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Nebraska Water Science Center

Data and Tools

Continuous and discrete surface-water, groundwater, and water-quality data are collected to provide long-term hydrologic records critical to investigating hydrology, modeling climate-change, evaluating natural and anthropogenic changes in the hydrologic regime, and providing information on water availability to water managers.

Filter Total Items: 36
Date published: December 3, 2018

Water-level and digital data for the Elkhorn and Loup River Basins groundwater flow model, Phase Three

This updated study focused on a 30,000-square-mile area of the High Plains aquifer and constructed regional groundwater-flow models to evaluate the effects of groundwater withdrawal on stream base flow in the Elkhorn and Loup River Basins, Nebraska.

Date published: March 15, 2018

Aerial thermal infrared imagery, focused groundwater discharge points, water temperature, streambed temperature, and vertical hydraulic gradient data collected along the South Loup, Dismal, and North Loup Rivers, Nebraska, 2014-16

This data release contains six zipped raster files of thermal infrared (TIR) images of the South Loup River, North Loup River, and Dismal River named as LowerSouthLoup_AerialTIRImage_1m_2015.zip, MiddleSouthLoup_AerialTIRImage_50cm_2015.zip, UpperSouthLoup_AerialTIRImage_30cm_2015.zip, LowerDismal_AerialTIRImage_1m_2016.zip, UpperDismal_AerialTIRImage_50cm_2015.zip, and...

Date published: January 1, 2018

Monitoring Data for Willow Creek Lake, Nebraska, 2012–14—Lake Level

Daily measurements of Willow Creek Lake water storage were provided by the Nebraska Department of Natural Resources for 2012–14. These water levels were used in conjunction with a table (provided by the Lower Elkhorn Natural Resources District) relating lake storage volume to surface area. From these, daily estimates of surface area were derived for the lake.

Date published: January 1, 2018

Depth grids of the flood-inundation maps for the Salamonie River at Portland, Indiana

Digital flood-inundation maps for a 6.5-mile reach of the Salamonie River at Portland, Indiana, were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Department of Transportation. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science website at https://water.usgs.gov/...

Date published: January 1, 2018

Shapefile of the flood-inundation maps for the Salamonie River at Portland, Indiana

Digital flood-inundation maps for a 6.5-mile reach of the Salamonie River at Portland, Indiana, were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Department of Transportation. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science website at https://water.usgs.gov/...

Date published: January 1, 2018

Monitoring Data for Willow Creek Lake, Nebraska, 2012-14

Monitoring data were collected from the Willow Creek drainage basin and Willow Creek Lake with a focus on 2012-14. Included are datasets of meteorology; lake measurements of water levels, sediment nutrients, and physical, chemical, and biological data; streamflow and stream chemistry; and calculated nutrient loads to the lake.

Date published: January 1, 2018

Monitoring Data for Willow Creek Lake, Nebraska, 2012–14—Meteorology

A meteorological station was deployed on the dam to measure hourly relative humidity, wind speed and direction, and photosynthetically active radiation between August 3, 2012 and October 30, 2014, with air temperature and solar radiation added on April 30, 2013. Additional meteorological data were obtained from the National Climatic Data Center (2015): Precipitation data were obtained from...

Date published: January 1, 2018

Monitoring Data for Willow Creek Lake, Nebraska, 2012–14—Sampling Data

Chemistry data were collected or compiled from stream water, lake water, and groundwater. Stream water samples were collected more frequently to capture the range of streamflow conditions. Discretely collected samples were analyzed for nitrogen content (total Kjeldahl nitrogen and nitrate plus nitrite nitrogen) and phosphorus (total phosphorus and phosphate as phosphorus). A subset of samples...

Date published: January 1, 2018

Monitoring Data for Willow Creek Lake, Nebraska, 2012–14—Streamflow

Streamflow was measured at the three largest inflows (the Foster, NT, and ST sites) of Willow Creek Lake and at the outflow of the lake. Flow data were typically available at a 15-minute frequency, but generally were summarized as daily means. Flow data for the Foster, NT, and outflow sites were provided by the Nebraska Department of Natural Resources (NDNR) and were estimated using stage-flow...

Date published: January 1, 2018

Monitoring Data for Willow Creek Lake, Nebraska, 2012–14—Water Balance

Flow interaction between Willow Creek Lake and groundwater was calculated from a lake water balance (Healy and others, 2007) in which all of the other flow components were either measured or estimated between 2012 and 2014 (as described in Rus and others, 2018) and the interaction was the residual term. Inflow terms consisted of streamflow at three sites (Foster, NT, and ST) as well as the...

Date published: January 1, 2018

Monitoring Data for Willow Creek Lake, Nebraska, 2012–14—Nutrient Loading

A variety of nutrient sources transported by multiple flow paths contribute to the nutrient load entering Willow Creek Lake. In addition to Willow Creek, there are several smaller tributaries that contribute streamflow to the lake. As Spalding and others (1992) noted, groundwater interactions with the lake are likely another important contributor to nutrient loading. Nutrient load was computed...

Date published: January 1, 2018

Monitoring Data for Willow Creek Lake, Nebraska, 2012–14—Microcystin

As a part of the statewide Public Beach Monitoring Program–Bacteria and Microcystin, the Lower Elkhorn Natural Resources District collected weekly samples at Willow Creek Lake to monitor microcystin concentrations. The monitoring generally followed the procedures described by Graham and others (2008) for recreational areas. Sampling occurred weekly during May through September, 2006...