An electrical device for computing theoretical draw-downs of ground-water levels

Open-File Report 55-149
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Abstract

The construction, calibration and use of an electrical "slide rule" for computing theoretical drawdowns of ground-water levels are described. The instrument facilitates the computation of drawdowns under given conditions of discharge or recharge by means of the Theis nonequilibrium equation. It is simple to construct and use and can be a valuable aid in ground-water studies.   

Publication type Report
Publication Subtype USGS Numbered Series
Title An electrical device for computing theoretical draw-downs of ground-water levels
Series title Open-File Report
Series number 55-149
DOI 10.3133/ofr55149
Year Published 1955
Language English
Publisher U.S. Geological Survey
Description 13 p.
Online Only (Y/N) N
Additional Online Files (Y/N) N
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