포인트와이즈 분석에 따른 가을철 태풍의 위험요소 진단 = Assessment of the Risk Factors from the Autumnal Tropical Storms Using Pointwise Analysis

다국어 초록 (Multilingual Abstract)

Despite concerns about the damage from autumnal tropical storms, risk for these storms has not been quantitatively defined and thus the geographical distribution of risk is not available yet. This study employs a localized index of tropical storm activity, and tries to examine the geographical risk pattern of the autumnal tropical storms that local residents observe in the East Asian region. The regional risks are effectively captured by looking into the difference of the localized storm activity indexes between August and September. Results show that the autumnal risks become larger in most areas of East Asia, and the seasonal response appears highest around the Ryukyu Islands. In particular, Japan and Vietnam experience increasing tropical storm risks due to the higher number of stronger and slower cases. On the other hand, most coastal regions of China, Taiwan, the Ryukyu Islands, the Korean Peninsula, and the Philippines suffer from larger risks as the intensified storms offset the reduced storm risks from the lower number of cases. The value of this study lies in the findings that provide background information which can help local residents make more reasonable and efficient decisions on mitigating the damage from autumnal tropical storms.