| Acronym | Meaning |
| HIRS | High-resolution Infrared Radiation Sounder |
| NWRC | National Weather Records Center |
| ACRIM | Active Cavity Radiometer Irradiance Monitor |
| GCM | General Circulation Model |
| OSIS | Office Of Scientific Information Service |
| DEM | Digitized Elevation Models |
| CDED | Core Dynamics And The Earth's Dynamo |
| BARC | Bhabha Atomic Research Centre |
| AL | Authorized Leave With Pay |
| AEO | Atomic Energy Organization |