20060620 07353900 FALSE 20060710 16153300 20090505 12322300 {A1007B7F-DA48-4E0B-A4E6-1EA52646B523} Complete As needed This is Category I data. Category I data are public domain and available to share with Caltrans partners. This is Category I data. Category I data are public domain and available to share with Caltrans partners. mailing and physical address
1120 N St., MS 38
Sacramento CA 95814 USA Caltrans TSI/GIS Data Branch (916) 654-5037 (916) 654-6583 none elevationcontour line CA none California Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.1.0.722enThe CON500 contour feature class is derived from DMA (Defense Mapping Agency) 1-degree Digital Elevation Models (DEMs). They are also called Digital Terrain Elevation Data Level 1 (DTED-1). Conversion was made from DEMs in USGS format to ARC/INFO lattices. To obtain smooth contours,the lattices were filtered with the low option. Subsequent contours were generated using the GRID package. Contour polygons are classified on the basis of categories of elevation range read from a lookup table. In this CON500 feature class, the contour interval (range) is 154.4 meters or 500 feet. The unit of feature class was a 1-degree by 1-degree block corresponding to 1/2 of a 1:250000 USGS quad grid. The CON500 county feature classes were derived from the 1-degree by 1-degree block area through an append and intersect algorithm. Degree gridlines were manually removed. CON500 polygons represent 500-foot interval elevation contours in California.The CON500GN feature class is a generalized, smaller version of this feature class.Caltrans1992con500con500vector digital datahttp://www.dot.ca.gov/hq/tsip/gis/datalibrary/gisdatalibrary.htmlUnknownpublication date19920801-122.373545-121.46875837.90575237.454378-122.373545-121.46875837.45437837.905752Shapefile Caltrans TSI/GIS Data Branch Metadata Coordinator mailing and physical address Sacramento CA 95814
1120 N St., MS 38
USA (916) 654-5037 (916) 654-6583 enFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local time20090505http://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile Caltrans TSI/GIS Data Branch mailing and physical address
1120 N St., MS 38
Sacramento CA 95814 USA (916) 654-5037 (916) 654-6583 This is Category I data. Category I data are public domain and available to share with Caltrans partners. Downloadable Data0.8170.817 20060612Derived from Defense Mapping Agency (DMA) 1-degree digital elevation models (DEMs) by using Arc/Info lattices. To obtain smooth contours,the lattices were filtered with the low option. Subsequent contours were generated using the GRID package. Degree gridlines were manually removed.Arc/Info 6.0.1UnknownDMA 1-degree Digital Elevation Models (DEMs)U.S. Defense Mapping Agency (DMA)Unknownmodel250000magnetic tapeDMA1-degree DEMs with resolution of 3 arc-seconds (approximately 90 meters)19920801publication dateContours were computer-generated using a grid-based algorithm. Feature accuracy is fair. It is adequate for use as reference information in GIS applications at map scales not larger than 1:250,000.CON500 is complete as of 19920801.130 meters, circular error at 90% probability130Absolute horizontal accuracy (feature to datum) estimate from USGS DEM Data Users Guide documentation+/- 30 meters 30Absolute vertical accuracy (feature to mean sea level) from USGS DEM Data Users Guide documentationMicrosoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.1.0.722con500-122.373545-121.46875837.90575237.4543781-122.373545-121.46875837.90575237.4543781ISO 19115 Geographic Information - MetadataDIS_ESRI1.0dataset002file://\\svhqs02\newgis\data\shapes\geo83\counties\ala\con500.shpLocal Area Network0.817ShapefileVectorSimplePolygonFALSE486FALSEFALSEG-polygon486GCS_North_American_1983Decimal degrees0.0000000.000000North American Datum of 1983Geodetic Reference System 806378137.000000298.257222GCS_North_American_1983486con500Feature Class486CON500 polygons represent 500-foot interval elevation contours in California.Caltrans TSI/GIS Data BranchFIDFIDOID400Internal feature number.ESRISequential unique whole numbers that are automatically generated.ShapeShapeGeometry000Feature geometry.ESRICoordinates defining the features.AREAAREANumber195Caltrans TSI/GIS Data BranchArea of featurePERIMETERPERIMETERNumber195Caltrans TSI/GIS Data BranchPerimeter of featureCON500_CON500_Number10Caltrans TSI/GIS Data BranchIdentifierCON500_IDCON500_IDNumber10Caltrans TSI/GIS Data BranchIdentifierRANGE_CODERANGE_CODENumber10Caltrans TSI/GIS Data Branch130Numeric code representing 500 feet of elevation, i.e., code 1 = 0 to 152.4 meters (500 feet)20090505