Ground-based transient electromagnetic data and resistivity models at selected sites of the California Central Coast and San Joaquin Valley 2019

Ground-based transient electromagnetic (TEM) data were acquired by the U.S. Geological Survey (USGS) at 16 locations of California’s southwestern San Joaquin Valley and Central Coast regions to define the electrical resistivity structure of hydrogeologic materials. Data were acquired using the ABEM WalkTEM system (Guideline Geo Ab, Sundbyberg, Sweden). TEM data were processed and numerically inverted to derive one-dimensional resistivity structure using SPIA (Aarhus Geosoftware, Aarhus, Denmark). The resulting models reveal vertical variations in electrical resistivity associated with geologic structure and zones of high salinity groundwater. This release includes raw and processed TEM data and a resistivity model...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CAWSC, COGG, California, California Oil Gas and Groundwater, California Water Science Center, All tags... Cat Canyon Oil Field, Central Coast, Electromagnetic sounding, Elk Hills Oil Field, GGGSC, GPS measurement, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Kern County, Lost Hills Oil Field, Monterey County, San Ardo Oil Field, San Joaquin Valley, Santa Barbara County, TDEM, TEM, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Quality, Water Resources, electromagnetic surveying, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, resistivity, time-domain electromagnetic method, transient electromagnetic method, Fewer tags