- 287: hydra, Site hydra, Thu 02-Jun-2005 12:09:23 MDT, Snow Pit Information, Winter 2005, Hydra Site
Time Air Cloud
Date DOY Observer(s) (MST) Temp Cover Precip Wind Spd/Dir Surface Hardness Pit Depth
------ --- ----------- ------ ----- ----- ------- ------------- ----------------- -----------
050331 90 DG,MM 08:45 -7C 100% light snow 1m/s 5 fist 110.0cm
050317 76 DG,MM 09:30 -5C 80% none 10m/s 5 fist 102.0cm
050310 69 MM 10:30 2C 90% mod. snow 3m/s 3 two fingers 89.0cm
050225 56 SpB 16:00 -4C 0% none calm 89.0cm
050217 48 MM,DG 09:40 -3C 0% none 5m/s 5 fist 93.0cm
050210 41 MM,DG 10:30 -1C 0% none gusty 5-10m/s 5 fist 91.0cm
050203 34 SpB 16:00 -1C 0% none calm 93.5cm
050127 27 MM,DG 10:00 -1C 100% light snow calm 2 pencil 58cm
050113 13 MW,MM,DG 11:00 -8.5C 0% none 20m/s, gusty 64cm
------------------------------------------------
Density/Temperature Table:
(g of snow (per 1 liter?) & layer Temperature C)
Depth Ranges (cm)
Date ground 0 - 10 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - 80 80 - 90 90 - 100 100 - 110 110 - 120 120 - 130
------ ------- --------- --------- --------- --------- --------- --------- --------- --------- --------- --------- --------- --------- ---------
050331 NA NA NA 0.0 NA 0.0 NA 0.0 NA -0.5 NA -1.0 NA -1.0 NA -2.0 NA -2.0 NA -3.5 NA -4.0 NA -6.0
050317 NA NA 300 -1.0 275 -2.0 296 -2.0 254 -3.0 276 -3.0 275 -4.0 274 -4.0 232 -5.0 205 -6.0 107 -7.0
050310 NA NA 290 -1.0 287 -1.5 295 -2.0 273 -2.5 311 -3.0 334 -5.0 300 -4.0 324 -4.0 261 -4.5
050225 NA NA 302 0.0 286 -0.5 295 -2.0 290 -2.0 289 -3.0 279 -6.0 272 -5.0 241 -4.0 180 -4.5
050217 NA NA 345 -1.0 282 -2.0 356 -2.0 294 -2.5 294 -3.0 317 -4.5 260 -5.0 238 -6.5 208 -8.0
050210 NA NA 344 -1.0 344 -1.5 319 -2.0 278 -3.0 304 -4.0 254 -4.0 252 -6.0 228 -7.0 183 -7.0
050203 NA NA 300 -0.5 300 -1.0 314 -1.0 270 -2.0 269 -3.0 230 -4.0 181 -5.0 155 -5.0 126 -4.5
050127 NA NA 311 -0.5 305 -1.0 300 -2.0 249 -3.0 225 -4.5 225 -5.0
050113 NA NA 245 0.0 261 -1.0 294 -2.0 275 -5.0 223 -5.0 203 -9.0
Comments:
---------
03/31: Scale missing.
ice layers at 102, 100, 85, 81.
03/17: ice layers at 81, 78, 40, 15cm.
03/10: Snow started and increased in rate throughout dig.
ice layers at 85, 72, 58, 23, 10cm.
02/25: Tare = 702g. Strong ice layer with pine needles at 41cm. Strong ice layer at 55cm. Sugar snow below 55cm.
ice layers at 83, 76, 55, 41cm.
02/17: Ice Layers at 81, 52, 35cm.
Above 35cm, ET. Below 35cm, TG.
02/10: Above 48cm, ET. Below 48cm, TG.
Ice Layers at 59, 48, 19cm.
02/03: Tare = 721g, Lots of new snow. @40cm, distinct ice layer with pine needles. Below 40cm, all sugar snow.
ice layers at 93.5, 54, 40cm.
1/27: between 20-30cm wet/sticky snow. possible new layer forming.
ice layers at 58, 42, 40cm.
01/13: transition from ET (equitemperature) to TG (depth hoar) between 18-38cm.
ice layers at 18, 38, 40, 64cm.
- 179: hydra, Site hydra, Fri 02-Apr-2004 12:32:06 MST, Hydra slow sucking (night of 3/30)
On the night of 3/30 modified the hydra to sample with large pauses
between the sucks, then 3-4 quick samples to see if there is any
effect....i had everything idle when pausing...might try this again
with air sucking during "rest" period.
some details:
modified the opto 22 program to do nothing for 90 minutes then
do a bunch of samples....
