An application of an integrated climate extreme index (CEI) is presented, that quantifies observed climate change of South Korea by various five indicators. Based on an annual basis surface observation station data, climate extreme indicators that measure the fraction of the stations in South Korea are analyzed. Results for the annual CEI indicate that the area experiencing much above-normal maximum and minimum temperatures in recent years has been increased. The extremes in much greater-than-normal number of days with or without precipitation has a large interannual variability similar with much above and below normal standardized precipitation index. Results from above-normal proportion of heavy daily precipitation show a more pronounced increasing feature from 1990’s to the early 2010’s. Five indicators in CEI had distinct contrasting features which indicates that CEI can be a useful tool in providing the information on the percentage of the climate in South Korea that experienced various kinds of extreme conditions during any given year or period.

Abstract
1. 서론
2. 자료 및 연구방법
    1) 연구자료
    2) 연구방법
3. 통합 극한기후지수의 적용
    1) 최고기온 지수
    2) 최저기온 지수
    3) 가뭄 지수
    4) 일강수량 지수
    5) 강수/무강수일수 지수
4. 요약 및 결과
5. 토의
    1) 다양한 시간 범위에 대한 분석
    2) 가뭄지수에 대한 분석
    3) 일강수량 극한의 임계값 재정의
References

• 문자연(건국대학교 기후연구소 연구원) | Ja-Yeon Moon (Research scientist, Climate Research Institute, Konkuk University)
• 최영은(건국대학교 지리학과) | Youngeun Choi (Department of Geography, Konkuk University) Correspondence
• 김유진(건국대학교 지리학과 박사과정) | Yujin Kim (Department of Geography, Konkuk University)