Modelling of River-Groundwater Interactions under Rainfall Events Based on a Modified Tank Model

Figure 1

River-groundwater interaction under rainfall event: (a) initial state; (b) groundwater level raised by rainfall infiltration and river supply; (c) more rainfall and river supply and overland flow produced; (d) high groundwater table produced by continuous rainfall; (e) groundwater conversely supplies the river level; (f) increased groundwater accelerates the water flow supply to river; (g) overland flow and rainfall infiltration decrease; (h) recovery to the initial state.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)