TP01 Installation Note: The sensors were placed in the ground at the proper depth, but the transducer foil was oriented 90-degrees off, being flat rather than edge facing up.
See photos for some of the soil installations taken at/prior to teardown. Note the branch at SoilB and the uncovered transducers prior to excavation. Other photos are available on the project repository and will be posted to the web page when available.
Following the SOAS project, we tested each sonic in a zero-wind enclosure within the EOL temperature chamber, measuring wind component offsets and sonic temperature errors over the nominal range -30 C to 55 C. The procedure is to warm the chamber up to 55 C and then slowly decrease the temperature linearly to -30 C, followed by slowly increasing the temperature back to 55 C. The zero-wind enclosure holds two sonic heads on their sides (with the v-axis vertical) and electronics, one above the other and separated with a horizontal layer of rigid blue foam. On the cool-down cycle, the atmosphere around the top sonic is unstably stratified (cold enclosure lid above warmer air) and that around the bottom sonic is stably stratified (cold enclosure bottom below warmer air). The opposite is true during the warm-up cycle. Both the wind component data and the sonic temperature data have significantly less variance when the air is stably stratified, and thus we use data from the bottom sonic during the cool-down cycle and data from the upper sonic during the warm-up cycle.
The following table shows wind component offsets as okay if the u and v offsets are less than +/- 4 cm/s and the w offsets less than +/- 2 cm/s. If the zero wind offset exceeds these thresholds, the table lists the temperature range of the over-limit offset and the largest amplitude of the offset. The plots of offsets versus temperature can then be examined to determine the exact nature of the offset.
The last column relates to the following project, METCRAX, in October 2013. The operating temperature range for night-time warm-air intrusions into the crater is on the order of -10 to +20 C. The last column notes whether or not the sonic is suitable for that temperature range. Several sonics not used in SOAS tested okay post-SCP.
SN |
Height |
EOL Cal |
CSI Cal |
u |
v |
w |
METCRAX? |
---|---|---|---|---|---|---|---|
0536 |
|
8/1/13 |
6/27/12 |
ok |
ok |
ok |
OK |
0537 |
|
8/1/13 |
6/21/12 |
ok |
ok |
ok |
OK |
0538 |
8 m |
7/25/13 |
10/17/12 |
32 - 49 C |
46 - 49 C |
44-46 V |
OK |
0539 |
|
8/2/13 |
6/20/12 |
ok |
ok |
ok |
OK |
0540 |
|
|
2013 recal |
|
|
|
OK |
0671 |
|
8/3/13 |
6/28/12 |
ok |
ok |
ok |
OK |
0672 |
32 m |
7/26/13 |
10/10/12 |
35 - 49 C |
36 - 49 C |
ok |
OK |
0673 |
26 m |
7/25/13 |
7/18/12 |
ok |
25 - 44 C |
20 - 50 C |
OK |
0674 |
|
7/29/13 |
8/13/12 |
ok |
ok |
ok |
OK |
0677 |
|
8/2/13 |
6/17/12 |
ok |
16 - 30 C |
ok |
Requires |
0720 |
RAL |
7/31/13 |
12/31/11 |
ok |
ok |
ok |
OK |
0738 |
RAL |
8/1/13 |
5/12/10 |
17 - 25 C |
10 - 45 C |
26 - 42 C |
Returned to |
0739 |
RAL |
8/1/13 |
8/18/10 |
46 - 55 C |
ok |
48 - 55 C |
OK |
0740 |
RAL |
7/31/13 |
8/28/12 |
ok |
ok |
26 - 36 C |
OK |
0800 |
14 m |
7/29/13 |
6/19/12 |
ok |
10 - 35 C |
17 - 53 C |
Requires |
0853 |
|
8/2/13 |
6/21/12 |
ok |
ok |
ok |
OK |
0855 |
|
8/3/13 |
9/12/12 |
-13 - 1 C |
ok |
44 - 49 C |
Marginally |
0856 |
|
|
2013 recal |
|
|
|
OK |
1117 |
|
|
2013 recal |
|
|
|
OK |
1119 |
2 m |
7/26/13 |
8/9/12 |
ok |
49-53 C |
1 - 44 C |
Marginally |
1120 |
|
|
2013 recall |
|
|
|
OK |
1121 |
20 m |
7/26/13 |
12/8/11 |
-14 - 24 C |
-14 - 44C |
-15 - 49 C |
Requires |
1122 |
44 m |
7/26/13 |
12/8/11 |
28 - 53 C |
49 - 53 C |
48-53 C |
OK |
1123 |
|
|
2013 recal |
|
|
|
OK |
1124 |
|
8/2/13 |
7/19/12 |
ok |
ok |
ok |
OK |
1244 |
38 m |
7/30/13 |
|
-25 - 49 C |
11 - 30 C |
18 - 42 C |
Requires |
These are the mote associations with the radiometer-booms at teardown. Some changes from setup noted.
See also entry from June9th "Sensor Locations and Serial Numbers."
