Historical deadly typhoons in the Philippines

, in China and Japan, are used. The physical mechanisms responsible for their development are complex and not fully understood, but it is known that they require high sea-surface temperatures (SST), a moderate Coriolis force, a pre-existent synoptic perturbation (normally a monsoon trough or easterly wave) and low wind shear (Fink and Speth, 1998; Galvin, 2008). The dependence on high sea tem-perature has opened the debate on a pos-sible increase in the frequency of tropical cyclones in a changing climate. It has been proposed that a rise in SST induced by the anthropogenic global warming has already led to a greater number of intense tropical cyclones in recent decades (Emanuel, 2005; Webster