View example sentences and word forms for Datums.
Datums meaning
third-person singular simple present indicative of datum
Example sentences (5)
Examples of global datums include World Geodetic System (WGS 84), the default datum used for Global Positioning System WGS 84 is the default datum used in most GPS equipment, but other datums can be selected.
Datums may be global, meaning that they represent the whole earth, or they may be local, meaning that they represent a best-fit ellipsoid to only a portion of the earth.
Different datums assign slightly different coordinates to the same location, so in large scale maps, such as those from national mapping systems, it is important to match the datum to the projection.
Several datums were in use around the world, all using different spheroids, because mean sea level undulates by as much as 100 metres worldwide.
The Cartesian systems of different datums are not equivalent.