[cuff@quacker opto22]$ ls -lag *.* | grep 'Mar 3'
-rw-rw-r-- 1 cuff cuff 6558 Mar 30 16:30 chemcontrol.cxx
-rw-rw-r-- 1 cuff cuff 7320 Mar 30 16:21 cmds.c
-rw-rw-r-- 1 cuff cuff 435 Mar 30 16:28 quicksuck.c
here is how it started off:
[~] rserial quacker 210
*** use ^d or ^c to terminate rserial
send socket open to quacker
>00J1002??\r
>00J1008??\r
>00J1010??\r
>00J9020??\r
>00J4000??\r
>00J3080??\r
>00J1001??\r
>00J1002??\r
>00J1004??\r
>00J4000??\r
>00J3080??\r
>00J1001??\r
>00J1002??\r
>00J1004??\r
>00J4000??\r
>00J1001??\r
>00J3020??\r
>00J3080??\r
[cuff@quacker opto22]$ more quicksuck.c
/* OPTO HEADER FILE
* This is a header file used by the OPTO22 software
*/
struct commandSet optoProgram[] =
{
quicksuck,1, /* 2 * 8 = 16 minutes approx */
quicksuck1,2, /* 2 * 8 = 16 minutes approx */
quicksuck2,2, /* 2 * 8 = 16 minutes approx */
cal10min,1, /* 8 minutes */
airsnow30min,1, /* 30 * 8 = 240 minutes = 4 hours */
donothing10min,9, /* 90 minutes */
reset,1,
};
struct command quicksuck[] =
{
/* just a quick sampling of data picked locations somewhat randomly */
"4000", 240, /* ASP1 ON, everything else OFF */
"3010", 80,
"3020", 80,
"3040", 80,
"3080", 80, /* 18*54=972, DISTRIB ON, sample #1, A8 */
"1001", 80, /* DISTRIB OFF, sample #1, B1 */
"1002", 80,
"1008", 80,
"1010", 80,
"9020", 80, /* ASP2, Distrib Off, sample, ON, sample 6, B6 */
0,0, /* end of command array */
};
struct command quicksuck1[] =
{
/* just a quick sampling of data picked locations somewhat randomly */
"4000", 240, /* ASP1 ON, everything else OFF */
"3080", 80, /* 18*54=972, DISTRIB ON, sample #1, A8 */
"1001", 80, /* DISTRIB OFF, sample #1, B1 */
"1002", 80,
"1004", 80,
0,0, /* end of command array */
};
struct command quicksuck2[] =
{
/* same as quicksuck, but the order is changed */
"4000", 240, /* ASP1 ON, everything else OFF */
"1001", 80, /* DISTRIB OFF, sample #1, B1 */
"3020", 80,
"3080", 80, /* 18*54=972, DISTRIB ON, sample #1, A8 */
"1002", 80,
"3010", 80,
"1008", 80,
"3040", 80,
"1010", 80,
"9020", 80, /* ASP2, Distrib Off, sample, ON, sample 6, B6 */
0,0, /* end of command array */
};
- 177: hydra, Site hydra, Fri 02-Apr-2004 12:23:39 MST, Hydra all night suck (night of 3/22)
For the night of March 22nd ran the hydra with the undersnow inlets
sucking continuously (almost continous).
here are some details:
[~] date
Tue Mar 23 01:01:02 MST 2004
ls -lag /usr/local/cuff/aster/projects/NIWOT/src/opto22/*.* | grep 'Mar 23'
-rw-rw-r-- 1 cuff cuff 6459 Mar 23 00:26 /usr/local/cuff/aster/projects/NIWOT/src/opto22/chemcontrol.cxx
-rw-rw-r-- 1 cuff cuff 5990 Mar 23 00:22 /usr/local/cuff/aster/projects/NIWOT/src/opto22/cmds.c
-rw-rw-r-- 1 cuff cuff 5990 Mar 23 00:19 /usr/local/cuff/aster/projects/NIWOT/src/opto22/cmds.c~
-rw-rw-r-- 1 cuff cuff 229 Mar 23 00:22 /usr/local/cuff/aster/projects/NIWOT/src/opto22/snowsuck.c
-rw-rw-r-- 1 cuff cuff 228 Mar 23 00:21 /usr/local/cuff/aster/projects/NIWOT/src/opto22/snowsuck.c~
snowsuck does:
[cuff@quacker adam]$ more /usr/local/cuff/aster/projects/NIWOT/src/opto22/snowsuck.c
snowsuck does:
[cuff@quacker adam]$ more /usr/local/cuff/aster/projects/NIWOT/src/opto22/snowsuck.c
/* OPTO HEADER FILE
* This is a header file used by the OPTO22 software
*/
struct commandSet optoProgram[] =
{
snowsuck20min,15, /* 30 * 8 = 240 minutes = 4 hours */
cal10min,1, /* 8 minutes */
reset,1,
};
in cmds.c:
struct command snowsuck20min[] =
{
/* air and snow sampling, pumps running, 15*80= 1200 sec = 20 minutes */
"7001", 80, /* ASP1 ON, DISTRIB ON, sample #1, A1 */
"7002", 80,
"7004", 80,
"7008", 80,
"7010", 80,
"7020", 80,
"7040", 80,
"7080", 80,
"7100", 80,
"5001", 80, /* ASP1 ON, DISTRIB OFF, sample #1, B1 */
