| Acronym | Meaning |
| ETH | Eidgenossische Technische Hochschule |
| GGI | GPS Geoscience Instrument |
| PRE-STORM | Preliminary Regional Experiment-STORM |
| PDM | Pulse Duration Modulation |
| ASC | ASTER Steering Committee |
| POLEX | Polar Experiment |
| SCATT | Scatterometer |
| USGCRP | United States Global Change Research Program |
| MRN | Meteorological Rocket Network |
| IMD | Indian Meteorology Department |