The geographic coordinates serve to identify the position of a point on the land surface.
The longitude ( distance angular is the latitude (angulardistance from the Equator) along the parallel of the place from an arbitrary prime meridian ). The latitudes and the longitudes are expressed in seconddegrees, minuteren and. Currently the meridian of Greewich is used who passes for omonimo the observatory.
Geographic coordinates are formed therefore: xx° xx' xx"N yy° yy' yy" and
An example: 41° 53' 24"N 12° 29' 32" and are the coordinates of the second Colosseo Google Earth
In Italy it was use (not of all scomparso) using like prime meridian that one passing forthe observatory of Mario Mount (to Rome, 12° 27,2 ' and of Greewich). Such system of coordinates came usedMilitary Geographic Institute (IGM) in order to modernize to the data to the standard World Geodetic System84 (WGS84), on which Sistema of total positioning (GPS is based also). Standard WGS84 is based on a geodetic model of the Earth standard.The EGM96 is a geoide defined from a system of spherical harmonicas.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment