| Acronym | Meaning |
 | CDIAC | Carbon Dioxide Information Analysis Center |
| CCNS | Concerned Citizens For Nuclear Safety |
| GWEN | Ground Wave Emergency Network |
| NPS | Numerical Product Service |
| DOT | Department Of Transportation |
| DART | Data Assimilation Research Testbed |
| NESC | National Environmental Satellite Center |
| AFSAS | Air Force Director For Strategic Force Analysis |
| MAN | Metropolitan Area Network |
| (ES) | Sporadic E |
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