| Acronym | Meaning |
| IFC | Intensive Field Campaign |
| NIMBUS | Networked Information Management Client-Based User Service |
| SMOW | Standard Mean Ocean Water |
| AGU | American Geophysical Union |
| ACO/UK | ACO/United Kingdom |
| SGS | Subgrid Scale |
| BAI | Biosphere-Atmosphere Interactions Project |
| ANL-E | Argonne National Laboratory-East |
| PEC | Performance Management Committee |
| EIB | Environmental Improvement Board |