| Acronym | Meaning |
 | ET | Evapotranspiration |
| BARRNET | Bay Area Regional Research Network |
| MVS | Multiple Virtual Storage |
| AL | Authorized Leave With Pay |
| ATM | Apollo Telescope Mount |
| UNICOS | Unix Cray Operating System |
| INPA | Instituto Nacional De Pesquisas Da Amazonia |
| NEXUS | Next-generation Upper-air Sounding System |
| GREM | Geopotential Research Explorer Mission |
| ISTP | International Solar Terrestrial Program |
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