Intrusion of the North Pacific waters into the South China Sea
Intrusion of the North Pacific waters into the South China Sea
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DOI：
10.1029/1999jc900323
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发表时间：
2000-03-15
影响因子：
3.6
通讯作者：
Yamagata, T
中科院分区：
文献类型：
--
作者：
Qu, T;Mitsudera, H;Yamagata, T
通过分析南海历史水文资料，研究了南海水团分布。尽管相当大的修改的特点，作为混合的结果，沃茨的盐度最大和最小的北太平洋原产地被跟踪的密度表面上的25.0和26.73西格玛（θ），分别。在盐度最大层，财产分布表明，全年通过吕宋海峡进入南海的入侵。入侵的季节变化包含一个明显的半年信号，在冬季和夏季比春季和秋季更强。从春季到秋季，来自太平洋的入侵水被狭窄地限制在中国南部的大陆坡;只有在冬季，当东北季风充分发展时，它才能在南海南部扩散。在盐度最低层，水只在春季进入南海，此时盐度最高层的入侵最弱。结合使用“岛屿规则”和气候学资料表明，吕宋海峡的平均输送量为4 Sv（1 Sv = 10（6）m（3）s（-1））。
Water mass distribution was studied by analyzing historical hydrographic data in the South China Sea. Despite considerable modification of characteristics as a result of mixing, waters of both salinity maximum and minimum of the North Pacific origin were traced on the density surfaces around 25.0 and 26.73 sigma(theta), respectively. In the salinity maximum layer, property distribution suggests an intrusion into the South China Sea all year-round through the Luzon Strait. The seasonal variation of the intrusion contains a pronounced semiannual signal, with greater strength in winter and summer than in spring and fall. From spring to fall, the intrusion water from the Pacific is narrowly confined in the continental slope south of China; only in winter, when the northeast monsoon becomes fully developed, can it spread in the southern South China Sea. In the salinity minimum layer, water enters the South China Sea only in spring, when the intrusion in the salinity maximum layer is weakest. A combined use of the "island rule" with climatological data suggests a mean Luzon Strait transport of the order 4 Sv (1 Sv = 10(6) m(3) s(-1)).