Went by ABC this morning to replace the DSM batteries. We had one fresh one. Chris is going back with another one.
15:15 - 15:30
After going back to the base to work on the pyg.in, discovered we grabbed the wrong sensor! Spent time in the lab to get the test mote running and are now back at 7.
Tested pyg.in with the test mote. Did not work via I2C. Did test on sensor with serial cable and it worked. Tried I2C again and it worked. Chris looked
at connector and there appeared to signs of corrosion.
Moved sensor back out to darkhorse and is working ok. The Vmote measurement is now working.
1:00 - 1:20pm
Tried to talk to ETI using SS computer. Didn't work, was not able to send commands to ETI. Did receive output message.
May need special comms software provided by ETI.
Sonic height = 75cm
Sonic boom angle = 80.3deg(Semmer)
11:30 - 11:50
Rad mote: tried reset button and cycled power, GPS and PYG.IN still bad. Pulled power shunt to GPS.
Mote appears to be using the local RTC now. PYG.IN still down.
Removed PYG.IN and turned on GPS. Will diagnose PYG in base trlr. Also not seeing Vrad.
Measuring the heights of sonics by measuring gnd to mast bolt. All sonics at the 10m height are mounted at same position and will be added to this measurement. I measured 68.6cm.
81.6degs for SS CSAT3 angle.
vmote and pyg.in from River7 not coming in. Further investigations show the mote is having trouble with the GPS.
will investigate
Status evaluated from 36 hour plots on Dec 19 08:00-9:00 MST
On site: Steve S and Chris
Summary: no Tsoil at W Slope main
Vdsm: ok, 11.3-14.5v, battery at 2 still low
Vmote.rad: ok,12.6-14v, battery at 7 gone
Vmote.soil: 12.2-14.3 V
P: ok, 833 to 868 mb
Tbaro: ok, -4 to 11 degC
T: ok, -5 to 9 degC
RH: ok, 55 to 100%
Q: ok, 3 to 6 gm/kg
Rainr (3,4,6): ok, getting rain this morning,
Spd (1,6): ok, up to 12 m/s
Dir (1,6): ok, currently S
csat diag: ok, some spiking at 3,5, and 6
spd: ok, up to 10 m/s
dir: ok
u'u': ok, generally < 2 (m/s)^2
v'v': ok, generally < 3 (m/s)^2
w'w': ok, generally < 2 (m/s)^2
u*: ok, up to 1 m/s
sigma_w/u*: ok, ~1.5
tc: ok, -5 to 10 deg C
tc'tc': generally < 1 degC^2, spiking above 4 degC^2 this morning
w'tc': ok, -0.1 to 0.02 m/s degC
kh2oV: ok, 0 to 2.4 V, current values 0 due to heavy rain
kh2o'kh2o': ok, generally < 0.02, spikes above .2 (g/m^3)^2
w'kh2o': ok, -.01 to .03, jumps from -.1 to >.2 (m/s g/m^3)
Rsw.in: ok, up to 270 W/m^2 on 12/18
Rsw.out: ok, up to 180 W/m^2 on 12/18
albedo: ok, 0.1 to 1.0
Rsw.dfs (1,7): ok, up to 230 W/m^2 on 12/18
Rsw.global (1,7): ok, up to 240 W/m^2 on 12/18
Rlw.in: ok, 220 to 340 W/m^2, down at 7
Rpile.in: ok, -80 to 10 W/m^2
Tcase.in: ok, -6 to 9 deg C
Tdome.in (1,2,5): ok, -6 to 9 deg C
Rlw.out: ok, 275 to 345 W/m^2
Rpile.out: ok, -45 to 5 W/m^2
Tcase.out: ok, -6 to 9 deg C
Tdome.out (1,2,5): ok, -6 to 9 deg C
soil.aux at E & W Slope (5,6)
Tsoil: ok, -0.5 to 4.8 C, missing W Slope main
Qsoil: 12 to 36 %vol
Gsoil: -30 to 20 W/m^2
Cvsoil: 9e5 to 3.5e6
11:00 - 11:30 Dec 18
Cleaned krypton and radiometers. Krypton at 2v.
