 sonics; NEW ANGLES | |
|
65 | Tue 04-Mar-2008 | Began new array arrangement | marshall | golubieski
|
64 | Tue 26-Feb-2008 | New Angles | marshall | golubieski
|
63 | Mon 25-Feb-2008 | swapped pocketecs Feb 25 | marshall | horst
|
62 | Mon 25-Feb-2008 | swapped pocketecs Feb 22 | marshall | horst
|
61 | Wed 20-Feb-2008 | Pickle Fork; NEW ANGLES | marshall | golubieski
|
60 | Mon 18-Feb-2008 | swapped pocketecs | marshall | horst
|
59 | Mon 11-Feb-2008 | swapped pocketecs | marshall | horst
|
58 | Fri 08-Feb-2008 | North PAM moved back to 10.4m | marshall | golubieski
|
57 | Wed 06-Feb-2008 | swapped pocketec | marshall | horst
|
56 | Mon 28-Jan-2008 | Oncley Array DOWN!!!!! | marshall | golubieski
|
55 | Tue 22-Jan-2008 | North PAM moved to 7.8m; NEW ANGLES | marshall | golubieski
|
54 | Wed 16-Jan-2008 | Reference Sonic Lowered | marshall | golubieski
|
53 | Tue 15-Jan-2008 | Data Visit | marshall | golubieski
|
52 | Tue 08-Jan-2008 | Oncley Array lowered; New Angles | marshall | golubieski
|
51 | Tue 08-Jan-2008 | Windy Day for Non-gussets...more angles | marshall |
|
50 | Fri 04-Jan-2008 | 3m PAM Array is a GO! New Angles | marshall | golubieski
|
49 | Thu 03-Jan-2008 | PAM array up at 4.5m | marshall | golubieski
|
48 | Thu 03-Jan-2008 | Swapped pocketecs, Jan 3 | marshall | horst
|
47 | Thu 20-Dec-2007 | PAM array kinda up but running | marshall | golubieski
|
46 | Tue 18-Dec-2007 | Removed south sonic | marshall | horst
|
45 | Mon 17-Dec-2007 | Swapped pocketecs 12/17/07 | marshall | horst
|
44 | Wed 12-Dec-2007 | Swapped pocketecs 12/12/07 | marshall | horst
|
43 | Wed 05-Dec-2007 | Sonic azimuths | marshall | horst
|
42 | Wed 05-Dec-2007 | Swapped pocketecs 12/5/07 | marshall | horst
|
41 | Mon 03-Dec-2007 | Reconfigured array 11/30/07 | marshall | horst
|
40 | Thu 29-Nov-2007 | end of good data due to loss of power | marshall | horst
|
39 | Wed 28-Nov-2007 | azimuth angles of Oncley advection array | marshall | horst
|
38 | Wed 28-Nov-2007 | Replaced west.3.6m sonic; reconfigured sonics to 20 Hz | marshall | horst
|
37 | Wed 28-Nov-2007 | Fixed solar power and plugged ADAM into line power on Nov 27 | marshall | horst
|
36 | Tue 27-Nov-2007 | Copied raw data files to mass store | marshall | maclean
|
35 | Mon 26-Nov-2007 | Station stopped; swapped pocketecs | marshall | horst
|
34 | Wed 21-Nov-2007 | Result of sonic swap: S/N 853 missing samples | marshall | horst
|
33 | Wed 21-Nov-2007 | Replaced batteries | marshall | horst
|
32 | Wed 21-Nov-2007 | swapped pocktecs 11/21/07 | marshall | horst
|
31 | Tue 20-Nov-2007 | swapped southw1m and west sonics | marshall | horst
|
30 | Tue 20-Nov-2007 | south1mw sonic still missing samples | marshall | horst
|
29 | Tue 20-Nov-2007 | Swapped pocketecs 11/20/07 | marshall | horst
|
28 | Tue 20-Nov-2007 | Adjusted sonic position and tested data output | marshall | horst
|
27 | Tue 20-Nov-2007 | Restored power to Marshall site | marshall | horst
|
26 | Mon 19-Nov-2007 | Coordinate system for down-pointing sonics | marshall | maclean
|
25 | Mon 19-Nov-2007 | Sonic azimuths | marshall | horst
|
24 | Mon 19-Nov-2007 | bad sonic data from southw1m | marshall | maclean
|
23 | Mon 19-Nov-2007 | Data system stopped | marshall | horst
|
22 | Fri 16-Nov-2007 | sonic eeprom dumps | marshall | maclean
|
21 | Thu 15-Nov-2007 | Swapped pocketec 11/15/07 | marshall | horst
|
20 | Tue 13-Nov-2007 | Oncley advection array | marshall | horst
|
19 | Mon 12-Nov-2007 | Swapped pocketec 11/12/07 | marshall | horst
|
18 | Tue 06-Nov-2007 | csat cal files for Marshall field test | marshall | horst
|
17 | Mon 05-Nov-2007 | Lost data 10/29 - 11/2; pocketec swapped 11/6 | marshall | horst
|
16 | Fri 02-Nov-2007 | Swapped pocketec Nov 2 | marshall | horst
|
15 | Fri 02-Nov-2007 | Moved north sonics to 4 and 8 m | marshall | horst
|
14 | Mon 29-Oct-2007 | Swapped pocketecs Oct 29 | marshall | horst
|
13 | Thu 25-Oct-2007 | Array dimensions | marshall | horst
|
12 | Thu 25-Oct-2007 | Modifications to Marshall array | marshall | horst
|
11 | Mon 22-Oct-2007 | Pocketec swapped Oct 22 | marshall | horst
|
10 | Mon 22-Oct-2007 | High winds at Marshall | marshall | horst
|
9 | Mon 22-Oct-2007 | Rain Oct 13-15 | marshall | horst
|
8 | Thu 18-Oct-2007 | Removed upper horizontal ASTER tower section | marshall | horst
|
7 | Thu 18-Oct-2007 | Added yokes to horizontal array | marshall | horst
|
6 | Tue 16-Oct-2007 | Pocketec swapped Oct 11 and 16 | marshall | horst
|
5 | Tue 16-Oct-2007 | replaced bad sonic cable | marshall | horst
|
4 | Tue 16-Oct-2007 | Replaced yoke for south sonic | marshall | horst
|
3 | Tue 16-Oct-2007 | sonic azimuths | marshall | horst
|
2 | Tue 16-Oct-2007 | Marshall advection test | marshall | horst
|
1 | Mon 08-Oct-2007 | Logbook created | none | maclean
|
- 75: LOG, Site marshall, Mon 24-Mar-2008 10:08:33 MDT, PAM tripod heights
Measured heights of PAM tripods to determine variation in heights due
to interlacing them for the 1.3m separation. Heights are measured from
the ground to the tops of the horizontal braces:
26 inches
28.25
27.5
32.25
30
34.5
26.25
26
26.75
Thus the range in heights is 26 - 34.5 inches or a variation of 8.5
inches = 21.6 cm.
