- 267: SOIL, Site all, Mon 08-Sep-1997 21:47:33 GMT, TRIME Soil Moisture ICs
Soil Moisture IC Report
Date Sample_Time Site# Ic_reading CS615_raw
----------- ----------- ----- ---------- ---------
"1997 Apr 23 19:15" 1 34.70 1.300
"1997 Apr 30 16:36" 1 27.80 1.220
"1997 May 2 20:35" 1 36.40 1.310
"1997 May 8 20:08" 1 41.00 1.320
"1997 May 15 16:06" 1 35.60 1.320
"1997 Apr 23 18:03" 2 36.00 2.660
"1997 Apr 30 18:17" 2 29.30 2.560
"1997 May 2 21:38" 2 36.30 2.750
"1997 May 8 18:03" 2 40.30 2.780
"1997 May 15 17:24" 2 35.50 2.790
"1997 Apr 27 21:49" 3 31.50 1.530
"1997 May 2 17:12" 3 34.60 1.750
"1997 May 6 18:25" 3 29.20 1.600
"1997 May 9 22:08" 3 29.50 1.690
"1997 May 13 19:54" 3 30.10 1.660
"1997 May 19 21:52" 3 34.10 1.840
"1997 Apr 20 19:28" 4 36.10 1.710
"1997 Apr 20 19:32" 4 34.50 1.710
"1997 Apr 25 22:03" 4 33.10 1.630
"1997 Apr 30 20:17" 4 33.00 1.640
"1997 May 2 19:08" 4 42.00 1.780
"1997 May 9 13:52" 4 37.80 1.720
"1997 May 19 16:12" 4 38.40 1.830
"1997 May 23 21:20" 4 34.80 1.740
"1997 May 2 18:11" 5 30.00 2.160
"1997 May 6 17:28" 5 16.05 1.770
"1997 May 9 22:43" 5 22.80 1.990
"1997 May 19 17:15" 5 *******
"1997 Apr 17 21:52" 6 36.50 2.000
"1997 Apr 24 17:39" 6 19.00 2.020
"1997 May 1 15:35" 6 26.30 1.950
"1997 May 2 16:13" 6 26.00 2.430
"1997 May 9 20:20" 6 20.50 2.100
"1997 May 18 21:45" 6 10.50 1.970
"1997 May 6 21:50" 7 26.20
"1997 May 9 23:27" 7 30.80
"1997 May 7 15:40" 8 26.80
"1997 May 9 21:15" 8 38.70
- 203: SOIL, Site all, Tue 13-May-1997 15:06:37 GMT, Soil Moisture Intercomparison Data
Soil Moisture Intercomparison Data
5/25/97 Soil Moisture ICs
Site# Date Time Soil_IC# Ic_reading CS615 CS615_raw Comments
------ -------- ----- -------- ---------- ------ --------- ------------------------------------------------------------
1 4/23/97 19:15 6747 34.7 .42 1.30 36.7+35.3(45deg angle)+32.2(angle)
1 4/30/97 16:36 6747 27.8 .36 1.22
1 5/02/97 20:35 6747 36.4 .44 1.31
1 5/15/97 16:06 6747 35.6 .44 1.32
2 4/23/97 18:03 6747 36.0 2.29 2.66 rocky soil. 38.4+33.7(40 deg angle)=36 avg
2 4/30/97 18:17 6747 29.3 2.10 2.56
2 5/02/97 21:38 6747 36.3 2.45 2.75
2 5/08/97 18:03 6747 40.3 2.51 2.78 taken adjacent rain gauge, sensors are s. of rad stand
2 5/15/97 17:24 6747 35.5 2.52 2.79
3 4/27/97 21:49 6747 31.5 .65 1.53 average of 30.4, 33, 14.5 (top disturbed dirt)
3 5/02/97 17:12 6747 34.6 .90 1.75
3 5/06/97 18:25 6747 29.2 .73 1.60 avg 28.9 +29.4 (got good 45 deg samples)
3 5/09/97 22:08 6747 29.5 .83 1.69
3 5/13/97 19:54 30.1 .79 1.66
3 5/19/97 21:52 6747 34.1 1.01 1.84 34.1 % by volume
4 4/20/97 19:28 6747 36.1 .86 1.71 Crusty on top. Used TRIME hole starter
4 4/20/97 19:32 6747 34.5 .86 1.71 TRIME at 45 deg angle. Used starter rods
4 4/25/97 22:03 6747 33.1 .76 1.63 Avg of two readings. Soil crusty on top
4 4/30/97 20:17 6747 33.0 .78 1.64
4 5/02/97 19:08 6747 42.0 .94 1.78
4 5/09/97 13:52 6747 37.8 .87 1.72
4 5/19/97 16:12 38.4 1.00 1.83
4 5/23/97 21:20 6747 34.8 .89 1.74
5 5/02/97 18:11 6747 30.0 1.45 2.16
5 5/06/97 17:28 6747 16.1 .93 1.77 avg of 12.1+22.1+14.0
5 5/09/97 22:43 6747 22.8 1.21 1.99 soil seemed less dense than other sites. easy to insert prb
5 5/19/97 17:15 ****** ******
6 4/17/97 21:52 6747 36.5 1.75 2.00 Very consistent across depths--but bad raw num?
