| Abbreviation | Definition |
|---|---|
| SCAR | Scientific Committee for Antarctic Research |
| SCAR | Scientific Committee on Antarctic Research |
| SCATT | SCATTerometer |
| SCBA | Self Contained Breathing Apparatus |
| SCBWMI | Santa Clara Basin Watershed Management Initiative |
| SCCS | Scarborough Centre for Coastal Studies |
| SCEP | Special Committee on Antarctic Research |
| SCIBP | Special Committee on the International Biological Program |
| SCICEX | Submarine Arctic SCIence Cruise Exercise |
| SCIMPI | Simple Cabled Instrument for Measuring Parameters In-Situ |
| SCIT | Storm Cell Identification and Tracking |
| SCM | Single Column Model |
| SCN | Seanet Communications Node |
| SCOPE | San Clemente Ocean Probing Experiment |
| SCOPE | Scientific Committee on Problems of the Environment |
| SCOR | Scientific Committee on Oceanic Research |
| SCOSTEP | Scientific Committee on Solar- Terrestrial Physics |
| SCOSTEP | Scientific Committee On Solar-TErrestrial Physics |
| SCPP | Seasonal-to-Interannual Climate Prediction Program |
| SCS | South China Sea |