| Acronym | Meaning |
| ANSS | American Nature Study Society |
| GRASP | Graphic Animation System For Professionals |
| STSP | Solar Terrestrial Science Programme |
| ICH | Inter-Union Commission On The Lithosphere |
| FOB | Free On Board |
| TCMRS | Tropical Climate Monitoring And Research Station |
| ALDF | Animal Legal Defense Fund |
| HARVARD | Harvard/Smithsonian Center For Astrophysics |
| ECS | EOSDIS Core System |
| AWC | Aviation Weather Center |