| Abbreviation | Definition |
|---|---|
| SQM | Surface Quality Monitor |
| SQUID | Submersible Quiet Underwater Intelligent Driver |
| SR | Scanning Radiometer |
| SR | Slime Reduction |
| SR | Solar Radiation |
| SR | Sound Recording |
| SR | Sunken Ruins |
| SRA | Scanning Radar Altimeter |
| SRB | Surface Radiation Budget |
| SRBCP | Satellite Radiation Budget Climatology Project |
| SREH | Storm- Relative Environmental Helicity |
| SREH | Storm-Relative Environmental Helicity |
| SRP | Soluble Reactive Phosphorus |
| SRRB | Solar Radiation Research Branch |
| SS | Six Shoe |
| SSAB | Source Selection Advisory Board |
| SSBUV | Shuttle SBUV |
| SSBUV | Shuttle Solar Backscatter Ultra-Violet |
| SSD | Scientific Support Division |
| SSDP | Salton Sea Database Program |