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This article in SSSAJ

  1. Vol. 38 No. 3, p. 383-386
     
    Received: Sept 18, 1973
    Published: May, 1974


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doi:10.2136/sssaj1974.03615995003800030008x

Time-Dependent Linearized Infiltration. I. Point Sources1

  1. A. W. Warrick2

Abstract

Abstract

Water flow from a point source is analyzed using a linearized form of the moisture flow equation. Time-dependence is assumed with the results simplifying to those of previous investigators for steady-state conditions. Discrete time-distributed inputs such as might occur for trickle or high frequency irrigation is amenable to the solution. Numerical simulations include (i) the advance of a wetting front during infiltration, (ii) moisture variation resulting from a cyclic input as during irrigation, and (iii) the matric flux potential field for a two-source problem.

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