"5002", 80,
"5004", 80,
"5008", 80,
"5010", 80,
"9020", 80, /* ASP2, Distrib Off, sample, ON, sample 6, B6 */
0,0, /* end of command array */
};
cp chemcontrol chemcontrol_snowsuck
Mar 23 00:26:47 quacker timeupdate[22932]: Adjusted clock 218 milliseconds forward. RPC calls took 4 milliseconds
Mar 23 00:29:09 quacker chemcontrol: chemcontrol reset: Tue Mar 23 00:29:06 2004
Mar 23 00:29:09 quacker chemcontrol: tnow=1080026949, totalSecs=18600, tStart=17949, startStep=1, startRep=0, startCmd=0, cmdTime=80, twait=11
Tue Mar 23 00:27:40 MST 2004
[cuff@quacker opto22]$ ls -lag | grep chem
-rwxrwxr-x 1 cuff cuff 15428 Oct 26 07:25 chemcommand
-rwxrwxr-x 1 cuff cuff 15428 Oct 26 07:25 chemcommand_airsnow_new
-rw-rw-r-- 1 cuff cuff 1374 Oct 26 07:25 chemcommand.c
-rwxrwxr-x 1 cuff cuff 13238 Oct 14 10:19 chemcommand_old
-rwxrwxr-x 1 cuff cuff 194810 Mar 9 22:39 chemcontrol
-rwxrwxr-x 1 cuff cuff 196953 Dec 17 09:30 chemcontrol_2hour
-rwxrwxr-x 1 cuff cuff 194810 Mar 9 22:39 chemcontrol_airsnow_new
-rw-rw-r-- 1 cuff cuff 6459 Mar 23 00:26 chemcontrol.cxx
-rw-rw-r-- 1 cuff cuff 6364 Mar 9 10:46 chemcontrol.cxx~
-rw-rw-r-- 1 cuff cuff 6364 Mar 9 10:46 chemcontrol_mar9.cxx
-rwxrwxr-x 1 cuff cuff 196953 Dec 17 09:30 chemcontrol_old
-rwxrwxr-x 1 cuff cuff 194810 Mar 1 11:22 chemcontrol_profq_no_6cm
-rwxrwxr-x 1 cuff cuff 197178 Mar 9 10:42 chemcontrol_profq_nocal
-rwxrwxr-x 1 cuff cuff 197067 Feb 26 13:16 chemcontrol_profq_wcal
note: it started this cycle with a calibration:
[~] rserial quacker 210
*** use ^d or ^c to terminate rserial
send socket open to quacker
>00J0800??\r
>00J8000??\r
>00B??\r
>00GFFFF??\r
>00J7001??\r
>00J7002??\r
>00J7004??\r
>00J7008??\r
>00J7010??\r
>00J7020??\r
>00J7040??\r
>00J7080??\r
>00J7100??\r
>00J5001??\r
>00J5002??\r
>00J5004??\r
>00J5008??\r
>00J5010??\r
>00J9020??\r
>00J7001??\r
>00J7002??\r
received interrupt signal (#2)
- 174: hydra, Site hydra, Mon 15-Mar-2004 16:32:11 MST, Hydra Problems
% at Mar 12 14:20 MST i checked the hydra and it didn't seem to be
working...it was working earlier this morning. Note: i noticed that
it was really warm in the licor box (~40C). Anyway, i restarted the
opto22 program and it seems to be working again...ie:
Mar 12 11:58:43 quacker chemcontrol: chemcontrol reset: Fri Mar 12 11:58:40 2004
Mar 12 12:50:09 quacker timeupdate[18998]: Adjusted clock 222 milliseconds forward. RPC calls took 4 milliseconds
Mar 12 13:50:10 quacker timeupdate[18998]: Adjusted clock 222 milliseconds forward. RPC calls took 4 milliseconds
Mar 12 14:25:50 quacker rserial[16549]: Rserial Activate Port 210
Mar 12 14:26:19 quacker rserial[16549]: Rserial Activate Port 208
Mar 12 14:27:15 quacker rserial[16549]: Rserial Activate Port 210
Mar 12 14:36:20 quacker sshd(pam_unix)[19767]: authentication failure; logname= uid=0 euid=0 tty=NODEVssh ruser= rhost=russter user=cuff
Mar 12 14:36:22 quacker sshd[19767]: Failed password for cuff from 10.0.0.1 port 34249 ssh2
Mar 12 14:36:26 quacker sshd[19767]: Accepted password for cuff from 10.0.0.1 port 34249 ssh2
Mar 12 14:36:27 quacker sshd(pam_unix)[19769]: session opened for user cuff by (uid=500)
Mar 12 14:37:14 quacker chemcontrol: caught signal Hangup, resetting opto22...chemcontrol reset: Fri Mar 12 14:37:11 2004
Mar 12 14:37:45 quacker chemcontrol: chemcontrol reset: Fri Mar 12 14:37:42 2004
Mar 12 14:37:45 quacker chemcontrol: tnow=1079127465, totalSecs=10680, tStart=9585, startStep=0, startRep=5, startCmd=13, cmdTime=80, twait=55
Mar 12 14:38:39 quacker rserial[16549]: Rserial Activate Port 210
- 168: hydra, Site hydra, Wed 03-Mar-2004 14:56:36 MST, some hydra programs/commands on Feb 20th...
