| Acronym | Meaning |
| WEPOCS | Western Equatorial Pacific Ocean Climate Studies |
| PPHM | Parts Per Hundred Million |
| ACD | Advanced Conceptual Design |
| TDL | Tunable Diode Laser |
| LITE | Lidar In Space Technology Experiment |
| O AND E | Operations And Equipment |
| LCC | Life Cycle Cost |
| APS | Atomic Power Station |
| FSTC | Foreign Science & Technology Center |
| HIRS | High-resolution Infrared Radiation Sounder |