| Water Mass | Temperature (˚C) | Salinity (psu) |
| DW | 2.5 - 5 | 34 - 35 |
| PTW | 10 - 15 | 34 - 35 |
| MSW | 15 - 20 | >34.5 |
| STW | 20 - 27 | 34 - 35 |
| OSW | 25 - 29 | 33 - 34 |
| NCSW | 23 - 27 | 31 - 33 |
| SCSW | 29 - 31 | 27 - 33 |