@article{oai:muroran-it.repo.nii.ac.jp:00005943,
 author = {中津川,  誠 and NAKATSUGAWA, Makoto and 星, 清 and HOSHI, Kiyoshi},
 journal = {河川技術論文集},
 month = {Jun},
 note = {application/pdf, 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., 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},
 pages = {453--458},
 title = {融雪期に豪雨が相俟って生起する出水の予測について},
 volume = {7},
 year = {2001},
 yomi = {ナカツガワ, マコト and ホシ, キヨシ}
}