Research Article
Analysis of Surface Sound Duct in the Northern Shelf of the South China Sea
Table 1
Occurrence statistics of SSD formation and freshening process in the 8-year open cruise.
| | | A1–A9 | B1–B9 | C1–C9 |
| | Normal salinity/low salinity | 16/27 | 11/22 | 16/16 | | Duct formation in low salinity (Case I) | 27 | 22 | 15 | | No duct formation in low salinity (Case II) | 0 | 0 | 1 | | Duct formation in normal salinity (Case III) | 15 | 11 | 14 | | No duct formation in low salinity (Case IV) | 1 | 0 | 2 |
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