Geophysical Data Collected in the Des Moines River, Beaver Creek, and the Des Moines River Floodplain, Des Moines, Iowa, 2018
Dates
Publication Date
2021-12-07
Start Date
2018-04-25
End Date
2018-09-06
Citation
Gruhn, L.R., Bristow, E.L., and White, E.A., 2021, Geophysical Data Collected in the Des Moines River, Beaver Creek, and the Des Moines River Floodplain, Des Moines, Iowa, 2018: U.S. Geological Survey data release, https://doi.org/10.5066/P9B9AVKJ.
Summary
A suite of geophysical methods was used along the Des Moines River, Beaver Creek, and in the Des Moines River floodplain in Des Moines, Iowa to support the hydrogeologic characterization of the alluvial aquifer associated with the river. The aquifer consists of sands and gravels underlain by weathered shale bedrock. Groundwater from the aquifer along with surface water sources are used for municipal drinking water for the City of Des Moines and surrounding communities. The raw data provided in this data release are minimally processed to filter out erroneous measurements. Data provided in this data release includes continuous resistivity profiling (CRP) and continuous seismic profiling (CSP) that were collected concurrently, electrical [...]
Summary
A suite of geophysical methods was used along the Des Moines River, Beaver Creek, and in the Des Moines River floodplain in Des Moines, Iowa to support the hydrogeologic characterization of the alluvial aquifer associated with the river. The aquifer consists of sands and gravels underlain by weathered shale bedrock. Groundwater from the aquifer along with surface water sources are used for municipal drinking water for the City of Des Moines and surrounding communities. The raw data provided in this data release are minimally processed to filter out erroneous measurements. Data provided in this data release includes continuous resistivity profiling (CRP) and continuous seismic profiling (CSP) that were collected concurrently, electrical resistivity tomography (ERT) profiles, and horizontal-to-vertical spectral ratio (HVSR) passive seismic measurements. The CRP and ERT measure the electrical properties of the subsurface, which can be related to stratigraphic layers. The CRP, ERT, CSP, and HVSR can be used to estimate depth to bedrock. Collectively, the suite of methods can help characterize the subsurface by mapping the extent of the sand and gravel aquifer and bedrock topography.
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Related External Resources
Type: Related Primary Publication
Thomas, J.C., Spring, M.A., Gruhn, L.R., and Bristow, E.L., 2023, Application of geophysical methods to enhance aquifer characterization and groundwater-flow model development, Des Moines River alluvial aquifer, Des Moines, Iowa, 2022: U.S. Geological Survey Fact Sheet 2023–3006, 4 p., https://doi.org/10.3133/fs20233006.
These data were collected to better assess the extent of sands and gravels and to characterize the hydrostratigraphic layers in the Des Moines River alluvial aquifer near Des Moines, Iowa.
