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한국수자원학회논문집 Vol.52 No.1전체 목록 바로가기Vol 목록 바로가기
기후변화에 따른 메콩강 유역의 미래 유황변화 분석 / Analysis of climate change impact on flow duration characteristics in the Mekong River  PDF
저자명
이대업;이기하;송봉근;이승수
발행사
한국수자원학회
수록사항
한국수자원학회논문집, Vol.52 No.1(2019-01)
페이지
시작페이지(71)
ISSN
1226-6280
요약

The purpose of this study is to analyze the Mekong River streamflow alteration due to climate change. The future climate change scenarios were produced by bias corrections of the data from East Asia RCP 4.5 and 8.5 scenarios, given by HadGEM3-RA. Then, SWAT model was used for discharge simulation of the Kratie, the main point of the Mekong River (watershed area: 646,000 km2 , 88% of the annual average flow rate of the Mekong River). As a result of the climate change analysis, the annual precipitation of the Kratie upper-watershed increase in both scenarios compared to the baseline yearly average precipitation. The monthly precipitation increase is relatively large from June to November. In particular, precipitation fluctuated greatly in the RCP 8.5 rather than RCP 4.5. Monthly average maximum and minimum temperature are predicted to be increased in both scenarios. As well as precipitation, the temperature increase in RCP 8.5 scenarios was found to be more significant than RCP 4.5. In addition, as a result of the duration curve comparison, the streamflow variation will become larger in low and high flow rate and the drought will be further intensified in the future.