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    • Snake River Plain Geothermal Play Fairway Analysis Project MT Data

    Metadata Updated: January 20, 2025

    MT is measured in the field by using induction coils to measure the time-varying magnetic source for frequencies between 1000-0.001~Hz, and electric dipoles to measure the Earth's electrical response. Because the magnetic source field is polarized, orthogonal directions of the fields need to be measured to get a complete description of the fields. In all measurements collected for this project, induction coils and electric dipoles were aligned with geomagnetic north and east. MT data were collected at 22 stations with a ZEN 32-bit data logger developed by Zonge International, magnetic fields were measured with ANT-4 induction coils, and electric fields where measured with Ag-AgCl reference electrodes from Borin on 50~m dipoles. The data was collected on a repeating schedule of 10~min at 4096~samples/s and 7 hours and 50 minutes at 256 samples/s over a 20-24 hour period. To convert time series data into the frequency domain and get estimations of the impedance tensor, the processing code BIRRP was used (Chave & Thompson 2004). Simultaneous measurements were used as remote references to reduce noise and bias in the data.

    Chave, A. D., & Thomson, D. J. 2004. Bounded inuence magnetotelluric response function estimation. Geophys. J. Int., 157, 988-1006.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: Creative Commons Attribution

    Downloads & Resources

    Dates

    Metadata Created Date January 11, 2025
    Metadata Updated Date January 20, 2025

    Metadata Source

    Harvested from OpenEI data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 11, 2025
    Metadata Updated Date January 20, 2025
    Publisher United States Geological Survey
    Maintainer
    Doi 10.15121/1493809
    Identifier https://data.openei.org/submissions/7252
    Data First Published 2018-05-06T06:00:00Z
    Data Last Modified 2020-01-08T23:26:15Z
    Public Access Level public
    Bureau Code 019:20
    Metadata Context https://openei.org/data.json
    Metadata Catalog ID https://openei.org/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Datagov Dedupe Retained 20250120155001
    Harvest Object Id 6c55805b-6faa-4de3-84ef-e3e900c9a4a9
    Harvest Source Id 7cbf9085-0290-4e9f-bec1-91653baeddfd
    Harvest Source Title OpenEI data.json
    Homepage URL https://gdr.openei.org/submissions/1103
    License https://creativecommons.org/licenses/by/4.0/
    Old Spatial {"type":"Polygon","coordinates":-116.72138671875,42.325776601648,-111.48740234375,42.325776601648,-111.48740234375,44.00190129289,-116.72138671875,44.00190129289,-116.72138671875,42.325776601648}
    Program Code 019:006
    Projectlead Eric Hass
    Projectnumber EE0006733
    Projecttitle Geothermal Play Fairway Analysis of the Snake River Plain, Idaho
    Source Datajson Identifier True
    Source Hash 10302c515841ddb2289d40ab67dc0ba6d927bb97eb474d25a42e8a65962f79aa
    Source Schema Version 1.1
    Spatial {"type":"Polygon","coordinates":-116.72138671875,42.325776601648,-111.48740234375,42.325776601648,-111.48740234375,44.00190129289,-116.72138671875,44.00190129289,-116.72138671875,42.325776601648}

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