- 74: data, Site marshall, Mon 24-Mar-2008 10:06:40 MDT, swapped pocketecs, march 24
Swapped pocktecs, 09:14 MDT, March 24, 2008.
- 73: status, Site marshall, Wed 19-Mar-2008 12:11:45 MDT, North Sonic to 7.8m; NEW ANGLES
March 19, 2008
11:03 - 11:20am MDST
Kurt and Chris moved the North PAM tripod to 7.8m behind PAM array. New angles follow.
North Sonic - 350.2 deg
West PAM to North Sonic - 30.4
East PAM to North Sonic - 307.7
4comp to North Sonic - 303.2
4comp to Ref. Sonic - 302.3
No Pocketec switch.
- 72: status, Site marshall, Tue 18-Mar-2008 11:06:22 MDT, Pocketec DEAD
March 18, 2007
Pocketec DEAD!!!!!!! No data was transferred to Porter.
- 71: status, Site marshall, Tue 18-Mar-2008 11:02:56 MDT, 4-comp to N. sonic angles.
March 17, 2008
6:02 - 6:16 pm MDST
Switched pocketecs!
Took angle from 4-comp. to the North Sonic.
308.2 deg.
- 70: status, Site marshall, Wed 12-Mar-2008 16:26:20 MDT, Whole array is up! New Rad Angle
March 11, 2008
2:40 - 3:52 MDST
Replaced boom mount that was taken last visit. Whole array is up and looking
smooth.
The new radiation stand is at an angle from central sonic to four-comp:
298.0 deg.
Pocketec was not switched.
- 69: LOG, Site marshall, Wed 12-Mar-2008 12:34:39 MDT, Rad test at Marshall
A darkhorse was setup out at Marshall to test the Q7 sensors used in METCRAX.
The horse is ~30ft due south of the horizontal array.
Radiation sensors used...
East-Q94190, West-97034, Central-99258
- 68: data, Site marshall, Wed 12-Mar-2008 11:04:14 MDT, swapped pocketecs
Swapped pocketecs at 9:29 MDT, March 12.
- 67: status, Site marshall, Thu 06-Mar-2008 08:23:10 MST, Masts and sonics completed....kinda
March 5, 2008
5:15 - 5:45pm MST
I added booms to the East and West PAM masts. Unfortunately, I had to remove a clamp towards the middle of the array so I took the West's boom/clamp/plate to
replace it. So NO clamp/boom/plate on West mast.
Put all sonics to 60 Hz. I confused myself and check and noticed I didn't have
sonics at a high rate. All is good!
I had to take boom clamp for the shop to re-create it for the project. Will see how long they will have this clamp to decide on if I should replace with
another style of clamp.
- 66: , Site , Tue 04-Mar-2008 15:12:10 MST, 10 PAMs w/ 3 sonics; NEW ANGLES
March 4, 2008
11:45 - 12:45pm MST
Kurt and Chris put the rest of the PAM masts up and had all but two of
the booms mounted ( two w/o are on the East and West ends). Picklefork is
down and stored in the yard at Marshall. Switched Pocketecs. I [think]
put all sonics at 20hz.
Angles:
East PAM to North sonic = 317.7 deg
Center sonics heading = 350.3 deg
West PAM to North sonic = 27.3 deg
- 65: status, Site marshall, Tue 04-Mar-2008 08:07:54 MST, Began new array arrangement
February 29, 2008
3:00 - 4:20 pm MST
Kurt and Chris began setting up the new array for Dr. Horst. Four new PAM
tripods and mast have been set up and staked. We need to put booms and remove
pickle fork for it to complete.
- 64: sonic, Site marshall, Tue 26-Feb-2008 08:37:36 MST, New Angles
February 25, 2008
4:10 - 4:30pm MST
Chris re-shot angles on the picklefork. The two new sonics were put in a 20 hz mode.
Cenral sonic heading = 355.4 deg
East pickle fork to N. sonic = 345.1 deg
West pickle fork to N. sonic = 2.6 deg
- 63: data, Site marshall, Mon 25-Feb-2008 09:24:36 MST, swapped pocketecs Feb 25
Swapped pocketecs, 8:52 MST, Monday, Feb 25
- 62: data, Site marshall, Mon 25-Feb-2008 09:23:46 MST, swapped pocketecs Feb 22
Swapped pocketecs 9:09 MST, Friday, Feb 22
- 61: sonic, Site marshall, Wed 20-Feb-2008 15:10:37 MST, Pickle Fork; NEW ANGLES
February 20, 2008
11:30 - 12:45pm MST
Kurt and Chris have added the pickle fork to the PAM array. Installed
pickle fork on the middle PAM tripod. Added two sonics 1120 (East/ttyS9)
and 800 (West ttyS6) to the fork. We also removed the two adjacent PAM
masts to the fork. Lowered the reference sonic to 3.1m. Fork angles
follow...
East fork to North = 348.7
Central = 3.7
West fork to North = 256.6
Reference = 352.2
Also moved ADAM to the reference Aster tower.
No pocketec.
- 60: data, Site marshall, Mon 18-Feb-2008 12:38:07 MST, swapped pocketecs
Swapped pocketecs around 12:03 MST, February 18.
- 59: data, Site marshall, Mon 11-Feb-2008 09:50:22 MST, swapped pocketecs
Swapped pocketecs 09:13 MST, Feb 11.
- 58: sonic, Site marshall, Fri 08-Feb-2008 15:17:38 MST, North PAM moved back to 10.4m
February 8, 2008
11:15 - 11:23am MST
Kurt and Chris moved the North sonic/PAM tripod back to 10.4m from the array. New angles follow...
North Sonic - 350.6 deg
East PAM to N. Sonic - 331.2 deg
West PAM to N. Sonic - 005.9 deg
Pocketec was NOT exchanged.
