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Electrical resistivity tomography (ERT) data collected near Summerset, South Dakota, between July 28 and August 5, 2025 Electrical resistivity tomography (ERT) data collected near Summerset, South Dakota, between July 28 and August 5, 2025
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 collected using an Advanced Geosciences Incorporated SuperSting with 2 passive cables with 14 electrodes per cable. In total, ERT data were collected along 13 transects using 2 passive cables and...
Model predictions of biological condition metrics for small streams in the Chesapeake Bay Watershed, USA from 1985 to 2023 Model predictions of biological condition metrics for small streams in the Chesapeake Bay Watershed, USA from 1985 to 2023
This data release contains predictions of stream biological condition as defined by the Chesapeake basin-wide index of biotic integrity for stream macroinvertebrates (Chessie BIBI) as well as prediction of the percentage of the benthic macroinvertebrate assemblage as 1) Ephemeroptera, Plecoptera, Trichoptera less Hydropsychidae, 2) Ephemeroptera, and 3) Clingers using Random Forest...
CE-QUAL-W2 theoretical dam operational scenarios for select U.S. Army Corps of Engineer reservoirs and tributaries downstream of U.S. Army Corps of Engineer dams in the Willamette River Basin, Oregon: 2011, 2015, and 2016 CE-QUAL-W2 theoretical dam operational scenarios for select U.S. Army Corps of Engineer reservoirs and tributaries downstream of U.S. Army Corps of Engineer dams in the Willamette River Basin, Oregon: 2011, 2015, and 2016
Reservoir outflows and downstream water temperatures in the Willamette River Basin, Oregon, are influenced by the operation of 13 U.S. Army Corps of Engineer (USACE) dams that comprise the Willamette Valley System (WVS). CE-QUAL-W2 models have been developed to simulate water release temperatures from a subset of WVS dams, and thermal effects to downstream reaches that may result from...
Results of weighted least-squares (WLS) regression for 42 USGS streamgages in urban areas in Alabama and Mississippi Results of weighted least-squares (WLS) regression for 42 USGS streamgages in urban areas in Alabama and Mississippi
This dataset contains results of weighted least-squares (WLS) regression for 42 streamflow gaging stations (streamgages) operated by the U.S. Geological Survey (USGS) on urban streams in Alabama and Mississippi. WLS regression was used to relate drainage area and the percentages of the drainage basins of the streamgages in developed land use (the sum of classes 21-24 from the 2011...
Environmental DNA survey dataset for fish and amphibians in mountain lakes of Olympic National Park Environmental DNA survey dataset for fish and amphibians in mountain lakes of Olympic National Park
In the western United States, there has been a long history of planting fish into historically fishless mountain lakes for the purpose of recreational fishing. This practice can have detrimental effects to lake ecosystems, particularly amphibian populations. We compiled records of fish plantings into lakes on the Olympic Peninsula in western Washington State dating back to 1930. Our...
Geotechnical database for Anchorage, Alaska and surrounding areas Geotechnical database for Anchorage, Alaska and surrounding areas
In 2001, the Alaska Division of Geological & Geophysical Surveys (DGGS) published a database compiling geotechnical borehole and well-log records in Anchorage, Alaska (Combellick and others, 2001). This data release builds on that database, adding some additional cone penetration test (CPT) and well log records in broader areas across the state (Alaska Department of Natural Resources...