Airborne electromagnetic and magnetic survey, southwestern San Joaquin Valley near Lost Hills, California, 2016
Dates
Publication Date
2020-02-25
Start Date
2016-10-05
End Date
2016-10-08
Citation
Ball, L.B., 2020, Airborne electromagnetic and magnetic survey, southwestern San Joaquin Valley near Lost Hills, California, 2016: U.S. Geological Survey data release. https://doi.org/10.5066/F7G44PKR
Summary
Airborne electromagnetic (AEM) and magnetic survey data were collected during October 2016 along 1,443 line kilometers in the southwestern San Joaquin Valley near Lost Hills, California. These data were collected in support of groundwater salinity mapping and hydrogeologic framework development as part of the U.S. Geological Survey California Oil, Gas, and Groundwater program and the California State Water Resources Control Board’s Program of Regional Monitoring of Water Quality in Areas of Oil and Gas Production. Data were acquired by SkyTEM ApS with the SkyTEM 312 time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was designed to cover the region hydrogeologically [...]
Summary
Airborne electromagnetic (AEM) and magnetic survey data were collected during October 2016 along 1,443 line kilometers in the southwestern San Joaquin Valley near Lost Hills, California. These data were collected in support of groundwater salinity mapping and hydrogeologic framework development as part of the U.S. Geological Survey California Oil, Gas, and Groundwater program and the California State Water Resources Control Board’s Program of Regional Monitoring of Water Quality in Areas of Oil and Gas Production. Data were acquired by SkyTEM ApS with the SkyTEM 312 time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was designed to cover the region hydrogeologically downgradient and within 5 km of the Lost Hills, North Belridge, and South Belridge oil fields. Additional lines were extended to the west, east, and south for hydrogeologic context. The AEM typical maximum depth of investigation is about 300 m. The survey was flown at a nominal flight height of 35 m above terrain along block-style lines with a nominal spacing of 150 to 300 m.
This data release includes minimally processed (raw) AEM and raw/processed magnetic data, fully processed AEM data used for resistivity model development, and laterally constrained inverted resistivity models along all flight lines.
Ball, L.B., Davis, T.A., Minsley, B.J., Gillespie, J.M., and Landon, M.K., 2020, Probabilistic categorical groundwater salinity mapping from airborne electromagnetic data adjacent to California’s Lost Hills and Belridge oil fields: Water Resources Research, https://doi.org/10.1029/2019WR026273.
These data were collected to improve the understanding of groundwater salinity and geologic structure near the Lost Hills, North Belridge, and South Belridge oil fields.
