水環境

[II-183] Proposal of discharge and water temperature estimation model considering geological characteristics and atmospheric land surface process

〇Atsuya Takeda¹, Makoto Nakatsugawa¹, Keisuke Kudo², Nobuo Ishiyama³ (1.Muroran Institute of Technology, 2.docon company, 3.Hokkaido Independent Research Organization)

Keywords:Sorachi river, LoHAS, Geological characteristics, SCE-UA method, Water balance, Groundwater runoff

Water temperature changes due to climate change can affect the life of cold-water fish. To generalize a model for estimating water temperature fluctuations due to climate change, in this study, we used observed results to estimate the outflow and water temperature at the small-basin level (basin area of 20 km² or less) using the LoHAS and distributed runoff model . The calculated values were calculated taking into account geological properties and atmospheric surface processes.