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Electromagnetic Induction Methods for Water Management Enhancement
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: 2009 Reno, Nevada, June 21 - June 24, 2009 095580.(doi:10.13031/2013.26920)
Authors: Muhammad Arshad, Qamar Uz Zaman, Kishore C Swain, Ali Madani, Peter Havard, Arnold W Schumann
Keywords: Groundwater, EMI, DGPS, GIS, Ground conductivity, DualEM
Electromagnetic induction (EMI) methods are gaining popularity due to their non-destructive nature, rapid response and ease of integration into mobile platforms. Observation wells, of 2.5m length x 0.05 m diameter were installed to calibrate the DualEM for predicting the groundwater depths within a field in central Nova Scotia. The user interface program was developed in Delphi 5.0 software to store the data from sensor and differential global positioning system (DGPS). The regression model showed significant correlation between the actual groundwater table depths and ground conductivity measured with DualEM with co-efficient of determination (R2 = 0.88; n=15, p<0.01). Surveys were conducted using DualEM and DGPS to map ground conductivity in selected field. The predicted groundwater table maps were generated in ArcView 2.3 GIS software. This information could be used for scheduling irrigation and designing drainage systems within fields.(Download PDF) (Export to EndNotes)