20201215 11550000 1.0 FGDC CSDGM MetadataVerify - ISD GIS FALSE SoCo_USGS_10M_DEM_1990 Local Area Network 002 -13763300.879582 -13612030.806323 4573972.070892 4713330.209610 1 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) WGS_1984_Web_Mercator_Auxiliary_Sphere <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.8'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>148923141.92838538</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> 32 FALSE Mixed 1 Cache/Mixed TRUE continuous unsigned integer 20230413 07461900 20230413 07461900 500000 5000 FGDC Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388 SoCo_USGS_10M_DEM_1990 2004-04-07T00:00:00 National Cartography & Geospatial Center Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, soils mapping, resource monitoring, mapping, and visualization applications. Customer Services Representative 501 Felix St, Bldg 23 Fort Worth TX 76115 US 817-509-3400 817-509-3469 USGS EROS U.S Geological Survey (USGS), EROS Data Center 47914 252nd St Sioux Falls SD 57198 (605)594-6511 M-F 8am to 4pm 1 -123.637835 -122.278953 38.941743 37.961384 Area centered on Sonoma County 2000-01-03T00:00:00 <div style='text-align:Left;'><div><div>The U.S. Geological Survey has developed a National Elevation Database (NED).The NED is a seamless mosaic of best-available elevation data. The 7.5-minute elevation data for the conterminous United States are the primary initial source data. In addition to the availability of complete 7.5-minute data, efficient processing methods were developed to filter production artifacts in the existing data, convert to a consistent datum, edge-match, fill slivers of missing data at quadrangle seams, recast the data to a consistent geographic projection and convert all elevation values to decimal meters as a consistent unit of measure. NED has a resolution of one-third arc-second (approximately 10 meters) for much of the conterminous United States, Hawaii and Puerto Rico in a NAD83 datum. There is a resolution of two arc-seconds for Alaska and the datum is NAD27. NED at 10 meters is created using the same methods outlined above with the source data being mostly the 10m DEMs. DEMs at 5 meters, 1/3 arc-second, and 1/9 arc-second maps are also used where available. In some cases, the 10m NED is resampled from LIDAR or created using aerial photography. One of the effects of the NED processing steps is a much-improved base of elevation data for calculating slope and hydrologic derivatives. Artifact removal greatly improves the quality of the slope, shaded-relief, and synthetic drainage information that can be derived from the elevation data. Geospatial elevation data are used by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping, and visualization applications. NRCS has elected to ONLYserve NED 10 which is 10 meter or better and not NED 10 which was resampled from 30 meter. NRCS also serves the maps in a UTM projection. These two facts differentiate the maps from those served at <a href='http://seamless.usgs.gov/'>http://seamless.usgs.gov/</a>. </div></div></div> Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, soils mapping, resource monitoring, mapping, and visualization applications. U.S. Department of Agriculture (USDA) Natural Resources Conservation Services, National Cartography & Geospatial Center Earth Science Land Surface Topography Landforms Terrain Elevation DEM Digital Elevation Model USGS NRCS NCGC. National Cartography & Geospatial Center Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, soils mapping, resource monitoring, mapping, and visualization applications. Customer Services Representative 501 Felix St, Bldg 23 Fort Worth TX 76115 US 817-509-3400 817-509-3469 National Cartography & Geospatial Center Horizontal units are in Feet, Vertical Units are in meters. 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