South Atlantic Water Science Center (SAWSC)

Data and Tools

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Real-time streamflow:     GA  ||  NC  ||  SC
Real-time water-quality data:    GA  ||  NC  ||  SC 
Real-time groundwater levels:    GA  ||  NC  ||  SC
Real-time precipitation:    GA  ||  NC  ||  SC

Filter Total Items: 173
Date published: January 1, 2018

Thermal Imagery along Ellerbe Creek in Durham, North Carolina

An initial reconnaissance survey in March 2016 and a subsequent survey in July 2016 was conducted to identify possible groundwater discharge points along the stream reach using a forward-looking infrared (FLIR) camera in seasonal extremes. The high-resolution thermal imaging camera captures the emitted infrared radiation of the objects in view. Recent studies using similar ground-based thermal...

Date published: January 1, 2018

Geomorphons of North Carolina

The 10 most common geomorphic features are identified for the state of North Carolina using Lidar derived DEMs at 30 ft. resolution. This product uses r.geomorphon, a feature in GRASS GIS, to calculate the geomorphic features for the state. The tool requires a user input length scale and slope for calculation. This dataset uses 60 cells, or 1800 ft. as the length scale and two different slope...

Date published: January 1, 2018

Slope Area Index of Streams in North Carolina

Slope-Area Index (SAI) is used to predict erosion along a stream channel. It is a function of channel slope, and drainage area upstream raised to the exponent used in equations for flood frequency of 2-percent exceedance floods. The guidelines for use of the coefficient from 2-percent exceedance came from meetings with cooperators describing bankfull discharge as a 2-percent exceedance. The...

Date published: January 1, 2018

Groundwater/Surface-Water Interactions Along Ellerbe Creek in Durham, North Carolina, 2016–18

A hydrologic study involving the investigation of groundwater-surface water interactions along Ellerbe Creek, a major tributary to upper Falls Lake, was conducted in order to determine if groundwater is a likely source of nitrate input to the stream. Groundwater-surface water interactions were characterized by synoptic streamflow measurements, groundwater-level monitoring, hydrograph-...

Date published: January 1, 2018

Occurrence data for organic compounds and bioactive chemicals in water, sediment and tissue from Rocky Mountain National Park, 2012-13

This data set contains the concentration results for water- and sediment-quality and tissue samples, as well as associated quality-assurance data, collected at sampling locations located in the Rocky Mountain National Park, Colorado. Samples were collected between 2012 and 2013. Samples were analyzed for nutrients, hormones, pharmaceutical, wastewater indicator compounds and pesticides, at...

Date published: January 1, 2018

Occurrence and Concentrations of Trace Elements in Discrete Tapwater Samples Collected in Chicago, Illinois and East Chicago, Indiana, 2017

This dataset contains the trace element concentration results for samples collected from tapwater sites in East Chicago, Indiana, August-September, 2017, and Chicago, Illinois, July-December, 2017. Samples were collected one time, from 45 private residences and associated drinking water plants and source water locations. Water-quality samples were analyzed at two U.S. Geological Survey...

Date published: January 1, 2018

Datasets for trends in water quality of selected streams and reservoirs used for water supply in the Triangle area of North Carolina, 1989-2013

This U.S. Geological Survey Data Release contains the associated data described in the Scientific Investigations Report, "Trends in water quality of selected streams and reservoirs used for water supply in the Triangle area of North Carolina, 1989-2013". Since 1989, the U.S. Geological Survey and a consortium of local governments have tracked water-quality conditions and trends in the water-...

Date published: January 1, 2018

Difficult Run Floodplain Sediment and Nutrient Retention Ecosystem Service Datasets, Fairfax County, Virginia

Datasets used to quantify and value the ecosystem service of sediment and nutrient retention for floodplains within the Difficult Run watershed located in Fairfax County, Virginia. Geospatial datasets include a digital elevation model (DEM), a hydrologically conditioned DEM, output from the USGS Stream Channel and Floodplain Metric Toolbox, and field data sets used to develop regression models...

Date published: January 1, 2018

Nutrient concentrations, streamflow, and geospatial data for 76 wadeable streams in the Piedmont Ecoregion of the Southeastern United States

Water samples were collected by the USGS National Water Quality Program (NWQP) Southeastern Stream Quality Assessment (SESQA) from 76 perennial, wadeable (less than 10 m width and 1 m depth at base-flow) headwater stream sites in watersheds with varying degrees of urban land use in four states. Dataset includes sample site locations and information, water sample nutrient concentrations and...

Date published: July 13, 2017

Data for estimating monthly water budgets at Panola Mountain Research Watershed, Stockbridge, Ga., water years 1986–2015

Data used to estimate monthly water budgets at Panola Mountain Research Watershed, Panola Mountain State Park, Stockbridge, Ga. for water years 1986–2015. Data include: (1) hourly air temperature and solar radiation data used to calculate potential evapotranspiration using the Priestly-Taylor equation; (2) unit-value streamwater stage and streamflow; (3) unit-value base flow...

Date published: July 1, 2017

Tar River at Princeville, North Carolina Flood Map Files from October 2016

These polygon boundaries, inundation extents, and depth rasters were created to provide an extent of flood inundation along the Tar River within the community of Princeville, North Carolina. The upstream and downstream reach extent is determined by the location of high-water marks, not extending the boundary far past the outermost high-water marks. In areas of uncertainty of flood extent, the...

Date published: June 6, 2017

Surface-water data for the South Atlantic Water Science Center (NWISWeb)

Real-time, daily, peak-flow, field measurements, and statistics of current and historical data that describe stream levels, streamflow (discharge), reservoir and lake levels, surface-water quality, and rainfall in Georgia, South Carolina, and North Carolina.

Current Conditions:  Georgia...