Modified DRAINMOD for random and irregular networks (MODRAIN)

K. I. Christopher, Richard A C Cooke

Research output: Contribution to conferencePaperpeer-review

Abstract

Randomly spaced tile drainage systems are the norm rather than the exception in Central Illinois and many parts of the Midwest. However, the drainage equations used in most models are based on the assumption of parallel drainage systems. These models are used with random systems by replacing the spacing parameter by the effective region of influence of a single tile. This paper describes another approach to modeling random systems, in which equations that are based on the assumption of parallel tiles are replaced by equations that have been specifically developed for randomly spaced subsurface drainage systems. These equations were incorporated as a random system option into an old (1985) version of DRAINMOD. A simulation study using the revised model with 4 to 6 years of weather data from Urbana, IL, and 4 to 6 years of flow data from Little Vermilion River Watershed sites, determined the applicability of the new option. The modified model has the potential to explain drainage patterns more precisely when there is random tile spacing without affecting the performance of the model with parallel tile systems.

Original languageEnglish (US)
Pages2741-2754
Number of pages14
StatePublished - Dec 1 2000
Event2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century - Milwaukee, WI., United States
Duration: Jul 9 2000Jul 12 2000

Other

Other2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century
CountryUnited States
CityMilwaukee, WI.
Period7/9/007/12/00

Keywords

  • DRAINMOD
  • Single tile drainage

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Modified DRAINMOD for random and irregular networks (MODRAIN)'. Together they form a unique fingerprint.

Cite this