6/15:
Started processing these soils at about 1815 today -- rather late for samples taken about 1100, so might be a bit too dry.
Dry weights taken 21 hours later.
Comparison sensor measurements read by eye from WWW plot.
6/21: 1200
In both cases, should have driven the corer further in (collar was flush, but apparently had compacted) -- use 0-2cm in both cases. a.soil also still had some litter and b.soil had some roots.
6/26: 1015
A bit drier than before. Mike Daniels helped. I think we got the whole 3cm in the top sample, though the soil may have been compacted in the process.
7/3: 1015/1025
A bit wetter due to some rain last night. Note that the wetness profile probably isn't uniform, though Qsoils did show an uptick. b 0-3cm probably was compacted too much (too dense). Scales have been moved into base trailer (from AABC lab).
Date | Position | Tare (g) (g) | Wet (g) (g) | Dry (g) (g) | rho (g/cm^3) | Moist (%) | Moist (%) |
|---|---|---|---|---|---|---|---|
6/15 | soil.a 0-3cm | 7.981 | 74.357 | 48.354 | 0.61 | 39.2 |
|
6/15 | soil.a 3-6cm | 7.940 | 97.473 | 72.210 | 0.97 | 38.0 | 30 |
6/15 | soil.b 0-3cm | 7.945 | 90.836 | 67.464 | 0.90 | 35.2 |
|
6/15 | soil.b 3-6cm | 7.991 | 98.365 | 78.623 | 1.06 | 29.7 | 23 |
6/21 | soil.a 0-3cm | 7.972 | 51.536 | 29.353 | 0.48 | 50.1 |
|
6/21 | soil.a 3-6cm | 7.940 | 102.324 | 68.270 | 0.91 | 51.3 | 27 |
6/21 | soil.b 0-3cm | 7.927 | 59.973 | 42.641 | 0.78 | 39.1 |
|
6/21 | soil.b 3-6cm | 7.987 | 74.350 | 55.189 | 0.71 | 28.8 | 25 |
6/26 | soil.a 0-3cm | 7.972 | 116.089 | 79.391 | 1.08 | 55.2 |
|
6/26 | soil.a 3-6cm | 7.939 | 120.337 | 92.536 | 1.27 | 41.8 | 34 |
6/26 | soil.b 0-3cm | 7.926 | 78.270 | 59.924 | 0.78 | 27.6 |
|
6/26 | soil.b 3-6cm | 7.984 | 103.500 | 84.423 | 1.15 | 28.7 | 21 |
7/3 | soila 0-3cm | 7.990 | 73.581 | 46.360 | 0.58 | 41.0 |
|
7/3 | soila 3-6cm | 7.945 | 96.626 | 69.548 | 0.93 | 40.8 | 34 |
7/3 | soilb 0-3cm | 7.913 | 105.195 | 77.396 | 1.05 | 41.8 |
|
7/3 | soilb 3-6cm | 7.986 | 103.252 | 83.068 | 1.13 | 30.4 | 22 |
tare = c(c(7.981,7.940,7.945,7.991),c(7.972,7.940,7.927,7.987),c(7.972,7.939,7.926,7.984),c(7.990,7.945,7.913,7.985))
wet = c(74.357,97.473,90.836,98.365,51.536,102.324,59.973,74.350,116.089,120.337,78.270,103.500,73.581,96.626,105.195,103.252)-tare
dry = c(48.354,72.210,67.464,78.623,29.353,68.270,42.641,55.189,79.391,92.536,59.924,84.423,46.360,69.548,77.396,83.068)-tare
vol = c(2,3)*pi*(5.31/2)^2
moist = 100*(wet-dry)/vol[c(2,2,2,2,1,2,1,2,2,2,2,2,2,2,2,2)]
rho = dry/vol[c(2,2,2,2,1,2,1,2,2,2,2,2,2,2,2,2)]
m = array(moist,c(2,2,4))
grav.moist = t(0.5*(m[1,,]+m[2,,]))
grav.comp = t(m[2,,])
ec5 = matrix(c(30,23,27,25,34,21,34,22),ncol=2,byrow=T)
matplot(grav.comp,ec5,xlim=c(0,60),ylim=c(0,60)); abline(0,1,lty=2); abline(-8,1,col=3,lty=2)
Since we've seen evidence of water inside the mote boxes, we have just put peal&seal around the antennas of the tower ground motes (Tsoil.a Tsoil.b Tsoil.a2, rad).
After playing with several options at about 1800, eventually just tried plugging Tsoil.b back in. It is now working fine!? We'll have to keep checking it...