6 4/24/97 17:39 6747 19.0 1.25 2.02 Averaged 2 readings. Soil is cracking
6 5/01/97 15:35 6747 26.3 1.16 1.95
6 5/02/97 16:13 26.0 1.89 2.43 soil moist - reading seems low but clay soil
6 5/02/97 16:13 6747 26.0 1.89 2.43 soil moist - reading seems low but clay soil
6 5/09/97 20:20 6747 20.5 1.36 2.10
6 5/18/97 21:45 6747 10.5 1.19 1.97
7 5/12/97 15:48 6747 31.9 3.57 1.54 5 min covar avg. q.soilx=35.76%
8 5/11/97 16:20 6747 33.4 1.45 5 min covar avg. q.soil=42.9%
- 83: SOIL, Site all, Wed 23-Apr-1997 16:09:14 GMT, TRIME measurements
Every time that a soil core is taken for Bulk Density/Gravimetric Moisture
Trime measurements should be taken.
A standard procedure to follow.
In the general vicinity of the Dark Horse and the buried soil probes take
a soil core sample. Then within a meter or so of the core take three or four
Trime measurements. Calculate the average value
Enter the values in this logbook entry
Date Site1 Site2 Site3 Site4 Site5 Site6 Site7 Site8
23 Apr 36.6%
- 74: SOIL, Site all, Mon 21-Apr-1997 22:49:39 GMT, Soil moisture probes
Talked to Campbell today about new CS615s versus old CS615s. The new
probes should say "Made In USA" on the plastic case. The manual says
the new probes have 8221-07 on the cable, but this apparently is not
always the case. The labels have a lot number LT#XXXXXX. One of ours
said LT#410739 the 4 was for April, the 10 for the 10th week of the
year, and the 7 for 1997. Any probes made after late 1996 should be
of the new version.
New probes have different responses in dry air and in water. The old
probes read about 1.05 msec in dry air. The new ones seem to read
about 0.75 in dry air.
Here are the PAM probe types:
St1 new
St2 old
St3 new
St4 new (high conductivity soil)
St5 old
St6 old
St7 ??? ASTER
St8 ??? ASTER
Site specific soil calibrations have been generated for sites 1--6 in
$ASTER/apps/sfun/PAM_ROBOT/data/Q.SOILX.q The cals will probably have
to be adjusted somewhat based on TRIME and gravimetric
measurements--especially those at sites 3 and 4 in high conductivity
soil.
- 63: SOIL, Site all, Sun 20-Apr-1997 19:19:31 GMT, Bulk Densities of Soils
In order to use the gravimetric and volumetric soil fraction the bulk
density of dry soil must be determined for each site.
The proceedure to be used utilizes the soil corer.
Load the corer barrel
knotched insert
1 cm insert
3 cm insert
3 cm insert
1 cm insert
Drive the corer into the soil until the topflange is level with the surface.
Return to the base and dissaemble.
Scrape/cut off the ends of the core leaving only the two 3 cm inserts full
Dump the soil into an Al Baby Loaf Pan and take a tared wt
Place the Pan in the soil oven to dry.
Take a tared wt each day until there is a constant wt.
