Depth (cm) | Test site 1 | Test site 2 | Test 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*) | ||||
ϖ | θ | θ | (%) | ϖ | θ | θ | (%) | ϖ | θ | θ | (%) | |
10 | 0.192 +/− 0.022 | 26.6 | 27.8 | 4.4 | 0.180 +/− 0.009 | 25.5 | 23.1 | 10.2 | 0.180 +/− 0.013 | 22.0 | 20.3 | 8.5 |
20 | 0.172 +/− 0.014 | 22.9 | 24.3 | 5.6 | 0.166 +/− 0.004 | 23.0 | 23.3 | 1.4 | 0.136 +/− 0.06 | 19.7 | 19.2 | 2.5 |
30 | 0.184 +/− 0.005 | 25.6 | 23.5 | 8.9 | 0.141* | 18.1 | 22.1 | 18.1 | 0.165 +/− 0.010 | 20.9 | 19.2 | 9.1 |
40 | 0.171 +/− 0.032 | 24.4 | 24.6 | 0.8 | 0.170 +/− 0.013 | 22.3 | 23.2 | 3.8 | 0.142 +/− 0.210 | 19.4 | 18.9 | 2.8 |
Total | 4.9 +/− —3.3 | 8.4 +/− 7.5 | 5.7 +/− 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.