Preconditioning of winter mixed layer in the formation of North Pacific eastern subtropical mode water
Preconditioning of winter mixed layer in the formation of North Pacific eastern subtropical mode water
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DOI：
10.1029/2004gl020677
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发表时间：
2004-09
影响因子：
5.2
通讯作者：
T. Toyoda;T. Awaji;Y. Ishikawa;Tomohiro Nakamura
中科院分区：
文献类型：
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作者：
T. Toyoda;T. Awaji;Y. Ishikawa;Tomohiro Nakamura
利用一个涡动允许的海洋环流模式研究了北太平洋冬季混合层在东副热带模态水（ESTMW）形成中的预处理作用。结果表明，在北Ekman输送的咸水和弱的夏季热通量，由于在ESTMW形成区域的层状云的存在下，辐合都是中央的显着的混合层加深，随后演变成ESTMW密度在主温跃层的开始。这两个因素源于东北太平洋海盆地区固有的海气相互作用。这里所描述的方法具有显着的潜力，确定水团分布，并可能导致在亚热带北太平洋的斯维尔德鲁普的东回旋的解释。
The preconditioning of winter mixed layer in the formation of the eastern subtropical mode water (ESTMW) in the North Pacific Ocean is investigated using an eddy‐permitting ocean general circulation model. The result shows that convergence in the northward Ekman transport of saltier water and weak summertime heat fluxes due to the presence of stratus cloud in the ESTMW formation region are both central to the initiation of significant mixed layer deepening that subsequently evolves into the ESTMW pycnostad in the main thermocline. These two factors originate from air‐sea interactions inherent in the region of Northeast Pacific Basin. The approach described here has significant potential for determining the water‐mass distribution and may lead to an explanation of the Sverdrup's Eastern Gyral in the subtropical North Pacific.