| Abbreviation | Definition |
|---|---|
| POES | Polar- Orbiting Environmental Satellite |
| POGO | Partnership for Observation of the Global Oceans |
| POL | Proudman Oceanographic Laboratory |
| POLEX | Polar Experiment |
| POLYGON | Oceanographic Experiment in the North-east Atlantic |
| POM | Particulate Organic Matter |
| POMS | Polar Operational Meteorological Satellite |
| PON | Particulate Organic Nitrogen |
| POP | Parallel Ocean Program |
| PORTS | Physical Oceanographic Real Time System |
| POS | Polar Orbiting Satellite |
| POSEIDON | French component of TOPEX POSEIDON |
| POSH | Probability Of Severe Hail |
| POST | Pacific Ocean Salmon Tracking |
| POT | Program for Operational Trajectories |
| POTAD | Program for Operational Transport and Dispersion |
| POWER | PROFS (Program for Regional Observing and Forecasting Services) Operational Weather Education and Research |
| POWER | PROFS Operational Weather Education and Research |
| POWS | PROFS (Program for Regional Observing and Forecasting Services) Operational Work Station |
| POWS | PROFS Operational Work Station |