日本地球惑星科学連合2021年大会

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[E] 口頭発表

セッション記号 A (大気水圏科学) » A-AS 大気科学・気象学・大気環境

[A-AS02] Extreme Events: Observations and Modeling

2021年6月6日(日) 10:45 〜 12:15 Ch.07 (Zoom会場07)

コンビーナ:Sridhara Nayak(Disaster Prevention Research Institute, Kyoto University)、竹見 哲也(京都大学防災研究所)、Satoshi Iizuka(National Research Institute for Earth Science and Disaster Resilience)、座長:竹見 哲也(京都大学防災研究所)、Sridhara Nayak(Disaster Prevention Research Institute, Kyoto University)、Satoshi Iizuka(National Research Institute for Earth Science and Disaster Resilience)

10:50 〜 11:10

[AAS02-08] Observations and simulations of Typhoon Faxai over the Kanto area

★Invited Papers

*Roh Woosub1、佐藤 正樹1 (1.東京大学海洋研究所)

キーワード:NICAM、台風、ULTIMATE、Joint simulator

A tropical cyclone is one of the extreme events to make heavy rainfall and strong winds. The typhoon Faxai generated in 1st Sep. 2019 and launched the Kanto area on 8th Sep. 2019. There are intensive observation stations over the Kanto area, whose domain size is 100 km×100 km. For example, the High Spectral Resolution Lidar (HSRL, 355 nm), Doppler lidar, and the Cloud Profiling Radar (CPR, 94 GHz) are located in Tokyo. Several polarimetric radars are available like C-band radar in two airports, X-band phased array radar in Saitama University, Ka-band radar in Tsukuba. The WInd profiler Network and Data Acquisition System (WINDAS) data is available in Kawaguchiko, Mito, and Kumagaya. The ULTIMATE (ULTra sIte for Measuring Atmosphere of Tokyo metropolitan Environment) is proposed to verify and improve high-resolution numerical simulations based on these observation data. The typhoon Faxai is one of the targets in the ULTIMATE project.

In this study, we analyzed these intensive observation data about the typhoon Faxai. We simulated typhoon Faxai using the Nonhydrostatic ICosahedral Atmospheric Model (NICAM, Satoh et al. 2014). We evaluate the performances of NICAM using a Joint simulator (Hashino et al. 2013) and discuss how to improve the microphysics in NICAM using the observation data.