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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: Administrative watershed units,
Administrative watershed units,
Androscoggin County,
Area of Complex Channels,
Area to be submerged, All tags...
Basin,
Basin,
Bay/Inlet,
Belknap County,
Boundaries,
Boundary,
Bridge,
Canal/Ditch,
Carroll County,
Coastline,
Connector,
Coos County,
Cumberland County,
Dam/Weir,
Downloadable Data,
Drainage areas for surface water,
Drainageway,
Esri File GeoDatabase 10,
Essex County,
Estuary,
FileGDB,
Flow direction network,
Flume,
ForeShore,
Gaging Station,
Gate,
Grafton County,
HU-4,
HU-4 Subregion,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU4_0106,
HU6,
HU8,
HUC,
Hazard Zone,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Levee,
Line,
Lock Chamber,
MA,
ME,
Maine,
Marsh,
Massachusetts,
Merrimack County,
NH,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New Hampshire,
Nonearthen Shore,
Orthoimage,
Oxford County,
Playa,
Point,
PointEvent,
Pond,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Rockingham County,
Sagadahoc County,
Sea/Ocean,
Sink/Rise,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
Strafford County,
Stream,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Surface water systems,
Swamp,
Topographic,
Tunnel,
US,
Underground Conduit,
United States,
WBD,
WBD,
Wall,
Wash,
Water Intake Outflow,
Waterfall,
Watershed,
Watershed Boundaries,
Watershed Boundary Dataset,
Watershed Boundary Dataset,
Well,
York County,
artificial path,
boundaries,
dams,
drainage systems and characteristics,
inlandWaters,
lakes,
ngda,
rivers, Fewer tags
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: Administrative watershed units,
Administrative watershed units,
Androscoggin County,
Area of Complex Channels,
Area to be submerged, All tags...
Basin,
Basin,
Bay/Inlet,
Belknap County,
Boundaries,
Boundary,
Bridge,
Canal/Ditch,
Carroll County,
Coastline,
Connector,
Coos County,
Cumberland County,
Dam/Weir,
Downloadable Data,
Drainage areas for surface water,
Drainageway,
Esri Shapefile,
Essex County,
Estuary,
Flow direction network,
Flume,
ForeShore,
Gaging Station,
Gate,
Grafton County,
HU-4,
HU-4 Subregion,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU4_0106,
HU6,
HU8,
HUC,
Hazard Zone,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Levee,
Line,
Lock Chamber,
MA,
ME,
Maine,
Marsh,
Massachusetts,
Merrimack County,
NH,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New Hampshire,
Nonearthen Shore,
Orthoimage,
Oxford County,
Playa,
Point,
PointEvent,
Pond,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Rockingham County,
Sagadahoc County,
Sea/Ocean,
Shapefile,
Sink/Rise,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
Strafford County,
Stream,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Surface water systems,
Swamp,
Topographic,
Tunnel,
US,
Underground Conduit,
United States,
WBD,
WBD,
Wall,
Wash,
Water Intake Outflow,
Waterfall,
Watershed,
Watershed Boundaries,
Watershed Boundary Dataset,
Watershed Boundary Dataset,
Well,
York County,
artificial path,
boundaries,
dams,
drainage systems and characteristics,
inlandWaters,
lakes,
ngda,
rivers, Fewer tags
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced...
Tags: Androscoggin County,
Belknap County,
Carroll County,
Coos County,
Cumberland County, All tags...
Downloadable Data,
Essex County,
FileGDB,
FileGDB 10.1,
Grafton County,
HU-4 Subregion,
HU-4 Subregion,
HU4_0106,
Hydrography,
MA,
ME,
Maine,
Massachusetts,
Merrimack County,
NH,
NHDPlus HR Rasters,
NHDPlus High Resolution (NHDPlus HR),
National Hydrography Dataset (NHD),
National Hydrography Dataset Plus High Resolution (NHDPlus HR),
National Hydrography Dataset Plus High Resolution (NHDPlus HR) Current,
New Hampshire,
Oxford County,
Rockingham County,
Sagadahoc County,
Strafford County,
US,
United States,
York County,
base maps,
cartography,
catchments,
channels,
digital elevation models,
drainage basins,
earth sciences,
elevation,
environment,
geographic information systems,
geoscientific,
geospatial analysis,
hydrographic datasets,
hydrographic features,
hydrology,
imagery,
inland waters,
lakes,
land surface characteristics,
reservoirs,
river reaches,
rivers,
streamflow,
streamflow data,
streams,
topography,
water bodies,
water quality,
water resources,
watersheds, Fewer tags
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: Administrative watershed units,
Administrative watershed units,
Androscoggin County,
Area of Complex Channels,
Area to be submerged, All tags...
Basin,
Basin,
Bay/Inlet,
Belknap County,
Boundaries,
Boundary,
Bridge,
Canal/Ditch,
Carroll County,
Coastline,
Connector,
Coos County,
Cumberland County,
Dam/Weir,
Downloadable Data,
Drainage areas for surface water,
Drainageway,
Essex County,
Estuary,
Flow direction network,
Flume,
ForeShore,
Gaging Station,
Gate,
GeoPackage,
Grafton County,
HU-4,
HU-4 Subregion,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU4_0106,
HU6,
HU8,
HUC,
Hazard Zone,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Levee,
Line,
Lock Chamber,
MA,
ME,
Maine,
Marsh,
Massachusetts,
Merrimack County,
NH,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New Hampshire,
Nonearthen Shore,
Open Geospatial Consortium GeoPackage 1.2,
Orthoimage,
Oxford County,
Playa,
Point,
PointEvent,
Pond,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Rockingham County,
Sagadahoc County,
Sea/Ocean,
Sink/Rise,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
Strafford County,
Stream,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Surface water systems,
Swamp,
Topographic,
Tunnel,
US,
Underground Conduit,
United States,
WBD,
WBD,
Wall,
Wash,
Water Intake Outflow,
Waterfall,
Watershed,
Watershed Boundaries,
Watershed Boundary Dataset,
Watershed Boundary Dataset,
Well,
York County,
artificial path,
boundaries,
dams,
drainage systems and characteristics,
inlandWaters,
lakes,
ngda,
rivers, Fewer tags
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