| Acronym | Meaning |
 | GWEN | Ground Wave Emergency Network |
| ADDS | Aviation Digital Data Service |
| SIPI | Scientists' Institute For Public Information |
| HPD | Hourly Precipitation Data |
| DTC | Developmental Testbed Center |
| AFNB | US Air Force Scientific Advisory Board |
| NCEP | National Centers For Environmental Prediction |
| BNM | Bandelier National Monument |
| BI | The Brookings Institution |
| SPO | Sacramento Peak Observatory |
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