Fri Feb 20 13:57:43 MST 2004
[cuff@quacker opto22]$ ls -lag | grep chem
-rwxrwxr-x 1 cuff cuff 15428 Oct 26 07:25 chemcommand
-rw-rw-r-- 1 cuff cuff 1374 Oct 26 07:25 chemcommand.c
-rwxrwxr-x 1 cuff cuff 13238 Oct 14 10:19 chemcommand_old
-rwxrwxr-x 1 cuff cuff 197067 Feb 20 13:51 chemcontrol
-rwxrwxr-x 1 cuff cuff 196953 Dec 16 18:36 chemcontrol_2hour
-rwxr-xr-x 1 root cuff 196226 Nov 12 16:54 chemcontrol_airsnow_calnormal
-rw-rw-r-- 1 cuff cuff 6366 Feb 20 13:50 chemcontrol.cxx
-rw-rw-r-- 1 cuff cuff 6267 Nov 7 15:57 chemcontrol.cxx~
-rwxrwxr-x 1 cuff cuff 197067 Feb 20 13:51 chemcontrol_profq
-rwxrwxr-x 1 cuff cuff 196953 Dec 17 09:30 chemcontrol_usual
[cuff@quacker opto22]$ make
g++ -g chemcontrol.cxx -o chemcontrol
[cuff@quacker opto22]$ ls -lag | grep Feb
drwxrwsr-x 3 cuff cuff 4096 Feb 20 13:57 .
-rwxrwxr-x 1 cuff cuff 197067 Feb 20 13:51 chemcontrol
-rw-rw-r-- 1 cuff cuff 6366 Feb 20 13:50 chemcontrol.cxx
-rwxrwxr-x 1 cuff cuff 197067 Feb 20 13:51 chemcontrol_profq
-rw-rw-r-- 1 cuff cuff 5349 Feb 20 13:35 cmds.c
-rw-rw-r-- 1 cuff cuff 286 Feb 20 13:42 profquick.c
- 154: hydra, Site hydra, Sun 04-Jan-2004 12:24:15 MST, Changed Hydra Sampling Scheme (for one night)
On the night of Dec 16-17 the hydra sampling was decreased:
----------------------------------------------------
Tue Dec 16 18:37:08 MST 2003
recompiled the opto22 code to do snow samples about every
2 hours:
-rw-rw-r-- 1 cuff cuff 523 Dec 16 18:36 airsnow.c
-rw-rw-r-- 1 cuff cuff 523 Dec 16 18:32 airsnow.c~
-rw-rw-r-- 1 cuff cuff 340 Dec 16 18:11 airsnow_halfhour.c
-rwxrwxr-x 1 cuff cuff 196953 Dec 16 18:36 chemcontrol
-rw-rw-r-- 1 cuff cuff 4974 Dec 16 18:16 cmds.c
-rw-rw-r-- 1 cuff cuff 4933 Dec 16 18:15 cmds.c~
[cuff@quacker opto22]$ more airsnow.c
/* OPTO HEADER FILE
* This is a header file used by the OPTO22 software
*/
struct commandSet optoProgram[] =
{
air15min,8, /* 15 * 8 = 120 minutes = 2 hours */
airsnow30min,1, /* 30 * 1 = 30 minutes = 0.5 hours */
air15min,2, /* 15 * 2 = 30 minutes = 0.5 hours */
air15min,8, /* 15 * 8 = 120 minutes = 2 hours */
cal10min,1, /* 8 minutes */
airsnow30min,1, /* 20 * 12 = 240 minutes = 4 hours */
airsnow20min,1, /* 20 * 12 = 30 minutes = 4 hours */
reset,1,
};
where air15min is:
struct command air15min[] =
{
/* air sampling, 4 minutes */
"8000", 120, /* 1minute, suck air */
"1020", 60, /* ASP2 OFF, Distrib Off, sample, ON, sample 6, B6 */
"1040", 60, /* ASP2 OFF, Distrib Off, sample, ON, sample 7, B7 */
"1080", 60, /* ASP2 OFF, Distrib Off, sample, ON, sample 8, B8 */
"1100", 60, /* ASP2 OFF, Distrib Off, sample, ON, sample 9, B9 */
"0000", 300, /* 5minute, do nothing */
"9020", 60, /* ASP2, Distrib Off, sample, ON, sample 6, B6 */
"9040", 60, /* ASP2, Distrib Off, sample, ON, sample 7, B7 */
"9080", 60, /* ASP2, Distrib Off, sample, ON, sample 8, B8 */
