| Acronym | Meaning |
 | PAR | Photosynthetically Active Radiation |
| UN | United Nations |
| ICFD | Institute For Computational Fluid Dynamics |
| OWWS | Office Of World Weather Systems |
| ILSS | Integrated Logistics Support System |
| APA | Allied Pilot's Association |
| ACA | American Conservation Association |
| RW | Rain Showers |
| SISEX | Shuttle Imaging Spectrometer Experiment |
| TDL | Techniques Development Lab |
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