Inundation Analysis in the Coastal Area Considering Climate Change Due to Global Warming

Pokharel, Parameshor; Takeda, Makoto; Naoki, Matsuo

Inundation Analysis in the Coastal Area Considering Climate Change Due to Global Warming

2009

Pokharel, Parameshor | Takeda, Makoto | Naoki, Matsuo

This paper describes the possible inundation scenarios under sea level rise conditions due to global climate change with particular reference to Nagoya, Japan. The study was carried out by using a two-dimensional sea model integrated with one-dimensional river flow model and two-dimensional overland flow model. For the connections of models, the upstream discharge or downstream water level in each grid is considered as the boundary conditions. The governing equations used for the analysis have been solved by finite volume method. The analysis results implicate that some parts of densely populated coastal area of Nagoya city will be vulnerable to inundation if the sea level rise due to global warming by 1 m. Moreover, the performances of existing sewer system and inundation scenario under various conditions have been analyzed.

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