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Continuous resistivity profiling (CRP) in the Cedar River Floodplain, Cedar Rapids, Iowa, 2015

Metadata Updated: July 6, 2024

In April 2015, approximately 19 miles of continuous resistivity profiling (CRP) surveys were collected on the Cedar River in Cedar Rapids, Iowa. The CRP method was used to characterize the resistivity of the water column and subbottom materials. Five CRP profiles were collected concurrently with the continuous seismic methods. For this investigation, 11 electrodes spaced 10 m apart and mounted in a streamer were towed behind the boat and data were collected using the dipole-dipole array type. The first two electrodes, closest to the boat, were used to inject current into the water and subbottom materials, and eight electrical potential measurements were made using the remaining nine electrodes. With this system, a complete suite of measurements is collected every 2.8 seconds. Because the boat is moving at a slow rate of speed, a complete measurement is taken while the boat has moved about 3-5 m. In general, voltage measurements taken with larger electrode spacings extend deeper into the subsurface. The exact depth and resistivity are determined through a process of inversion. The raw CRP data are shared in this data release.

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/3ddb6f3a06ade94e07e47526c188b5e6
Identifier USGS:5d0295d0e4b05cc71caf1146
Data Last Modified 20200813
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 985b1876-9c42-44bb-bdd7-8457b9d0cd0e
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -91.80633,41.9771,-91.64703,42.06918
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash ae67adc63414e45c03c93d2b2be589f6b7812a1991b3e1c49ba2bfc49459ed82
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -91.80633, 41.9771, -91.80633, 42.06918, -91.64703, 42.06918, -91.64703, 41.9771, -91.80633, 41.9771}

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