Research for Elucidating the Mechanisms and Improving Prediction Techniques of Linear Precipitation Bands, Typhoons, and Associated Extreme Events through Intensive ObservationsTadashi Fujita, Ahoro Adachi, Kozo Okamoto, Teruyuki Kato, Hisaki Eito, Takuya Kawabata, Akiyoshi Wada, Wataru Mashiko, Hiroshi Yamauchi, Tetsu Sakai, Takahiro Toyoda, Katsuya Toyama, Akihiro Hashimoto, Yosuke Fujii, Toshiyuki Ishibashi, Yasutaka Ikuta, and Nadao Kohno (Meteorological Research Institute, Japan Meteorological Agency)Meteorological Research Institute, Japan Meteorological Agency |
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To prevent and mitigate increasingly severe and frequent weather disasters, elucidating the mechanisms of linear precipitation bands and typhoons are urgent priorities. Research efforts of Meteorological Research Institute to understand the mechanisms of linear precipitation bands, conducted through collaboration with universities and research institutions, have been strengthened and expanded since 2025 to include typhoons.
Linear precipitation bands exhibit extremely diverse forms. Typhoon influences are significant in many cases, necessitating analysis as a complex phenomenon. Atmosphere-ocean interactions that influence water vapor inflow into the lower atmosphere are also important.
Intensive atmospheric and oceanic observations are being conducted in expanded sea areas during the rainy season, including aircraft dropsonde observations and unmanned ocean observations. Efforts are also underway to improve mechanism understanding and forecasting techniques utilizing data from the intensive observations in addition to satellite and conventional observations, by weather case studies, numerical simulations and data assimilation experiments. These research activities will be presented." |