| Acronym | Meaning |
| IGY | International Geophysical Year |
| BART | Biosphere Atmosphere Research And TRaining |
| SSM/I | Special Sensor Microwave Imager |
| SSS | Software Segment Specification |
| THEMIS | N/A |
| FEMA | Federal Emergency Management Agency |
| CCIG | Cloud Climate Interactions Group |
| MRI | Minority Research Initiation |
| RAM | Random Access Memory |
| ESD | Environmental Satellite Data |