- 57: data, Site marshall, Wed 06-Feb-2008 09:18:13 MST, swapped pocketec
Swapped pocketek usb disk at 8:43 am, Feb 6.
- 56: status, Site marshall, Mon 28-Jan-2008 17:25:11 MST, Oncley Array DOWN!!!!!
January 28, 2008
11:48am - 12:22pm MST
Kurt and Chris took down Oncley's Array. Middle sonic was hooked on the East sonic on arrival. Whole array was in bad shape. Winds were high enough to move booms out of alignment, even with the emt pipe for support. Kurt noticed bolts on all-thread were loose on East and Middle sonics. All sonics were tight in the sonic head.
PAM Array was fixed (West tower was on it's side and in the array). We re-aligned and staked down all the towers.
No new angles were shot. All cords were unplugged and brought back with sonics.
- 55: sonic, Site marshall, Tue 22-Jan-2008 15:43:36 MST, North PAM moved to 7.8m; NEW ANGLES
January 22, 2008
2:26 - 2:52pm MST
Tom and Chris moved North PAM array sonic to 7.8m from the South array.
Prior distance was at 5.2m.
E end of PAM array to N. sonic = 325.5 deg.
West end of PAM array to N. sonic = 016.2 deg.
Azimuth of North sonic = 351.3 deg.
Swapped Pocktecs.
- 54: sonic, Site marshall, Wed 16-Jan-2008 08:45:04 MST, Reference Sonic Lowered
January 15, 2008
4:50 - 5:05pm MST
Tom and Chris lowered the West sonic (Reference Sonic) to match the Oncely Array. Height of sonics is 3.85m. New angle of sonic is 347.3 deg.
- 53: data, Site marshall, Tue 15-Jan-2008 12:51:25 MST, Data Visit
January 15, 2008
11:45 - 12:15pm MST
Chris switched out Pocketecs.
- 52: sonic, Site marshall, Tue 08-Jan-2008 17:32:29 MST, Oncley Array lowered; New Angles
January 8, 2008
2:40 - 3:30pm MST
Kurt and Chris lowered the sonics on the "Oncley Array." They were
lowered with all-thread and to a length of 70cm. Added a EMT pipe to
join all three South booms together. Recommend putting a pipe on sonic
heads...way unstable. New angles follow:
North Sonic = 339.4 deg
SouthEast = 353.1 deg
Southcentral = 349.5 deg
SouthWest = 338.0
Pocketec switched.
- 51: sonic, Site marshall, Tue 08-Jan-2008 08:55:13 MST, Windy Day for Non-gussets...more angles
January 5, 2008
11:55 - 12:09pm MST
Kurt and Chris could not lower "Oncley's Array" due to high winds.
They replaced the mast on the East PAM tower to a non-gusseted one.
Now all booms are nearly the same height. Shot angles from East/West
tower back to South sonic.
East - Sonic = 225.4 deg
West - Sonic = 117.6 deg
- 50: status, Site marshall, Fri 04-Jan-2008 08:43:04 MST, 3m PAM Array is a GO! New Angles
January 3, 2008
4:25 - 5:16pm MST
Angles of sonics (4.5m)
Sonic in the PAM Array 349.0 deg
Sonic behind array 352.3 deg
Angles of sonics (3m)
Sonic in the PAM Array 351.5 deg
Sonic behind array 352.2 deg
All heights are around 3.1m. The PAM that is East on the array is
at 3.4m. This is due to the gussets on the mast. I have also measured
the angles from each PAM mast to the back/North sonic. Measuring from
East tripod to West back to North sonic.
5m: 310.7 326.3 349.0 12.1 30.6
3m: 314.4 327.1 349.7 12.3 28.6
- 49: status, Site marshall, Thu 03-Jan-2008 11:54:19 MST, PAM array up at 4.5m
December 21, 2007
3:45 - 4:45 pm MST
Steve S. and Chris put up the remaining mast on the PAM tripods with
the booms mounted at 4.5m.
- 48: data, Site marshall, Thu 03-Jan-2008 11:45:04 MST, Swapped pocketecs, Jan 3
Swapped pocketecs around 9:10 am, January 3.
- 47: status, Site marshall, Thu 20-Dec-2007 17:09:19 MST, PAM array kinda up but running
December 20, 2007: 3:00pm - 4:30pm MST
Kurt and Chris set up five PAM tripods with the center holding the 8m
sonic from other array. The North sonic is the same 16m sonic from
other array. Sonics have been kept plugged into their same ports.
The whole PAM array is not finished. All tripods have been set but
masts are not in place. Sonics are in their positions but not at 3m,
they are still at the 4.5m.
Nothing was done to the "Oncley Array."
- 46: sonic, Site marshall, Tue 18-Dec-2007 15:00:33 MST, Removed south sonic
Chris and Steve Oncley removed the south sonic from the horizontal array
from 2:00-2:15 pm, 12/18/07.
- 45: data, Site marshall, Mon 17-Dec-2007 09:49:54 MST, Swapped pocketecs 12/17/07
Swapped pocketecs around 9:06 am, 12/17/07
- 44: data, Site marshall, Wed 12-Dec-2007 10:26:44 MST, Swapped pocketecs 12/12/07
Swapped pocketecs around 9:34 am, 12/12/07.
Sonics were free of snow or ice. Solar panels were covered with snow and ice;
cleaned them as best I could.
- 43: sonic, Site marshall, Wed 05-Dec-2007 15:33:10 MST, Sonic azimuths
Arrived Marshall 11:51 MST; departed around 12:55 MST
Calibrated datascope after replacing batteries.
Grade was 'good 7'
Declination = 0.0 degrees
Sonic Magnetic True (+9.5 deg)
West 346.0, 345.5 355.5, 355.0
South 346.0, 347.7 355.5, 357.2
North8m 346.8, 346.6 356.3, 356.1
North16m 346.6, 346.7 356.1, 356.2
In the revised Oncley array, the SouthE, SouthW and NorthM sonics have
twisted to the east, presumably due to the recent strong west winds.
