Ground-based frequency domain electromagnetic (FDEM) data from the Illinois River Basin in support of the USGS Next Generation Water Observing System (NGWOS)

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: July 16, 2025 | Last Modified: 20240829

This data release contains frequency domain electromagnetic (FDEM) geophysical data collected in fields and forests near and along the banks of the Kankakee River near Hanna, Indiana to observe near surface (top 10 meters or less) electrical conductivity variations, potentially related to soil moisture, lithology, and/or pore fluid conductivity. Both a GEM-2 and a DualEM-421 instrument were used. Raw data, processed inversions (electrical conductivity versus depth), data dictionaries and README files for each instrument are contained in the attached files.

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Complete Metadata

@id	http://datainventory.doi.gov/id/dataset/e94b8e0cec7512e10c96534591d2fa0d
bureauCode	[ "010:12" ]
identifier	USGS:661d3181d34e7eb9eb7e3956
spatial	-86.717389,41.389651,-86.692537,41.402688
theme	[ "geospatial" ]

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