How does the data set represent geographic features?
• How are geographic features stored in the data set? This is a Raster data set. It contains the following vector data types (SDTS terminology): • G-polygon (191) • What coordinate system is used to represent geographic features? The map projection used is Lambert Conformal Conic. Projection parameters: Standard_Parallel: 34.333333 Standard_Parallel: 36.166667 Longitude_of_Central_Meridian: -79.000000 Latitude_of_Projection_Origin: 33.750000 False_Easting: 2000000.002617 False_Northing: 0.000000 Planar coordinates are encoded using coordinate pair Abscissae (x-coordinates) are specified to the nearest 0.000256 Ordinates (y-coordinates) are specified to the nearest 0.000256 Planar coordinates are specified in survey feet The horizontal datum used is North American Datum of 1983. The ellipsoid used is Geodetic Reference System 80. The semi-major axis of the ellipsoid used is 6378137.000000. The flattening of the ellipsoid used is 1/298.257222.
• How are geographic features stored in the data set? This is a Vector data set. It contains the following vector data types (SDTS terminology): • Point (3045) • String (9945) • GT-polygon composed of chains (3016) • What coordinate system is used to represent geographic features? The map projection used is Albers Conical Equal Area. Projection parameters: Standard_Parallel: 10 Standard_Parallel: 40 Longitude_of_Central_Meridian: 80 Latitude_of_Projection_Origin: 20 False_Easting: 0.00000 False_Northing: 0.00000 Planar coordinates are encoded using coordinate pair Abscissae (x-coordinates) are specified to the nearest 1000 Ordinates (y-coordinates) are specified to the nearest 1000 Planar coordinates are specified in METERS The horizontal datum used is Unknown. The ellipsoid used is Clarke 1866. The semi-major axis of the ellipsoid used is 6378206.4. The flattening of the ellipsoid used is 1/294.98. • How does the data set describe geographic features? Entity_and_Attribute_Overview: Th
• How are geographic features stored in the data set? This is a Vector data set. It contains the following vector data types (SDTS terminology): • Label Point (117) • String (374) • GT-polygon composed of chains (118) • What coordinate system is used to represent geographic features? Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest Unknown. Longitudes are given to the nearest Unknown. Latitude and longitude values are specified in Decimal Degrees. The horizontal datum used is North American Datum of 1927. The ellipsoid used is Clarke 1866. The semi-major axis of the ellipsoid used is 6378206.4. The flattening of the ellipsoid used is 1/294.98. • How does the data set describe geographic features? UT_FEDL.PATPolygon attribute table (Source: ARC/INFO) Entity_and_Attribute_Overview: Items in the Polygon Attribute Table AREA Area of poly/region in square coverage units Computed Positive real numbers PERIMETER
• How are geographic features stored in the data set? This is a Vector data set. It contains the following vector data types (SDTS terminology): • Point (21426) • String (31431) • GT-polygon composed of chains (11075) • What coordinate system is used to represent geographic features? The map projection used is Transverse Mercator. Projection parameters: Scale_Factor_at_Central_Meridian: 0.99960 Longitude_of_Central_Meridian: -114 Latitude_of_Projection_Origin: 42 False_Easting: 500000.0 False_Northing: 100000.0 Planar coordinates are encoded using coordinate pair Abscissae (x-coordinates) are specified to the nearest 10 Ordinates (y-coordinates) are specified to the nearest 10 Planar coordinates are specified in meters The horizontal datum used is North American Datum of 1927. The ellipsoid used is Clarke 1866. The semi-major axis of the ellipsoid used is 6378206.4. The flattening of the ellipsoid used is 1/294.98. • How does the data set describe geographic features? id_clms.clmsSumma
• How are geographic features stored in the data set? This is a Vector data set. It contains the following vector data types (SDTS terminology): • Point (31283) • String (48304) • GT-polygon composed of chains (18066) • What coordinate system is used to represent geographic features? Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 12 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -111.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0 Planar coordinates are encoded using coordinate pair Abscissae (x-coordinates) are specified to the nearest .1 Ordinates (y-coordinates) are specified to the nearest .1 Planar coordinates are specified in meters The horizontal datum used is North American Datum of 1927. The ellipsoid used is Clarke 1866. The semi-major axis of the ellipsoid used is 6378206.4. The flattening of the ellipsoid used is 1/294.98. • How does the dat
