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タイトル
  • ja 融雪期に豪雨が相俟って生起する出水の予測について
その他のタイトル
  • ESTIMATION OF FLOOD RUNOFF INDUCED BY HEAVY RAINFALL IN SNOWMELT SEASON
作成者

中津川, 誠

星, 清

権利情報
    • Copyright 2001 土木学会 ダウンロードを含むこの著作物の利用は、著作権法の私的使用及び引用の範囲に限り認められます。その範囲外の利用については、土木学会 の承諾が必要です。
主題
  • Other Heavy rainfall coupled with snowmelt
  • Other estimation of flood runoff
  • Other etc.
  • NDC 510
内容注記
Other
  • High water level of dam reservoirs in cold snowy regions need to be maintained in the spring season because of water uses such as irrigation. Therefore heavy rainfall coupled with snowmelt renders the regulation of dam reservoirs ineffective. There is a possibility of heavy rain even in an early spring resulting from global warming in recent years. Actually, heavy rainfall induced the unexpected flood in the Hoheikyo dam catchment area in Hokkaido in mid-May 2000 and it has caused difficulties in dam management especially from the viewpoint of flood control. This study deals with the estimation of flood runoff due to heavy rainfall coupled with snowmelt. We applied a heat balance model using meteorological data collected for dam operations to calculate snowmelt amounts, while a modified tank model based on storage routing to estimate infiltration of snowmelt and rainfall in snow pack and runoff amount into dam reservoirs. Then, the parameters related to storage routing modeling could be effectively calibrated by runoff separation as well as inverse estimation of water on the ground surface provided as an input of runoff using the filter separation AR method. Thus, the long-term runoff pattern throughout snowmelt seasons was successfully reproduced. The proposed method is of practical use in estimations of snow equivalent to water and inflow and, therefore is applicable to comprehensive water management in a basin of snowy cold regions.
Other
  • Keyword / Heavy rainfall coupled with snowmelt, estimation of flood runoff, storage routing for infiltration and runoff, calibration of parameter based on runoff separation and inverse estimation of water on the ground surface
出版者土木学会
日付 Created 2016-02-15 , Issued 2001-06
言語jpn
資源タイプjournal article
出版タイプVoR
資源識別子 URI http://hdl.handle.net/10258/1551
関連
  • isIdenticalTo NCID BA67519158
  • isIdenticalTo NAID 120004681085
収録誌情報
    • 河川技術論文集
    7, 453-458
ファイル
コンテンツ更新日時2019-07-29T03:42:32Z