"9100", 60, /* ASP2, Distrib Off, sample, ON, sample 9, B9 */
0,0, /* end of command array */
};
---------------------------------------------
Wed Dec 17 09:24:35 MST 2003
went to:
[cuff@quacker opto22]$ more airsnow.c
/* OPTO HEADER FILE
* This is a header file used by the OPTO22 software
*/
struct commandSet optoProgram[] =
{
airsnow30min,8, /* 30 * 8 = 240 minutes = 4 hours */
cal10min,1, /* 8 minutes */
airsnow30min,1, /* 20 * 12 = 240 minutes = 4 hours */
airsnow20min,1, /* 20 * 12 = 30 minutes = 4 hours */
reset,1,
};
note this was a modified version of:
[cuff@quacker opto22]$ more airsnow_halfhour_orig.c
/* OPTO HEADER FILE
* This is a header file used by the OPTO22 software
*/
struct commandSet optoProgram[] =
{
airsnow30min,12, /* 20 * 12 = 240 minutes = 4 hours */
cal10min,1, /* 8 minutes */
airsnow30min,1, /* 20 * 12 = 240 minutes = 4 hours */
airsnow20min,1, /* 20 * 12 = 30 minutes = 4 hours */
reset,1,
};
***NOTE: math was not correct in above...."airsnow30min,12" takes 6 hours...NOT FOUR!!
[cuff@quacker opto22]$ ls -lag | grep Dec
drwxrwsr-x 3 cuff cuff 4096 Dec 17 09:30 .
-rw-rw-r-- 1 cuff cuff 523 Dec 17 09:26 airsnow_2hour.c
-rw-rw-r-- 1 cuff cuff 338 Dec 17 09:26 airsnow.c
-rw-rw-r-- 1 cuff cuff 523 Dec 16 18:32 airsnow.c~
-rw-rw-r-- 1 cuff cuff 338 Dec 17 09:23 airsnow_halfhour.c
-rw-rw-r-- 1 cuff cuff 340 Dec 16 18:11 airsnow_halfhour_orig.c
-rwxrwxr-x 1 cuff cuff 196953 Dec 17 09:30 chemcontrol
-rwxrwxr-x 1 cuff cuff 196953 Dec 16 18:36 chemcontrol_2hour
-rw-rw-r-- 1 cuff cuff 4974 Dec 16 18:16 cmds.c
-rw-rw-r-- 1 cuff cuff 4933 Dec 16 18:15 cmds.c~
Dec 17 09:21:05 quacker sshd[5220]: Accepted password for cuff from 10.0.0.1 port 41176 ssh2
Dec 17 09:21:05 quacker sshd(pam_unix)[5222]: session opened for user cuff by (uid=500)
Dec 17 09:22:49 quacker timeupdate[1235]: Adjusted clock 390 milliseconds forward. RPC calls took 357 milliseconds
Dec 17 09:24:09 quacker chemcontrol: caught signal Hangup, resetting opto22...chemcontrol reset: Wed Dec 17 09:24:06 2003
Dec 17 09:29:10 quacker chemcontrol: ./start_opto: /usr/local/cuff/aster/projects/NIWOT/src/opto22/chemcontrol: No such file or directory
Dec 17 09:31:08 quacker chemcontrol: chemcontrol reset: Wed Dec 17 09:31:05 2003
Dec 17 09:31:08 quacker chemcontrol: tnow=1071678668, totalSecs=15000, tStart=3668, startStep=0, startRep=2, startCmd=1, cmdTime=240, twait=52
- 152: hydra, Site quacker, Fri 12-Dec-2003 14:35:20 MST, Opto 22 Commands for Hydra
Here are some of the basic concepts for controlling the opto22/hydra:
The programs which control the hydra on the quacker:
To stop/start the opto22 do:
/usr/local/cuff/src/adam/stop_opto
/usr/local/cuff/src/adam/start_opto
the files which will be run using "start_opto" are:
-rw-rw-r-- 1 cuff cuff 6267 Nov 7 15:57 /usr/local/cuff/aster/projects/NIWOT/src/opto22/chemcontrol.cxx
