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Characteristics and Controlling Factors of the Drought Runoff Coefficient
http://hdl.handle.net/10228/0002000616
http://hdl.handle.net/10228/000200061602188ece-f52e-45ae-92fa-a2170030145a
| 名前 / ファイル | ライセンス | アクション |
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10429460.pdf (425 KB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||||||||||
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| 公開日 | 2024-05-10 | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | journal article | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Characteristics and Controlling Factors of the Drought Runoff Coefficient | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 著者 |
厳島, 怜
× 厳島, 怜
WEKO
35469
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Increasing water demand due to population growth, economic development, and changes in rainfall patterns due to climate change are likely to alter the duration and magnitude of droughts. Understanding the relationship between low-flow conditions and controlling factors relative to the magnitude of a drought is important for establishing sustainable water resource management based on changes in future drought risk. This study demonstrates the relationship between low-flow and controlling factors under different severities of drought. I calculated the drought runoff coefficient for six types of occurrence probability, using past observation data of annual total discharge and precipitation in the Japanese archipelago, where multiple climate zones exist. Furthermore, I investigated the pattern of change in the drought runoff coefficient in accordance with the probability of occurrence of drought, and relationships among the coefficient and geological, land use, and topographical factors. The drought runoff coefficient for multiple drought magnitudes exhibited three behaviors, corresponding to the pattern of precipitation. Results from a generalized linear model (GLM) revealed that the controlling factors differed depending on the magnitude of the drought. During high-frequency droughts, the drought runoff coefficient was influenced by geological and vegetation factors, whereas land use and topographical factors influenced the drought runoff coefficient during low-frequency droughts. These differences were caused by differences in runoff, which dominated stream discharge, depending on the magnitude of the drought. Therefore, for effective water resource management, estimation of the volume of drought runoff needs to consider the pattern of precipitation, geology, land use, and topography. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : Water 巻 13, 号 9, p. 1259, 発行日 2021-04-30 |
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| 出版者 | MDPI | |||||||||||||
| DOI | ||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.3390/w13091259 | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||
| 収録物識別子 | 2073-4441 | |||||||||||||
| キーワード | ||||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | drought | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | geology | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | land use | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | topography | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | occurrence probability | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | water resource management | |||||||||||||
| 出版タイプ | ||||||||||||||
| 出版タイプ | VoR | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
| 査読の有無 | ||||||||||||||
| 値 | yes | |||||||||||||
| 研究者情報 | ||||||||||||||
| URL | https://hyokadb02.jimu.kyutech.ac.jp/html/100001703_ja.html | |||||||||||||
| 論文ID（連携） | ||||||||||||||
| 値 | 10429460 | |||||||||||||
| 連携ID | ||||||||||||||
| 値 | 12118 | |||||||||||||
