geodetic reference system
reference frame used in geodesy, surveying, cartography and navigation
geopotential model
model of the gravitational field around Earth
The Stone of Million
Byzantine mile-marker monument in Constantinople
vertical datum
reference surface for vertical positions
North American Datum
series of geodesic datums in 1901, 1923, and 1983 versions
North American Datum
series of geodesic datums in 1901, 1923, and 1983 versions
Irish grid reference system
system of geographic grid references used for paper mapping in Ireland
Irish Transverse Mercator
geographic coordinate system for Ireland
Baltic Sea vertical datum
vertical datum based on Baltic Sea level
Bermuda National Grid
kind of Transverse Mercator projection
International Terrestrial Reference System
world spatial reference system co-rotating with the Earth in its diurnal motion in space
initial point
class of specific point on Earth that marks the beginning point for a cadastral surveys; it establishes a local geographic coordinate system for the surveys that refer to that point
Datum Austria
geodetic datum
World Geodetic System
geodetic reference system
Swiss coordinate system
geographic coordinate system used in Switzerland for maps and surveying by the Swiss Federal Office of Topography
Web Mercator
Mercator projection variant
State Geodetic Administration of the Republic of Croatia
government agency in Croatia; member of EuroGeographics