Filters: Tags: HEM (X)
7 results (9ms)|
Filters
Date Range
Extensions Types Contacts
Categories Tag Types Tag Schemes |
The locations of approximately 26,000 current and historical U.S. Geological Survey (USGS) surface-water monitoring gaging stations have been indexed to the NHDPlus Version 2.1 stream network. Part of the USGS National Water Information System (NWIS), these gaging stations measure water flow and water levels in streams and lakes. The NHDPlus V2 stream network locations for these gaging stations differ from stations' latitude/longitude provided in NWIS. The NWIS coordinates are frequently not coincidenet with the NHDPlus stream network.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Gaging station,
HEM,
Hydro linked data,
Linear referencing,
Linked data,
Line-Events for coastal landforms identified in National Agricultural Imagery Program maps and the landforms’ relative vulnerability to horizontal erosion due to sea-level rise ranking are linear-referenced using 1:24,000-scale resolution U.S. Geological Survey National Hydrography Dataset (NHD ) Coastline vector data to create geodata to attribute the conterminous U.S. coastline, Using the Hydrographic Event Management (HEM) tool (https://www.usgs.gov/national-hydrography/tools).), The linear-referenced geodata track along the NHD Coastline in intertidal zones open to oceans, behind barrier coasts in bays, lagoons, and estuaries, and sometimes where tidal currents reach upstream (landward) of the embayed foreshore...
Categories: Data,
Publication;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Geomorphology,
Gulf,
Gulf of Mexico,
HEM,
Hydro linked data,
Line-Events for coastal landforms identified in National Agricultural Imagery Program maps and the landforms’ relative vulnerability to horizontal erosion due to sea-level rise ranking are linear-referenced using 1:24,000-scale resolution U.S. Geological Survey National Hydrography Dataset (NHD ) Coastline vector data to create geodata to attribute the conterminous U.S. coastline, Using the Hydrographic Event Management (HEM) tool (https://www.usgs.gov/national-hydrography/tools).), The linear-referenced geodata track along the NHD Coastline in intertidal zones open to oceans, behind barrier coasts in bays, lagoons, and estuaries, and sometimes where tidal currents reach upstream (landward) of the embayed foreshore...
Categories: Data,
Publication;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Atlantic,
Connecticut,
Delaware,
Florida,
Geomorphology,
The National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD) are used to portray surface water on The National Map. The NHD represents the drainage network with features such as rivers, streams, canals, lakes, ponds, coastline, dams, and streamgages. An important use of the NHD is the analysis of surface-water systems. This analysis is possible because many types of location information can be linked to the NHD, such as flow-volume, velocity, temperature, water chemistry, pollution control classifications, aquatic species habitat, recreation designations, or water rights. Such network-linked data is typically maintained by various organizations at Federal, State, and local levels, as well as research,...
HEM events were created from fish screens, stream gages, and surface water diversions within the Lemhi SubBasin in Idaho. Data was gathered from the following sources: Idaho Fish and Game, Idaho Power, Idaho Water Engineering, and Idaho Water Resources Water Rights. The data assembled represented fish screens, water withdrawals from the stream, and flow gauging stations.
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: HEM,
HEM,
NHD,
Point Event,
environment,
Line-Events for coastal landforms identified in National Agricultural Imagery Program maps and the landforms’ relative vulnerability to horizontal erosion due to sea-level rise ranking are linear-referenced using 1:24,000-scale resolution U.S. Geological Survey National Hydrography Dataset (NHD ) Coastline vector data to create geodata to attribute the conterminous U.S. coastline, Using the Hydrographic Event Management (HEM) tool (https://www.usgs.gov/national-hydrography/tools).), The linear-referenced geodata track along the NHD Coastline in intertidal zones open to oceans, behind barrier coasts in bays, lagoons, and estuaries, and sometimes where tidal currents reach upstream (landward) of the embayed foreshore...
Categories: Data,
Publication;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: California,
Geomorphology,
HEM,
Hydro linked data,
Hydrographically linked data,
Point Events are data that USGS has linked to the NHD. These include USGS stream gages, dams, hydrologic unit outlets, stream flow alterations, and water quality stations.
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Dams,
Dams,
Divergences,
Divergences,
Gaging station,
|
|
