Natural Hazards

, Volume 73, Issue 3, pp 1663–1678

Evaluation of drought and flood risks in a multipurpose dam under climate change: a case study of Chungju Dam in Korea

  • Soojun Kim
  • Jaewon Kwak
  • Hui Seong Noh
  • Hung Soo Kim
Original Paper

DOI: 10.1007/s11069-014-1164-x

Cite this article as:
Kim, S., Kwak, J., Noh, H.S. et al. Nat Hazards (2014) 73: 1663. doi:10.1007/s11069-014-1164-x

Abstract

The purpose of this study was to evaluate the effects of climate change on the drought and flood risks of a multipurpose dam. To achieve this, A2 climate change scenarios of RegCM3 were collected about Chungju Dam in Korea. To analyze drought risks, weather data obtained by the statistical downscaling method were entered to produce runoff series by runoff modeling and water balance was analyzed based on water use scenarios to review changes in the storage volume under climate change. To analyze flood risks, changes in water levels of the dam in future flood seasons were reviewed based on the current dam operation method. The results of the review indicated that both the drought and the flood risks of the dam would increase in the future. The reason was considered to be the movement of the flood season’s runoff characteristics from July and August to August and September because of climate change. Therefore, for climate change adaptation planning, not only quantitative changes in hydrologic values but also changes in temporal characteristics should be considered and given importance.

Keywords

Climate change Drought Flood Water balance Reservoir operation method 

Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Soojun Kim
    • 1
  • Jaewon Kwak
    • 2
  • Hui Seong Noh
    • 2
  • Hung Soo Kim
    • 2
  1. 1.Columbia Water Center, Earth InstituteColumbia UniversityUpper ManhattanUSA
  2. 2.Department of Civil EngineeringInha UniversityIncheonSouth Korea