| Acronym | Meaning |
 | URSI | International Union Of Radio Science |
| ESSCO | Environmental Science & Services Corporation |
| SPPS | System Plot Package Simulator |
| DROT | Direct Read Out Terminal |
| FPD | Facilities Planning And Design |
| ACCENT | Atmospheric Chemistry Of Combustion Emissions Near The Tropopause |
| ACAS | Advisory Committee For Atmospheric Sciences |
| NWSOP | National Winter Storms Operations Plan |
| ARI | Alternate Rod Insertion |
| ACO | Advance Change Order |
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