Table 2.
Statistical measures (μ, μ ∗, and σ) of elementary effects method. They are the mean of elementary effects, the mean of absolute values of the elementary effects, and the standard deviation, respectively. Note that θ r is residual volumetric water content, θ s is saturated volumetric water content, K s is saturated hydraulic conductivity, Δz is spatial spacing size, Δt is time-step size, θ L (initial cond) is initial value of volumetric water content, and α, β, A, and B are fitting coefficients.
| μ (%/%) | μ ∗ (%/%) | σ | |
|---|---|---|---|
| θ s | −6.03E + 00 | 6.03E + 00 | 9.48E − 01 |
| B | −1.85E + 00 | 1.85E + 00 | 9.38E − 01 |
| β | −2.07E − 01 | 3.20E − 01 | 3.70E − 01 |
| α | −4.14E − 02 | 1.25E − 01 | 1.47E − 01 |
| Δz | −3.35E − 02 | 3.95E − 02 | 4.56E − 02 |
| Δt | −1.66E − 04 | 5.25E − 04 | 6.21E − 04 |
| θ r | 4.44E − 03 | 3.37E − 02 | 4.02E − 02 |
| A | 3.13E − 01 | 3.13E − 01 | 7.41E − 02 |
| K s | 5.24E − 01 | 5.24E − 01 | 6.73E − 02 |
| θ L(initial cond) | 8.84E − 01 | 8.84E − 01 | 3.05E − 01 |