| Acronym | Meaning |
| APJ | The Astrophysical Journal |
| ICCP | International Commission Of Clouds And Precipitation |
| AEM | Application Evaluation Matrix |
| GDAS | Global Data Assimilation System |
| RFF | Research Flight Facility |
| FEMA | Federal Emergency Management Agency |
| AL/EPD | AL Environmental Protection Division |
| ITPR | Infrared Temperature Profile Radiometer |
| PRECP | Program On Nonlinearity Of Acid Precipitation Process |
| ARL | Air Resources Laboratory |