The SouthM sonic appeared to have maintained its orientation. The
current azimuths are:
South_E 325.5, 325.6 335.0, 335.1
South_M 347.2, 347.6 356.7, 357.1
South_W 342.7, 342.8 352.2, 352.3
North_M 329.2, 329.0 338.7, 338.5
Ends of Horizontal Array and SPO array to north sonics
HA_e to N8m 336.0 345.5
HA_e to N16m 335.5 345.0
HA_w to N8m 012.1 021.6
NA_w to N16m 355.7 005.2
SPO_e t0 N8m 001.6 011.1
SPO_e to N16m 350.9 000.4
From 14:45 - 15:45 MST, Steve Semmer re-aligned the SPO array sonics.
He also added a wooden brace between the South_w and South_m sonic booms
to hold the South_w boom parallel to the South_m boom.
New Azimuths:
South_E 345.6 355.1
South_M 348.5 358.0
South_W 349.4 358.9
North_M 348.5 358.0
- 42: data, Site marshall, Wed 05-Dec-2007 15:31:54 MST, Swapped pocketecs 12/5/07
Swapped pocketecs 12/5/07 at 11:55 am MST.
- 41: sonic, Site marshall, Mon 03-Dec-2007 15:54:41 MST, Reconfigured array 11/30/07
Chris, Kurt and Tom went to Marshall on the afternoon of 11/30/07 to
revise the sonic array. Arrived on site at 14:00 MST.
We Moved the south12m sonic to 16m north of the horizontal array.
Remounted the Oncley advection array sonics from a facing-downward
orientation to an upside down orientation. Thus measured W = -W and
measured V = -V for the normally-oriented sonics. The measurement
volume of the downward-facing sonics were 35 1/2" below the top of the
sonic boom, which itself is mounted on the underside of the horizontal
aster tower. In the new, upside-down orientation the sonic measurement
volume is 21 1/2" below the top of the sonic boom.
In the new orientation, the Oncley array sonics are 4.05 m above ground
level, so we moved the west sonic up to 4.05 m.
We removed the west.1.m sonic; S/N 853. It ran okay at 20 Hz.
We left the site at 15:30 MST.
- 40: data, Site marshall, Thu 29-Nov-2007 14:27:31 MST, end of good data due to loss of power
The data from all sonics started dropping out sometime after 11/24/07
00:00 GMT:
> data_stats marshall_20071124_000000.dat
dsm sampid nsamps |------- start -------| |------ end -----| rate
1 30 87120 2007 11 24 00:00:00.342 11 24 11:59:59.429 2.02
minMaxDT(sec) minMaxLen
0.090 1.568 48 73
1 150 2565157 2007 11 24 00:00:00.068 11 24 11:59:59.985 59.38
-0.002 0.388 12 21
1 160 2489963 2007 11 24 00:00:00.008 11 24 11:31:53.335 59.98
0.000 1.068 14 22
1 170 2472990 2007 11 24 00:00:00.000 11 24 11:29:30.055 59.78
0.000 2.472 14 31
1 200 2591918 2007 11 24 00:00:00.007 11 24 11:59:59.985 60.00
0.001 0.069 12 12
1 210 2499132 2007 11 24 00:00:00.005 11 24 11:38:51.205 59.60
0.000 75.610 14 8192
1 220 2501061 2007 11 24 00:00:00.000 11 24 11:35:19.044 59.95
0.000 2.292 14 213
1 230 2538371 2007 11 24 00:00:00.007 11 24 11:45:10.039 59.99
-0.004 2.070 14 8192
1 240 2457721 2007 11 24 00:00:00.290 11 24 11:59:59.995 56.89
0.000 0.381 12 21
The number of samples in 12 hours should be 2,592,000. The smallest
number of (60 Hz) samples is 2,472,990, so the dropouts started around
perhaps 11:26:56 GMT 11/24/07 or 04:26:56 MST.
- 39: sonic, Site marshall, Wed 28-Nov-2007 14:01:11 MST, azimuth angles of Oncley advection array
On 11/27/07, Chris and Kurt measured the angles between the Oncley
advection array sonics:
Southwest to North = 0.1 deg (9.6 deg True)
SouthEast to North = 338.0 deg (347.5 True)
- 38: sonic, Site marshall, Wed 28-Nov-2007 13:00:21 MST, Replaced west.3.6m sonic; reconfigured sonics to 20 Hz
On 11/27/07, Chris and Kurt replaced the 3.6m west sonic with S/N 0537 and
reconfigured all sonics to run at 20 Hz (not oversampled). Thus, we are
currently running nine sonics at 20 Hz. The reason for the additional
sonic is that they decided to see if the former west sonic is okay at
20 Hz. So it is in port 11 (west.1.m) and also running at 20 Hz.
All this was done from 1130 - 1310.
- 37: LOG, Site marshall, Wed 28-Nov-2007 12:45:46 MST, Fixed solar power and plugged ADAM into line power on Nov 27
Kurt and Chris went out to Marshall yesterday (11/27/07) and found
the problem with the power. It was the cable from the panels to the
batteries...it was pulled out. They decided to keep that system up and
running and check to see if it will charge the batteries, BUT plugged in
the ADAM to line power.
All this was done from 1130 - 1310. They did not change the pocket-tecs.
- 36: data, Site marshall, Tue 27-Nov-2007 10:46:53 MST, Copied raw data files to mass store
The marshall raw_data files from the beginning of the test (Oct 9)
up to now (Nov 25) have been copied to the mass store:
/ATD/DATA/2007/AHATS/isff/raw_data
- 35: data, Site marshall, Mon 26-Nov-2007 10:25:33 MST, Station stopped; swapped pocketecs
Stopped at the station this morning at 9:00 and station was not running.
Swapped pocketecs.
- 34: sonic, Site marshall, Wed 21-Nov-2007 15:05:34 MST, Result of sonic swap: S/N 853 missing samples
I ran data_stats on data since the southw1m sonic was swapped with the
west sonic around 15:00 MST 11/20/07 (22:00 GMT 11/20/07). The problem
has now followed the sonic (853) to the west location (sampid 240) and
the south1m sonic (538) is now okay (sampid 200). The conclusion is
that the adjacent sonics are not interferring with one another, but that
perhaps S/N 853 now has a problem running at 60 Hz. Next week we will
try reducing its sampling rate to 20 Hz.
