MỐI QUAN HỆ GIỮA NHIỆT ĐỒ BỀ MẶT NƯỚC BIỂN VÀ CƯỜNG ĐỘ BÃO TIỀM NĂNG CỰC ĐẠI TRÊN KHU VỰC BIỂN ĐÔNG

Tóm tắt

Sea surface temperature (SST) is one of the most important thermal factors affecting tropical cyclones intensity. This paper develops an empirical distribution function to study relationship between SST and intensity of tropical cyclones over the Viet Nam East Sea based on a 35-year dataset (1982-2016). The results show that the maximum intensity of tropical cyclones rapidly increase below the 25 0 C-group, then slowly increases to the highest value in the 30 0 C-group and finally, significantly reduces in the 31 0 C-groups. The natural logarithm function (ln) is constructed to represent the statistical relationship between the maximum potential intensity tropical cyclone and the surface water temperature with a temperature limit of less than 30.5°C. This results could provide a quick identification of the upper limit of tropical cyclone potential intensity when having information about SST in the Viet Nam East Sea.