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根据国家海洋局南海分局的Marex(马瑞克斯)数据浮标观测资料、南海断面线调查资料和西沙海洋站资料,计算了南海海气界面热量交换值。研究结果表明:不论是夏季还是秋季,在台风环流内海气界面热量交换均非常强烈,主要贡献来自潜热通量(Qv),位于(20.49°N, 114.14°E)附近海域。夏季台风环流内显热通量(Qk)出现负值,海面有效反射辐射(Qe)出现减弱现象;秋冬季节台风环流内Qk量值增加显著均为正值,Qe有加强的现象。分析实测资料发现: 1961~ 1989年 8次 E1 Nino事件过程中,西沙海洋站水温比赤道太平洋水温提早出现增暖现象的有4次,水温推迟出现增暖现象的也是4次。西沙海洋站水温增暖出现在12月的仅有 1次。 El Ninio事件发生后,南海水温异常增暖,但是海气界面热量交换反而减弱。
According to the Marex data buoy observation data of the State Oceanic Administration Nanhai Branch, the survey data of the South China Sea cross-section line and the data of the Xisha Ocean Station, the heat exchange value of the South China Sea air interface is calculated. The results show that the heat exchange in the inner-ocean-air interface of the typhoon circulation is very strong, both in summer and autumn. The major contribution comes from the latent heat flux (Qv), located in the sea near (20.49 ° N, 114.14 ° E). During the summer typhoon circulation, the apparent heat flux (Qk) was negative, and the effective reflected radiation (Qe) on the sea surface was weakened. In the autumn and winter typhoon circulation, the increase of Qk was significantly positive and Qe was enhanced. According to the measured data, it is found that during the eight E1 Nino events from 1961 to 1989, the water temperature of Xisha Ocean Station appeared earlier than that of the equatorial Pacific to increase 4 times, and the phenomenon of water temperature postponed warming was also 4 times. Xisha Ocean Station water temperature warming appeared in December only 1 time. After the El Ninio event, the water temperature in the South China Sea anomalously increased, but the heat exchange at the air-sea interface was rather weakened.