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  4. Alaska permafrost characterization: Electrical Resistivity Tomography Data & Models from 2019

Alaska permafrost characterization: Electrical Resistivity Tomography Data & Models from 2019

Dates

Publication Date
Start Date
2019-09-02
End Date
2019-09-05

Citation

James, S.R., Minsley, B.J., Pastick, N.J., and Sullivan, T.D., 2020, Alaska permafrost characterization: Geophysical and related field data collected from 2019-2020: U.S. Geological Survey data release, https://doi.org/10.5066/P9I6VUQV

Summary

Electrical resistivity tomography (ERT) measurements were collected by the U.S. Geological Survey (USGS) at two sites in Interior Alaska in September 2019 for the purposes of imaging permafrost structure and quantifying variations in subsurface moisture content in relation to thaw features. First, ERT data were collected at Big Trail Lake, a thermokarst lake outside of Fairbanks, Alaska, to quantify permafrost characteristics beneath the lake and across its shorelines. Three 222 m ERT survey lines were collected perpendicular to the North, East, and South shorelines, and two 110 m lines were collected parallel to the southeast and northeast shorelines. Models of electrical resistivity produced from these data revealed the distribution [...]

Contacts

Point of Contact :
Stephanie R James
Originator :
Stephanie R James, Burke J Minsley, Neal J Pastick, Taylor D Sullivan
Metadata Contact :
Stephanie R James, GS GGGSC DM Team
Publisher :
U.S. Geological Survey
SDC Data Owner :
Geology, Geophysics, and Geochemistry Science Center
USGS Mission Area :
Ecosystems
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Alaska permafrost characterization_ Electrical Resistivity Tomography Data & Models from 2019.xml
Original FGDC Metadata
View 		22.61 KB application/fgdc+xml
ERT_observations_data_dictionary.csv 1.18 KB text/csv
ERT_InvertedModel_data_dictionary.csv 349 Bytes text/csv
AK2019_ERT_Inverted_Models.zip 33.46 MB application/zip
AK2019_ERT_OriginalData.zip 921.5 KB application/zip
AK2019_ERT_ProcessedData.zip 849.14 KB application/zip
Shapefile: AK2019_ERT_SiteLocations.zip
AK2019_ERT_SiteLocations.shp 14.64 KB
AK2019_ERT_SiteLocations.cpg 5 Bytes
AK2019_ERT_SiteLocations.dbf 489.26 KB
AK2019_ERT_SiteLocations.prj 143 Bytes
AK2019_ERT_SiteLocations.qpj 257 Bytes
AK2019_ERT_SiteLocations.shx 4.25 KB

Purpose

These data were collected to characterize subsurface properties related to permafrost and soil moisture at sites where permafrost is either actively thawing or has experienced pronounced thaw in recent years.

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