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Ground-based electromagnetic survey, Alamosa, Colorado, March 2020

Dates

Publication Date
Start Date
2020-03-09
End Date
2020-03-11

Citation

Hoogenboom, B.E., Pace, D.M., Moulton, C.W., and Minsley, B.J., 2020, Ground-based electromagnetic survey, Alamosa, Colorado, March 2020: U.S. Geological Survey data release, https://doi.org/10.5066/P90DC56I.

Summary

Shallow soil conductivity was mapped in the San Luis Valley, Colorado, using the DualEM421 electromagnetic sensor in March 2020. Data were acquired by towing the DualEM421 sensor on a wheeled cart behind an all-terrain vehicle, with the sensor at a height of 0.457 m above the ground surface. Approximately 62 line-kilometers of data were acquired over an area of nearly 1.5 square kilometers, with 20 m separation between survey lines. Data were manually edited for noise sources (powerlines, pipelines, or other buried structures), and averaged to regular output soundings every 1 m along survey lines. Data were corrected for offset between the recorded GPS location and data locations for each coil pair, but were not corrected for pitch [...]

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Attached Files

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AlamosaDualEM_2020.xml
Original FGDC Metadata

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17.85 KB application/fgdc+xml
AlamosaSurfaceEM2020_DataDictionary_RawData.csv 3.55 KB text/csv
AlamosaSurfaceEM2020_DataDictionary_InvertedResistivity.csv 1.67 KB text/csv
AlamosaSurfaceEM2020_DataDictionary_ProcessedData.csv 3.05 KB text/csv
Dualem_data_acquisition_description.pdf 229.28 KB application/pdf
AlamosaSurfaceEM2020_resistivity_models.pdf 1.78 MB application/pdf
AlamosaSurfaceEM2020_RawData.csv 23.41 MB text/csv
AlamosaSurfaceEM2020_InvertedResistivity.csv 21.99 MB text/csv
AlamosaSurfaceEM2020_ProcessedData.csv 5.08 MB text/csv
Shapefile: AlamosaSurfaceEM2020.zip
AlamosaSurfaceEM2020.shx 370.52 KB
AlamosaSurfaceEM2020.shp 1.27 MB
AlamosaSurfaceEM2020.dbf 972.45 KB
AlamosaSurfaceEM2020.prj 403 Bytes

Purpose

Data were collected in order to assess the feasibility of using frequency-domain electromagnetic surveying to locate efficient aquifer recharge locations in the San Luis Valley, Colorado.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P90DC56I

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