Impact of Changjiang River Discharge on Sea Surface Temperature in the East China Sea
Impact of Changjiang River Discharge on Sea Surface Temperature in the East China Sea
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DOI：
10.1175/jpo-d-15-0167.1
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发表时间：
2016-05
影响因子：
3.5
通讯作者：
Shin’ichiro Kako;Tomofumi Nakagawa;Katsumi Takayama;N. Hirose;A. Isobe
中科院分区：
文献类型：
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作者：
Shin’ichiro Kako;Tomofumi Nakagawa;Katsumi Takayama;N. Hirose;A. Isobe
摘要本研究基于有无长江入海流量的海洋环流模式，探讨了长江入海流量对东海上层海洋层结的影响。在这项研究中的一个新的发现是，CRD有助于显着减少夏季SST在ECS。两个模式运行之间的比较表明，垂直一维过程在ECS的SST变暖的贡献相当大，而水平平流在夏季SST降低中起着重要的作用。粒子跟踪实验结果表明，前一个冬季中国沿海沿着形成的冷水团对次年夏季SST的降低有贡献。夏季风结束后，低盐度的CRD向中国沿岸平流输送，形成一个浅层混合层，抑制了混合层与温跃层之间的热交换。在冬季，ML的热量损失通过.
AbstractThis study investigated how the Changjiang River discharge (CRD) emptying into the East China Sea (ECS) affects the upper-ocean stratification [hence, sea surface temperature (SST) changes], based on ocean general circulation modeling with and without CRD. A new finding in this study is that CRD contributes significantly to a reduction in summer SST in the ECS. Comparison between the two model runs revealed that vertical one-dimensional processes contribute considerably to SST warming in the ECS, while horizontal advection plays an important role in lowering SST in summer. The results of a particle-tracking experiment suggested that the cold water mass formed along the Chinese coast during the previous winter contributes to the SST reduction in the following summer. From the end of the summer monsoon season, the less saline CRD advected toward the Chinese coast generates a shallow mixed layer (ML), which inhibits heat exchange between the ML and thermocline. In winter, heat loss of the ML through ...