Abstract
The object of this study is to numericall investigate atmospheric and oceanic environments mainly governing the intensity of a typhoon and its storm surge. An individual effect of sea surface temperature (SST), stratospheric and tropospheric air temperature (SAT, TAT), and relative humidity (RH) to intensity of typhoons and storm surges are investigated, via making use of pusedo global warming methodology employing 26 Global Climate Model results of CMIP5's RCP 8.5 scenario. As a result, the change in both SAT and TAT can cause to decrease a typhoon and its storm surge intensity. One of the reasons is that latent heat flux above ocean can be dampeded by high air temperature in lower troposherer. Furthremore, the expected small increments of RH have relatively a little influence on the intensity of typhoon, compared to those of SST, SAT and TAT. As a conclusion, it can be said that future environments composed of both low TAT and high SST have a positive inpact on the high intensity of a typhoon and storm surge.
