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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,
Anne Arundel,
Area of Complex Channels,
Area to be submerged, All tags...
Baltimore,
Basin,
Basin,
Bay/Inlet,
Boundaries,
Boundary,
Bridge,
Calvert,
Canal/Ditch,
Caroline,
Carroll,
Cecil,
Charles,
Chester,
Coastline,
Connector,
DE,
Dam/Weir,
Delaware,
Dorchester,
Downloadable Data,
Drainage areas for surface water,
Drainageway,
Esri File GeoDatabase 10,
Estuary,
FileGDB,
Flow direction network,
Flume,
ForeShore,
Frederick,
Gaging Station,
Gate,
HU-4,
HU-4 Subregion,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU4_0206,
HU6,
HU8,
HUC,
Harford,
Hazard Zone,
Howard,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Kent,
Levee,
Line,
Lock Chamber,
MD,
Marsh,
Maryland,
Montgomery,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New Castle,
Nonearthen Shore,
Orthoimage,
PA,
Pennsylvania,
Playa,
Point,
PointEvent,
Pond,
Prince George's,
Queen Anne's,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Sea/Ocean,
Sink/Rise,
Somerset,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
St. Mary's,
Stream,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Surface water systems,
Swamp,
Talbot,
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,
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,
Anne Arundel,
Area of Complex Channels,
Area to be submerged, All tags...
Baltimore,
Basin,
Basin,
Bay/Inlet,
Boundaries,
Boundary,
Bridge,
Calvert,
Canal/Ditch,
Caroline,
Carroll,
Cecil,
Charles,
Chester,
Coastline,
Connector,
DE,
Dam/Weir,
Delaware,
Dorchester,
Downloadable Data,
Drainage areas for surface water,
Drainageway,
Esri Shapefile nan,
Estuary,
Flow direction network,
Flume,
ForeShore,
Frederick,
Gaging Station,
Gate,
HU-4,
HU-4 Subregion,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU4_0206,
HU6,
HU8,
HUC,
Harford,
Hazard Zone,
Howard,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Kent,
Levee,
Line,
Lock Chamber,
MD,
Marsh,
Maryland,
Montgomery,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New Castle,
Nonearthen Shore,
Orthoimage,
PA,
Pennsylvania,
Playa,
Point,
PointEvent,
Pond,
Prince George's,
Queen Anne's,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Sea/Ocean,
Shapefile,
Sink/Rise,
Somerset,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
St. Mary's,
Stream,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Surface water systems,
Swamp,
Talbot,
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,
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,
Anne Arundel,
Area of Complex Channels,
Area to be submerged, All tags...
Baltimore,
Basin,
Basin,
Bay/Inlet,
Boundaries,
Boundary,
Bridge,
Calvert,
Canal/Ditch,
Caroline,
Carroll,
Cecil,
Charles,
Chester,
Coastline,
Connector,
DE,
Dam/Weir,
Delaware,
Dorchester,
Downloadable Data,
Drainage areas for surface water,
Drainageway,
Estuary,
Flow direction network,
Flume,
ForeShore,
Frederick,
Gaging Station,
Gate,
GeoPackage,
HU-4,
HU-4 Subregion,
HU10,
HU12,
HU14,
HU16,
HU2,
HU4,
HU4_0206,
HU6,
HU8,
HUC,
Harford,
Hazard Zone,
Howard,
Hydrographic,
Hydrography,
Hydrography,
Hydrography,
Hydrologic Unit Code,
Hydrologic Units,
Ice mass,
Inundation Area,
Kent,
Levee,
Line,
Lock Chamber,
MD,
Marsh,
Maryland,
Montgomery,
National Hydrography Dataset (NHD),
National Hydrography Dataset (NHD) Best Resolution,
National Hydrography Dataset (NHD) Best Resolution,
New Castle,
Nonearthen Shore,
Open Geospatial Consortium GeoPackage 1.2,
Orthoimage,
PA,
Pennsylvania,
Playa,
Point,
PointEvent,
Pond,
Prince George's,
Queen Anne's,
Rapids,
Rapids,
Reach,
Reach code,
Reef,
Region,
Reservoir,
Rock,
Sea/Ocean,
Sink/Rise,
Somerset,
Sounding Datum Line,
Special Use Zone,
Special Use Zone Limit,
Spillway,
St. Mary's,
Stream,
Stream/River,
Sub-basin,
Sub-region,
Subbasin,
Submerged Stream,
Subregion,
Subwatershed,
Surface water systems,
Swamp,
Talbot,
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,
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 National Hydrography Dataset (NHD), National Watershed Boundary Dataset (WBD), and 3D Elevation Program Digital Elevation Model (3DEP DEM). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to a data suite that includes the NHD stream network with linear referencing functionality, the WBD hydrologic units, elevation-derived catchment areas for each stream segment, "value added attributes" (VAAs), and other features that enhance hydrologic data analysis and routing.
Tags: 4-digit hydrologic unit,
Anne Arundel County,
Baltimore County,
Calvert County,
Caroline County, All tags...
Carroll County,
Cecil County,
Charles County,
Chester County,
DE,
Delaware,
Dorchester County,
Downloadable Data,
FileGDB,
Frederick County,
HU-4 Subregion,
HU4,
HU4_0206,
Harford County,
Howard County,
Hydrography,
Kent County,
MD,
Maryland,
Montgomery County,
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 Castle County,
PA,
Pennsylvania,
Prince George's County,
Queen Anne's County,
Somerset County,
St. Mary's County,
Talbot County,
US,
United States,
York County,
base maps,
cartography,
catchments,
channels,
digital elevation models,
drainage basins,
earthsciences,
environment,
geographic information systems,
geoscientificInformation,
geospatial analysis,
hydrographic datasets,
hydrographic features,
hydrology,
inlandWaters,
lakes,
land surface characteristics,
reservoirs,
river reaches,
rivers,
streamflow,
streamflow data,
streams,
surface water quality,
topography,
water resources,
waterbodies,
watersheds, Fewer tags
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