Statistical study on the influence of typhoon with different path on the temperature of coastal waters of China
Based on the best typhoon track data provided by the China Meteorological Administration,according to K-means clustering analysis,typhoons entering the coastal waters of China from the West Pacific Warm Pool from 2002 to 2021 are divided into three types,and the three types are named as westward path typhoon,northwestward path typhoon and turning path typhoon according to typhoon path characteristics.In addition,the optimal daily product of sea surface temperature interpolation provided by remote sensing systems(REMSS)and simulation results of coupled ocean atmosphere wave sediment transport modeling system(COAWST)are used to study the changes of upper ocean temperature caused by these three typhoons with different path.The results show that the influence characteristics of three different typhoon paths on sea surface temperature(SST)are mainly reflected in the cooling amplitude and recover time:the turning typhoon exhibits the largest cooling amplitude and the longest-lasting effect on sea surface temperature,followed by the northwestward typhoon,the westward typhoon has the smallest cooling amplitude and the shortest duration of impact.The difference of three different typhoon paths on the mixed layer thickness(MLT)and thermocline thickness(TT)are mainly reflected in the rangeability of thickness and recovery time:for the rangeability of MLT and TT,the turning typhoon is the largest,followed by the northwestward typhoon,and the westward typhoon is the least.For the recovery speed of MLT and TT,the northwestward typhoon is obviously faster than the westward typhoon and the turning typhoon.
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