Regional estimation of total recharge to ground water in Nebraska

Jozsef Szilagyi, F. Edwin Harvey, Jerry F. Ayers

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Naturally occurring long-term mean annual recharge to ground water in Nebraska was estimated by a novel water-balance approach. This approach uses geographic information systems (GIS) layers of land cover, elevation of land and ground water surfaces, base recharge, and the recharge potential in combination with monthly climatic data. Long-term mean recharge > 140 mm per year was estimated in eastern Nebraska, having the highest annual precipitation rates within the state, along the Elkhorn, Platte, Missouri, and Big Nemaha River valleys where ground water is very close to the surface. Similarly high recharge values were obtained for the Sand Hills sections of the North and Middle Loup, as well as Cedar River and Beaver Creek valleys due to high infiltration rates of the sandy soil in the area. The westernmost and southwesternmost parts of the state were estimated to typically receive < 30 mm of recharge a year.

Original languageEnglish
Pages (from-to)63-69
Number of pages7
JournalGround Water
Volume43
Issue number1
DOIs
Publication statusPublished - Dec 1 2005

ASJC Scopus subject areas

  • Water Science and Technology
  • Computers in Earth Sciences

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