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首页> 外文期刊>Chinese science bulletin >Spring upper warm water of the Nansha islands sea area in the South China Sea and the numerical study on its dynamic mechanism
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Spring upper warm water of the Nansha islands sea area in the South China Sea and the numerical study on its dynamic mechanism

机译：南海南沙群岛海域春季上层暖水及其动力机制的数值研究

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摘要

According to the satellite remote sensing monthly mean sea surface temperature data and in situ observational Conductivity-Temperature-Depth data, it is shown that in spring, at the upper layer to the west of Palawan Island, there exists a relatively weak warm water tongue which is distinctly different from the cold water southeast of the Balabae Strait. The relative temperature difference between the warm and cold water reduces gradually from winter to spring. P-vector method is employed to calculate the current field based on the in situ observational data, which shows that the warm water is within an anti-cyclonic meander. Based on the remote sensing wind stress during the observational period, a coupled single-layer/two-layer model is employed to study the dynamic mechanism of this anticyclonic meander current field corresponding to the warm water tongue. According to the numerical results, it is suggested that this anticyclonic meander could be mainly the residue of the winter anticyclonic eddy, rather than formed by the inflow water from the Sulu Sea via the Balabae Strait.
机译：根据卫星遥感月平均海表温度数据和实地观测的电导率-温度-深度数据，表明在春季，巴拉望岛以西的上层存在相对较弱的温水舌，与巴拉白海峡东南部的冷水明显不同。从冬季到春季，冷热水之间的相对温差逐渐减小。基于原位观测数据，采用P矢量法计算了当前场，表明温水在反气旋弯道内。基于观测期内的遥感风应力，采用单层/两层耦合模型研究了该逆旋流曲流场与暖水舌对应的动力学机制。根据数值结果表明，这种反气旋弯道可能主要是冬季反气旋涡的残留物，而不是由苏禄海经巴拉白海峡流入的水形成的。

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