An Analysis of Variation in Design Drought Rainfall Based on Climate Change (기후변화에 따른 설계가뭄우량 변화 분석)

Seung Wook Lee (이승욱); Seungjin Maeng (맹승진); Hyung San Kim (김형산); Dong Joo Kim (김동주)

An Analysis of Variation in Design Drought Rainfall Based on Climate Change

Crisisonomy
Abbr : KRCEM
2016, 12(9), pp.119-128
Publisher : Crisis and Emergency Management: Theory and Praxis
Research Area : Social Science > Public Policy > Public Policy in general

Seung Wook Lee ¹, Seungjin Maeng ¹, Hyung San Kim ², Dong Joo Kim ³

¹충북대학교
²한국수자원공사
³한국농어촌공사

Accredited

ABSTRACT

South Korea has experienced an increased number of flood disasters following the increased frequency of local rainfall occurrence. With an increasing frequency of floods, drought frequency and duration of drought have also increased. The rainfall and meteorological analysis showed that droughts occurred every 5 years, including the worst drought in 2015. Although Chungbuk province has an annual average rainfall of 1,212.7mm, it had 650.3mm in 2015 which was only 53.8% of normal year rainfall. In this study, the L-moment parameters were determined by applying an appropriate probability distribution to the annual minimum series data according to climate change scenarios at 5 rainfall stations in Chungbuk province. The frequency of drought rainfalls was computed for each continuing time by utilizing the appropriate probability distribution in the L-moment method. The drought rainfall computed in this paper can be used as fundamental data for designing drought measures and estimating regional drought rainfall.

KEYWORDS

frequency of occurrence, probability distribution, L-moment, drought rainfall

Citation status

* References for papers published after 2023 are currently being built.

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