-rw-rw-r-- 1 cuff cuff 6266 Nov 5 14:24 /usr/local/cuff/aster/projects/NIWOT/src/opto22/chemcontrol.cxx~
-rw-rw-r-- 1 cuff cuff 3854 Nov 21 12:58 /usr/local/cuff/aster/projects/NIWOT/src/opto22/cmds.c
Also, helpful is:
/usr/local/cuff/src/adam/command_opto
(use to send single commands to the opto22)...usage is:
/usr/local/cuff/src/adam/command_opto
Usage: command_opto cmd secs
A few more details:
(8 4 2 1)
Hydra Commands: 0010 0000 0000 0001
1st4bits: AspII AspI Distrib Sample (Asp1=snow, AspII=air, D=1 is A, D=0 is B)
2nd4bits: cal3 cal2 cal1 s9
3rd4bits: s8 s7 s6 s5
last4bits: s4 s3 s2 s1
Example of normal cycle:
struct command airsnow20min[] =
{
/* air and snow sampling, pumps running, 20 minutes (actually 30min) */
"4000", 240, /* ASP1 ON, everything else OFF */
"3001", 80, /* DISTRIB ON, sample #1, A1 */
"3002", 80,
"3004", 80,
"3008", 80,
"3010", 80,
"3020", 80,
"3040", 80,
"3080", 80,
"3100", 80,
"1001", 80, /* DISTRIB OFF, sample #1, B1 */
"1002", 80,
"1004", 80,
"1008", 80,
"1010", 80,
"9020", 80, /* ASP2, Distrib Off, sample, ON, sample 6, B6 */
"9040", 80, /* ASP2, Distrib Off, sample, ON, sample 7, B7 */
"9080", 80, /* ASP2, Distrib Off, sample, ON, sample 8, B8 */
"9100", 80, /* ASP2, Distrib Off, sample, ON, sample 9, B9 */
"0000", 120, /* ASP2, Distrib Off, sample, ON, sample 9, B9 */
0,0, /* end of command array */
};
- 151: hydra, Site hydra, Fri 12-Dec-2003 14:32:11 MST, Hydra Inlet Details
Updated Summary of Instrument Locations: As of: Thu Nov 13 08:48:03 MST 2003
* For Thermocouple, Number= Attached to MUX, Letter= Attached to Soil cr23x.
Site & Desc Snow Temp Probe SoilT Soil Moisture Thermocouple Flux Plate Hydra Name
----------- --------------- ----- ------------- ------------ ------------------------- ------------
1, 2x Open Long, 18.5cm in #1 #1 #1 (near SMois, 3 splices) A1
ground. #9 (near snowT, 1 splice)
2, Open #2 #2 A2
3, air (260 cm) B9
4, open #7 (N of inlet) A3
(closest to N Canopy Tower)
5, open Short, 14cm deep #4 #2 #12 (S of inlet) #3 A4
#13 (inside box)
6, air (142 cm) B8
7, Tree #3 #9 (between 7-8) #4 A5
#10 (N of inlet)
8, Open #4 #6 (N of inlet) #6 A6
#8 (inside box)
9, Tree #5 #5 #4 (near tree) #5 A7
10, Long, 20cm deep. #3 #7 A #7 (East of SMois) A8
(Snow Profile, 6cm) #10 (W of SMois)
11, air (243 cm) B7
12, 2X Open #8 B (near inlet) A9
(farthest away from N Canopy Tower) C (inside box)
13, Snow Profile, (17 cm) B1
14, Snow Profile, (57 cm) B2
15, Snow Profile, (122 cm) B3
16, Snow Profile/Air, (166 cm) B6
17, Tree #6 #1 (base of tree) B4
#2 (2 feet east of base)
18, Open #3 (in clearing) #8 B5
Lefer/Swanson Plot #11
- 149: hydra, Site none, Fri 12-Dec-2003 14:20:24 MST, How to do a snow pit
Snow Pit Technique:
------------------
fill in "snow cover profile" form. (forms and pit kit are in
the CU trailer).
