报告简介：

We introduce our research activities at the Typhoonshot project, focusing on implementing intervention methods to reduce the intensity of approaching typhoons. As part of this effort, we have identified several potential approaches that can be realized with current technology. In this talk, we specifically focus on our investigation of the atmospheric response to cold pool forcing, using numerical simulations to evaluate how imposed cooling in the planetary boundary layer influences convection, with particular emphasis on its effects on tropical cyclone intensity and structure.

As a first step, we conduct idealized simulations under radiative-convective equilibrium in a doubly periodic domain. A constant cooling source of 1 K h⁻¹ is applied below 1 km altitude. The results show that such forcing effectively suppresses convection over a horizontal scale of approximately 100 km. A simple column model indicates that the horizontal extent of the cold pool is governed by the balance between the mass flux strength and the surface heat supply.

主讲人简介：

Masaki Satoh is a Professor at the Atmosphere and Ocean Research Institute, The University of Tokyo, and Vice Director and Professor at the Typhoon Science and Technology Research Center, Yokohama National University (cross appointment). He received his Ph.D. in geophysics from The University of Tokyo in 1993. His research focuses on atmospheric general circulation, tropical meteorology, tropical cyclones, mesoscale systems, climate change, and numerical modeling, particularly using global nonhydrostatic models and satellite data. He has contributed to the development of the Nonhydrostatic Icosahedral Atmospheric Model (NICAM) and has published extensively on global cloud-resolving simulations. He served as Chief Editor of the Journal of the Meteorological Society of Japan (2010–2022) and was a Lead Author of Chapter 11 in the IPCC Sixth Assessment Report. His recent work includes typhoon intensity modification using artificial cold pools and participation in the EarthCARE satellite validation project.

Prof. Satoh has received several awards, including the Japan Meteorological Society Award (2007), the MEXT Science and Technology Award (2016), and the HPCI Outstanding Research Proposal Award (2023) for his work on the Fugaku supercomputer. He is actively engaged in international scientific communities, serving in leadership roles in AOGS, JpGU, and the Meteorological Society of Japan.

Full publication list: https://cesd.aori.u-tokyo.ac.jp/satoh/papers.html