sonic 76.9 magnetic (boom pointing west)
prop 171.7 magnetic
added power jumper for GPS at soil mote
Status evaluated from 36 hour plots on Dec 18 08:00-9:00 MST
On site: Steve S and Chris
Summary: no Tsoil at W Slope main
Vdsm: ok, 11.5-14.8v, battery at 2 still low
Vmote.rad: ok,12.8-15v, peaking to 18v
Vmote.soil: 12.3-14.5 V, peeking to 18v
P: ok, 836 to 871 mb
Tbaro: ok, -6 to 9 degC
T: ok, -12 to 1.5 degC
RH: ok, 45 to 97%
Q: ok, 1.5 to 4.5 gm/kg
Rainr (3,4,6): ok, rain tips from 4 this morning maybe good due snows
Spd (1,6): ok, up to 8 m/s
Dir (1,6): ok, currently S
csat diag: ok
spd: ok, up to 8 m/s
dir: ok
u'u': ok, generally < 1 (m/s)^2
v'v': ok, generally < 1 (m/s)^2
w'w': ok, generally < .3 (m/s)^2, 0.5 this morning at 7
u*: ok, up to 0.8 m/s
sigma_w/u*: ok, ~1.5
tc: ok, -11.8 to 1.8 deg C
tc'tc': generally < 0.1 degC^2
w'tc': ok, -0.1 to 0.08 m/s degC
kh2oV: ok, 0 to 3.0 V, current values 0 to 1.3
kh2o'kh2o': ok, generally < 0.02, spikes up to 0.15 (g/m^3)^2
w'kh2o': ok, -.01 to .02, jumps from -.1 to 1.5 (m/s g/m^3)
Rsw.in: ok, up to 420 W/m^2 on 12/17
Rsw.out: ok, up to 290 W/m^2 on 12/17
albedo: ok, 0.2 to 0.8
Rsw.dfs (1,7): ok, up to 270 W/m^2 on 12/17
Rsw.global (1,7): ok, up to 400 W/m^2 on 12/17
Rlw.in: ok, 190 to 320 W/m^2
Rpile.in: ok, -120 to 0 W/m^2
Tcase.in: ok, -12 to 8 deg C
Tdome.in (1,2,5): ok, -8 to 8 deg C
Rlw.out: ok, 240 to 320 W/m^2
Rpile.out: ok, -45 to 5 W/m^2
Tcase.out: ok, -12 to 8 deg C
Tdome.out (1,2,5): ok, -8 to 8 deg C
soil.aux at E & W Slope (5,6)
Tsoil: ok, -1.1 to 2.8 C, missing W Slope main
Qsoil: 13 to 33 %vol
Gsoil: 6 to 24 W/m^2
Cvsoil: 5e5 to 2.3e6
15:35 - The rad mote had locked up this morning. Chris checked the leds and power and all looked ok. He then re-cycled power and the mote cmae back to life.
All is well!
Some comments on the precip data and wvally4.
The PIC processor on the ETI gauges generates a tip count as shown below:
data_dump -i 4,80 -A isff_20101216.nc 2010 12 16 05:42:25.8211 5.04 9 ETI8 0\r\n 2010 12 16 05:42:30.8613 5.04 9 ETI8 0\r\n 2010 12 16 05:42:35.9015 5.04 9 ETI8 1\r\n 2010 12 16 05:42:40.9424 5.041 9 ETI8 0\r\n 2010 12 16 05:42:45.9823 5.04 9 ETI8 0\r\n 2010 12 16 05:42:51.0220 5.04 9 ETI8 0\r\n
The above snippet shows what appears to be a false tip at Dec 16 05:42 UTC, (Dec 15 22:42 MST). No other stations reported precip, and the longwave in (Rlw.in) doesn't indicate the presence of clouds.