1. Dig Pit
2. Boot Penetration (measure depth of boot impression).
3. Measure snow pit depth
4. Do air temperature (compare probes)
5. Tare scale with the 1 liter snow wedge (~740 g)
6. Do layer temps at 5 cm increments (in middle of 10-cm layers)
7. Do density measurements in 10cm segments (ie, 0-10, 10-20, etc).
8. test for layers
9. look at snow grains from layers.
- 148: hydra, Site hydra, Fri 12-Dec-2003 14:13:43 MST, Snow Pit Table -- Nov - May, 2004
This is a table of snow pit observations made at the Hydra site near the
CU Ameriflux tower.
Observers are: SpB= Sean Burns, BB= Brant Backlund, AO= Andy O'Reilly
Time Air Cloud
Date DOY Observer(s) (MST) Temp Cover Precip Wind Spd/Dir Surface Hardness Pit Depth
------ --- ----------- ------ ----- ----- ------- ------------- ----------------- -----------
040503 124 SpB 17:00 3.0C 80% none calm 76cm
040424 115 SpB 12:50 4.0C 0% none 5-10 m/s, west 112cm
040419 110 BB 11:30 6.0C 10% none 0 85cm
040412 103 BB 12:00 -1.0C 0% none 20mph, breezy 130cm
040401 92 SpB 16:00 5.2C 85% none 0-5 m/s, east 64cm
040326 86 SpB 15:00 4.2C 90% none 0-5 m/s 67cm
040317 77 SpB 16:45 -1.8C 10% none 15-25 m/s (west) 86cm
040309 69 BB 14:30 5.0C 0% none breezy 70cm, Boot P. 94cm
040226 57 SpB 16:26 -0.4C 70% none calm 77cm
040220 51 SpB 16:00 -7.1C 30% none dead calm 85cm
040213 44 BB 14:00 -6.0C 0% none calm 55m, Boot P. 72cm
040206 37 SpB 15:50 -12.5C 10% blowing snow gusty (20-25mph) 77cm
040130 30 SpB 13:45 -2.0C 50% none small gusts (0-7m/s) 30cm, Boot P. 47cm
040123 23 SpB 14:35 -2.0C 100% none calm 30cm, Boot P. 50cm
040115 15 BB 10:45 -2.0C 80% none calm 36cm, Boot P. 49cm
040108 8 BB 11:00 -5.0C 100% light snow very windy (20-30mph) 30cm, Boot P. 51cm
040102 2 SpB 15:14 -6.5C 100% light snow 0-5 m/s, West 30cm, Boot P. 41cm
031228 362 BB 11:00 -15.0C 100% none very windy 22cm, Boot P. 34cm
031217 351 SpB 14:00 -4.0C clear none 15-20 m/s 21cm, Boot P. 33cm
031211 345 SpB,BB 11:00 -8.0C 70% none calm 30cm, Boot P. 38cm
031205 339 SpB,BB,AO 9:30 -3.5C clear none calm 20cm, Boot P. 21cm
031117 321 SpB,BB,AO 9:30 -4.5C 100% snowing 0-3 m/s West 14cm, Boot P. 18cm
------------------------------------------------
Density/Temperature Table:
(g of snow (per 1 liter?) & layer Temperature C)
Depth Ranges (cm)
Date ground 0 - 10 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - 80 80 - 90 90 - 100 100 - 110 110 - 120 120 - 130
------ ------- --------- --------- --------- --------- --------- --------- --------- --------- --------- --------- --------- --------- ---------
040503 NA -0.8 400 -0.8 340 -0.8 366 -0.8 377 -0.9 420 -0.9 404 -0.8 394 -0.8 NA -0.7
040425 NA 0.4 NA 0.4 335 0.4 313 0.4 331 0.4 375 0.3 369 0.1 325 -0.1 323 -0.5 169 -0.9 179 -1.0 148 0.1 NA 0.1
040419 NA 0 388 0 398 0 364 0 320 0 375 0 377 0 338 0 322 0 NA 0
040412 NA 1 408 0 301 0 272 0 312 0 367 -1 393 -1 390 0 252 -1 212 -1 192 -2 122 -2 96 -3 99 -1
040401 NA -0.2 330 -0.3 254 -0.2 300 -0.2 316 -0.3 378 -0.2 386 -0.3 NA -0.2
040326 NA -0.5 310 -0.4 247 -0.4 314 -0.5 326 -0.4 345 -0.4 345 -0.4 348 -0.3 NA -0.2
040316 NA -1.2 260 -1.3 268 -1.3 310 -2.0 309 -2.8 309 -3.0 338 -3.0 272 -3.0 193 -2.6 201 -2.9 NA -2.9
040309 NA -1.4 266 -1.7 276 -2.2 248 -2.2 290 -2.5 261 -1.9 276 -2.2 229 -3 221 0 132 -2 NA 0
