DOI: 10.1002/joc.5408
论文题名: The characteristics of extreme cold events and cold air outbreaks in the eastern United States
作者: Smith E.T. ; Sheridan S.C.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38 起始页码: e807
结束页码: e820
语种: 英语
英文关键词: climate
; cold air outbreaks
; extreme cold
; mid-latitudes
; synoptic
; United States
Scopus关键词: Climatology
; Climate
; Cold air outbreak
; Extreme cold
; Midlatitudes
; Synoptic
; United States
; Earth atmosphere
; cold air
; decadal variation
; extreme event
; midlatitude environment
; regional climate
; synoptic meteorology
; winter
; United States
英文摘要: Periods of extreme cold impact the mid-latitudes every winter. Depending on the magnitude and duration of the occurrence, extremely cold periods may be deemed cold air outbreaks (CAOs). A systematic CAO index and ranking system was developed from 20 surface weather stations from 1948 through 2016, based on a set of criteria concerning magnitude, duration, and spatial extent. Standard deviations in temperature were used to identify extreme temperatures relative to the station. A total of 49 CAOs occurred during the 67-year period, with the majority occurring during mid-winter. The number of CAOs proved to be largely dependent on the stations latitude and maritime influence. The duration, magnitude, and spatial extent were dependent on the time of the winter season in which the CAO occurred. Furthermore, two prominent clusters of an increased number of CAOs occurred during the 67-year period, suggesting multi-decadal circulations may be a factor in CAOs. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116989
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geography, Kent State UniversityOH, United States
Recommended Citation:
Smith E.T.,Sheridan S.C.. The characteristics of extreme cold events and cold air outbreaks in the eastern United States[J]. International Journal of Climatology,2018-01-01,38