This station had about 17 false tips over that night of Dec 15/16, and a similar looking set of false tips the next night, after the station visit of Dec 16.
Doing a quick look back through the plots shows similar false-looking tips every night between Nov 23 and Dec 1 with the exception of the nights of Nov 27 and 28. There are a few false-looking tips during the day, but most of them are at night. Typically the tips occurred throughout the night, and were not an isolated incident which one might expect from a prankster.
I think the false tips are correlated with temperature, they seem to occur on cold nights, when the temp is below -6C.
A tip is .01 inch of precip in 5 seconds. In the example above, the ETI at station 4 is reporting every 5.04 seconds. Using a value of 5 seconds is in error by less than 1 part in 100.
NIDAS converts .01 inch / 5 seconds to a rate, called Rainr, in mm/hr by multiplying the tip value by 182.88, so that one tip is a momentary rate of 183 mm/hr. 60 (or 59) of these 5 second points are averaged over 5 minutes. So one tip in a 5 minute period will result in an averaged rate of 182.88/60=3.05 mm/hr or 182.88/59=3.10 mm/hr depending on how many samples were received from the ETI in the 5 minute period, which is why there is a little jitter in the value of one tip on the rain plot.
Status evaluated from 36 hour plots on Dec 17 08:00-10:00 MST
On site: Steve S and Chris
Summary: no Tsoil at W Slope main
Vdsm: ok, 11.5-14.8v, battery at 2 ~.8v below others
Vmote.rad: ok,12.3-15v, peaking to 18v
Vmote.soil: 12.2-14.8 V, peeking to 18v
P: ok, 841 to 873 mb
Tbaro: ok, -10 to 17 degC
T: ok, -12 to -.5 degC
RH: ok, 48 to 97%, oscillations at 2,3,5
Q: ok, 1.5 to 3.1 gm/kg
Rainr (3,4,6): ok, false tips at 4 early morning
Spd (1,6): ok, up to 5 m/s, thresholda t 6 looking better
Dir (1,6): ok, currently SE
csat diag: ok; error from 2 when we visited site yesterday
spd: ok, up to 5.5 m/s
dir: ok
u'u': ok, generally < 1 (m/s)^2, high values at 3 this morning (2-3 m/s)
v'v': ok, generally < 1 (m/s)^2, ditto at 3
w'w': ok, generally < .5 (m/s)^2, ditto at 3
u*: ok, up to 0.8 m/s
sigma_w/u*: ok, ~1.5
tc: ok, -11 to -1 deg C
tc'tc': generally < 0.03 degC^2
w'tc': ok, -0.1 to 0.05 m/s degC
kh2oV: ok, 1.6 to 3.0 V, current values
kh2o'kh2o': ok, generally < 0.02, spikes up to 0.19 (g/m^3)^2
w'kh2o': ok, -.01 to .02, jumps from -.03 to 0.5 (m/s g/m^3)
Rsw.in: ok, up to 680 W/m^2 on 12/16
Rsw.out: ok, up to 370 W/m^2 on 12/16
albedo: ok, 0.2 to 1.0 due to frost on the domes?
Rsw.dfs (1,7): ok, up to 100 W/m^2 on 12/16
Rsw.global (1,7): ok, up to 480 W/m^2 on 12/16
Rlw.in: ok, 190 to 260 W/m^2
Rpile.in: ok, -160 to -10 W/m^2
Tcase.in: ok, -12 to 8 deg C
Tdome.in (1,2,5): ok, -12 to 8 deg C
Rlw.out: ok, 240 to 310 W/m^2
Rpile.out: ok, -70 to 5 W/m^2
Tcase.out: ok, -12 to 10 deg C
Tdome.out (1,2,5): ok, -12 to 10 deg C
soil.aux at E & W Slope (5,6)
Tsoil: ok, -1.2 to 3.8 C, missing W Slope main
Qsoil: 13 to 34 %vol
Gsoil: 7 to 31 W/m^2
Cvsoil: 5e5 to 3.2e6
11:50 - 12:05
Cleaned frost from radiometer domes.
sonic angle - 86.7 magnetic (sonic boom pointing west)
Checked rain gauge, solution was slushy. Chris broke through slush so there is bound to be a lot of false readings at this time.