:porter.atd.ucar.edu:raw_data: data_stats marshall_20071121_000000.dat
2007-11-21,14:56:23|INFO|opening: marshall_20071121_000000.dat
EOFException: marshall_20071121_000000.dat: open: EOF
sensor dsm sampid nsamps |------- start -------| |------ end -----|
1 30 87120 2007 11 21 00:00:00.405 11 21 11:59:59.532
rate minMaxDT(sec) minMaxLen
2.02 0.099 1.578 48 73
1 150 2563473 2007 11 21 00:00:00.007 11 21 11:59:59.996
59.34 -0.002 0.388 12 21
1 160 2591875 2007 11 21 00:00:00.000 11 21 11:59:59.980
60.00 -0.010 0.337 14 22
1 170 2591900 2007 11 21 00:00:00.009 11 21 11:59:59.993
60.00 -0.015 0.334 14 22
1 200 2591939 2007 11 21 00:00:00.009 11 21 11:59:59.986
60.00 -0.006 0.074 12 12
1 210 2591962 2007 11 21 00:00:00.004 11 21 11:59:59.987
60.00 0.000 0.060 14 14
1 220 2591863 2007 11 21 00:00:00.036 11 21 11:59:59.969
60.00 0.000 0.299 14 22
1 230 2592010 2007 11 20 23:59:59.995 11 21 11:59:59.995
60.00 0.000 0.052 14 14
1 240 2474732 2007 11 21 00:00:00.074 11 21 11:59:59.997
57.29 0.001 0.380 12 21
:porter.atd.ucar.edu:raw_data: data_stats marshall_20071121_120000.dat
2007-11-21,14:57:53|INFO|opening: marshall_20071121_120000.dat
EOFException: marshall_20071121_120000.dat: open: EOF
sensor dsm sampid nsamps |------- start -------| |------ end -----|
rate minMaxDT(sec) minMaxLen
1 30 62600 2007 11 21 12:00:00.581 11 21 20:37:20.545
2.02 0.038 1.568 49 73
1 150 1852523 2007 11 21 12:00:00.069 11 21 20:37:20.829
59.68 -0.002 0.388 12 21
1 160 1862423 2007 11 21 11:59:59.998 11 21 20:37:20.823
60.00 0.000 0.060 14 14
1 170 1862414 2007 11 21 12:00:00.011 11 21 20:37:20.828
60.00 -0.013 0.056 14 14
1 200 1862407 2007 11 21 12:00:00.006 11 21 20:37:20.840
60.00 -0.007 0.077 12 12
1 210 1862423 2007 11 21 12:00:00.005 11 21 20:37:20.831
60.00 -0.014 0.065 14 14
1 220 1862291 2007 11 21 11:59:59.986 11 21 20:37:20.838
59.99 0.000 0.327 14 22
1 230 1862456 2007 11 21 12:00:00.061 11 21 20:37:20.847
60.00 -0.014 0.064 14 14
1 240 1774696 2007 11 21 12:00:00.088 11 21 20:37:20.830
57.17 -0.007 0.380 12 21
- 33: LOG, Site marshall, Wed 21-Nov-2007 15:02:26 MST, Replaced batteries
Chris and Kurt replaced the two used batteries with three fresh batteries.
- 32: data, Site marshall, Wed 21-Nov-2007 14:59:44 MST, swapped pocktecs 11/21/07
Chris swapped pocketecs today, Nov 21, at 13:37 MST.
- 31: sonic, Site marshall, Tue 20-Nov-2007 15:37:47 MST, swapped southw1m and west sonics
Chris and Kurt swapped the southw1m (853) and west (538) sonics this
afternoon to determine if lost samples on south1m sonic is caused by
proximity to southm1m or just a misbehaving sonic. They did this
between roughly 14:15 and 15:00.
Kurt also staked the new solar panel rack installed on Monday.
- 30: sonic, Site marshall, Tue 20-Nov-2007 13:00:15 MST, south1mw sonic still missing samples
I ran data_stats on the data from yesterday until this morning and found that
the southw1m sonic is still missing samples:
:porter.atd.ucar.edu:raw_data: data_stats marshall_20071120_000000.dat
2007-11-20,13:04:10|INFO|opening: marshall_20071120_000000.dat
EOFException: marshall_20071120_000000.dat: open: EOF
sensor dsm sampid nsamps |------- start -------| |------ end -----|
1 30 87120 2007 11 20 00:00:00.327 11 20 11:59:59.541
rate minMaxDT(sec) minMaxLen
2.02 0.100 2.038 49 73
1 150 2591973 2007 11 20 00:00:00.012 11 20 11:59:59.972
60.00 -0.002 0.065 12 12
1 160 2591998 2007 11 19 23:59:59.994 11 20 11:59:59.988
60.00 0.000 0.062 14 14
1 170 2591985 2007 11 20 00:00:00.005 11 20 11:59:59.982
60.00 0.000 0.053 14 14
1 200 2570080 2007 11 20 00:00:00.004 11 20 11:59:59.984
59.49 -0.004 0.380 12 21
1 210 2591994 2007 11 19 23:59:59.996 11 20 11:59:59.992
60.00 -0.014 0.066 14 14
1 220 2591980 2007 11 19 23:59:59.989 11 20 11:59:59.985
60.00 0.000 0.049 14 14
1 230 2592043 2007 11 19 23:59:59.998 11 20 11:59:59.978
60.00 0.000 0.050 14 14
1 240 2591977 2007 11 20 00:00:00.054 11 20 11:59:59.985
60.00 -0.008 0.072 12 12
:porter.atd.ucar.edu:raw_data: data_stats marshall_20071120_120000.dat
2007-11-20,13:02:32|INFO|opening: marshall_20071120_120000.dat
EOFException: marshall_20071120_120000.dat: open: EOF
sensor dsm sampid nsamps |------- start -------| |------ end -----|
1 30 30285 2007 11 20 12:00:00.279 11 20 16:10:16.753
rate minMaxDT(sec) minMaxLen
2.02 0.099 1.748 48 73
1 150 901020 2007 11 20 11:59:59.988 11 20 16:10:17.224
60.00 -0.002 0.073 12 12
1 160 901028 2007 11 20 12:00:00.006 11 20 16:10:17.229
60.00 0.000 0.044 14 14
1 170 901024 2007 11 20 12:00:00.000 11 20 16:10:17.228
60.00 0.000 0.055 14 14
1 200 865055 2007 11 20 12:00:00.004 11 20 16:10:17.233
57.60 0.001 0.380 12 21
1 210 901026 2007 11 20 11:59:59.999 11 20 16:10:17.217
60.00 0.000 0.058 14 14
1 220 900951 2007 11 20 12:00:00.003 11 20 16:10:17.223
59.99 -0.001 0.332 14 22
1 230 901044 2007 11 20 11:59:59.996 11 20 16:10:17.222
60.00 0.000 0.060 14 14
1 240 901020 2007 11 20 12:00:00.050 11 20 16:10:17.234
60.00 0.001 0.056 12 12
- 29: data, Site marshall, Tue 20-Nov-2007 10:15:18 MST, Swapped pocketecs 11/20/07
Swapped pocketecs at 9:11, Nov 20, 2007.
