| Acronym | Meaning |
 | WGS84 | World Geodetic Survey 1984 |
| NGO | Non-Government Organizations |
| LL | Lincoln Laboratories |
| BAE | British Aerospace |
| TIFF | Tag Image File Format |
| ZTD | Zenith Tropospheric Signal Delay |
| GHRS | Goddard High Resolution Spectograph |
| TAO | Thermal Array In The Ocean |
| SCGB | Special Committee For The Geosphere-Biosphere |
| ESSA | Environmental Science Services Administration |
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