| XIAO Xianjun,WANG Dongxiao,ZHOU Wen,ZHANG Zuqiang,QIN Yinghao,HE Na,ZENG Lili. 2013. Impacts of a wind stress and a buoyancy flux on the seasonal variation of mixing layer depth in the South China Sea. Acta Oceanologica Sinica, 32(9):30－37 |
| Impacts of a wind stress and a buoyancy flux on the seasonal variation of mixing layer depth in the South China Sea |
| Impacts of a wind stress and a buoyancy flux on the seasonal variation of mixing layer depth in the South China Sea |
| Received:March 21, 2012 Revised:September 24, 2012 |
| DOI：10.1007/s13131-013-0349-6 |
| Key words:wind stress buoyance flux mixed layer South China Sea |
| 中文关键词: wind stress buoyance flux mixed layer South China Sea |
| 基金项目:The National Basic Research Program of China under contract Nos 2011CB403505 and 2011CB403504;the National Natural Science Foundation of China under contract No. 41206007;the City University of Hong Kong Stritegic Research Grants under contract Nos 7002917 and 7002780;the Knowledge Innovation Project for Distinguished Young Scholar of The Chinese Academy of Sciences under contract KZCX2-EWQN203;the foundation for operational development of the National Marine Environment Forecasting Center under contract No. 2013006. |
| Author Name | Affiliation | E-mail | | XIAO Xianjun | National Climate Center, China Meteorological Administration, Beijing 100081, China | xiaoxj@cma.gov.cn | | WANG Dongxiao | State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | ZHOU Wen | Guy Carpenter Asia-Pacific Climate Impact Centre, School of Energy and Environment, City University of Hong Kong, Hong Kong 00852, China | | | ZHANG Zuqiang | National Climate Center, China Meteorological Administration, Beijing 100081, China | | | QIN Yinghao | National Marine Environmental Forecasting Center, Beijing 100081, China | | | HE Na | Beijing Meteorological Station, Beijing 100089, China | | | ZENG Lili | State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | |
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| Abstract: |
| The seasonal variation of mixing layer depth (MLD) in the ocean is determined by a wind stress and a buoyance flux. A South China Sea (SCS) ocean data assimilation system is used to analyze the seasonal cycle of its MLD. It is found that the variability of MLD in the SCS is shallow in summer and deep in winter, as is the case in general. Owing to local atmosphere forcing and ocean dynamics, the seasonal variability shows a regional characteristic in the SCS. In the northern SCS, the MLD is shallow in summer and deep in winter, affected coherently by the wind stress and the buoyance flux. The variation of MLD in the west is close to that in the central SCS, influenced by the advection of strong western boundary currents. The eastern SCS presents an annual cycle, which is deep in summer and shallow in winter, primarily impacted by a heat flux on the air-sea interface. So regional characteristic needs to be cared in the analysis about the MLD of SCS. |
| 中文摘要: |
| The seasonal variation of mixing layer depth (MLD) in the ocean is determined by a wind stress and a buoyance flux. A South China Sea (SCS) ocean data assimilation system is used to analyze the seasonal cycle of its MLD. It is found that the variability of MLD in the SCS is shallow in summer and deep in winter, as is the case in general. Owing to local atmosphere forcing and ocean dynamics, the seasonal variability shows a regional characteristic in the SCS. In the northern SCS, the MLD is shallow in summer and deep in winter, affected coherently by the wind stress and the buoyance flux. The variation of MLD in the west is close to that in the central SCS, influenced by the advection of strong western boundary currents. The eastern SCS presents an annual cycle, which is deep in summer and shallow in winter, primarily impacted by a heat flux on the air-sea interface. So regional characteristic needs to be cared in the analysis about the MLD of SCS. |
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