Table 2.

Pilot test of moisture content measured with core sampling and surface gauge.

Depth (cm)Test site 1Test site 2Test site 3
Core sampling (n=3)SNG (n = 1)Diff.(θ*)Core sampling (n=3)SNG (n = 1)Diff. (θ*)Core sampling (n=3)SNG (n = 1)Diff. (θ*)
ϖθθ(%)ϖθθ(%)ϖθθ(%)
100.192 +/− 0.02226.627.84.40.180 +/− 0.00925.523.110.20.180 +/− 0.01322.020.38.5
200.172 +/− 0.01422.924.35.60.166 +/− 0.00423.023.31.40.136 +/− 0.0619.719.22.5
300.184 +/− 0.00525.623.58.90.141*18.122.118.10.165 +/− 0.01020.919.29.1
400.171 +/− 0.03224.424.60.80.170 +/− 0.01322.323.23.80.142 +/− 0.21019.418.92.8
Total4.9 +/− —3.38.4 +/− 7.55.7 +/− 3.6
  • * Volumetric moisture content (θ) is calculated by multiplying the gravimetric moisture content (ϖ) with the bulk density (pj) (see Table 1) and dividing by the density of water (pw : θ = (ϖ × pj)/pw.