Soil Surface
0
0
1
Resistivity
1
2
Rings
1
3
Thermocouples
2
4
5
2
5
3
6
3
7
4
8
10
4
9
5
10
5
1"
11
(2.5 cm)
6
12
15
6
13
2"
14
(5.1 cm)
7
15
7
16
20
8
17
18
9
19"
8
(48.3 cm)
PVC
3"
Rod
(7.6 cm)
9
Strain
Reliefs
10
Thermocouples
"L" Brackets
Resistivity Rings
Bottom of Bin
b. Gages mounted over bin liner.
a. Schematic.
Figure 12. Resistivity gages.
30.5 cm
PLAN VIEW
North
H1,2
End
RGD
RGC
H3
Rill
H5
BD 1,2,3
H4
H6
Resistivity Gage (RG)
Bulk Density Core (BD)
Hydra Probe (H)
Thermocouple (TC)
LONGITUDINAL SECTION
Panels
RGD
RGC
Soil Layer #3
BD3
H3
H6
Soil Layer #2
BD2
H5
H2
Soil Layer #1
BD1
H4
H1
Figure 13. Instrument layout.
12
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