Annual repeat magnetotelluric data for monitoring The Geysers Geothermal Field, California (2021-2023)
The Geysers geothermal field in northern California is currently the largest energy producing steam field in the world. To better understand temporal subsurface changes in the steam field a geophysical monitoring project including continuous passive seimsic and repeat magnetotelluric measurements was funded by the California Energy Commission and led by Lawrence Berkeley National Lab. As one task of the project, the U.S. Geological Survey collected magnetotelluric data annually between 2021-2023 at approximately the same 50 locations depending on accessibility. The raw time series and processed transfer functions from annual repeat surveys in 2021 (55 stations), 2022 (50 stations), and 2023 (52 stations) are included in this data release. Data are formatted as MTH5 files (Peacock et al., 2022, https://doi.org/10.1016/j.cageo.2022.105102), where each HDF5 file includes all the data for a single repeated station including the time series sampled at field sampling rates and a combined sample rate of 1 sample per second, and transfer function for each year data was collected. All transfer functions, in EDI and EMTF XML, and an image of each transfer function are included in a ZIP file.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Jared Peacock", "@type": "vcard:Contact", "hasEmail": "mailto:jpeacock@usgs.gov" } |
| description | The Geysers geothermal field in northern California is currently the largest energy producing steam field in the world. To better understand temporal subsurface changes in the steam field a geophysical monitoring project including continuous passive seimsic and repeat magnetotelluric measurements was funded by the California Energy Commission and led by Lawrence Berkeley National Lab. As one task of the project, the U.S. Geological Survey collected magnetotelluric data annually between 2021-2023 at approximately the same 50 locations depending on accessibility. The raw time series and processed transfer functions from annual repeat surveys in 2021 (55 stations), 2022 (50 stations), and 2023 (52 stations) are included in this data release. Data are formatted as MTH5 files (Peacock et al., 2022, https://doi.org/10.1016/j.cageo.2022.105102), where each HDF5 file includes all the data for a single repeated station including the time series sampled at field sampling rates and a combined sample rate of 1 sample per second, and transfer function for each year data was collected. All transfer functions, in EDI and EMTF XML, and an image of each transfer function are included in a ZIP file. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P14BJG2A", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.66215abed34e7eb9eb7f959b.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_66215abed34e7eb9eb7f959b |
| keyword |
[ "California", "Cenozoic", "Clear Lake Volcanic Field", "Cretaceous", "Jurassic", "Lake County", "MT", "Mesozoic", "Quaternary", "Sonoma County", "Tertiary", "The Geysers", "The Geysers Geothermal Field", "Triassic", "USGS:66215abed34e7eb9eb7f959b", "apparent resistivity", "conductivity", "electromagnetic surveying", "exploration", "geologic structure", "geophysics", "geoscientificInformation", "impedance", "magnetic field (earth)", "magnetotelluric surveying", "magnetotellurics", "monitoring", "phase", "tectonics", "time series" ] |
| modified | 2025-09-15T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -122.71676, 38.76193, -122.88747, 38.86684 |
| theme |
[ "geospatial" ] |
| title | Annual repeat magnetotelluric data for monitoring The Geysers Geothermal Field, California (2021-2023) |
