RUNOFF SIMULATION IN SMALL AND MEDIUM-SIZED RIVERS USING DIGITAL ELEVATION MODELS WITH DIFFERENT SPATIAL RESOLUTIONS
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- NISHIKAWA Ryo
- 香川大学大学院 工学研究科 安全システム建設工学専攻
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- ISHIZUKA Masahide
- 香川大学 創造工学部創造工学科
Bibliographic Information
- Other Title
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- 空間分解能の異なる標高データを用いた中小河川における流出シミュレーション
Abstract
<p> In recent years, with the increase in extreme rainfall, floods of small and medium-sized rivers have occurred frequently.We focused on a small and medium-sized river (155 km2) and conducted runoff simulation using four digital elevation models (Asia 30, Asia15, fifth-order mesh, and Japan Flow Direction Map (JFDM)) with different spatial resolutions. As a result, JFDM with a spatial resolution of 77 m x 92 m (three times scale-up) gives high values for both the Nash-Sutcliffe coefficient and the correlation coefficient.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 77 (2), I_283-I_288, 2021
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390854065000007936
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- NII Article ID
- 130008160166
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- ISSN
- 2185467X
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed