[M-IS05] New technologies to monitor thunderstorm and severe weather activities

[MIS05-03] Airborne observation of Super Typhoon Trami in 2018 for understanding the intensity of tropical cyclone in the Philippine Sea

★Invited Papers

*Hisayuki Kubota¹, Kazuhisa Tsuboki², Hiroyuki Yamada³, Yukihiro Takahashi¹, Taro Shinoda², Tadayasu Ohigashi⁴, Munehiko Yamaguchi⁵, Kosuke Ito³, Tetsuo Nakazawa⁵, Norio Nagahama⁶, Kensaku Shimizu⁶, Mitsuteru Sato¹ (1.Hokkaido University, 2.Nagoya University, 3.University of the Ryukyus, 4.National Research Institute for Earth Science and Disaster Resilience, 5.Meteorological Research Institute, 6.Meisei Electronic)

Keywords:Tropical cyclone, Airborne observation, Dropsonde observation

Airborne observation of tropical cyclone (TC) had been conducted until 1987 over the western north Pacific region to measure the TC intensity directly. After that TC intensity was estimated by Dvorak technique using satellite data. Here we conducted dropsonde observation by the aircraft in 2018 under the two projects of T-PARCII (Tropical Cyclone-Pacific Asian Research Campaign for Improvement of Intensity estimations/forecasts) and ULAT (Understanding Lightning and Thunderstorm) of SATREPS (Science and Technology Research Partnership for Sustainable Development) in the Philippines and penetrated the eye of Super Typhoon Trami during Sep. 25 to 28. TC Trami reached its mature stage when we observed on Sep. 25. The structure of sharp eyewall and warm core in the eye were observed. On the other hand, the intensity of TC was weakened when we observed on the following day. We need to capture the signal of intensification and decay of TC by combining multiple observations for understanding the structure for a short term forecast of tropical cyclone intensity.