| Acronym | Meaning |
| HARS | High-Altitude Route Structure Workstation |
| APS | American Physical Society |
| LBA/TRMM | Large Scale Biosphere-Atmosphere Experiment In Amazonia/Tropical Rainfall Measuring Mission |
| ILEC | International Lake Environment Committee |
| RO# | Rossby Number |
| ACM | Advanced Cruise Missile |
| EAA | Export Administration Act |
| SJVAQS | San Joaquin Valley Air Quality Study |
| PPB | Parts Per Billion |
| ND | Near-dedicated |