| Acronym | Meaning |
| SLPA | Sea-Level Pressure Anomaly |
| RPN | (Division De) Recherche En Precision Numerique |
| UIPPA | See IUPAP |
| GRO | Global And Remote Observations Section |
| FAME | Florida Area Mesoscale Experiment |
| PRCM | Paleoclimate Reconstructions Of Climate Modeling Observatory |
| UCAR | University Corporation For Atmospheric Research |
| APEN | Air Pollution Emissions Notice |
| RAOBS | Radiosonde Observations |
| EOL | Earth Observing Laboratory (formerly ATD) |