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Fig. 15 | Earth, Planets and Space

Fig. 15

From: Gravity changes associated with variations in local land-water distributions: Observations and hydrological modeling at Isawa Fan, northern Japan

Fig. 15

Dependency of soil moisture distributions and gravity changes on averaged effective precipitation, P0. For P0 equal to (1) 5.0 × 10−9, (2) 1.0 × 10−8, (3) 1.5 × 10−8 (default value: thick line), (4) 2.0 × 10−8, (5) 3.0 × 10−8 [m/s]. (a) Steady-state soil moisture profile with p = 1.0, θs(Z; p = 1). (b) Time variation of soil moisture at 50 cm below the ground surface with p = 1.0, θ(zs − 0.5, t; p = 1). (c) Gravity changes due to soil moisture distribution, gw(t). Note that estimated time variations match exactly for all precipitation values, and the plots overlap in (b) and (c).

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