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Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types OGC WFS Layer (3) OGC WMS Layer (3) OGC WMS Service (3) Contacts Silvia Terziotti U.S. Geological Survey Laura N Gurley Ana Maria Garcia U.S. Geological Survey - ScienceBase More... Tag Types Place (3) Theme (3) USGS Scientific Topic Keyword (1) Harvest Set (1) Tag Schemes Common geographic areas (2) Geographic Names Information System (1) USGS Thesaurus (3) ISO 19115 Topic Category (3) Other keywords (2) View Results as: JSON ATOM CSV

Soil and Water Assessment Tool (SWAT) models for the Cape Fear River Basin used to simulate future streamflow and irrigation demand based on climate and urban growth projections As part of the Coastal Carolinas Focus Area Study of the U.S. Geological Survey National Water Census Program, the Soil and Water Assessment Tool (SWAT) was used to develop models for the Cape Fear River Basin, North Carolina, to simulate future streamflow and irrigation demand based on land use, climate, and water demand projections. SWAT is a basin-scale, process-based watershed model with the capability of simulating water-management scenarios. Model basins were divided into approximately two-square mile subbasins and subsequently divided into smaller, discrete hydrologic response units based on land use, slope, and soil type. The calibration period for the historic model was 2000 to 2014. The best available... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alamance, Bladen, Brunswick, Cape Fear, Caswell, All tags... Chatham, Columbus, Cumberland, Duplin, Durham, Fayetteville, Forsyth, Greensboro, Guilford, Harnett, Hoke, Hydrology, Johnston, Jones, Lee, Lenoir, Montgomery, Moore, New Hanover, North Carolina, Onslow, Orange, Pender, Raleigh, Randolph, Robeson, Rockingham, SWAT model, Sampson, Sedimentology, USGS Science Data Catalog (SDC), Wake, Wayne, Wilmington, effects of climate change, environment, geoscientificInformation, hydrology, inlandWaters, irrigation, land use change, mathematical modeling, streamflow, streamflow modeling, water use, Fewer tags Lidar-Derived Ditches in Eastern North Carolina with Transportation attributes, 2014-2015 Artificial drainage has major ecosystem impacts through the development of extensive ditch networks that reduce storage and induce large-scale vegetation changes. This has been a widespread practice of water table management for agriculture in Eastern North Carolina. However, these features are challenging to identify, and (because of their structure) have been determined by non-natural factors. A dataset of open ditches was processed by calculating terrain openness (also called positive openness): a value based on a line-of-sight approach to measure the surrounding eight zenith angles as viewed above the landscape surface. The result from calculating openness with high resolution digital elevation models (DEMs... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Agriculture, Artificial drainage, Beaufort, Bertie, Bladen, All tags... Brunswick, Camden, Canals, Carteret, Chowan, Columbus, Craven, Cumberland, Currituck, Dare, Ditches, Duplin, Edgecombe, Franklin, Gates, Geomorphology, Geospatial analysis, Greene, Halifax, Harnett, Hertford, Hoke, Hyde, Hydrology, Johnston, Jones, Lenoir, Lidar, Martin, Montgomery, Moore, Nash, New Hanover, North Carolina, Northampton, Onslow, Pamlico, Pasquotank, Pender, Perquimans, Pitt, Richmond, Robeson, Sampson, Scotland, Spatial analysis, Tyrrell, Wake, Washington, Water cycle, Wayne, Wilson, geoscientificInformation, Fewer tags Summary Descriptive Characteristics by Catchment Concerning Lidar-derived Ditches in Eastern North Carolina, 2014-2015 Artificial drainage has major ecosystem impacts through the development of extensive ditch networks that reduce storage and induce large-scale vegetation changes. This has been a widespread practice of water table management for agriculture in Eastern North Carolina. However, these features are challenging to identify, and because of their structure, have been determined by non-natural factors. A dataset of open ditches was processed by calculating terrain openness (also called positive openness): a value based a line-of-sight approach to measure the surrounding eight zenith angles as viewed above the landscape surface. The result from calculating openness with high resolution digital elevation models (DEMs, or... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Agriculture, Artificial drainage, Beaufort, Bertie, Bladen, All tags... Brunswick, Camden, Canals, Carteret, Chowan, Columbus, Craven, Cumberland, Currituck, Dare, Ditches, Duplin, Edgecombe, Franklin, Gates, Geomorphology, Geospatial analysis, Greene, Halifax, Harnett, Hertford, Hoke, Hyde, Hydrology, Johnston, Jones, Lenoir, Lidar, Martin, Montgomery, Moore, Nash, New Hanover, North Carolina, Northampton, Onslow, Pamlico, Pasquotank, Pender, Perquimans, Pitt, Richmond, Robeson, Sampson, Scotland, Transportation, Tyrrell, Wake, Washington, Water Cycle, Wayne, Wilson, boundaries, farming, geoscientificInformation, inlandWaters, transportation, Fewer tags