A Research on Air-Sea Interface Heat Exchange under the Typhoon over the South China Sea
南海台风状况下海气界面热量交换研究

On the basis of data collected by the South China Sea Branch Marex buoy, science research of the South China ocean and obversation station on Xisha, we computed the value of air-sea heat exchange over the South China sea. The research results show that in the circumfluence of the ty phoon, the air-sea heat exchange is very strong in summer and autumn. The main contribution to the heat is from latent heat fluxes (Qv). In summer, there is negative sensible heat fluxes (Qk) near the ocean of (20.49°N, 114.4°E), and the net long wave radiation appears to be very weak. But in autumn and winter, in the same area, the sensible heat fluxes (Q k ) is added so much that its value becomes posi tive. At the same time, the net long-wave radiation (Qc) becomes stronger in the two seasons than that in summer. Analysing the data from the SST of Xisha, we can find that in the eight El Niino events of 1961 to 1989, there are four El Nino events during which SST of Xisha became warm earlier than that of the equatorial Pacific and the other four El Nino events during which the SST of the Xisha became warm later than SST of the equatorial Pacific. There was only one event during which the SST in Xisha became warm in December. When El Nino occurred, the sea surface temperature of the South China Sea became warmer. However, the air-sea heat exchange became weaker.