| Acronym | Meaning |
| ESIS | Earth Science Information System |
| UAV | Unmanned Aerial Vehicles |
| NCAR | National Center For Atmospheric Research |
| NSDL | National Science Digital Library |
| FOS | Flight Operations Segment |
| UID | User Identification |
| IMS | Information Management System |
| FRG | Federal Republic Of Germany |
| UVDM | Ultraviolet Double Monochromator |
| TCZ | Tropical Cloud Zone |