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This data release contains environmental and quality control results for chemical, biological, and physical sampling of water and bed sediment from Albemarle Sound and associated tributaries between 2012 and 2014 referenced in USGS OFR 2016-1171. Appendix 1 contains all quality control results to characterize the bias and variability of sampling, handling, and analysis of water, phytoplankton, and bed sediment samples. Appendix 2 contains all the chemical, biological, and physical results for water samples collected in July and August of 2012. Appendix 3 contains all the chemical, biological, and physical results for water samples collected from March 2013 to February 2014. Data are included for discrete samples...
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The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" "Standard" (https://pubs.usgs.gov/tm/11/a3/). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit (6th level)...
Tags: 10-digit, 12-digit, 14-digit, 16-digit, 2-digit, All tags...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Accomack County, Adams County, Administrative watershed units, Administrative watershed units, Alamance County, All tags...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Abbeville County, Administrative watershed units, Aiken County, Alamance County, Alexander County, All tags...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Accomack County, Adams County, Administrative watershed units, Alamance County, Albemarle County, All tags...


map background search result map search result map USGS National Hydrography Dataset (NHD) Best Resolution for North Carolina 20160413 State or Territory FileGDB 10.1 - HUC Watersheds USGS National Hydrography Dataset (NHD) Best Resolution for West Virginia 20160414 State or Territory FileGDB 10.1 - HUC Watersheds Associated data for Water Quality and Sediment Quality in the Albemarle Sound, North Carolina, 2012–14 Associated data for Water Quality and Sediment Quality in the Albemarle Sound, North Carolina, 2012–14, Appendix 3 USGS Combined Vector for Fort Landing, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for New Lake NW, North Carolina 20160711 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Columbia East, North Carolina 20160618 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Columbia East, North Carolina 20160618 7.5 x 7.5 minute Shapefile USGS Combined Vector for Creswell, North Carolina 20160706 7.5 x 7.5 minute Shapefile USGS Combined Vector for Fairfield, North Carolina 20160618 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Fairfield NE, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Harvey Neck, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Leonards Point, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for New Lake, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for New Lake, North Carolina 20160706 7.5 x 7.5 minute Shapefile USGS Combined Vector for Point Harbor, North Carolina 20160712 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for East Lake, North Carolina 20160712 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for New Lake SE, North Carolina 20160618 7.5 x 7.5 minute FileGDB 10.1 USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20190628) NHD 20190623 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS Combined Vector for Fort Landing, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for New Lake NW, North Carolina 20160711 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Columbia East, North Carolina 20160618 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Columbia East, North Carolina 20160618 7.5 x 7.5 minute Shapefile USGS Combined Vector for Creswell, North Carolina 20160706 7.5 x 7.5 minute Shapefile USGS Combined Vector for Fairfield, North Carolina 20160618 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Fairfield NE, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Harvey Neck, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Leonards Point, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for New Lake, North Carolina 20160706 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for New Lake, North Carolina 20160706 7.5 x 7.5 minute Shapefile USGS Combined Vector for Point Harbor, North Carolina 20160712 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for East Lake, North Carolina 20160712 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for New Lake SE, North Carolina 20160618 7.5 x 7.5 minute FileGDB 10.1 Associated data for Water Quality and Sediment Quality in the Albemarle Sound, North Carolina, 2012–14 Associated data for Water Quality and Sediment Quality in the Albemarle Sound, North Carolina, 2012–14, Appendix 3 NHD 20190623 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS National Hydrography Dataset (NHD) Best Resolution for North Carolina 20160413 State or Territory FileGDB 10.1 - HUC Watersheds USGS National Hydrography Dataset (NHD) Best Resolution for West Virginia 20160414 State or Territory FileGDB 10.1 - HUC Watersheds USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20190628)