STUDY ON A PRECISION IMPROVEMENT OF RUNOFF PREDICTION BY HYPE MODEL USING POLYGONAL IMPERVIOUS AREA RATIO DATA IN AN URBANIZED AREA
都市部におけるポリゴン型不浸透面積率データを用いたHYPEモデルの流出予測精度向上に関する研究

Hiroto TANOUCHI, Akira KAWAMURA, Hideo AMAGUCHI, Jonas OLSSON
2016 Journal of Japan Society of Civil Engineers Ser B1 (Hydraulic Engineering)  
1 学生会員 修(工) 首都大学東京 都市環境科学研究科(〒192-0397 東京都八王子市南大沢1-1) 2 正会員 工博 首都大学東京 教授 都市環境科学研究科(〒192-0397 東京都八王子市南大沢1-1) 3 正会員 博(工) 首都大学東京 助教 都市環境科学研究科(〒192-0397 東京都八王子市南大沢1-1) 4 非会員 Ph.D., Swedish Meteorological and Hydrological Institute(SE-601 76 Norrkoping) A HYPE (HYdrological Prediction for the Environment) model considering impervious land cover in an urbanized watershed is set up to improve prediction precision of storm runoff. The set-up of the model is based on the Urban Atlas that is polygonal
more » ... hat is polygonal land cover data with impervious information. Firstly accurate impervious area ratios in a target watershed are calculated using the Urban Atlas, and the ratios are set to the HYPE model. Secondly, appropriate parameters to describe hydrological property in an urbanized area are implemented for the HYPE model. The model was applied for the watershed including urbanized area of Svedala, Sweden. It was demonstrated that impervious information obtained by polygonal impervious area ratio data contributed precision improvement of runoff prediction by HYPE model in urbanized area.
doi:10.2208/jscejhe.72.i_427 fatcat:ykaatiio7jhzlceimshwfpqf3q