Are the altimetry data adjusted to the Geoid, or only to the Ellipsoid?
The ICESat/GLAS elevation data are relative to the ellipsoid.
The data also have a parameter indicating the geoid height, which is the height of the EGM2008 geoid above the TOPEX/Poseidon ellipsoid for the first and last shot in the record:
| GLAH06 | Data_40HZ/Geophysical/d_gdHt |
| GLAH12 | Data_40HZ/Geophysical/d_gdHt |
| GLAH13 | Data_40HZ/Geophysical/d_gdHt |
| GLAH14 | Data_40HZ/Geophysical/d_gdHt |
| GLAH15 | Data_40HZ/Geophysical/d_gdHt |
Last Updated August 2017