Distributed, physically based watershed and irrigation advance models
require robust infiltration estimation capabilities. The empirical Gre
en and Ampt (GA) equation of infiltration is a popular method for esti
mating infiltration, The OA. parameters have physical basis and consid
erable prior research has focused on relating these parameters to soil
textural classification. However, the original GB method is limited i
n that it is applicable only for a single pending period. An explicit
Green and Ampt redistribution (GAR) technique is developed herein to e
stimate interstorm redistribution of soil water and allow multiple pen
ding simulations using the GPI. methodology Soil water redistribution
during interponding periods is estimated using the physical constructs
of water retention curves without hysteresis. A GA wetting-front suct
ion parameter scaling function is derived for use between arbitrary so
il water contents. Simulations on 11 soil textural classifications com
paring the GAR method with the numerical solution of Richards equation
reveal that the GAR method is a viable technique for estimating infil
tration for multiple pondings with acceptable error.