# this file contains datum shift parameters, # it supplies a datum database table for GRASS 5.0 # format: # shortname "description" ellipsoid dx= dy= dz= # # where short name is a single word datum specifier, # description is a long name (enclosed in double qoutes), # ellipsoid is the acronym of the ellipsoid used with this map datum, # dx, dy and dz are the datum shift parameters. # no spaces allowed before or after the =. # # Please comment and cite the source if you add new parameters # to this list. # cited from NIMA document TR8350.2 # World Geodetic System 1984 wgs84 "World Geodetic System 1984" wgs84 dx=0.0 dy=0.0 dz=0.0 # World Geodetic System 1972 wgs72 "World Geodetic System 1972" wgs72 dx=0.0 dy=0.0 dz=5.0 # North American 1927 nad27 "North American 1927" clark66 dx=-22.0 dy=157.0 dz=176.0 # North American 1983 (CONUS) nad83 "North American 1983" grs80 dx=0.0 dy=0.0 dz=0.0 # Alaska and Canada a-can "Alaska and Canada NAD27" clark66 dx=-9.0 dy=151.0 dz=185.0 # European datum eur "European" international dx=-84.0 dy=-103.0 dz=-127.0 # Tokyo datum mean tokyo "Tokyo mean" bessel dx=-128.0 dy=481.0 dz=664.0 # Australian Geodetic aus "Australian Geodetic" australian dx=-122.0 dy=-41.0 dz=146.0 # Ordnance Survey of Great Britain (1936) osgb36 "Ordnance Survey of Great Britain" airy dx=368.0 dy=-120.0 dz=425.0 # South American 1969 (= SAD-69/Brazil) # SAm69 "South American 1969" SAm69 dx=-77.0 dy=3.0 dz=-45.0 SAD-69 "SAD-69/Brasil" SAm69 dx=-60.0 dy=-2.0 dz=-41.0 # Pulkovo 1942 ( = S-42) pulkovo "Pulkovo 1942" krassovsky dx=28.0 dy=-130.0 dz=-95.0 # European 1950 mean eur50 "European 1950 mean" international dx=-87.0 dy=-98 dz=-121 # European 1979 mean eur79 "European 1979 mean" international dx=-86 dy=-98 dz=-119 # AGD66 Australian Geodetic 1966 [from NIMA TR8350.2] agd66 "Australian Geodetic 1966" australian dx=-133 dy=-48 dz=148 # AGD84 Australian Geodetic 1984 [from NIMA TR8350.2] agd84 "Australian Geodetic 1984" australian dx=-134 dy=-48 dz=149 # GDA94 (nearly the same as wgs84) # International Union of Geodesy and Geophysics Geographic Reference System 1980 grs80 "Geographic Reference System 1980" wgs84 dx=0.0 dy=0.0 dz=0.0 # Rome 1940 rome40 "Rome 1940" international dx=-225 dy=-65 dz=9 # from Geodetic Datum List, Peter H. Dana, 07/12/97, dlist.html # South Asia Sasia "South Asia" fschr60m dx=7.0 dy=-10.0 dz=-26.0 # S-42 Pulkovo 1942 S-42 "S-42" krassovsky dx=28.0 dy=-121.0 dz=-77.0 # Potsdam Rauenberg 1950 DHDN potsdam "Potsdam Rauenberg 1950 DHDN" bessel dx=606.0 dy=23.0 dz=413.0 # Carthage 1934 Tunisia carthage "Carthage 1934 Tunisia" clark80 dx=-263.0 dy=6.0 dz=431.0