| Abbreviation | Definition |
|---|---|
| GE-GLOSS | Group of Experts on the Global Sea-level Observing System |
| GEK | Geomagnetic Electrokinetograph |
| GEM | Gulf Ecosystem Monitoring |
| GEMIM | Group of Experts on Marine Information Management |
| GEMS | Global Environment Monitoring System |
| GE-OPC | Group of Experts on Ocean Processes and Climate |
| GEOS | Geodynamics Experimental Ocean Satellite |
| GEOSAT | Geodetic Satellite |
| GEOSECS | Geochemical Ocean Sections Study |
| GEOSS | Global Earth Observation System of Systems |
| GE-RCDS | Group of Experts on Responsible National Oceanographic Data Centers |
| GESAMP | Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection |
| GETM | General Estuarine Transport Model |
| GEWEX | Global Energy and Water Cycle Experiment |
| GFA | Gust Front Detection Algorithm |
| GFDA | Gust Front Detection Algorithm |
| GFO | GEOSAT Follow-On |
| GG | Gulf of Guinea |
| GH | Gis Hydrology |
| GHCN | Global Historical Climate Network |