A Climatological Study of Heavy Rainfalls due to Typhoon Hagibis in 2019

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  • FUJIBE Fumiaki
    Research Center for Climatology, Department of Geography, Tokyo Metropolitan University
  • MATSUMOTO Jun
    Department of Geography, Tokyo Metropolitan University
  • KAMAHORI Hirotaka
    Atmosphere and Ocean Research Institute, University of Tokyo Meteorological Research Institute

Bibliographic Information

Other Title
  • 令和元年東日本台風（台風1919）による大雨の気候学的評価
  • 令和元年東日本台風(台風1919)による大雨の気候学的評価 : 区内観測資料の利用
  • レイワ ガンネン ヒガシニホン タイフウ(タイフウ 1919)ニ ヨル オオアメ ノ キコウガクテキ ヒョウカ : クナイ カンソク シリョウ ノ リヨウ
  • ―区内観測資料の利用―

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Abstract

<p> The climatological characteristics of the heavy rainfall event due to Typhoon Hagibis (1919), which caused landslides and floods in many places of eastern Japan in October 2019, was examined using daily precipitation data from the former JMA’s Kunai (local) rainfall observations that were as dense as the current AMeDAS observation system. It was found that the rainfall distribution due to Hagibis was characterized by a heavy rain area over the Kanto Mountains extending northward to the eastern part of the Tohoku District, in a similar way to that of the Tropical Cyclone Kathleen case which caused severe floods in the Kanto Plain in 1947. An extreme value analysis for the two-day precipitation records indicated that area-averaged precipitation amounts in regions of heavy rainfalls due to both Hagibis and Kathleen had a return period of the order of a hundred years.</p>

Journal

  • Tenki

    Tenki 67 (10), 595-607, 2020

    Meteorological Society of Japan

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