환경정책연구 (Journal of Environmental Policy)
- 제4권1호
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- Pages.21-38
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- 2005
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- 1598-7582(pISSN)
댐 건설로 인한 국지 수문기상환경의 변화 추정
Estimation of Local Change in Hydrometeorologic Environment due to Dam Construction
- 유철상 (고려대학교 공과대학 사회환경시스템공학과) ;
- 안재현 (서경대학교 이공대학 토목공학과) ;
- 강성규 (고려대학교 공과대학 사회환경시스템공학과) ;
- 김기욱 (고려대학교 공과대학 사회환경시스템공학과) ;
- 윤용남 (고려대학교 공과대학 사회환경시스템공학과)
- Yoo, Chul-Sang (Department of Civil and Environmental Engineering, Korea University) ;
- Ahn, Jae-Hyun (Department of Civil Engineering, Seokyeong University) ;
- Kang, Sung-Kyu (Department of Civil and Environmental Engineering, Korea University) ;
- Kim, Kee-Wook (Department of Civil and Environmental Engineering, Korea University) ;
- Yoon, Yong-Nam (Department of Civil and Environmental Engineering, Korea University)
- 발행 : 2005.06.30
초록
본 연구에서는 댐 건설로 인한 대규모 저수지의 수문기상학적 영향에 대한 공간적인 범위를 분석할 수 있는 모형을 구축하였으며, 구축된 모형을 이용하여 섬진강댐, 소양강댐, 안동댐 충주댐 등의 4개 댐에 대해 분석을 수행하였다. 이러한 분석에는 인공위성 영상을 이용한 토지이용분석과, 아울러 이 결과를 이용한 알베도의 변화추정이 포함된다. 본 연구에서 수행한 모형화 과정 및 적용 결과를 정리하면 다음과 같다. (1) 댐 건설로 인한 알베도의 공간적 변화는 댐의 규모와 크게 관련이 있으며, 섬진강댐은 댐 주변
In this study, a model for analyzing the spatial effect of large dam reservoirs on local hydrometeorology was developed, and then actually applied to the Seomjingang Dam, Soyanggang Dam, Andong Dam, and Chungju Dam. The application included the analysis of land use using the satellite images to derive the change in albedo before and after the dam construction. Summarizing the modeling procedure and its application results are as follows. (1) The change in albedo was found to be closely related with the size of the dam, also the spatial limit of albedo change were estimated to be 10-20km for the Seomjingang Dam, 40km for the Soyanggang Dam, 20-30km for the Andong Dam, and 50km for the Chungju Dam. (2) The change in the coefficient of recycle (ratio of internal supply of moisture to the total available moisture) was found to be big within the narrow boundary of the. dam, but become smaller as the boundary becomes larger. (3) The correlation between the albedo and. coefficient of recycle was found high. Thus, it could be concluded that the change in land use due to dam construction has much effect on the moisture circulation structure. (4) The spatial range of hydrometeorogic effect was compared with the water surface area of dam reservoir. The result showed that the spatial range sensitively increased up to