- 28: sonic, Site marshall, Tue 20-Nov-2007 10:11:56 MST, Adjusted sonic position and tested data output
Steve S. and Chris adjusted the south1m west sonic so that it no
longer touches the south1m middle sonic. They ran data_stats for periods
up to 5 minutes in order to check the quality of data from the south1m
west sonic. All sonics reported 60 Hz data.
This work was done late Monday afternoon after restoring power to the
data system. It was completed about 16:30 MST, Nov 19, 2007.
- 27: LOG, Site marshall, Tue 20-Nov-2007 10:09:40 MST, Restored power to Marshall site
Steve S. and Chris restored power to the Marshall site late yesterday
afternoon, Nov 19. They removed the dead battery (reading 3V), installed
two new batteries, and added a second rack of solar panels.
Data archival began at 16:23, Nov 19, 2007.
- 26: sonic, Site marshall, Mon 19-Nov-2007 17:11:15 MST, Coordinate system for down-pointing sonics
Here's how I've defined things when a sonic is hanging down.
This is a bit different from your AHATS log entry, since I define
a "down" instrument coordinate system independent of geographic
coords.
When a sonic is hanging down, define the new sonic U axis to be the
usual up direction of the sonic array (the usual W axis).
The new W is, of course, up into the array (the usual U). V is chosen
so that things are right handed, which is the negative of the usual V.
So, with the "down" sonics at Marshall, the U axis is pointing east,
making the V axis north. So the Vazimuth values for the
down sonics will be approximately 0 deg. I've changed the
cal_files for those sonics.
In the XML, one adds an orientation parameter of "down", which,
of course defaults to "normal":
...
- 25: sonic, Site marshall, Mon 19-Nov-2007 14:51:37 MST, Sonic azimuths
Measured sonic azimuths:
sonic magnetic true (+9.5 deg)
north12m 347.0 356.5
north8m 345.5 355.0
south 346.1 355.6
west 346.0 355.5
8m - 12m 328.2 337.7
ha.e - 8m 334.6 344.1 (east end of hor array - north8m)
ha.e - 12m 331.2 340.7
ha.w - 8m 21.3 30.8 (west end of hor array - north8m)
ha.w - 12m 359.7 9.2
spo advection array
south{wme} 80.3 89.8
north 81.4 90.9
hor array 82.5 92.0
spo.e - 8m 359.4 8.9 (east end of spo array - north 8m)
spo.e - 12m 347.6 357.1
- 24: sonic, Site marshall, Mon 19-Nov-2007 14:50:00 MST, bad sonic data from southw1m
The diag values for southw1m, the west-most of the
3 hang-down sonics, look sick since it was installed
on Nov 13.
I'd check the that the head cable is fully plugged in.
If that is OK, it seems that it should be replaced.
The 5 minute means for u,v,w,tc look reasonable from that sonic,
so over 5 minutes we do get some good data, but quite
a few high rate points are missing.
- 23: data, Site marshall, Mon 19-Nov-2007 14:45:32 MST, Data system stopped
I arrived at Marshall around 9:20, 11/19, and found the data system
had stopped. We speculate that the battery is dead due to increasing
the number of sonics from 3 to 8 last week.
I swapped in a new pocketec. Chris and Steve Semmer plan to put out a
second battery and a second solar panel array this afternoon.
Measured azimuths, took photos, and left at 10:13.
P.S. John Militzer did a quick power estimate and confirmed that one
battery and one rack of solar panels is inadequate for 8 sonics running
at 60 Hz. From the data files, the station stopped on Nov 17, a little
after 02:00 GMT, which would be Nov 16, 19:00 MST.
- 22: sonic, Site marshall, Fri 16-Nov-2007 15:31:11 MST, sonic eeprom dumps
Used rserial on Nov 13 to dump the EEPROM settings of the current 8 sonics:
/dev/ttyS1 south
EEProm_sig=29356. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=243a TK=1 UP=5 FK=0 RN
=1 IT=1 DR=102 rx=2 fx=038 BX=0 AH=1 A
T=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=010 011 010 ELb=010 011 010 TNo=a8a
d TNb=a8a JD= 007\r\nC0o=-2-2-2 C0b=-2-2-2 RC=0 tlo=8 9 8 tlb=8 9 8 CA=1 TD= duty=095 A
Q= 60 AC=1 CD=0 SR=1 UX=0 MX=0 DTU=02320 ss=1 XP=2
RF=018 DS=007 SN1122 19jun06 JC=3 CB=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=29356 &=0 os=
a
/dev/ttyS2 north 8m
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 B
R=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 01
0 010 TNo=977 d TNb=867 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=023
20 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=
/dev/ttyS5 north 12m
EEProm_sig=52525. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=435a 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 Z
Z=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=796 d
TNb=7b7 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=
/dev/ttyS6 southw1m (west)
EEProm_sig=41228. Prom_sig=17263. \n>\r\n>??\r\nET= 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 A
T=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=998
d TNb=888 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 A
Q= 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=
/dev/ttyS7 southm1m.3.6m (middle)
EEProm_sig=53343. Prom_sig=17263. \n>\r\n>??\r\nET= 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 Z
Z=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=677 d
TNb=676 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 SN1117 07aug06 JC=3 CB=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=53343 &=0 os=
/dev/ttyS8 north1m.3.6m
EEProm_sig=39729. Prom_sig=17263. \n>\r\n>??\r\nET= 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=2 Z
Z=0 DC=1 ELo=010 010 010 ELb=010 010 010 TNo=9aa d
TNb=ba9 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 SN1120 21jun06 JC=3 CB=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f Dcs=39729 &=0 os=
/dev/ttyS9 southe1m (east)
EEProm_sig=22282. Prom_sig=17263. \n>\r\n>??\r\nET= 60 ts=i XD=d GN=121a 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 Z
Z=0 DC=1 ELo=010 010 011 ELb=010 010 008 TNo=89b d
TNb=799 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=
/dev/ttyS10 west 1m
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=aec d TNb=aac 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 SN0538 02aug06 JC=3 CB
=3 MD=5 DF=05000 RNA=1 sa=1 rev 3.0f cs=27043 &=0 os=
- 21: data, Site marshall, Thu 15-Nov-2007 11:47:09 MST, Swapped pocketec 11/15/07
Swapped pocketecs around 8:51, Nov 15, 2007.
