A Study on the Correlation Analysis of Ocean Coupling Potential Intensity for Tropical Cyclones

The most commonly used MPI (Maximum Potential Intensity) for predicting the typhoon potential intensity using the difference between SST and upper atmosphere temperature. However, in recent studies, it was found that the typhoon intensity is more influenced by the vertical mixing temperature than SST. In order to include information from the subsurface ocean temperature profile, Ocean Coupling Potential Intensity (OC_PI) index was developed. In this study, we investigate the climate variability of OC_PI as a TC maximum intensity predictor in the western North Pacific for 32 years (1984-2014) and analyze the tendency of typhoon intensity change according to global warming.