{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "watersheds boundaries clipped to extent of San Diego County. Layer is based on Calwater 2.2.1 Hyd_Basins hydrologic units. Calwater also cross-references watershed codes implemented by the California Department of Water Resources (DWR), the California State Water Resources Control Board (SWRCB) and Regional Water Quality Control Boards (RWQCB), as well as Hydrologic Unit Codes (HUC) published by the U.S. Geological Survey (USGS) for California and the nation.", "description": "

watersheds boundaries clipped to extent of San Diego County. HYD_BASIN dataset was used as starting point and dissolved on hydrology name. Also added Mission bay as watershed per <\/SPAN>Department of Public Works, Watershed Protection Program.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "summary": "watersheds boundaries clipped to extent of San Diego County. Layer is based on Calwater 2.2.1 Hyd_Basins hydrologic units. Calwater also cross-references watershed codes implemented by the California Department of Water Resources (DWR), the California State Water Resources Control Board (SWRCB) and Regional Water Quality Control Boards (RWQCB), as well as Hydrologic Unit Codes (HUC) published by the U.S. Geological Survey (USGS) for California and the nation.", "title": "HYD_WATERSHEDS_SG", "tags": [ "Watershed", "WMA", "Water Management Area", "hydrologic unit codes" ], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 500000, "maxScale": 5000, "spatialReference": "", "accessInformation": "DPW, Department of Public Works, Watershed Protection Program", "licenseInfo": "

The watersheds north of the USA-Mexico border correspond to the hydrologic units of thehydrologic basins layer originally created by Tierra Data Systems for the California Department ofForestry. The Tijuana River Watershed south of the international border was created by the GeographyDepartment of San Diego State University (SDSU) based on manually digitized contour lines from1:50,000-scale INEGI maps. The remaining watersheds south of the international border were createdby SDSU based on 1 kilometer DEMs.Watershed data north of the international border was downloaded from the California Spatial Information Library (original file name (CALW22A)) in July 2002 and clipped to include only whole hydrologic unit polygons within the four counties. The data was reprojected from the Teale Albers projection to the California State Plane Coordinate System Zone 6, North American Datum 83 (NAD83), units in feet. The Mexican watershed data was then combined with the USA watershed data and edited to smooth watershed boundaries along the international border.The coastline north of the international border is from the parcels of the SanGIS landbase that havebeen corrected through visual adjustments based on 2000 Color Infared 2-foot resolution imagery. Thecoastline south of the international border is from the Tijuana Planning Department and ESRI􀂶s WorldDatabase.The boundaries for the data north of the international border were digitized on a 1:24,000-scale baseand thus very accurately divide surface water features depicted on1:100,000-scale Digital Line Graphhydrography. However, the delineations are primarily designed to be administrative reporting units, andthe boundaries should not be used to define authoritative drainage area above a given point as a portion of their definition includes non-physical boundaries, particularly in valley floor and urbanized coastal regions. Attribute completeness is good. Compatibility with existing state and federal watersheddelineations is good, except where explicitly different boundary configurations are applied.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>" }