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Title
Japanese:全球水資源モデルH08を用いた大都市における5分水平解像度水需給推定 
English:5-ARCMIN Resolution Assessment of Water Stress in Large Cities Using the H08 Global Hydrological Model 
Author
Japanese: 加藤 青葉, 土居 慶祐, 鼎 信次郎.  
English: Aoba Kato, Keisuke Doi, Shinjiro Kanae.  
Language Japanese 
Journal/Book name
Japanese:土木学会論文集B1（水工学） 
English:Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 
Volume, Number, Page Volume 77    Issue 2    Page I217-I222
Published date Dec. 2021 
Publisher
Japanese:公益社団法人土木学会 
English:Japan Society of Civil Engineers 
Conference name
Japanese:第66回水工学講演会 
English:The 66th Conference on Hydraulic Engineering 
Conference site
Japanese:オンライン 
English:Online 
Official URL https://www.jstage.jst.go.jp/article/jscejhe/77/2/77_I_217/_article/-char/ja/
 
DOI https://doi.org/10.2208/jscejhe.77.2_I_217
Abstract  In recent years, the development of global hydrological models and their higher resolution have been progressing, but with the higher resolution problem, and water stress tends to be overestimated in grid-scale assessment. In this study, we tried the evaluation at the city scale, and estimated the water demand and the supply in each city. We evaluated the water stress and solved the problem. Monthly water stress evaluations were conducted for 20 cities, taking into account the location of the actual water intake points and the amount of water transported from urban water infrastructures. The monthly water stress evaluation allowed us to verify the seasonal change of water stress and the effect of the urban water infrastructure on water supply.

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