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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 U.S. Geological Survey - ScienceBase Jonathan W Musser Ilana R Casarez More... Categories Data (1) Tag Types Place (3) Theme (3) USGS Scientific Topic Keyword (1) Harvest Set (1) Tag Schemes U.S. Board on Geographic Names (1) Common geographic areas (2) USGS Thesaurus (3) ISO 19115 Topic Category (3) Other keywords (2) View Results as: JSON ATOM CSV

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 A Dataset of Scanned Historical Well and Geophysical Logs From 96 Counties in Texas, 1925–2020 An extensive archive, estimated to contain more than 3,500 historical (1925–2020) geophysical logs collected in conjunction with past studies conducted by various entities, and more than 2,000 additional donated well and geophysical logs are stored in hard-copy at the Central Texas Branch of the Oklahoma-Texas Water Science Center (OTWSC) located in Austin, Texas. This dataset addresses the need to preserve these records electronically by providing a scanned and indexed collection of 6,058 of these records in Portable Document Format (PDF) along with a public Microsoft Access database and comma-separated values (CSV) text file containing detailed well header information for each record. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Anderson, Andrews, Angelina, Aransas, Archer, All tags... Armstrong, Atascosa, Austin, Bandera, Bastrop, Bee, Bell, Bexar, Borden, Brazos, Brewster, Briscoe, Burleson, Burnet, Cochran, Coke, Cottle, Crane, Crockett, Crosby, Culberson, Dallam, Dawson, Dickens, Ector, Edwards, Floyd, Gaines, Garza, Geophysics, Glasscock, Gray, Hale, Harrison, Hartley, Hockley, Howard, Hudspeth, Information Sciences, Irion, Kent, Kerr, Kimble, King, Kinney, Kleberg, LaSalle, Lamar, Lampasas, Lavaca, Leon, Liberty, Limestone, Lipscomb, Live Oak, Loving, Lubbock, Madison, Martin, Matagorda, Maverick, McLennan, McMullen, Medina, Menard, Midland, Milam, Mills, Mitchell, Montague, Montgomery, Moore, Morris, Motley, Nolan, Panola, Pecos, Presidio, Reagan, Real, Reeves, Scurry, Shelby, Sterling, Stonewall, Stratigraphy, Terry, Texas, USGS Science Data Catalog (SDC), United States, Upton, Val Verde, Ward, Webb, Winkler, Zapata, Zavala, borehole logging, datasets, electrical resistivity imaging, electrical resistivity logging, geophysics, geoscientificInformation, utilitiesCommunication, well drilling, Fewer tags