| Interannual variability of the southern Yellow Sea Cold Water Mass |
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| 作者姓名： | 胡敦欣 王庆业 |
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| 作者单位： | Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China，Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China Graduate School of the Chinese Academy of Sciences，Beijing 100039，China |
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| 基金项目： | ContributionNo.4612fromtheInstituteofOceanology,ChineseAcademyofSciences,Qingdao,China
SupportedbytheNationalBasicResearchProgramofChina(No.G1999043803). |
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| 摘 要： | Temperature data collected in the sections of 34°N, 35°N and 36°N in August from 1975 through 2003 were analyzed using Empirical Orthogonal Function (EOF) to investigate interannual variability of the southern Yellow Sea Cold Water Mass (YSCWM). The first mode (EOF1) reveals variations of basin-wide thermocline depth, which is mainly caused by surface heating. The second mode (EOF2) presents fluctuations of vertical circulation, resulting mainly from interannual variability of cold front intensity. In addition, it is found that the upward extent of upwelling in the cold front is basically determined by wind stress curl and the zonal position of the warm water center in the southern Yellow Sea is correlated with spatial difference of net heat flux.
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| 关 键 词： | 海水温度 调查资料 数据统计 触角间可变性 黄海 |
| 收稿时间： | 19 May 2004 |
| 修稿时间： | 4 June 2004 |
Interannual variability of the southern Yellow Sea Cold Water Mass |
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| Hu?Dunxin,Wang?Qingye.Interannual variability of the southern Yellow Sea Cold Water Mass[J].Chinese Journal of Oceanology and Limnology,2004,22(3):231-236. |
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| Authors: | Hu Dunxin Wang Qingye |
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| Institution: | (1) Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China;(2) Graduate School of the Chinese Academy of Sciences, 100039 Beijing, China |
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| Abstract: | Temperature data collected in the sections of 34°N, 35°N and 36°N in August from 1975 through 2003 were analyzed using Empirical
Orthogonal Function (EOF) to investigate interannual variability of the southern Yellow Sea Cold Water Mass (YSCWM). The first
mode (EOF1) reveals variations of basin-wide thermocline depth, which is mainly caused by surface heating. The second mode
(EOF2) presents fluctuations of vertical circulation, resulting mainly from interannual variability of cold front intensity.
In addition, it is found that the upward extent of upwelling in the cold front is basically determined by wind stress curl
and the zonal position of the warm water center in the southern Yellow Sea is correlated with spatial difference of net heat
flux.
Contribution No.4612 from the Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
Supported by the National Basic Research Program of China (No. G1999043803) |
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| Keywords: | YSCWM EOF interannual variability |
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