[A-AS02] Extreme Events: Observations and Modeling

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

★Invited Papers

*Woosub Roh¹, Masaki Satoh¹ (1.AORI, the university of Tokyo)

Keywords:NICAM , Tropical cyclone , ULTIMATE, Joint simulator

A tropical cyclone is one of the extreme events to make heavy rainfall and strong winds. The typhoon Faxai generated in 1^st Sep. 2019 and launched the Kanto area on 8^th 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.