10:45 - 11:10, Dec 16
Cleaned krypton, v = 2.4. Cleaned up looking domes, frost built up on Rsw.in. Rlw.in looked ok.
Since the battery acted up the other day we decided to move the DSM internal power cable from the power panel board to a serial panel board.
If we continue to have problems with power, next step will be to either replace the power cable or the stack power supply.
new angle on boom, 249.5 magnetic (boom pointing east)
twh (3/1/11): high-rate u,w suggests mast down 10:58 - 11:09
high-rate data indicates kh2o cleaned at 11:01
(3/3/11): high-rate u and p indicate mast down 10:59 - 11:08
Status evaluated from 36 hour plots on Dec 16 08:00-10:00 MST
On site: Steve S and Chris
Summary: no Tsoil at W Slope main
Vdsm: ok, 11.8-14.5v
Vmote.rad: ok,12.3-15v, peaking to 18v, site 2 looking good
Vmote.soil: 12.2-14.5 V, peeking to 18v
P: ok, 833 to 875 mb
Tbaro: ok, -10 to 18 degC
T: ok, -10 to 7 degC
RH: ok, 48 to 100%
Q: ok, 2.2 to 6.0 gm/kg
Rainr (3,4,6): ok, false tips at 4 early morning
Spd (1,6): ok, up to 12 m/s, 6 has high threshold
Dir (1,6): ok, currently W (6) and E (1)
csat diag: ok; no errors from yesterday
spd: ok, up to 10 m/s
dir: ok
u'u': ok, generally < 2.5 (m/s)^2
v'v': ok, generally < 2.0 (m/s)^2
w'w': ok, generally < 1.0 (m/s)^2
u*: ok, up to 0.8 m/s
sigma_w/u*: ok, ~1.5
tc: ok, -10 to 7 deg C
tc'tc': generally < 0.05 degC^2, high during snow event
w'tc': ok, -0.07 to 0.05 m/s degC
kh2oV: ok, 0.0 to 3.2 V, most recovered from snow, 2 low at .6
kh2o'kh2o': ok, generally < 0.03, spikes up to 0.2 (g/m^3)^2
w'kh2o': ok, currently up to 0.5 (m/s g/m^3)
Rsw.in: ok, up to 600 W/m^2 on 12/15
Rsw.out: ok, up to 500 W/m^2 on 12/15
albedo: ok, 0.15 to 1.0 due to snow
Rsw.dfs (1,7): ok, up to 300 W/m^2 on 12/15
Rsw.global (1,7): ok, up to 500 W/m^2 on 12/15
Rlw.in: ok, 200 to 330 W/m^2, 1 reading high compareed to others this morning
Rpile.in: ok, -160 to 0 W/m^2
Tcase.in: ok, -12 to 13 deg C
Tdome.in (1,2,5): ok, -12 to 13 deg C
Rlw.out: ok, 300 to 380 W/m^2
Rpile.out: ok, -40 to 8 W/m^2
Tcase.out: ok, -12 to 13 deg C
Tdome.out (1,2,5): ok, -3 to 15 deg C
soil.aux at E & W Slope (5,6)
Tsoil: missing W Slope main
Qsoil: 13 to 33 %vol
Gsoil: -30 to 40 W/m^2
Cvsoil: 5e5 to 4e6
15:15:- 15:30
Cleaned radiometer domes, there was snow accumulation.
sonic angle - 248.7 magnetic (sonic boom pointing east)