Freshening of the intermediate water of the South China Sea between the 1960s and the 1980s

Changjian Liu; Dongxiao Wang; Ju Chen; Yan Du; Qiang Xie

doi:10.1007/s00343-012-1280-y

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Freshening of the intermediate water of the South China Sea between the 1960s and the 1980s

Updated：2023-05-16

- Freshening of the intermediate water of the South China Sea between the 1960s and the 1980s
- Journal of Oceanology and Limnology Vol. 30, Issue 6, Pages: 1010-1015(2012)
- Affiliations：
  
  1. State Key Laboratory of Tropical Oceanography South China Sea Institute of Oceanology Chinese Academy of Sciences
  2. South China Sea Marine Engineering Surveying Center State Oceanic Administration
  3. Graduate University of Chinese Academy of Sciences
  4. Sanya Institute of Deep-sea Science and Engineering Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/s00343-012-1280-y
  CLC：
- Online First：17 November 2012，
  
  Published：2012
- Accepted：
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Liu, C., Wang, D., Chen, J. et al. Freshening of the intermediate water of the South China Sea between the 1960s and the 1980s., Chin. J. Ocean. Limnol. 30, 1010–1015 (2012). https://doi.org/10.1007/s00343-012-1280-y
DOI：

Liu, C., Wang, D., Chen, J. et al. Freshening of the intermediate water of the South China Sea between the 1960s and the 1980s., Chin. J. Ocean. Limnol. 30, 1010–1015 (2012). https://doi.org/10.1007/s00343-012-1280-y DOI：

摘要

Abstract

Variation in intermediate water salinity in the South China Sea (SCS) between the 1960s and 1980s was studied using historical hydrographic data. The results demonstrate that the water was significantly fresher in the 1980s than in the 1960s

indicating that vertical mixing at intermediate water depth was reduced in the 1980s. This was partially because of the change of the SCS meridional overturning circulation (MOC) connecting local intermediate water with deep water. Data assimilation showed a 0.5 Sv (1 Sv=106 m3 /s) reduction in the strength of the MOC

which is about one third of the mean SCS MOC. Because the SCS MOC is linked to the Pacific Ocean

such an interdecadal variation in the intermediate water SCS may reflect anthropogenic climate change in the world ocean.

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references

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