Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA

Hydrogeology Journal
By: , and 

Links

Abstract

A frequency-domain electromagnetic (FDEM) survey can be used to select locations for the more quantitative and labor-intensive electrical resistivity surveys. The FDEM survey rapidly characterized the groundwater-flow directions and configured the saline plumes caused by evaporation from several groundwater-dominated lakes in the Nebraska Sand Hills, USA. The FDEM instrument was mounted on a fiberglass cart and towed by an all-terrain vehicle, covering about 25 km/day. Around the saline lakes, areas with high electrical conductivity are consistent with the regional and local groundwater flow directions. The efficacy of this geophysical approach is attributed to: the high contrast in electrical conductivity between various groundwater zones; the shallow location of the saline zones; minimal cultural interference; and relative homogeneity of the aquifer materials.

Study Area

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA
Series title Hydrogeology Journal
DOI 10.1007/s10040-010-0617-x
Volume 18
Issue 6
Year Published 2010
Language English
Publisher Springer
Contributing office(s) OGW Branch of Geophysics, Office of Ground Water, Toxic Substances Hydrology Program
Description 7 p.
First page 1539
Last page 1545
Country United States
State Nebraska
Other Geospatial Nebraska Sand Hills
Google Analytic Metrics Metrics page
Additional metadata about this publication, not found in other parts of the page is in this table