DOI: 10.1002/2015GL063753
论文题名: Identifying the role of typhoons as drought busters in South Korea based on hidden Markov chain models
作者: Yoo J. ; Kwon H.-H. ; So B.-J. ; Rajagopalan B. ; Kim T.-W.
刊名: Geophysical Research Letters
ISSN: 0094-8729
EISSN: 1944-8460
出版年: 2015
卷: 42, 期: 8 起始页码: 2797
结束页码: 2804
语种: 英语
英文关键词: drought
; drought buster
; HMM
; typhoon
Scopus关键词: Chains
; Hidden Markov models
; Hurricanes
; Markov processes
; Signal theory
; Storms
; Better performance
; Coastal regions
; Drought analysis
; Hidden Markov chain model
; HMM
; Meteorological drought
; South Korea
; Spring season
; Drought
; climate modeling
; coastal zone
; drought
; Markov chain
; regional climate
; seasonal variation
; spatiotemporal analysis
; typhoon
; South Korea
英文摘要: This study proposed a hidden Markov chain model-based drought analysis (HMM-DA) tool to understand the beginning and ending of meteorological drought and to further characterize typhoon-induced drought busters (TDB) by exploring spatiotemporal drought patterns in South Korea. It was found that typhoons have played a dominant role in ending drought events (EDE) during the typhoon season (July-September) over the last four decades (1974-2013). The percentage of EDEs terminated by TDBs was about 43-90% mainly along coastal regions in South Korea. Furthermore, the TDBs, mainly during summer, have a positive role in managing extreme droughts during the subsequent autumn and spring seasons. The HMM-DA models the temporal dependencies between drought states using Markov chain, consequently capturing the dependencies between droughts and typhoons well, thus, enabling a better performance in modeling spatiotemporal drought attributes compared to traditional methods. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929505461&doi=10.1002%2f2015GL063753&partnerID=40&md5=c9bafc792e720b24c16565cf5fc380d8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8345
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Civil Engineering, Chonbuk National University, Jeonju, South Korea
Recommended Citation:
Yoo J.,Kwon H.-H.,So B.-J.,et al. Identifying the role of typhoons as drought busters in South Korea based on hidden Markov chain models[J]. Geophysical Research Letters,2015-01-01,42(8).