九州10河川を対象とした流量レジームの特性に関する研究

抄録

This research is intended to characterize flow regime of 10 rivers in Kyushu, western Japan. Flow regime is determined by both natural conditions (e.g., geography, subsurface geology, rainfall patterns) and human-associated impacts. Using 8-years record of mean daily flow values, we derived flow index representing mean values of annual flow, winter discharge and intra-annual variation of discharge etc., and compared the index among 10 streams. Given the different catchments area of the streams investigated, we used the values normalized by catchments area (m³s⁻¹ 100km⁻²).