| Acronym | Meaning |
 | ATSR | Along Track Scanning Radiometer |
| PCM | Parallel Climate Model |
| RDT&E | Research, Development, Test And Evaluation |
| AFSSO | Air Force Special Security Office |
| MHZ | Megahertz |
| IERS | International Earth Rotation Service |
| NAE | National Aeronautical Establishment |
| NREN | National Research And Education Network |
| WVIOP | Water Vapor Intensive Observing Period |
| POP | Probability Of Precipitation |
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