Definitions
Geodetic Reference System 1980 - GRS80
The following PDF file contains the definition of GRS80 as an excerpt from Moritz, H.(1988)
European Vertical Reference System - EVRS
Geodetic Reference System 1980 - GRS80
The following PDF file contains the definition of GRS80 as an excerpt from Moritz, H.(1988)
European Vertical Reference System - EVRS
Service