Contents
How to view the USGS watershed boundary dataset?
Explore WBD Hydrologic Units (HU), USGS national Water Information System (NWIS), ArcCatalog View, Attribute Tables, and Domains for the Watershed Boundary Dataset (After opening the document, zoom in for greater detail.)
What do I need to know about r.watershed?
If no map or value is given, r.watershed assumes no disturbed land. This input is used for the RUSLE calculations. Option blocking specifies terrain that will block overland surface flow. Blocking cells and streams stop the slope length for the RUSLE.
What are the basins on the west coast?
Hevesi, J.A., and Johnson, T.D., 2016, Estimating spatially and temporally varying recharge and runoff from precipitation and urban irrigation in the Los Angeles Basin, California: U.S. Geological Survey Scientific Investigations Report 2016–5068, 192 p., http://dx.doi.org/10.3133/sir20165068.
Where are the groundwater basins in Los Angeles?
The Coastal Los Angeles Basin study unit is approximately 860 square miles and consists of the Santa Monica, Hollywood, West Coast, Central, and Orange County Coastal Plain groundwater basins (California Department of Water Resources, 2003). The basins are bounded in part by faults, including the Newport-Inglewood fault zone, and are filled with…
Which is the most comprehensive Hydrography Dataset in the US?
The National Hydrography Dataset (NHD) represents the water drainage network of the United States with features such as rivers, streams, canals, lakes, ponds, coastline, dams, and streamgages. The NHD is the most up-to-date and comprehensive hydrography dataset for the Nation.
How are hydrologic unit boundaries determined in the WBD?
Hydrologic unit boundaries in the WBD are determined based on topographic, hydrologic, and other relevant landscape characteristics without regard for administrative, political, or jurisdictional boundaries. The WBD seamlessly represents hydrologic units at six required and two optional hierarchical levels.
Which is Geodatabase file contains NHD and wbd data?
The shapefile download simplifies this structure by containing all of the feature classes as separate shapefiles and tables as separate data files. The NHD file geodatabase download contains NHD data in the Hydrography feature dataset. It also includes the WBD in a second feature dataset.