A119-0002
Rapid Intensification of Super typhoon Hagibis (2019)

Friday, 11 December 2020
Poster
I-I Lin1, Robert F Rogers2, Hsiao-Ching Huang1, Yi-Chun Liao1, Jin-Yi Yu3, Christina M Patricola4,5, Jun Zhang2,6, Derrick Herndon7, Yating Chang1, Iam-Fei Pun8 and Chun-Chi Lien1, (1)National Taiwan University, Department of Atmospheric Sciences, Taipei, Taiwan, (2)NOAA/AOML/Hurricane Research Division, Miami, FL, United States, (3)Univ California Irvine, Department of Earth System Science, Irvine, CA, United States, (4)Iowa State University, Geological & Atmospheric Sciences, Ames, IA, United States, (5)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (6)University of Miami, Miami, FL, United States, (7)Univ Wisconsin, Madison, WI, United States, (8)National Central University, Graduate Institute of Hydrological and Oceanic Sciences, Taoyuan, Taiwan
Abstract:
Category-5 Super typhoon Hagibis is one of the highest impact typhoons in recent years. In October 2019, Japan’s densely-populated Kanto region (including the capital Tokyo and surrounding area) were hit by Hagibis. Though having already weakened to a moderate category-2 typhoon at landfall, torrential rain and wind from Hagabis still caused significant loss of life and widespread damage. While heavy rainfall was the main cause of damage at landfall, one of the most striking characteristics of Hagibis was its rapid intensification (RI, Kaplan and DeMaria 2003) over the ocean. In 24 h, Hagibis intensified from Tropical Storm (TS) to Category-5 (i.e. 55 kt to 140 kt) intensity. This ‘explosive’ intensification of 85 kt in 24 h is 283% of the RI threshold of 30 kt in 24 h, making Hagabis one of the most rapidly-intensifying typhoons on record. This work aims to study Hagibis’s RI by examining the structure of Hagabis and its surrounding environment.
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