Quaff - U.S. National Geodetic Survey

Grid distance. The horizontal distance between two points on a flat plane. This is the type of distance obtained from map projections. Ground distance. The horizontal distance between two points as measured on the curved surface of the Earth. GRS-80 (Geodetic Reference System of 1980). ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download