Iberian Geoid Model of 1995

On the Iberian Peninsula (including Spain, Portugal and Andorra), the Iberian Geoid Model of 1995 (IBERGEO95) relates the difference between the GRS80 ellipsoid and a surface approximating mean sea level. The model data exist in a single binary file consisting of a 7.5 by 7.5-minute grid of elevation difference between the two surfaces. The elevation differences at non-grid point locations are interpolated.

The "IBERGEO95" vertical transform has the following parameters:

The path parameter can either be fully qualified or relative to the location of the data source file in which it is defined. The path string should not end with a slash character.