| Seasonality and causes of the Yellow Sea Warm Current |
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| 作者姓名： | 崔茂常 胡敦欣 莫军 |
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| 作者单位： | InstituteofOceanology,ChineseAcademyofSciences,Qingdao26607l,China |
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| 基金项目： | Supported by the Nationtal Basic Research Program(No.G1999043803)
Hi-Telch Research and Development Program of China(No.2001AA633060)
the grant of Institute of Oceanology, Chinese Academy of Sciences(No.L370221117) |
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| 摘 要： | To study the seasonality and causes of the Yellow Sea Warm Current (YSWC) in detail, rotated empirical orthogonal function (REOF) and extended associate pattern analysis are adopted with daily sea surface salinity (SSS), sea surface temperature (SST) and sea surface height (SSH) datasets covering 1126 days from American Navy Experimental Real-Time East Asian Seas Ocean Nowcast System in the present paper. Results show that in the Yellow and East China Seas, the YSWC is a mean barotropic flow as compensation of winter-monsoon-driven surface currents, which has been directly observed. When East Asia winter monsoon weakens, so do the meridional pressure gradient of the surface seawater and the YSWC, while the transversal pressure gradient changes rather slowly that results in the YSWC left turning. In addition, there is southward mean flow compensation of summer-monsoon-driven surface currents, which actually was also directly ob-served.
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| 关 键 词： | 暖流 黄海 海洋模式分析 海面盐份 |
| 收稿时间： | 24 April 2004 |
| 修稿时间： | 24 May 2004 |
Seasonality and causes of the Yellow Sea Warm Current |
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| Cui?Maochang,Hu?Dunxin,Mo?Jun.Seasonality and causes of the Yellow Sea Warm Current[J].Chinese Journal of Oceanology and Limnology,2004,22(3):265-270. |
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| Authors: | Cui Maochang Hu Dunxin Mo Jun |
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| Institution: | (1) Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China |
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| Abstract: | To study the seasonality and causes of the Yellow Sea Warm Current (YSWC) in detail, rotated empirical orthogonal function (REOF) and extended associate pattern analysis are adopted with daily sea surface salinity (SSS), sea surface temperature (SST) and sea surface height (SSH) datasets covering 1126 days from American Navy Experimental Real-Time East Asian Seas Ocean Nowcast System in the present paper. Results show that in the Yellow and East China Seas, the YSWC is a mean barotropic flow as compensation of winter-monsoon-driven surface currents, which has been directly observed. When East Asia winter monsoon weakens, so do the meridional pressure gradient of the surface seawater and the YSWC, while the transversal pressure gradient changes rather slowly that results in the YSWC left turning. In addition, there is southward mean flow compensation of summer-monsoon-driven surface currents, which actually was also directly observed. |
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| Keywords: | seasonality YSWC REOF extended associate pattern analysis |
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