DOI: 10.1002/joc.5543
论文题名: Springtime extra-tropical cyclones in Northeast Asia and their impacts on long-term precipitation trends
作者: Cho H.-O. ; Son S.-W. ; Park D.-S.R.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 10 起始页码: 4043
结束页码: 4050
语种: 英语
英文关键词: extra-tropical cyclone
; long-term change
; Northeast Asia
; precipitation
Scopus关键词: Cluster analysis
; Digital storage
; Precipitation (chemical)
; Storms
; Tropics
; Wind effects
; Extra-tropical cyclones
; Japanese islands
; Long term change
; Northeast Asia
; Occurrence frequencies
; Precipitation anomalies
; Precipitation trends
; Tropical Western Pacific
; Hurricanes
; atmospheric moisture
; extratropical cyclone
; precipitation (climatology)
; storm track
; trend analysis
; Japan
; Korea
; Kyushu
; Mongolia
英文摘要: Springtime extra-tropical cyclones (ETCs) in Northeast Asia and the associated precipitation anomalies are examined by objectively tracking ETCs from reanalysis data. The cluster analyses reveal that Northeast Asian cyclones are largely grouped into two distinct tracks, that is, north and south tracks, depending on their pathways. The south-track ETCs typically form over southeast China and travel towards the Japanese Islands, while the north-track ETCs are first detected around Mongolia and move southeastwards to the Korean Peninsula. Unlike the latter ones, the former ones exhibit a significant negative trend in their occurrence frequency (−1.17 per decade from 1979 to 2014), explaining a negative precipitation trend over the broad regions from southeast China to the Kyushu Islands. It is argued that the reduction of the south-track ETCs is at least in part caused by the strengthened convection over the tropical western Pacific. The resulting Gill-type response in the subtropics tends to drive reduced moisture supplies to southern China, likely causing an unfavourable condition for the development of the south-track ETCs. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116824
Appears in Collections: 气候减缓与适应
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作者单位: School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea; Department of Earth Sciences, Chosun University, Gwangju, South Korea
Recommended Citation:
Cho H.-O.,Son S.-W.,Park D.-S.R.. Springtime extra-tropical cyclones in Northeast Asia and their impacts on long-term precipitation trends[J]. International Journal of Climatology,2018-01-01,38(10)