| Acronym | Meaning |
| N-AWIPS | National Centers Advanced Weather Interactive Processing Systems |
| STIWG | Satellite Telemtry Interagency Working Group |
| BIT | Binary Digit (either 0 Or 1) |
| PSIA | Pounds Per Square Inch Absolute |
| ISS | Integrated Sounding System |
| PPTV | Parts Per Trillion (by Volume) |
| RAPS | Real-Time Analysis And Prediction Of Storms |
| FRC | Federal Records Center |
| ALS | Advanced Light Source |
| AML | Advanced Materials Laboratory |