| Acronym | Meaning |
 | ESSL | Earth & Sun Systems Laboratory (formerly ATD) |
| DNA | Defense Nuclear Agency |
| GEOSIF | Geoscientific Information Framework |
| NAPP | National Aerial Photography Program |
| ASHRAE | American Society Of Heating |
| LC | Inductance-capacitance |
| MCIDAS | Man-computer Interactive Data Access System |
| BATS | Biosphere-atmosphere Transfer Scheme |
| DIC | Dissolved Inorganic Carbon |
| ICAO | International Civil Aviation Organization |
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