STUDY ON THE FREQUENCY OF EMERGENCY SPILLWAY GATE OPERATION IN MULTIPLE-PURPOSE DAMS IN SNOWY AREAS DUE TO CLIMATE CHANGE

• NISHIJIMA Seren

  室蘭工業大学大学院工学研究科

• NAKATSUGAWA Makoto

  室蘭工業大学大学院工学研究科

• SANDOU Tomohiro

  室蘭工業大学大学院工学研究科

Bibliographic Information

Other Title

• 気候変動に伴う積雪地域の多目的ダムにおける異常洪水時防災操作の発生頻度に関する研究

Abstract

 This study aimed to evaluate the flood control functions of multi-purpose dams in snow-covered areas, considering increased flooding risks associated with climate change. In snow-covered areas such as Hokkaido, heavy rainfall during the snowmelt period makes the prevention of extreme floods difficult around multi-purpose dams due to their high water levels. This study estimated the frequency of disaster prevention operation due to severe flooding based on the climate change ensemble data for the whole year, including heavy rain in summers and snowmelt combined with heavy rainfall. The results indicate that the frequency of disaster prevention operations due to extreme flooding will increase in the future, especially during winter and snowmelt. The results obtained will be useful for planning flood control measures that can adapt to climate change, such as pre-flood dam release, dam regeneration, and construction of new dams.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 77 (2), I_43-I_48, 2021

  Japan Society of Civil Engineers

Keywords

• Hoheikyo dam
• multipurpose dam
• emergency spillway gate operation
• snowy region
• d4PDF
• combination of heavy rain with snowmelt

Details

• CRID: 1390854064991882112
• NII Article ID: 130008160139
• DOI: 10.2208/jscejhe.77.2_i_43
• ISSN: 2185467X
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/77/2/77_I_43/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed