| Acronym | Meaning |
 | ESSIS | Earth System Science Information System |
| ERBI | Earth Radiation Budget Instrument |
| NGS | National Geodetic Survey |
| STC | Society For Technical Communication |
| DROT | Direct Read Out Terminal |
| IT | Information Transport |
| USFS | United States Forest Service |
| UMIST | University Of Manchester Institute Of Science And Technology |
| PPTV | Parts Per Trillion (by Volume) |
| AMIE | Assimilative Mapping Of The Ionospheric Electrodynamics |
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