Impact of Tidal Mixing on Water Mass Transformation and Circulation in the South China Sea
Impact of Tidal Mixing on Water Mass Transformation and Circulation in the South China Sea
复制标题
潮汐混合对南海水体转化和环流的影响
DOI：
10.1175/jpo-d-16-0171.1
复制
发表时间：
2017-02
影响因子：
3.5
通讯作者：
Peng Shiqiu
中科院分区：
文献类型：
--
作者：
Wang Xiaowei;Liu Zhiyu;Peng Shiqiu
本文利用一个高分辨率的区域海洋模式，通过一系列不同的潮致扩散系数配置的数值试验，研究了潮混合对南海水团转化和环流的影响。结果表明，吕宋海峡和南海的潮混合对吕宋海峡的输运和南海中深层环流有重要影响。密度场的分析表明，在LS和南海的潮汐混合是必不可少的，以维持一致的密度梯度，从而在西太平洋和LS之间，LS和南海盆地之间的持久外向斜压压力梯度，以维持强大的深水输送通过LS。对水团性质的进一步分析表明，南海深部的潮汐混合将加强水平密度梯度，强化盆地尺度气旋性环流，诱发更强烈的海洋环流，从而增强南海的海洋动力。
AbstractUsing a high-resolution regional ocean model, the impact of tidal mixing on water mass transformation and circulation in the South China Sea (SCS) is investigated through a set of numerical experiments with different configurations of tide-induced diapycnal diffusivity. The results show that including tidal mixing in both the Luzon Strait (LS) and SCS has significant impact on the LS transport and the intermediate–deep layer circulation in the SCS Basin. Analysis of the density field indicates that tidal mixing in both the LS and SCS are essential for sustaining a consistent density gradient and thus a persistent outward-directed baroclinic pressure gradient both between the western Pacific and LS and between the LS and SCS Basin, so as to maintain the strong deep-water transport through the LS. Further analysis of water mass properties suggests that tidal mixing in the deep SCS would strengthen the horizontal density gradient, intensify the basin-scale cyclonic circulation, induce more vigorous o...
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影响因子：
2.3
作者：
Barry B. Ma;R. Lien;D. Ko
通讯作者：
Barry B. Ma;R. Lien;D. Ko
影响因子：
1.4
作者：
Qu;Tangdong
通讯作者：
Qu;Tangdong
影响因子：
2.3
作者：
A. Koch‐Larrouy;G. Madec;B. Blanke;R. Molcard
通讯作者：
A. Koch‐Larrouy;G. Madec;B. Blanke;R. Molcard
影响因子：
64.8
作者：
J. MacKinnon
通讯作者：
J. MacKinnon
影响因子：
5.2
作者：
L. S. Laurent;H. Simmons;S. Jayne
通讯作者：
L. S. Laurent;H. Simmons;S. Jayne