An investigation of the South China Sea throughflow and its impact on upper layer heat content of the South China Sea using LICOM

WANG Wei-wen; YU Yong-qiang; LI Chao; ZHOU Wen; LIU Qin-yan; WANG Dong-xiao

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WANG Wei-wen, YU Yong-qiang, LI Chao, ZHOU Wen, LIU Qin-yan, WANG Dong-xiao. An investigation of the South China Sea throughflow and its impact on upper layer heat content of the South China Sea using LICOM[J]. Haiyang Xuebao, 2010, 32(2): 1-11.

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An investigation of the South China Sea throughflow and its impact on upper layer heat content of the South China Sea using LICOM

1.
Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;Graduate School, Chinese Academy of Sciences, Beijing 100049,China
2.
State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
3.
Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
4.
Guy Carpenter Asia-Pacific Climate Impact Centre, School of Energy and Environment, City University of Hong Kong, Hong Kong, China

Received Date: 2009-12-11
Rev Recd Date: 2010-04-20

Abstract

Abstract

The simulation of an eddy-permitting global oceanic general circulation model (OGCM) on the South China Sea throughflow (SCSTF) and upper layer heat content of the South China Sea (SCS) is evaluated by using island rule, Simple Ocean Data Assimilation (SODA) and Expendable Bathythermograph (XBT) data. The impact of the SCSTF on upper layer heat content of the SCS is also investigated. Analysis of vertical structure of North Equatorial Current (NEC) bifurcation, seasonal variability of the SCS circulation pattern and interannual variability of Luzon Strait transport (LST) indicate that LICOM can obtain a reasonable modeling result of the SCSTF and circulation in the Indo-Pacific region. Annual mean and seasonal variability of upper layer heat content of the SCS in the model are consistent with those calculated from SODA and XBT, particularly in the inner area of the SCS. In addition, correlation analysis show that there is significant negative correlation between the LST and the SCS upper layer heat content, which further confirms the observational truth that the SCSTF acts as a cold advection in adjusting the upper layer heat content of the SCS.
- South China Sea throughflow (SCSTF),
- eddy-permitting OGCM,
- heat content,
- volume transport

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References(42)

References

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