Distributed hydrologic simulations to analyze the impacts of land use changes on flood characteristics in the Yasu River basin in Japan

スポンサーリンク

概要

• 論文の詳細を見る

• In most parts of the world, land use data from remote sensing have been accumulated for more than 30 years. Historical images of land use can be used to know the location and types of land use change as a step towards investigating the impact of such change on floods. In this paper, we present a distributed watershed model developed for using land use data for investigating the impacts of land use changes on floods. The output of the model includes hydrographs and runoff maps simulated with different land use data to show the impact of land use change. The model has been applied in the Yasu River basin in Japan to evaluate the impact of land use changes between 1976 and 1997. The results show that land use changes during this period can be associated with an increase of up to 18% in peak flow and decrease in travel time. The changes in flood peaks appear to be largely influenced by the spatial distribution of land use change, and the changes are explained by a physically based distributed hydrological model considering the spatiotemporal distributions of surface water storage and surface roughness derived from land use data.

• 日本自然災害学会の論文
• 2005-00-00

著者

• Takara K.

  Disaster Prevention Research Institute Kyoto University

• KIMARO T.

  Water Resources Engineering Department, Faculty of Civil Engineering and the Built Environment, College of Engineering and Technology, University of Dar es Salaam

• TACHIKAWA Y.

  Disaster Prevention Research Institute, Kyoto University

関連論文

• Distributed hydrologic simulations to analyze the impacts of land use changes on flood characteristics in the Yasu River basin in Japan

スポンサーリンク