| Acronym | Meaning |
| GCP | Global Chemistry Program |
| CALLS | California Academia Libraries List Of Serials |
| GEO 2000 | National Science Foundation's Geosciences Beyond 2000 |
| GLERL | Great Lakes Environmental Research Lab |
| PGS | Product |
| OSS | Observation System Simulation |
| MISR | Multiangle Imaging Spectroradiometer |
| GPS | Global Positioning System |
| IR | Infrared |
| PMS | Performance Measurement System |