How does the data set represent geographic features?
• 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 (5222) • String (11074) • GT-polygon composed of chains (5223) • 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 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 1.0 Ordinates (y-coordinates) are specified to the nearest 1.0 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
• 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 (14650) • String (21604) • GT-polygon composed of chains (7720) • What coordinate system is used to represent geographic features? The map projection used is Lambert Conformal Conic. Projection parameters: Standard_Parallel: 33 Standard_Parallel: 45 Longitude_of_Central_Meridian: -106 Latitude_of_Projection_Origin: 30 False_Easting: 0.00000 False_Northing: 0.00000 Planar coordinates are encoded using coordinate pair 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? nm_clms.clmsSummary of values for number and type of mining claims in each section from OF99-325. The data is tied to an MTRS code
• How are geographic features stored in the data set? This is a Vector data set. It contains the following vector data types (SDTS terminology): • G-polygon (555) • 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 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D_WGS_1984. The ellipsoid used is WGS_1984. The semi-major axis of the ellipsoid used is 6378137.000000. The flattening of the ellipsoid used is 1/298.257224. • How does the data set describe geographic features? parksNational Park System Unit Boundaries in GIS Format (Source: RITA/BTS) REVISIONREVISION is a 2-digit number that will be incremented individually for each record whenever a change is made to one of its fields. (Source: RITA/BTS) Range of values Minimum:00 Maximum:99 ShapeFe
• How are geographic features stored in the data set? This is a Raster data set. It contains the following raster data types: • Dimensions 10000 x 10000 x 1, type Pixel • What coordinate system is used to represent geographic features? The map projection used is Lambert Conformal Conic. Projection parameters: Standard_Parallel: 34.3333333333333 Standard_Parallel: 36.1666666666667 Longitude_of_Central_Meridian: -79 Latitude_of_Projection_Origin: 33.75 False_Easting: 2000000.00261667 False_Northing: 0.000000 Planar coordinates are encoded using coordinate pair Abscissae (x-coordinates) are specified to the nearest 0.500000 Ordinates (y-coordinates) are specified to the nearest 0.500000 Planar coordinates are specified in US 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. The flattening of the ellipsoid used is 1/298.257222101. • How does the data set describe g
• How are geographic features stored in the data set? This is a Vector data set. It contains the following vector data types (SDTS terminology): • GT-polygon composed of chains (1372) • 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 0.002. Longitudes are given to the nearest 0.002. Latitude and longitude values are specified in Decimal Degrees. • How does the data set describe geographic features? ib_dathkdd.dbfShapefile Attribute Table LEGENDdescription of thickness category (character data, width 28) ValueDefinition 28 to 42 inches 42 to 66 inches channels or no coal greater than 66 inches insufficient data less than 28 inches No Coal Unassessed Entity_and_Attribute_Overview: Areas defined as “no coal” or “Insufficient Data” are where the *position* of the coals is identifiable using the surrounding stratigraphy, but there is no coal pres
