Geoscience Reference
In-Depth Information
(a)
(b)
(c)
Figure B5.3.1
Discretisations of a hillslope for approximate solutions of the subsurface flow equations:
(a) Finite element discretisation (as in the IHDM); (b) Rectangular finite difference discretisation (as used
by Freeze, 1972); (c) Square grid in plan for saturated zone, with one-dimensional vertical finite difference
discretisation for the unsaturated zone (as used in the original SHE model).
