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Permafrost Mapping in Two Wetland Systems North of the Tanana River in Interior Alaska 2014, Field Data

Metadata Updated: July 6, 2024

Surface-based 2D electrical resistivity tomography (ERT) surveys were used to investigate the distribution of permafrost at wetland sites on the alluvial plain north of the Tanana River, 20 km southwest of Fairbanks, Alaska, in June and September 2014. The sites contained habitat types characteristic of interior Alaska, including thermokarst bog, forested permafrost plateau, and a rich fen. These habitats range from treed to open and vary in groundcover vegetation and peat thickness. Individual surveys used a cable with 56 electrodes at 2-m spacing. At a fen site, ERT surveys were performed across a mixed spruce forest area across a vegetation gradient into an open fen area. At a bog site, surveys were performed across a thermokarst bog area bordered by spruce forest and forested permafrost plateau. Some surveys partly overlap in coverage within a season, and some surveys were repeated between seasons. Different electrode array types, including dipole-dipole, extended dipole-dipole, and Wenner-Schlumberger, were compared at some sites. The metadata here specifically describe field data and active layer depth associated with ERT surveys.

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.

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Dates

Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/e8cc93bbc9dc73c1a83a8261a4af15e5
Identifier USGS:5c7d8cfae4b0fe48cb532d12
Data Last Modified 20221117
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 8550803f-2817-42a5-8d9b-999e195cc72f
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -148.33,64.69,-148.3,64.705
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 09d79801b7a435d4bce5197d989a69e4e5bedc06375941dac6538a681f0d4520
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -148.33, 64.69, -148.33, 64.705, -148.3, 64.705, -148.3, 64.69, -148.33, 64.69}

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