| Acronym | Meaning |
 | URIP | University Research Initiative Program |
| UGGI | See IUGG |
| ASCENT | Atmospheric Sounding |
| FAQ | Frequently Asked Questions |
| ISRO | Indian Space Research Organization |
| OT | Optical Techniques Group |
| ITO | Independent Test Organization |
| MACRAT | Middle-Atmosphere Chemistry |
| HF | High Frequency |
| BGP4 | Border Gateway Protocol Version 4 |
Browse by Letter:
