Japan Geoscience Union Meeting 2019

Presentation information

[E] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

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

Tue. May 28, 2019 1:45 PM - 3:15 PM 101 (1F)

convener:Mitsuteru Sato(Department of Cosmoscience, Hokkaido University), Yukihiro Takahashi(Department of Cosmosciences, Graduate School of Science, Hokkaido University), Hisayuki Kubota(Hokkaido University), Kozo Yamashita(Ashikaga University, Department of Engineering.), Chairperson:Mitsuteru Sato(Faculty of Science, Hokkaido University), Kozo Yamashita(Department of Technology, Ashikaga Institute of Technology)

2:15 PM - 2:30 PM

[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.