Level |
Mote |
PAR |
IRT |
Wetness |
|
---|---|---|---|---|---|
8m |
SN1 |
1530 |
4078-1 |
023 |
irt changed from original 3577-4 |
14m |
SN17 |
1529 |
3389-1 |
032 |
irt changed from original 4078-3 |
20m |
SN2 |
1893 |
3577-4 |
036 |
changed irt on 7/13 |
26m |
SN3 |
1892 |
3577-2 |
026 |
|
32m |
SN8 |
6951 |
3577-3 |
022 |
irt changed from original 3389-3 |
38m |
SN19 |
4-comp |
|
|
|
July 20, 2013
We are all packed and site is cleaner than when we left it. Good bye, SOAS.
July 19, 2013
The whole tower is down and all gear has been removed from the forest...including power cable. Base Trailer has been shipped out and all we have is to do is pack the Penske.
July 18, 2013
Base Trailer is packed and ready for moving. We will stage it over by the old gov't buildings so Trailer Transit will not have to deal with any nasty conditions. The tower is down to 30' and all sections have been cached by the old gov't buildings.
Lightning protection has been removed from the SEARCH site. Hardhats, first aid kit and safety glasses have been brought back to the AABC site for shipping.
July 16, 2013
Got down to 80' on tower removal. This includes anchors and chemistry tubes.
July 16, 2013
We have removed all sensors and brackets from the tower today. Fiber has been pulled and wound up on spools.
High Fives!
July 15, 2013
~11:30am CDT
Tower was climbed with a student tour. Lasted about 15 minutes.
15Jul13
From ~12:15 - 15:30 we had the power down at the tower site, and thus the network link as well. NO DATA LOSS: Local data storage remained up on the dsm's and data transfer should happen as normal tonight.
This was done as the ACD / Tram trailer were loaded and hauled out. Kerry Slaven showed up to help and they brought their Penski so we took advantage and had the ACD eqpt. loaded for shipment early. While doing so, we then pulled our big transformers and put them in the Tram trailer in addition to the ACD overflow in preparation for shipping.
Power was re-wired to the small transformers and the network comms came back normally.
15July13 first look .... edits lost/computer problem, leaving for base and tram trailer extraction. Last day of project
Re-entering what i recall when looking hour+ ago.....
|
|
|
---|---|---|
Personnel |
jm,cg |
Kurt, Rudy arrived for teardown |
Weather |
|
Forecast is for 40% isolated showers with high in mid 80's. Rain last night at ~9-11pm CDT (2-4z) |
Other |
|
ACD operations are over and Tram trailer is going to be pulled today. |
System |
ok |
Cockpit |
|
vpn |
vpn ... |
|
df |
/media/usbdisk % /scr ..% Backup .... / ..% |
DSMs |
ok |
low,mid,high, gps all ok. |
|
ok 26m |
26m sonic had troubles and continuing since rains last night. Others appear ok. |
WndSpd/Dir |
ok |
|
H2O, CO2 |
ok |
All Licor7500 diags all remain normal. |
TRH |
ok |
|
P |
43m |
43m problems continuing. |
Rad |
ok |
|
Tsfc |
ok |
8m tsfc may be having troubles |
Wetness |
ok |
|
Soil |
ok |
tsoila 4.4cm bad. |
VmoteRad |
ok |
|
Webcam |
|
|
Pond |
ok |
|
Sodar |
|
|
July 14, 2013
11:30 - 1:00pm CDT
Took three students up the tower for a show-and-tell. The ride price was $10 for 10 minutes, with additional minute(s) at 10cents.
20m Tsfc out from ~ 12July 2:00 - 14July 9:30
The old sensor filled with water apparently from the back/bulgin side.
The new sensor installed 7/14 ~9:30 but not seen in cockpit or covars. Looking directly at the mote using 'mp=1' dsm-printable it is reporting. Its i2c address is 0x3c, serial number 1. The xml may be looking for a different address.
14jul13 pm update
|
|
|
---|---|---|
Personnel |
jm,cg |
|
Weather |
|
Forecast is for 80% chance tstorms high in low-mid 80's. Rain last night at ~9pm CDT (2z) |
Other |
|
Tower climbing from 9:30-13:00. First we took photos hoping to document the sensors/heights; then students showed up for an ISFS orientation and Chris helped 3 of them climb the tower sequentially. |
System |
ok |
Cockpit ok |
|
vpn |
vpn not working from base data getting through. |
|
df |
/media/usbdisk 32% /scr 80% backup 7% / 25% |
DSMs |
ok |
low,mid,high, gps all ok. Vdsm mostly ok but pond a/c went out: |
Sonics |
ok |
All sonics are up, good diags and normal until rain at roughly 14-15CDT |
WndSpd/Dir |
ok |
|
H2O, CO2 |
ok |
All Licor7500 diags all remain above 240: normal operation. |
TRH |
ok |
|
P |
43m :-( |
43m problems continuing. |
Rad |
ok |
|
Tsfc |
ok |
20m tsfc down. New sensor installed ~9:30 but not seen in covars or covars. Looking directly at the mote using 'mp=1' dsm-printable it is reporting. Its i2c address is 0x3c, serial number 1. The xml may be looking for a different address. |
Wetness |
ok |
|
Soil |
ok |
tsoila 4.4cm bad. Swapped battery on tsoil.b |
VmoteRad |
ok |
|
Webcam |
ok |
|
Pond |
ok |
AC power is out and running off battery which is draining steadily. Power strip in sodar distribution box was tripped and their air conditioner was off. Turned back on |
Sodar |
ok |
Hearing normal pinging, but the air conditioner was off until about 13:30 |