Shapefiles contain a single class of "vector" data such as points, lines, or polygons. More info on format ; for developers. A gridfile with "country mask" indicates that the areas outside the selected country are masked out. For the other gridfiles, NODATA is only used for areas covered with water, except for the land cover grids, on which water is a separate class.
A DBF dBase file is a dbase format database table. Resolution The resolution is the size of each grid cell expressed as the length of one side of one square cell. The units are in arc degrees, minutes or seconds. These data were collected seperately than the statewide collection following Hurricane Floyd, and on multiple dates since the mid's through the present. It has the following elevation data products available at US and International extents:. Click Here to execute a search for available data with the keyword "elevation.
Vector contour line data are often useful for visual or analytical purposes. Many local governments provide these data at varying contour intervals, for download from their websites. Go to NC local govt. In many cases, vector contour data is already on the Geodata Server. For example, to download contour data for a large area within the City of Raleigh from their tiled interface would take much longer than downloading this single geodatabase.
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