Dynamics of depression storage during sprinkler irrigation and precipitation events

Michael B. McKinney, Dean E. Eisenhauer, Suat Irmak, John E. Gilley, William L. Kranz, Derrel L. Martin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Depression storage plays a key role in retaining excess precipitation. When modeling irrigation systems and surface hydrology, depression storage is often treated as static storage, meaning that the maximum storage volume must be filled before overland runoff occurs. However, several researchers have documented that runoff can begin before all depressions fill. The objectives of this study were to (1) analyze the process of dynamic filling of surface depressions and (2) determine the effect of slope and microrelief on maximum depression storage. Plaster of Paris molds of 12 soil surfaces were collected from plots that are part of a tillage study which includes plow, disk, and no-till treatments. The molded surfaces were subjected to a 100mm/hr simulated rain on a bed with adjustable slopes. Dynamic filling of surface depressions was analyzed by measuring depressional storage at points before maximum depressional storage was achieved. An empirical relationship relating depressional storage to precipitation excess is proposed, and suggests that the dynamic nature of depressional storage may be predicted if the maximum depressional storage and excess precipitation hyetograph are known.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012
PublisherAmerican Society of Agricultural and Biological Engineers
Pages616-637
Number of pages22
ISBN (Print)9781622762088
StatePublished - 2012
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012 - Dallas, TX, United States
Duration: Jul 29 2012Aug 1 2012

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012
Volume1

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012
Country/TerritoryUnited States
CityDallas, TX
Period7/29/128/1/12

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Bioengineering

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