Filters: Tags: Big Sioux aquifer (X)
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A MODFLOW-6 groundwater flow model of the Big Sioux aquifer near Sioux Falls, South Dakota, was constructed to improve the understanding and management of the water supply resources for the City of Sioux Falls. The model area included the Big Sioux River drainage basin between Del Rapids and Sioux Falls, South Dakota, and simulated groundwater flow in the Big Sioux aquifer and underlying hydrogeologic units. The data release directories contain ancillary, bin, georef, model, output, and source folders with the necessary executable and input files for the following models: (1) a transient MODFLOW-6 groundwater flow model; (2) a steady-state MODFLOW-6 model used for eventual streamflow capture analysis; (3) a modified...
Airborne electromagnetic (AEM) and magnetic survey data were collected during October 2015 along 769 line-kilometers over a 160-square-kilometer area that includes the Big Sioux aquifer between Sioux Falls and Dell Rapids, South Dakota, USA. Data were acquired with the CGG Resolve frequency-domain helicopter-borne electromagnetic system along with a cesium vapor magnetometer. Files included in this data release are: (1) raw and processed AEM and magnetic data; (2) processed AEM resistivity-depth inversions, and (3) a contractor’s report describing survey parameters, field operations, quality control, and data reduction procedures.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Big Sioux aquifer,
City of Sioux Falls,
Geophysics,
Hydrogeology,
USGS Science Data Catalog (SDC),
Well and aquifer data were collected from field measurements and drillers’ logs. Multiple slug tests were completed at each well with a transducer to record the change in water level and a U.S. Geological Survey standard mechanical slug to displace the well’s water column. A Solinst Levelogger LT F30/M10 electronic transducer (unvented) was used to record water-level changes during each slug test. Water-level changes for each trial were analyzed in AQTESOLV Pro version 4.50.002 using the Springer and Gelhar method of curve fitting.
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