Search datasets
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Surface electrical resistivity tomography (ERT), electromagnetic induction (EMI), and self-potential (SP) data were acquired March 9 - 20, 2018 by the U.S. Geological Survey (USGS), in...
Search relevance: 321.29 | Views last month: 27 | Catalog Last Checked: September 10, 2026 at 09:37 PM -
Geophysical measurements and related field data were collected by the U.S. Geological Survey (USGS) at the Alaska Peatland Experiment (APEX) site in Interior Alaska from 2018 to 2020 to...
Search relevance: 312.23 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:56 PM -
Geophysical measurements were collected by the U.S. Geological Survey (USGS) at five sites in Interior Alaska in September 2021 for the purposes of imaging permafrost structure and quantifying...
Search relevance: 309.15 | Views last month: 8 | Catalog Last Checked: September 10, 2026 at 09:20 PM -
Surface electrical resistivity tomography (ERT), magnetic, and gravity surveys were conducted in July 2017 in the greater East River Watershed near Crested Butte Colorado with a focused effort in...
Search relevance: 294.62 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:30 PM -
Fire can be a significant driver of permafrost change in boreal landscapes, altering the availability of soil carbon and nutrients that have important implications for future climate and...
Search relevance: 289.24 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:57 PM -
The U.S. Geological Survey, in cooperation with the City of Summerset, South Dakota, performed electrical resistivity tomography (ERT) surveys between July 28 and August 5, 2025. ERT data were...
Search relevance: 271.38 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:09 PM -
The electrical conductivity of the earth is used to help infer lithological and pore fluid properties. Various geophysical methods can provide estimates of the distribution of below ground...
Search relevance: 264.30 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:51 PM -
The U.S. Geological Survey, in cooperation with the City of Sioux Falls, South Dakota, performed electrical resistivity tomography (ERT) surveys March 14–18, 2022 and November 17–21, 2025. In...
Search relevance: 258.80 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 08:21 PM -
The U.S. Geological Survey, in cooperation with the U.S. Air Force Civil Engineer Center, used surface geophysical methods to delineate the top of the Cretaceous Pierre Shale along survey...
Search relevance: 249.82 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 10:16 PM -
The U.S. Geological Survey, in cooperation with the Air Force Civil Engineering Center, investigated the use of surface geophysical surveys to delineate the top of the Cretaceous Pierre Shale...
Search relevance: 238.52 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:58 PM -
This data release contains electrical resistivity tomography (ERT) and frequency domain electromagnetic (FDEM) data collected in areas of unwalled shoreline at the Bremerton Naval Complex, WA,...
Search relevance: 227.42 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:43 PM -
This data submission includes the raw time-lapse ERT (electrical resistivity tomography) monitoring data, flow system data, operator logs, E4D (https://e4d.pnnl.gov) inversion files, and metadata...
Search relevance: 203.51 | Views last month: 0 | Catalog Last Checked: November 10, 2026 at 02:40 AM -
This repository contains the electrical resistivity tomography (ERT) monitoring data that was collected before, during, and after shear stimulation attempts were conducted at EGS Collab. These...
Search relevance: 196.66 | Views last month: 4 | Catalog Last Checked: November 10, 2026 at 02:40 AM -
Along-shore surface-based 2D electrical resistivity tomography (ERT) surveys were collected in the nearshore region of Makua, Kauai.
Search relevance: 176.82 | Views last month: 8 | Catalog Last Checked: September 10, 2026 at 07:52 PM -
Along-shore surface-based 2D electrical resistivity tomography (ERT) surveys were collected in the nearshore region of Ofu, American Samoa.
Search relevance: 175.25 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:01 PM -
In June 2017, U.S. Geological Survey (USGS) collected geophysical measurements to help map variations in electrical properties to infer shallow flowpaths and storage zones influenced by residual...
Search relevance: 152.11 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 09:36 PM -
Direct-Current resistivity data were collected to characterize the hydrogeology and groundwater depth surrounding Quitobaquito Spring. Resistivity data are sensitive to water-content in the...
Search relevance: 147.59 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 07:56 PM -
Electrical resistivity Tomography (ERT) is a direct current geophysical method that is used to estimate the subsurface distribution of the electrical resistivity (measured in ohm-meters, or ohm-m)...
Search relevance: 132.10 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:24 PM -
Surface electrical resistivity tomography (ERT) data were collected in September of 2018 near Ollalie North springs in the upper McKenzie River watershed of west-central Oregon. ERT data were...
Search relevance: 126.23 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 08:29 PM -
Electrical resistivity tomography (ERT) surveys were collected in April 2015 to support hydrogeologic characterization of the alluvial aquifer and to assess the suitability of larger-scale...
Search relevance: 125.53 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 07:52 PM
