Formation and decay of the spring warm pool in the South China Sea
Formation and decay of the spring warm pool in the South China Sea
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DOI：
10.1029/2005gl025097
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发表时间：
2006-01
影响因子：
5.2
通讯作者：
Weiqiang Wang;Chunzai Wang
中科院分区：
文献类型：
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作者：
Weiqiang Wang;Chunzai Wang
南海作为东南亚季风系统的一部分，在春季具有东北季风向西南季风转换的特征。相应地，在南海中部形成了一个春季暖池（SWP），其混合层温度高于29°C，并在5月达到峰值，然后在6月衰减。热收支的计算表明，表面热通量和海洋动力学在SWP的形成和衰减中有不同的作用。地面热通量被发现在5月的SWP的形成起主导作用。西南季风的爆发对应于云量和降雨量的增加以及南海的强风，从而降低了6月份的地表热通量。此外，西南季风的爆发也改变了海洋环流格局，使冷水从西北向东南平流，并将冷水泵入上层混合层。这些冷却效应克服了地面热通量的变暖效应，导致了6月SWP的衰减。
As part of the southeast Asian monsoon system, the South China Sea (SCS) is characterized by monsoon wind transition from northeasterly to southwesterly in the boreal spring. Correspondingly, a spring warm pool (SWP) with mixed layer temperature warmer than 29°C is formed and peaked in May over the central SCS and then decays in June. Calculations of the heat budget showed that the surface heat flux and ocean dynamics have different roles in the formation and decay of the SWP. The surface heat flux is found to play a dominant role for the formation of the SWP in May. The onset of the southwest monsoon corresponds to an increase in cloudiness and rainfall and a strong wind speed in the SCS that decrease the surface heat flux in June. Moreover, the onset of the southwest monsoon also changes oceanic circulation pattern that advects cold water from the northwest to the southeast and pumps cold water into the upper mixed layer. These cooling effects overcome the warming effect of the surface heat flux, resulting in the decay of the SWP in June.