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GIS기법과 기후변화시나리오를 이용한 극한 강우에 따른 재해 영향성 평가
함창학(Hahm, Chang Hahk),김병식(Kim, Byung-Sik) 한국측량학회 2012 한국측량학회 학술대회자료집 Vol.2012 No.4
There has been growing the damage in an urban area on account of recent climate change. As the complicated type of damages such as domestic flooding, landslide overflow of rivers etc., has been emerged, great attention has been shown to the question of extreme precipitation, local downpour. Under confined spaces and limited resources, we should selectively take appropriate counterplan on flood disaster in accordance with the climate change. For decision making, we should consider the estimation of disaster according to extreme precipitation affected by climate change. Simulating the daily rainfall in the future (2001-2100) by using SRES A2 scenarios and high-resolution RCM model, we estimated EVI(Extreme Volatility Index), HRI(Human Risk Index), and DII(Disaster Impact Index). Then, we finally evaluated the effect of occurrence of extreme precipitation in future climate change through comparison and analysis on spatio-temporal distribution of the Korean Peninsula. The conclusion which can be drawn from study are these: 1) Extreme Volatility Index loomed large in Gyeongsang-do and Jeolla-do, 2) Human Risk Index has largely revealed 7 metropolitan city and national capital region, and 3) Area located on the border of the whole area on the West Coast , Gyeongsang-do and Jeolla-do have large Disaster Impact Index. In short, these areas will be influenced by flood disaster in accordance with the future climate change.
함창학(Hahm Chang Hahk),김기형(Kim Gee Hyoung) 대한공간정보학회 2010 대한공간정보학회지 Vol.18 No.1
정확한 하천유량은 하천이 지니고 있는 이수, 치수 및 생태기능이 원활이 유지되기 위해서 가장 중요한 항목이다. 특히 하천의 생태기능은 하천의 환경개선에 있어 매우 중요한 기능이다. 하천의 생태유량에 있어서 하천에 서식하는 생물 및 하천지형에 대한 정확한 정보는 중요한 역할을 한다. 본 논문에서는 유역 및 하천의 지형공간자료를 활용하여 시범적으로 하천의 생태유량을 산정하였다. 하천의 환경복원에 있어서 지형공간자료는 매우 중요한 기초자료로 활용된다. The correct river discharge is a important item to keep a river role of using, controlling and ecology. Especially river role of ecology is very important for environmental development of river. In assesment of ecological flow, exact information of river life and topograph is very important. In this paper, the assesment of environmental flow is conducted using geo-spatial data of basin and river. The geo-spatial data is used as a important basic data in river restoration.