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This article in SSSAJ

  1. Vol. 40 No. 5, p. 639-643
     
    Received: Oct 15, 1975
    Published: Sept, 1976


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doi:10.2136/sssaj1976.03615995004000050014x

Time-dependent Linearized Infiltration: III. Strip and Disc Sources1

  1. A. W. Warrick and
  2. D. O. Lomen2

Abstract

Abstract

Water flow from strip and disc surface sources is analyzed using an approach similar to previous investigations with line and point sources. A line of closely spaced trickle irrigation emitters often wets a surface strip of finite width; similarly, for a single emitter the surface wetted pattern is a disc. Lines of equal matric flux potential are wider and more shallow for these sources than wetting patterns for the line and point. The moisture regime is independent of the source shape and depends only on the total flow rate for regions beyond approximately two times the strip width or disc radius.

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