한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제27권6호
  • /
  • Pages.830-840
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  • 2011
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  • 2289-0971(pISSN)
  • /
  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
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기후변화를 고려한 낙동강 유역의 수온과 수질 탄성도 분석

Elasticity Analyses between Water Temperature and Water Quality considering Climate Change in Nak-dong River Basin

  • 손태석 (부산대학교 BK 21 유비쿼터스 항만물류 인프라 구축 사업단) ;
  • 이규열 (국립환경과학원 낙동강물환경연구소) ;
  • 임태효 (국립환경과학원 낙동강물환경연구소) ;
  • 신현석 (부산대학교 사회환경시스템공학부)
  • Shon, Tae Seok (Brain Korea 21 Division for Ubiquitous-Applied Construction of Port Logistics Infrastructures, Pusan National University) ;
  • Lee, Kyu Yeol (Nakdong River Environmental Research Center) ;
  • Im, Tae Hyo (Nakdong River Environmental Research Center) ;
  • Shin, Hyun Suk (School of Civil & Environmental Engineering, Pusan National University)
  • 투고 : 2011.08.17
  • 심사 : 2011.10.16
  • 발행 : 2011.11.30
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초록

Climate change has been settled as pending issues to consider water resources and environment all over the world, however, scientific and quantitative assessment methods of climate change have never been standardized. When South Korea headed toward water deficiency nation, the study is not only required analysis of atmospheric or hydrologic factors, but also demanded analysis of correlation with water quality environment factors to gain management policies about climate change. Therefore, this study explored appropriate monthly rainfall elasticity in chosen 41 unit watersheds in Nak-dong river which is the biggest river in Korea and applied monitored discharge data in 2004 to 2009 with monthly rainfall using Thiessen method. Each unit watershed drew elasticity between water temperature and water quality factors such as BOD, COD, SS, T-N, and T-P. Moreover, this study performed non-linear correlation analysis with monitored discharge data. Based on results of analysis, this is first steps of climate change analysis using long-term monitoring to develop basic data by Nak-dong river Environmental Research Center (Ministry of Environment) and to draw quantitative results for reliable forecasting. Secondary, the results considered characteristic of air temperature and rainfall in each unit watershed so that the study has significance its various statistical applications. Finally, this study stands for developing comparable data through "The 4 major river restoration" project by Korea government before and after which cause water quality and water environment changes.

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