| Term | Definition |
|---|---|
| DORIS | Doppler Orbitography and Radiopositioning Integrated by Satellite |
| DPOD | DORIS extension of the ITRF for Precise Orbit Determination |
| EGS | European Geophysical Society |
| ENSG | Ecole Nationale des Sciences Géographiques |
| ENVISAT | ENVIronmental SATellite |
| EOP | Earth orientation parameter |
| ESA | European Space Agency |
| ESOC | European Space Operations Center |
| GJI | Geophysical Journal International |
| GLONASS | Global Navigation Satellite System |
| GLOSS | Global Sea Level Observing Systems |
| GPS | Global Positioning System |
| GRACE | Gravity Recovery And Climate Experiment |
| GRGS | Groupe de Recherches de Géodésie Spatiale, France |
| GRL | Geophysical Research Letters |