040226 NA NA 326 -1.8 281 -2.6 258 -2.6 283 -3.2 217 -4.3 157 -4.3 161 -3.3 146 -2.7 NA -0.4
040220 NA -2.1 287 -2.7 278 -2.8 268 -3.1 275 -3.5 256 -4.0 213 -4.6 165 -9 105 -5.3 91 -6.7 NA -7.1
040213 NA NA 250 -3 248 -4 268 -5 223 -6 224 -8 185 -9 125 -9 NA -8
040206 NA -2 296 -3 244 -4.5 255 -6 282 -6 165 -7 107 -9.5 107 -11.5 68 -11.5 NA -15
040130 NA -1 310 -2 244 -4.5 245 -4.5 268 -5.0 214 -4.5 NA -4.0
040123 NA -3 275 -4.0 278 -5.5 261 -5.5 247 -5 167 -4 NA -3
040115 NA -1 245 -2 241 -3 238 -5 226 -6 225 -6 NA -4
040108 NA -2.0 301 -2 275 -4 213 -4 206 -5 142 -6 NA -7
040102 NA -2.0 268 -3.5 206 -5.0 245 -5.0 94 -6.0 NA -6.5
031228 NA -4.0 260 -5.0 232 -9.0 168 -10.0 NA -14.0
031217 NA -2.0 233 -4.0 258 -6.0 189 -5.0 NA -6.0
031211 NA -1.0 237 -2.0 220 -4.0 187 -6.0 105 -7.0 NA -9.0
031205 NA -3.0 266 -5.0 238 -8.0 NA -8.5
031117 NA 0 200 -2.0 196 -2.0 NA -2.0
Comments:
---------
05/03: tare= 738g. very warm today. depth hoar starts somewhere between 20-30cm.
layers at: 76, 65, 40 (very hard ice layer), and 25cm (below 25cm it's
all depth hoar).
04/25: tare= 737g. It snowed ~38-60cm the past 3 days. Serious ice layer at 80cm.
layers at: 112 (powder above here), 80 (very hard ice layer), 52 (very hard ice layer),
and 37cm (below 37cm it's all depth hoar).
04/19: layers at: 85, 75, 58, 45, 40, 18cm (ET 58-85, TG below 58cm, grain size ~ 6-8mm). Clouds are high/thin.
04/12: tare= 742 g. layers at: 130, 125, 100, 90, 70, 60, 40cm (ET 90-130, TG below 90cm).
04/01: tare= 736g. Somewhere between 30-40cm sugar snow starts. It's been very
warm the past few days (around 40-45F).
layers at: 62, 58 (very hard layer), and 41cm (below 41cm it's all depth hoar).
03/26: tare= 735g. Below 30-40cm is sugar snow. We are getting toward the far
end of our clearing...snow depth is decreasing for this reason as well as
melting. layers at: 65 and 40cm
03/17: tare= 732g. Below 42cm all sugar snow. Hard layer at 82cm.
layers at: 82, 58, 42cm
03/09: layers at: 89, 70, 62, 50, 25, 10cm
02/26: tare=734g. It's been quite warm the past several days. Not much new snow since
last week. Ice layers at: 61,57, and 50cm.
Sugar snow is below about 30cm.
02/20: tare=736g. Snowed about 10" in the last 24 hours (Thurs). Very warm on Tues/Wed.
Sugar snow is below about 45cm. (Started using the thermocouple for snow Temp, on
Andrews recommmendation).
02/13: tare=739g. layers at: 66, 61, 52, 45, 35, 19, 10cm
02/06: tare=739g. end tare=739g.
01/30: tare=738g. end tare=738g. layers at 47, 42, 23cm
01/23: tare=738g. end tare=736g. layers at 50, 44, 30cm
01/15: tare=739g. layers at 47,42,37,25,15,9cm
01/08: tare=739g. layers at 46, 40, 30, 23, 10cm
01/02: tare=740g. (at end tare~-732g). Layers at 17 and 31cm. Top 10cm was light, fresh
snow.
12/28: tare=726g. (at end tare~-735g). Layers at 7,21, and 30cm.
12/17: tare=730g. Layers at 13,18, and 33cm. Lots of rocks at the bottom of the pit. Very
windy the past 2 days. Some spots in the forest have a hard, crusty snow surface, but
our pit area had soft snow.
12/11: tare=737g. (at end tare~-740g). Layers at 9,18, and 26cm. Lots of fresh new snow.
12/05: tare=743gg. Layer at 14 cm. Sugar snow at ground.
11/17: Andy showed Brant and I how to do the snow pit. tare=755g. Layers at 3 and 17cm. Snow
was falling all day.