| Acronym | Meaning |
| L2D2 | Lightweight LORAN Digital Dropsonde |
| AWOS | Automated Weather Observing System |
| TOSS | Tiros Operational Satellite System |
| SMTP | Simple Mail Transfer Protocol |
| NEDRES | National Environmental Data Referral System |
| ERTD | Environmental Research & Technology Division |
| ICSI | International Commission On Snow And Ice |
| DIF | Directory Interchange Format |
| BRASS | Basic Rapid Alarm Security System |
| AIAIT | Army Intelligence And Threat Analysis Center |