Elsevier

Advances in Water Resources

Volume 23, Issue 2, 11 October 1999, Pages 189-194
Advances in Water Resources

Analytical approximation to the solutions of Richards' equation with applications to infiltration, ponding, and time compression approximation

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Abstract

A recent approach to solve Richards' equation is further improved. This approach brings understanding into the physical processes of infiltration and ponding. In particular we apply it to analyze the standard hydrologic tool of Time Compression Approximation (TCA). We also suggest that the new approach provides a more reliable alternative to TCA, e.g. for predicting ponding time.

Keywords

Infiltration
Ponding
Time compression approximation
Richards' equation

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