NH GRANIT Basic Data StandardsThe following contains information regarding required data standards for data distributed by NH GRANIT.
Standard ProjectionAll GRANIT data are referenced to
New Hampshire State Plane Feet, North American Datum 1983 (NAD83). The
specification for the ESRI projection (.prj) file includes: Projection: Stateplane Zone: 4676 (This is the USGS zone. The FIPSZONE is 2800.) Datum: NAD83 Units: Survey Feet The NAD83 New Hampshire State Plane Coordinate System is defined as follows: Projection: Transverse Mercator Spheroid: GRS1980 Scale Factor: .9999666667 Central Meridian: -71 40 00 Origin: 42 30 00 False Easting: 300000 m (984,250 ft) False Northing 0 Download a sample projection file: coverage.prj or shapefile.prj
MetadataMetadata, or "data about data", helps to ensure the long-term utility of a data set by capturing the basic characteristics of a data or information resource. A metadata record includes a general description, what time period the data represents, sources used to develop the data, and an overview of the data capture/automation procedures. As an official GIS Clearinghouse Node, NH GRANIT is required to provide FGDC-compliant metadata for all layers distributed through the online metadata database. For more information about GRANIT metadata standards, please click here.
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