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| 台湾暖流水和长江冲淡水在32°N断面和PN断面上的分布及其变化 |
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白 虹, 王 凡
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中国科学院海洋研究所
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| Distributions and Variations of the Taiwan Warm Current Water and Changjiang Diluted Water Along 32°N and PN Sections |
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BAI Hong, WANG Fan
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Institute of Oceanology Chiness Academy of Seiences
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| Based on six=cruise data gathered along 32°N and PN sections fron 1987 to 1998,we examined variations of water mass distribution and associated circulation in the westem part of the East China Sea with the emphasis on the behaviors of the Taiwan Warm Current Water and Changjiang(Yangtze)Diluted Water.It is found that the Diluted Water is Limited in the west of 122.5°E～123°E along 32°N and PN sections in autumn,winter and spring,but extends to 122.5°E～126°E in summer,especially in summer of 1998. Along the PN section, the Taiwan Warm Current (TWC)Water is found all year round,especially in deeper layer.It has significant seasonal and interannual variations which is the strongest in winter and relatively weaker in winter and relatively weaker in spring,summer and fall.The deep water carried by the TWC along 123°E～123.5°E tends to reach the north of 28°N even 30°N not only in warm seasons but also in cold seasons in even greater strength.It is noteworthy that the TWCwater was also strong in the flood summer of 1998.In general,the TWC water acts weakly in the north of 32°Nsection.However in spring of 1994.the body of the TWC water in salinity at 33.5 was found along 32°N section.It seems the extreme of the TWC water's northward intrusion with the depth in summer,but does not in winter. |
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