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Time-domain electromagnetic soundings to estimate the extent of saltwater intrusion on Shelter Island, New York (2017-2018)

Metadata Updated: July 6, 2024

Twenty-six time-domain electromagnetic (TDEM) soundings were collected on Shelter Island, New York between March of 2017 and October of 2018.
Soundings were collected using the Geonics ProTEM and ABEM WalkTEM acquisition systems. Depending on the size of the site, one of the following square-loop transmitter geometries was used: 1) 20 by 20 meter, 2) 40 by 40 meter, or 3) 100 by 100 meter. A high-frequency receiver with an effective area of 31.4 m^2 was used with the Geonics ProTEM system. With the ABEM WalkTEM system, a central induction array was used with two square receiver loops (0.5 by 0.5 meters and 10 by 10 meters) setup within the transmitter loop; the two receiver loops created effective receiver areas of 5 m^2 and 200 m^2, respectively. Two to three measurements were made at each site using various time-gate scripts and the data were filtered, stacked 10 times, and averaged. This data release contains XML metadata, a site location map, and the raw and processed TDEM data.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date June 2, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 2, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/50048bb3d3525aeea10c823734f9237d
Identifier USGS:5f06400782ce21d4c3f8aee6
Data Last Modified 20230222
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/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
Harvest Object Id f80d9162-4c09-4e94-b373-3ea0ce48e1d0
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -72.380262,41.049579,-72.293344,41.095066
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 03f1ea6e71ca0297512aeeefcb157cb8816162c480bacbe56b538ce34aa9680b
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -72.380262, 41.049579, -72.380262, 41.095066, -72.293344, 41.095066, -72.293344, 41.049579, -72.380262, 41.049579}

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