国立研究開発法人土木研究所

論文・刊行物検索

利用者の方へ

詳細情報

論文投稿 複数の洪水イベントにおける分布型流出モデルの最適パラメータの推定

作成年度 2014 年度
論文名 複数の洪水イベントにおける分布型流出モデルの最適パラメータの推定
論文名(和訳)
論文副題
発表会
誌名 土木学会論文集B1(水工学)
巻・号・回 59
発表年月日 2015/02/01
所属研究室/機関名 著者名(英名)
ICHARM宮本守
(株)富士通研究所松本和宏
ICHARM津田守正
(株)富士通研究所山影譲
ICHARM岩見洋一
抄録
In general, the error sources of flood forecasting by a runoff model include input data, model structure, and parameter setting. The objective of this study was development of a method to minimize errors due to parameter setting. Hydrological parameters of a distributed runoff model were optimized for each of the fifteen past floods by a huge variety of optimization algorithms and three error assessment functions. Although optimized parameters were widely distributed in the search range, a high correlation was found between the optimized parameters and the runoff characteristics. Furthermore, the predictive accuracy of the optimized parameter sets was validated by applying them to an additional ten floods. The validation showed that the parameter sets optimized by floods similar to the target flood in terms of runoff rate can reproduce the measured discharge with high accuracy.
本文表示【https://doi.org/10.2208/jscejhe.71.I_271】
ページの先頭へ

この画面を閉じる

Copyright (C) 2022 Independent Administrative Institution Public Works Research Institute