- 20: LOG, Site marshall, Tue 13-Nov-2007 15:08:36 MST, Oncley advection array
11/12/07, 14:10: Kurt, Chris, and I arrived at Marshall to deploy a test
of the Oncley-suggested advection array. Steve Semmer arrived about an
hour later to help out.
The Oncley advection array consists of pairs of sonics suspended below
the horizontal ASTER tower section, facing downward, and nominally
upwind and downwind of (but below) the ASTER tower section. In order
to evaluate the associated flow distortion at the downwind sonics,
we put three sonics upwind (south) and a single sonic downwind (north)
and opposite the middle upwind sonic. The sonics are separated by a
crosswind spacing of 0.43 m and an alongwind speparation of around 3 m
(need to measure this more exactly). They are on the west end of the
horizontal array at a nominal height of 3.6 m.
A fifth sonic was placed on a separate tower to the west and a little
south of the crosswind array to provide undisturbed reference measurements
for the three upwind sonics. For example, we need to determine the wind
direction acceptance angle for the downward-pointing sonics.
The downward-pointing sonics have their usual vertical (W) axis pointing
east, so that a wind from the west produces a positive w signal; the
usual U axis is up so that a positive vertical component produces a
positive u signal; the usual V axis is pointing south so that a wind
from the north produces a positive v signal.
Thus the transformation for the downward-pointing sonics is
Measured Wind component for
wind component south-pointing sonics
U W
V -U (wind from north)
W -V (wind from west)
We also moved the north sonics from 4m and 8m to 8m and 12m.
We quit about 16:00 due to lack of parts, approaching darkness, and cold.
Gordon, Steve Semmer and I completed the installation of the advection
array the next day, 11/13/07, between 11:15 and 13:00.
Gordon changed the data system configuration to accomodate the 5 new
sonics and moved the data system from the southern of the two north PAM
masts to the west end of the horizontal array. He also output the sonic
configs to determine the following S/N's
Sonic S/N
south.4.5m 1122
north8m.4.5m 1124
norht12.4.5mm 1121
southw1m.3.6m 853 (upwind west)
southm1m.3.6m 1117 (upwind middle)
southe1m.3.6m 800 (upwind east)
north1m.3.6m 1120 (downwind)
west.3.6m 538 (reference)
We confirmed the S/N's of the sonics on the horizontal array, but could
not see the sonic S/N's on the north PAM masts.
- 19: data, Site marshall, Mon 12-Nov-2007 10:59:06 MST, Swapped pocketec 11/12/07
Swapped pocketec this morning, 11/12, at 9:05.
- 18: sonic, Site marshall, Tue 06-Nov-2007 14:07:25 MST, csat cal files for Marshall field test
Gordon and I agreed to use the convention that the sonic did will refer
to the sonic location, e.g. "south", "north2m","north4m","north8m",
but we have named the cal_files "csat_north_1" and "csat_north_2"
where "1" is the closer of the two north sonics irrespective of its
absolute distance from the horizontal array. For example, before Nov
2 csat_north_1 was 2m from the array, but now is 4m from the array.
- 17: data, Site marshall, Mon 05-Nov-2007 14:21:14 MST, Lost data 10/29 - 11/2; pocketec swapped 11/6
The pocketec swapped out on 11/2 only had one file on it!
11/6/07 at 11:24:
I swapped the disks at marshall and the new covars
are running right now.
We lost 4 days + 5 hours of data from
Oct 29 15:26 (09:26 MDT) to Nov 2 20:21 (14:21 MDT).
It seems to have been a disk error - the system logs
reported a usb disconnect on Oct 29 15:26, one minute after
it had been swapped in. The system then remounted the disk
read-only.
It was the "big" disk, the one labeled NCAR-RAF.
After the problem, I did some extensive write testing
to that disk and couldn't get it to fail.
But, we should avoid using that disk on this pro
- 16: data, Site marshall, Fri 02-Nov-2007 16:34:45 MDT, Swapped pocketec Nov 2
Chris swapped the pocketec the afternoon of Nov 2.
- 15: LOG, Site marshall, Fri 02-Nov-2007 16:16:34 MDT, Moved north sonics to 4 and 8 m
Kurt and Chris moved the north sonics from 2 m and 4 m to 4 m and 8 m
today, Nov 2; finished around 2:15 pm, started perhaps 20 minutes
earlier.
Mag True (+9.5)
South sonic 345.7 355.2
North4m sonic 349.9 359.4
North8m sonic 346.7 356.2
Mag True (+9.5)
Outside of East tower to North4m sonic 327.8 337.3
Outside of East tower to North8m sonic 320.8 330.3
Inside of East tower to North4m sonic 333.8 343.3
Inside of East tower to North8m sonic 324.3 333.8
North4m sonic to North8m sonic 314.2 323.7
Inside of West tower to North4m sonic 41.4 50.9
Inside of West tower to North8m sonic 5.6 15.1
Outside of West tower to North4m sonic 44.3 53.8
Outside of West tower to North8m sonic 8.1 17.6
- 14: data, Site marshall, Mon 29-Oct-2007 10:35:02 MDT, Swapped pocketecs Oct 29
Swapped pocketecs around 9:26 MDT, Oct 29.
- 13: sonic, Site marshall, Thu 25-Oct-2007 16:54:16 MDT, Array dimensions
Kurt also measured the azimuthal directions of the north sonics w.r.t
the horizontal array:
Mag True
Inside of the west ASTER tower to north2m 325.6 335.1
Inside of the west ASTER tower to north4m 355.5 365.0
Outside of the west ASTER tower to north2m 316.7 326.2
Outside of the west ASTER tower to north4m 312.5 322.0
North2m to North4m 308.1 317.6
Inside of the west ASTER tower to north4m 024.5 034.0
Inside of the west ASTER tower to north2m 059.2 068.7
Outside of the west ASTER tower to north4m 027.5 037.0
Outside of the west ASTER tower to north2m 060.2 069.7
Last measurement is through tower
- 12: LOG, Site marshall, Thu 25-Oct-2007 16:35:51 MDT, Modifications to Marshall array
Two changes were made to the Marshall array by Kurt and Chris,
starting at 11:08 MDT and ending at 11:57 MDT, October 25:
1) Removed electronic backing plates from horizontal array (to determine
the change in the wake/flow distortion).
