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In cooperation with the South Carolina Department of Transportation (SCDOT), the U.S. Geological Survey prepared geospatial layers illustrating the boundaries of the regions used in the South Carolina (SC) Stream Hydrograph Methods presented in Bohman (1990,1992). The region limits were described in written text and depicted in figures in Bohman (1990, 1992), but have not been provided as geospatial layers (due to the age of the original publications). This project used best-available geospatial data from the U.S. Environmental Protection Agency (USEPA) ecoregions (2013) to create equivalent geospatial representations of the Bohman (1990, 1992) region boundaries for the SC Stream Hydrograph Methods. These layers...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service,
Shapefile;
Tags: Georgia,
Hydrology,
North Carolina,
South Carolina,
USGS Science Data Catalog (SDC), All tags...
United States,
Virginia,
Water Resources,
basin,
flood,
floods,
gage,
geography,
geoscientificInformation,
geospatial datasets,
hazard preparedness,
hydrology,
inlandWaters,
natural resources,
streamflow,
streamgage,
surface water, Fewer tags
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Alterations to stream hydrology, which include changes in stream geomorphology, are primary impacts of anthropogenic disruption. In North Carolina, hydrological alterations lead to environmental impacts through degraded ecosystems and water quality. In collaboration with the North Carolina Department of Environmental Quality, Division of Mitigation Services (DMS), the USGS South Atlantic Water Science Center datasets are proxy measurements of the extent of altered hydrology in riverine systems across the State of North Carolina. The datasets consist of an inventory and characterization of small scale (mostly agricultural) ponds and artificial drainages, which are both significant hydrologic modifications in the...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Aquatic ecosystem,
Barriers,
Freshwater ecosystems,
Geomorphology,
Geospatial analysis, All tags...
Hydrology,
Hydrology,
Land use & land cover,
North Carolina,
Small ponds,
Transportation,
USGS Science Data Catalog (SDC),
Water cycle,
Watershed management,
geoscientificInformation,
inlandWaters, Fewer tags
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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 model boundary is lined up with the flood inundation polygon extent. This boundary polygon was used to extract the final flood inundation polygon and depth layer from the flood water surface raster file. The passage of Hurricane Matthew through central and eastern North Carolina during October 7-9, 2016, brought heavy rainfall...
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The U.S. Geological Survey South Atlantic Water Science Center, in cooperation with the South Carolina Department of Transportation, implemented a South Carolina StreamStats application in 2018. This shapefile dataset contains vector lines representing streams, rivers, and ditches that were used in preparing the underlying data for the South Carolina StreamStats application. Data were compiled from multiple sources, but principally represent lidar-derived linework from the South Carolina Department of Natural Resources and the South Carolina Lidar Consortium.The South Carolina hydrography lines were created from elevation rasters that ranged from 4 to 10 ft resolution, to produce a product of approximately 1:6,000-scale....
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Abbeville County,
Aiken County,
Allendale County,
Anderson County,
Bamberg County, All tags...
Barnwell County,
Beaufort County,
Berkeley County,
Calhoun County,
Charleston County,
Cherokee County,
Chester County,
Chesterfield County,
Clarendon County,
Colleton County,
Darlington County,
Dillon County,
Dorchester County,
Edgefield County,
Fairfield County,
Florence County,
Geography,
Georgetown County,
Georgia,
Greenville County,
Greenwood County,
Hampton County,
Horry County,
Hydrology,
Jasper County,
Kershaw County,
Lancaster County,
Laurens County,
Lee County,
Lexington County,
Marion County,
Marlboro County,
McCormick County,
Newberry County,
North Carolina,
Oconee County,
Orangeburg County,
Pickens County,
Richland County,
Saluda County,
South Carolina,
South Carolina,
Spartanburg County,
Sumter County,
USGS Science Data Catalog (SDC),
Union County,
Virginia,
Water Resources,
Williamsburg County,
York County,
computational methods,
decision support methods,
environment,
flood preparedness,
floods,
floods and flood hazards,
geographic information systems,
geoscientificInformation,
geospatial datasets,
hazard preparedness,
hydrography,
hydrologic maps,
hydrology,
inlandWaters,
lidar,
maps and atlases,
partnerships,
river reaches,
river systems,
surface water (non-marine),
water resource management, Fewer tags
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Ponds are impoundments that have been used for flood control, water supply, irrigation, and recreation. They constitute modifications to the stream network that fragment the aquatic habitat by limiting river network connectivity necessary for fish passage. A dataset was developed to quantify small ponds as proxy measures of barriers to flow in stream networks across the State of North Carolina. The USGS used a combination of the 2016 National Land Cover Dataset (NLCD) and the National Hydrography Dataset (NHD) Plus High Resolution to identify 105,560 small ponds that are less than 10 acres in size. The features are more refined than larger scale assessments such as those in the NHDPlus High Resolution and provide...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Aquatic ecosystems,
Barriers,
Freshwater ecosystems,
Geospatial analysis,
Hydrology, All tags...
Land use and land cover,
North Carolina,
Small ponds,
Watershed management,
geoscientificInformation,
inlandWaters, Fewer tags
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