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Estimating Probable Annual Maximum Daily Streamflow on Climate Change - One the Runoff Analysis -

  • Crisisonomy
  • Abbr : KRCEM
  • 2015, 11(5), pp.119-133
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general

김형산 1 Maeng, Seung-jin 1 Hwang, Man Ha 2

1충북대학교
2한국수자원공사 수자원연구원

Accredited

ABSTRACT

With the recent increase in frequency of extreme hydrological events due to global warming and climate change, the number of natural disasters especially by flood have rapidly increased in Korea. To prevent this damage, there is a need of proper flood flow designing for dams and hydraulic structures considering climate changes. In this study annual maximum daily streamflow was computed considering the climate change scenarios and in next study probable annual maximum daily streamflow was analyzed according to the future climate change. Past hydrological data was collected from 83 rainfall stations and 8 weather stations situated at Geum River watershed, temperature and daily precipitation data of the RCP scenarios was extracted from the year 2014 to 2100. Average relative error during the calibration of model at Geum river watershed for the year 2006 and 2007 was 10.5% and 9.2% respectively and verification result for 2004 was 9.2%. Finally, by using the determined parameters, annual maximum flood was computed at the main points corresponding to RCP scenarios that was further utilized for computation of probable annual maximum daily streamflow.

Citation status

* References for papers published after 2023 are currently being built.