Statistical Characteristics of the Response of Sea Surface Temperatures to Westward Typhoons in the South China Sea

The strong interaction between a typhoon and ocean air is one of the most important forms of typhoon and sea air interaction. In this paper, the daily mean sea surface temperature (SST) data of Advanced Microwave Scanning Radiometer for Earth Observation System (EOS) (AMSR-E) are used to analyze the reduction in SST caused by 30 westward typhoons from 1998 to 2018. The findings reveal that 20 typhoons exerted obvious SST cooling areas. Moreover, 97.5% of the cooling locations appeared near and on the right side of the path, while only one appeared on the left side of the path. The decrease in SST generally lasted 6-7 days. Over time, the cooling center continued to diffuse, and the SST gradually rose. The slope of the recovery curve was concentrated between 0.1 and 0.5.

Automated summary

The study found that 20 westward typhoons caused significant reductions in sea surface temperature, with cooling being more pronounced on the right side of the typhoon path. Overall, the cooling effect lasted for about 6-7 days.