2020年
Risk of rainfall-triggered landslide disasters under climate change by applying critical line method to NHRCM05
京都大学防災研究所年報
- ,
- ,
- 巻
- 63
- 号
- B
- 開始ページ
- 165
- 終了ページ
- 174
- 記述言語
- 英語
- 掲載種別
- 出版者・発行元
- 京都大学防災研究所
We present a study on the future changes of landslide risk in Japan by applying the critical line method to the 5-km regional climate model of NHRCM05. From the six datasets of NHRCM05, we extracted effective rainfall events from the parameter of surface precipitation without any interpolation. In all extracted rainfall events, the critical line method was applied to obtain the frequency of landslide occurrence at each 1 by 1-km grid in the whole Japan. We exhibit the future changes of nationwide landslide risk distribution, monthly occurrence frequency in each geographical region, and occurrence trend in each prefecture. Additionally, from a different perspective, we reveal the relation between landslide risk trend and the geological feature of plate tectonics. As a result, the landslide risk is higher in the early summer of July in west Japan and in the late summer of September in east Japan. Particularly, the analysis shows a significant increasing trend of landslide risk in the Hokkaido area.
- リンク情報
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- CiNii Articles
- http://ci.nii.ac.jp/naid/120006950371
- CiNii Books
- http://ci.nii.ac.jp/ncid/AN00027784
- URL
- http://hdl.handle.net/2433/260828
- ID情報
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- ISSN : 0386-412X
- CiNii Articles ID : 120006950371
- CiNii Books ID : AN00027784