The diameter of the inserts is 2 1/8" = 5.4 cm
Area = 5.4 x 5.4 x 3.14 / 4 = 22.9 cm2
Vol = 22.9 x 6 = 137.4 cm3
Report the Bulk Density as (dried wt/ 137.4 cm3)
The Gravimetric Fraction can also be determined as (1st wt - last wt)/ last wt
Site 1
Sample date 1st wt 2nd wt 3rd wt 4th wt 5th wt Bulk Density Grav Fract
30 Apr 193.1 161.6 160.8 1.17 20.1
08 May 218.1 161.8 161.7 1.177 34.9
Site 2
Sample date 1st wt 2nd wt 3rd wt 4th wt 5th wt Bulk Density Grav Fract
30 Apr 178.7 126.9 126.7 .922 41
08 May 190.2 130.9 131.1 .954 45.1
Site 3
Sample date 1st wt 2nd wt 3rd wt 4th wt 5th wt Bulk Density Grav Fract
20 Aprl 211.8 176.9 176.9 1.287 19.7
27 Apr 179.9 151.3 151.6 151.9 1.106 18.4
09 May 235.0 193.2 193.3 1.407 21.6
19 May 222.6 175.4 175.0 1.274 27.2
Site 4
Sample date 1st wt 2nd wt 3rd wt 4th wt 5th wt Bulk Density Grav Fract
24 Apr 243.6 203.9 203.1 202.5 1.474 20.3
09 May 242.3 190.3 189.2 189.4 1.378 27.9
19 May 258.2 202.6 202.1 1.471 27.8
Site 5
Sample date 1st wt 2nd wt 3rd wt 4th wt 5th wt Bulk Density Grav Fra
21 Apr 193.0 166.5 165.8 166.3 166.5 1.212 15.9
(marginal sample)
28 Apr 158.1 137.7 137.6 1.001 14.9
06 May 163.7 142.4 141.7 141.8 1.032 15.4
9 May 191.4 156.8 156.9 1.142 22.0
(marginal sample)
16 May 159.7 143.7 143.5 144.0 1.048 10.9
19 May 219.6 169.2 169.2 1.231 29.8
Site 6
Sample date 1st wt 2nd wt 3rd wt 4th wt 5th wt Bulk Density Grav Fract
22 Apr 198.8 166.2 167 166.4 1.211 19.4
01 May 199.3 175.5 174.9 174.8 1.277 13.6
09 May 182.8 154.4 154.0 153.9 1.201 18.8
Site 7
Sample date 1st wt 2nd wt 3rd wt 4th wt 5th wt Bulk Density Grav Fract
22 Apr 184.1 157.3 157.2 1.144 17.1
02 May 192.5 146.2 145.5 1.059 32.3
06 May 177.7 146.4 146.0 1.063 21.7
09 May 207.0 164.9 164.9 1.200 25.5
Site 8
Sample date 1st wt 2nd wt 3rd wt 4th wt 5th wt Bulk Density Grav Fract
23 Apr 219.8 182.8 182.1 181 1.317 21.4
01 May 213.3 180.3 1.312 18.3
07 May 215.2 177.3 177.2 1.290 21.4
09 May 230.2 176.4 176.3 1.283 30.6
- 36: SOIL, Site all, Wed 16-Apr-1997 15:54:03 GMT, GRAVIMETRIC SOIL MOISTURE RECORD DIG AND COOK
Soil Moisture Record
Site 1
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
17 Apr A 32.9 24.6 8.3 0.337
B 35.7 26.5 9.2 0.347 0.349
C 35.2 25.8 9.4 0.364
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
A
B
C
Site 2
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
17 Apr A 25.5 17.2 8.3 0.483
B 25.5 17.1 8.4 0.491 0.487
C 22.0 14.8 7.2 0.486
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
A
B
C
Site 3
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
16 Apr A 23.8 19.8 4.0 0.202
B 28.6 23.5 5.1 0.217 0.212
C 28.5 23.4 5.1 0.218
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
A
B
C
Site 4
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
21 Apr I A 25.3 21.6 3.7 0.171
I B 27.9 23.8 4.1 0.172 0.169
I C 27.9 24.0 3.9 0.163
Site 5
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
A
B
C
Site 6
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
17 Apr A 31.1 24.0 7.1 0.296
B 33.7 25.9 7.8 0.301 0.298
C 36.8 28.4 8.4 0.296
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
A
B
C
Site 7
Sample Date Fresh Dried Difference Gravimetric Fraction
15 Apr 97 g g g Mean
A 19.0 14.9 4.1 0.275
B 24.6 19.2 5.4 0.281 0.278
C 27.2 21.3 5.9 0.277
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
A
B
C
Site 8
Sample Date Fresh Dried Difference Gravimetric Fraction
15 Apr 97 g g g Mean
A 30.8 23.2 7.6 0.328
B 28.7 21.7 7.0 0.323 0.332
C 31.5 23.4 8.1 0.346
Sample Date Fresh Dried Difference Gravimetric Fraction
g g g Mean
A
B
C