PMID: 11916123Mar 28, 2002Paper

Kriging water levels with a regional-linear and point-logarithmic drift

Ground Water
Matthew Tonkin, Steven P Larson

Abstract

Ground water levels measured in the vicinity of pumping wells are kriged using a regional-linear and point-logarithmic drift, the latter derived from the approximation to the Theis equation for drawdown in response to a pumping well. Kriging is widely used throughout the hydrogeologic discipline, most commonly as the preferred method for constructing gridded hydrogeologic datasets suitable for contouring. Residuals arising from using the most common (linear) drift to krige water levels in the vicinity of extraction wells often indicate large local departures from the linear drift, which correlate with areas of drawdown. The combined regional-linear and point-logarithmic drift accounts for these drawdowns using a logarithmic approximation for the curvature of the potentiometric surface. The drift model approximates the principal physical processes that govern ground water flow and ultimately govern the autocorrelation of ground water elevation data. This approach produces maps of contoured water levels that more realistically represent physical conditions and allow for improved interpretation of measured water-level data by including features and information known to be present. Additional benefits include an improved estimate o...Continue Reading

References

Sep 8, 2000·Annals of the Rheumatic Diseases·D I ClarkM Doherty

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Citations

May 26, 2007·Environmental Monitoring and Assessment·Seyed Hamid Ahmadi, Abbas Sedghamiz
Feb 9, 2012·Environmental Monitoring and Assessment·Epsilon A Varouchakis, D T Hristopulos
Jun 21, 2014·Environmental Science and Pollution Research International·Gulcin TugcuMelek Türker Saçan
Apr 12, 2005·Ground Water·Daniel KurtzmanEilon M Adar
Jul 9, 2009·Ground Water·Marinko KaranovicDavid Wilson
Dec 21, 2006·Environmental Monitoring and Assessment·Seyed Hamid Ahmadi, Abbas Sedghamiz
Nov 11, 2009·Administration and Policy in Mental Health·Michael S HurlburtLauren Brookman-Frazee
Sep 16, 2010·Immunological Investigations·Gayathri BalakrishnanBaddireddi Subhadra Lakshmi

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