2) Added guy wires to the two PAM masts from the bottom of the legs to
the top of the mast (to steady the masts in high winds).
Adding the guy wires required rotating the upper PAM mast section by 180
degrees and thus the sonics were removed and remounted and the sonic
azimuths were remeaured with the DataScope:
Mag True (+9.5)
South sonic: 347.4 356.9
North2m sonic: 353.0 2.5
North4m sonic: 353.5 3.0
Note that the azimuth for the south sonic goes back to Oct 18, when the
5m ASTER tower was removed.
- 11: LOG, Site marshall, Mon 22-Oct-2007 12:39:49 MDT, Pocketec swapped Oct 22
Swapped pocketec local data storage around 9:01 MDT, Oct 22.
- 10: sonic, Site marshall, Mon 22-Oct-2007 10:30:06 MDT, High winds at Marshall
I went out to Marshall around 5:15-5:30 pm, Oct. 18, to look at the sonics
with a high wind blowing. (10-23-07: The 5-minute average wind speeds
were up to 10 m/s.) The PAM masts and the sonics were moving quite a bit
in the strong wind. I recommended to Kurt that he add guy wires to the
PAM masts to stabilize the sonics. At present the only guy wires are
the normal stiffening wires attached to the mast at heights of roughly
1.5 m and 5 m.
- 9: LOG, Site marshall, Mon 22-Oct-2007 10:28:12 MDT, Rain Oct 13-15
The Foothills wx station shows rain from afternoon on Saturday, Oct 13,
until just past midnight early Monday morning, Oct 15.
- 8: LOG, Site marshall, Thu 18-Oct-2007 14:15:50 MDT, Removed upper horizontal ASTER tower section
From 11:00 - 11:55 MDT, Oct. 18, Chris and Kurt removed the upper (5m)
of the two horizontal ASTER tower sections in the array at Marshall.
The purpose is to make the flow distortion of this surrogate for the
upwind AHATS array more similar to that expected during the actual field
program, i.e. there will only be one horizontal tower in the upwind array.
(But I recall now that I originally decided to leave it in place because
we expect the 'carriage' of the moveable arrays to require two horizontal
sections!)
Note that removing the upper ASTER tower section required removing
(11:00) and remounting (11:55) the south sonic, so its orientation will
need to be re-measured with the DataScope. The wind was blowing too
hard to accomplish this today.
- 7: LOG, Site marshall, Thu 18-Oct-2007 09:15:53 MDT, Added yokes to horizontal array
Around 15:00 MDT, Oct 16, Chris and Kurt added 10 more yokes to the
horizontal array in order to make the flow distortion more closely
replicate that expected from the upwind array during AHATS.
- 6: data, Site marshall, Tue 16-Oct-2007 17:20:41 MDT, Pocketec swapped Oct 11 and 16
I swapped pocketecs on 10/11 at 14:57:57 GMT and Chris and Kurt swapped
pocketecs today, 10/16 around 14:55 MDT.
- 5: sonic, Site marshall, Tue 16-Oct-2007 17:15:49 MDT, replaced bad sonic cable
The north2m sonic cable has been disconnected, so no data has been
collected until it was properly connected this afternoon, 10/16, around
14:45 MDT.
- 4: sonic, Site marshall, Tue 16-Oct-2007 17:13:33 MDT, Replaced yoke for south sonic
Kurt and Chris replaced the mounting yoke for the south sonic this
afternoon. This changed the sonic azimuth to 346.5 deg magnetic and
356 deg true. Chris said this was done around the same time that the
cable for north2m was connected properly, 14:45 MDT.
- 3: sonic, Site marshall, Tue 16-Oct-2007 16:09:56 MDT, sonic azimuths
On 10/9/07, Kurt and Chris measured the orientations of the sonics with
the datascope with a declination of 0 degrees.
Magnetic True
CSAT_south 352.0 deg 361.5
CSAT_north2m 351.0 deg 360.5
CSAT_north4m 349.9 deg 359.4
They also measured the angular locations of the north sonics with
respect to the inside legs of the vertical ASTER towers.
Magnetic True
East leg to north4m 317.9 deg 327.4
West leg to north4m 26.6 deg 36.1
East leg to north2m 329.1 deg 338.6
West leg to north2m 53.3 deg 52.8
Marshall site, from ADAM GPS is:
39 deg 56' 53" N
105 deg 11' 44" W
and the declination is 9.5 deg E
- 2: LOG, Site marshall, Tue 16-Oct-2007 14:07:18 MDT, Marshall advection test
AHATS will directly measure the advection terms in the turbulent flux
conservation equations by placing one horizontal array of sonics upwind
of the primary/secondary (two level) sonic array. Chenning estimates
that placing this array 4 m upwind of the primary array will minimize
flow distortion at the location of the primary/secondary array caused by
the wake of the upwind array.
We have begun a test at the Marshall site of this theoretical estimate of
sufficient streamwise separation, using the existing goalpost horizontal
array set up prior to OHATS. This array uses two horizontal ASTER towers
at heights of 4.5 and 5 m supported by two vertical ASTER towers. We are
using the lower horizontal tower at a height of 4.5 m as a surrogate for
the AHATS upwind array, mounting 11 sonic electronic backing plates on it
with a separation of 0.43 m, the closest sonic spacing planned for AHATS.
We then mounted one sonic on the horizontal array to measure the
undisturbed flow upwind (south) of the array and two sonics at 4.5 m on
two PAM masts downwind (north) of the array. The two downwind sonics
were placed 4 m north of the center of the horizontal array and 2 m north
of (roughly) the center of the east half of the horizontal array:
S sonic 4 m downwind of horizontal array
S sonic 2 m downwind of horizontal array
[----------------------] horizontal ASTER tower
S upwind sonic
(North is up on diagram; good winds for the test are from the South)
This array began operating on Tuesday, October 9, at 16:18:34 MDT
- 1: LOG, Site none, Mon 08-Oct-2007 16:36:18 MDT, Logbook created
initial log file /net/isff/aster/projects/AHATS/ISFF/logbook/tklog.log created by USER maclean