On the Iberian Peninsula (including Spain, Portugal and Andorra), the Iberian Gravimetric Geoid of 2000 (IGG2005) 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 1.5 by 1.5-minute grid of elevation difference between the two surfaces. The elevation differences at non-grid point locations are interpolated.
The "IGG2005" vertical transform has the following parameters:
|
Parameter Name |
Parameter String |
Units |
|
Path to Data File |
path |
String |
|
Data File Name |
file |
String |
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.