Growing threat of intense typhoons to East Asia

A threat of intense typhoons has grown on East Asia for recent decades. Integrated analyses of five available TC records for the period 1977–2010 revealed that the growing threat of typhoons primarily came from the shifts in spatial positions of maximum intensity of typhoons to near coastal seas. This explains the robust increase of the landfall intensity for northeast Asia including east China, Korea, and Japan. Otherwise, for Vietnam, south China, and Taiwan, there are no definite tendencies in landfall intensity since the landfall intensity was apparently reduced by the local increase in TC genesis frequency over northern part of the South China Sea. All of these changes were linked with the strengthening of the Pacific Walker circulation.