| Acronym | Meaning |
| AT | Abnormal Transient |
| DARE | Denver AWIPS Risk Reduction And Requirements Evaluation |
| STI | Scientific & Technical Information |
| TOSS | Tiros Operational Satellite System |
| CALTECH | California Institute Of Technology |
| DIB | Directory Information Base |
| ALAP | As Low As Practical |
| PRECP | Program On Nonlinearity Of Acid Precipitation Process |
| MATCH | Model For Atmospheric Chemistry And Transport |
| ACFM | Actual Cubic Feet Per Minute |