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Filters: Tags: Subbasin (X) > Types: Citation (X)

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The USGS National Hydrography Dataset (NHD) service from The National Map (TNM) is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of surface water (lakes, ponds, and reservoirs), paths through which water flows (canals, ditches, streams, and rivers), and related entities such as point features (springs, wells, stream gages, and dams). The information encoded about these features includes classification and other characteristics, delineation, geographic name, position and related measures, a "reach code" through which other information can be related to the NHD, and the direction of water flow. The network of reach codes delineating water and...
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The Watershed Boundary Dataset (WBD) from The National Map (TNM) defines the perimeter of drainage areas formed by the terrain and other landscape characteristics. The drainage areas are nested within each other so that a large drainage area, such as the Upper Mississippi River, will be composed of multiple smaller drainage areas, such as the Wisconsin River. Each of these smaller areas can further be subdivided into smaller and smaller drainage areas. The WBD uses six different levels in this hierarchy, with the smallest averaging about 30,000 acres. The WBD is made up of polygons nested into six levels of data respectively defined by Regions, Subregions, Basins, Subbasins, Watersheds, and Subwatersheds. For additional...
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This is one of five general categories that contain the water related elements of the Rio Grande/Bravo basin. This category includes some of hydrologic and climatic components of the United States and Mexico that overlap with the basin boundary. The vector datasets under this category are the main rivers, water bodies, monitoring points, watershed boundaries. Regarding the raster data sets, the category includes incofmation on average monthly precipitation, temperature and evapotranspiration on the basin


    map background search result map search result map USGS National Watershed Boundary Dataset (WBD) Downloadable Data Collection - National Geospatial Data Asset (NGDA) Watershed Boundary Dataset (WBD) USGS Hydrography (NHD) Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) National Hydrography Dataset (NHD) Hydrology and climate elements on the Rio Grande/Bravo basin Hydrology and climate elements on the Rio Grande/Bravo basin USGS Hydrography (NHD) Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) National Hydrography Dataset (NHD) USGS National Watershed Boundary Dataset (WBD) Downloadable Data Collection - National Geospatial Data Asset (NGDA) Watershed Boundary Dataset (WBD)