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An Improved Technique for Determining Soil Electrical Conductivity‐Depth Relations from Above‐ground Electromagnetic Measurements
Author(s) -
Corwin D. L.,
Rhoades J. D.
Publication year - 1982
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1982.03615995004600030014x
Subject(s) - electrical resistivity and conductivity , instrumentation (computer programming) , conductivity , soil salinity , perpendicular , soil science , electromagnetic field , geology , materials science , soil water , geotechnical engineering , environmental science , physics , electrical engineering , engineering , computer science , mathematics , geometry , quantum mechanics , operating system
An improved method has been developed for determining the distribution of bulk soil electrical conductivity, EC a , through the soil from electromagnetic measurements taken at the soil surface with the Geonics Limited EM‐38 device. Induced electromagnetic conductivity readings taken with the EM‐38 device's coil configuration oriented parallel and then perpendicular to the soil surface provided sufficient information, when used with equations derived from geophysical instrumentation data, to produce a soil electrical conductivity‐depth profile. The simplicity of this method further enhances the praiticability of the newly developed electromagnetic technique for field measurements of salinity and for saline seep diagnosis.