| CORS |
Continuously Operating Reference Stations |
| COSMIC |
Constellation Observing System for Meteorology Ionosphere and Climate |
| CYGNSS |
Cyclone Global Navigation Satellite System |
| DART |
Deep-ocean Assessment and Reporting of Tsunamis |
| DEM |
digital elevation model |
| DORIS |
Doppler Orbitography and Radiopositioning Integrated by Satellite |
| GEDI |
Global Ecosystem Dynamics Investigation |
| GGOS |
Global Geodetic Observing System |
| GIA |
glacial isostatic adjustment |
| GNSS |
Global Navigation Satellite System |
| GNSS-IR |
GNSS Interferometric Reflectometry |
| GNSS-R |
GNSS Reflectometry |
| GNSS-RO |
GNSS Radio Occultation |
| GPS |
Global Positioning System |
| GRACE |
Gravity Recovery and Climate Experiment |
| GRACE-FO |
GRACE Follow On |
| GRUAN |
Global Climate Observing System Reference Upper-Air Network |
| IAG |
International Association of Geodesy |
| ICESat |
Ice, Cloud, and land Elevation Satellite |
| IDS |
International DORIS Service |
| IERS |
International Earth Rotation and Reference Systems Service |
| IGS |
International GNSS Service |
| ILRS |
International Laser Ranging Service |
| InSAR |
Interferometric Synthetic Aperture Radar |
| IPCC |
Intergovernmental Panel on Climate Change |
| ITRF |
International Terrestrial Reference Frame |
| IVS |
International VLBI Service for Geodesy and Astrometry |
| JPL |
Jet Propulsion Laboratory |
| M |
magnitude |
| NASA |
National Aeronautics and Space Administration |
| NGA |
National Geospatial-Intelligence Agency |
| NGS |
National Geodetic Survey |
| NISAR |
NASA-Indian Space Research Organisation Synthetic Aperture Radar |
| NOAA |
National Oceanic and Atmospheric Administration |
| NOTA |
Network of the Americas |
| NSF |
National Science Foundation |
| NSRS |
National Spatial Reference System |
| PBO |
Plate Boundary Observatory |
| Pol-InSAR |
Polarimetric SAR Interferometry |