Meteorological characteristics of line-shaped rainbands in northern Japan and its surrounding seas under climate change
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- Yuta Ohya
- a Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
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- Tomohito J. Yamada
- c Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
書誌事項
- 公開日
- 2024-01-30
- 資源種別
- journal article
- 権利情報
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- http://creativecommons.org/licenses/by/4.0/
- DOI
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- 10.2166/hydro.2024.121
- 公開者
- IWA Publishing
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説明
<jats:title>Abstract</jats:title> <jats:p/> <jats:p>In recent years, line-shaped rainbands (LRBs) have increased in Hokkaido, Japan. LRBs caused several flood disasters historically, thus the weather patterns that cause them need to be investigated. This study aimed to understand statistically the relationship between LRBs and weather patterns during the summer months under climate change conditions. Our study investigates the link between LRBs and weather patterns in Hokkaido during July and August, using historical and climate prediction models. With a 2°/4° global temperature rise, LRB occurrences in this region increase by approximately 1.51/2.07 times. The highest occurrences of LRBs correlate with increased water vapor flux from the south and positive pressure anomalies over the Pacific Ocean. Three main weather patterns contribute significantly to LRBs: (1) a nearby low-pressure system, (2) a strengthening Pacific High frontal pattern, and (3) approaching or landing typhoons in Hokkaido. These patterns double the LRB occurrence probability, a trait observed across past and projected climates (+2K and +4K experiments). These are important insights for future flood risk management.</jats:p>
収録刊行物
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- Journal of Hydroinformatics
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Journal of Hydroinformatics 26 (2), 397-407, 2024-01-30
IWA Publishing
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キーワード
詳細情報 詳細情報について
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- CRID
- 1360582250334961024
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- ISSN
- 14651734
- 14647141
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE