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Moisture sources and isotopic composition of the Meiyu-Baiu rainfall in East Asia

研究課題

研究課題/領域番号 23K19068
研究種目

研究活動スタート支援

配分区分基金
審査区分 0204:天文学、地球惑星科学およびその関連分野
研究機関九州大学

研究代表者

李 肖陽  九州大学, 理学研究院, 助教 (80983501)

研究期間 (年度) 2023-08-31 – 2025-03-31
研究課題ステータス 交付 (2023年度)
配分額 *注記
2,860千円 (直接経費: 2,200千円、間接経費: 660千円)
2024年度: 1,430千円 (直接経費: 1,100千円、間接経費: 330千円)
2023年度: 1,430千円 (直接経費: 1,100千円、間接経費: 330千円)
キーワードMeiyu-Baiu rainfall / moisture source / isotopic composition / East Asia / Heavy rainfall
研究開始時の研究の概要

This project will combine isotopic field observation and numerical simulation to investigate the major moisture sources and their corresponding moisture transport and thermodynamic processes with respect to large-scale circulations for the Meiyu-Baiu rainfall in East Asia.

研究実績の概要

Stable water isotopes have been widely used to investigate the moisture sources and hydrological processes based on limited ground-based observations. In this project, we combine isotopic field observation and numerical simulation to investigate the major moisture sources and their corresponding moisture transport and thermodynamic processes with respect to large-scale circulations for Meiyu-Baiu rainfall.
Moisture sources and isotopic composition of the 2020 heavy Meiyu-Baiu rainfall in East Asia have beed investigated based on the isotopic observations and the IsoRSM simulations.

現在までの達成度 (区分)
現在までの達成度 (区分)

1: 当初の計画以上に進展している

理由

Difference and similarity of moisture sources and isotopic composition between the 2020 Kumamoto heavy rainfall and the 2020 Yangtze River valley heavy Meiyu-Baiu rainfall have been investigated. These new results have been published in Atmospheric Research (Atmos Res. 2024, 297, 107114), and presented in the 2023 MSJ autumn meeting in Sendai.
The last 20-year simulations of moisture sources and isotopic composition of Meiyu-Baiu rainfall in Southwestern Japan is going on.

今後の研究の推進方策

The last 20-year (2004-2023) simulations of moisture sources and isotopic composition of Meiyu-Baiu rainfall in Southwestern Japan is going on. The new results will be presented in JpGU and the MSJ spring meeting in May 2024.
A second paper is also planned to clarify the interannual variations of moisture sources and isotopic composition of the Meiyu-Baiu rainfall in southwest Japan.

報告書

(1件)
  • 2023 実施状況報告書
  • 研究成果

    (3件)

すべて 2024 2023

すべて 雑誌論文 (1件) (うち査読あり 1件、 オープンアクセス 1件) 学会発表 (2件)

  • [雑誌論文] Moisture sources and isotopic composition of the 2020 extraordinary and persistent Meiyu rainfall in the Yangtze River valley modulated by large-scale circulations2024

    • 著者名/発表者名
      Xiaoyang Li, Ryuichi Kawamura, Kimpei Ichiyanagi, Kei Yoshimura
    • 雑誌名

      Atmospheric Research

      巻: 297 ページ: 107114-107114

    • DOI

      10.1016/j.atmosres.2023.107114

    • 関連する報告書
      2023 実施状況報告書
    • 査読あり / オープンアクセス
  • [学会発表] Moisture sources and isotopic composition of the 2020 extraordinary and persistent Meiyu rainfall in the Yangtze River valley modulated by large-scale circulations2023

    • 著者名/発表者名
      Xiaoyang LI , Ryuichi KAWAMURA , Kimpei ICHIYANAGI, Kei YOSHIMURA
    • 学会等名
      The 2023 autumn meeting of MSJ
    • 関連する報告書
      2023 実施状況報告書
  • [学会発表] Moisture sources and isotopic composition of the 2020 heavy Meiyu rainfall in the Yangtze River valley2023

    • 著者名/発表者名
      Xiaoyang LI , Ryuichi KAWAMURA , Kimpei ICHIYANAGI, Kei YOSHIMURA
    • 学会等名
      The 5th general meeting of Hotspot2
    • 関連する報告書
      2023 実施状況報告書

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公開日: 2023-09-11   更新日: 2024-12-25  

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