16:00 - 17:00: Steve O. noticed issues with the TP01 at soil B. This problem was in addition to the Tsoil going out today. So we decided to replace the
mote. Unfortunately the spare is being used for soil.a2. An attempt was made to get a mode Steve O. brought with him. He was going to play with it working'
on the chirpsonic software. The attempt failed; however, we did get the Tsoil going again. As noted earlier water was found in the bottom of the mote box. The Tsoil
problem may have been related to the water which has now dried out. We will monitor.
Since we think that one of the ports on Mote 11 is dead, at about 1215 we moved the wetness sensor to Mote 18 that was installed yesterday. I've added the new mote ID to its configuration.
Well....I <almost> made it. (My first time high on the tower.)
Was on the tower from 1055-1210 today, cleaning everything from 2m->32m. As Chris did, I started by putting a drop of water on the wetness sensor (with the exception of the 2m level, which doesn't have one, and the 8m licor that I did just a minute before putting the drop on). Later, I realized that I could use the drop as a source of water while doing the cleaning! Note that I pulled out the 8m mote cable in my attempt to raise the boom, so I gave up and did all servicing with the booms in their normal position. With this, I was only able to reach 4 of the 6 par wand sensors, but they looked pretty clean anyway.
krypton.2m: 105430-105510 (raised signal)
8m: 1106-1123 (was messing around trying to raise PAR boom, but couldn't get it to work right). (licor 1106 -- no effect)
14m: 1125-1131 (krypton 1127 - raised signal)
20m: 1134-1139 (licor 1138 - slight co2 change; PAR 1135-1136 - no effect)
26m: 1143-1146 (licor 1145 - no effect; PAR 1146 -- no effect)
32m: 1149-1151 (licor 1150--1151 - no effect; PAR 1151 - no effect)
can't detect lower PAR cleaning times from data
Overnight, Tsoil.b died. By playing around at about 1030-1045 today, we've determined that the probe itself is now not working. (Though we did see some evidence of water in the mote box.) We'll install a spare later today.
12:00 -12:15: Due to the loss of a port on the RAD mote, the wetness sensor was moved to a port on the soil.a2 mote. The sensor remained on the darkhorse.
11:00 - 12:00: Soil samples were taken at sites A and B in increments of 0 - 3 cm and 3 - 6 cm.
Weather: clear skies this morning
Sensors:
Sonics: ok, some Idiag activity on 43.9m early this morning
TRH, P: ok
H2O, CO2: ok, some clipping on 38m
Tsfc, Rpar: ok
Krypton: ok, low signal on 13.9m
soils: soil sensors at b questionable, Tsoil.b out, qsoil.b funny
Rad: ok
wetness: ok, out at rad due to bad port
Vdsm: ok
Vmote: ok, 12.1 to 12.7
After the rain last night (timing not verified), the undercanopy Rsw.in died, though it wasn't noticed until late in the day. About 1815-1830 determined that water got into the mote box and the next-to-the-left port no longer works. Pulled the wetness sensor to allow the radiometers to occupy the remaining ports. Ultimately, this mote should be replaced. (It may be good that I brought a spare with me!)
We've noticed that the 8m sonic dies in rain, though it was able to be restarted this morning. I replaced the cable (by tower climbing from about 1530-1545), which killed it. We then (1615?) swapped serial ports (from ttyS5 to ttyS19) and now it works. We haven't gone back to the original serial cable to see if it is okay. In any case, the old cable backshell on the sonic side of the cable should be resealed. I'll tape it when I next climb. We also should try to debug port ttyS5.
Since Tsoil.a.4cm has been noisy, we installed a new sensor on a new mote. This was installed about 50cm north of the previous Tsoila, so pretty close. It is now configured as Tsoil.c. This added about 1500 t
Data from 8m sonic quit around 22:00 local last night, June 13, which was shortly after the rain started.
This morning at about 6:15 logged tried to restart it with rserial and '&', 'D' commands, but failed.
What did work was "eio 5 0; eio 5 1"
This serial port is showing many errors (rather like the 20m sonic).
cktty 5 5: uart:ST16654 port:F1000100 irq:3 tx:24312 rx:335503663 fe:1254623 brk:548000 RTS|CTS|DTR
These high counts for fe (framing errors) and brk (break condition) are since the last reboot of the low DSM, 16 days ago, so we don't know if they happened last night.
A storm came in from the north last night. It rained intensely for about 2min while we had dinner in Tuscaloosa. All gauges saw it at about 2145 with totals:
undercanopy: 5.0mm (includes an event earlier in the day)
ott: 3.1mm
new tipping bucket: 3.1mm
pond: 4.3mm
Thus, perfect agreement between the 2 new sensors and general agreement between all.
All systems stayed up, though all sensors stayed wet overnight.