DOI: 10.1175/JCLI-D-15-0274.1
Scopus记录号: 2-s2.0-84964841142
论文题名: Winter weather regimes in the northeast United States
作者: Roller C.D. ; Qian J.-H. ; Agel L. ; Barlow M. ; Moron V.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期: 8 起始页码: 2963
结束页码: 2980
语种: 英语
Scopus关键词: Atmospheric pressure
; Classification (of information)
; Cluster analysis
; Lakes
; Precipitation (chemical)
; Storms
; Climate classification/regimes
; Extreme events
; Seasonal variability
; Statistical techniques
; Variability
; Winter/cool seasons
; Precipitation (meteorology)
; classification
; extreme event
; meteorology
; North Atlantic Oscillation
; precipitation (climatology)
; seasonal variation
; winter
; Atlantic Coast [North America]
; Atlantic Coast [United States]
; Canada
; United States
英文摘要: The method of k-means cluster analysis is applied to U.S. wintertime daily 850-hPa winds across the Northeast. The resulting weather patterns are analyzed in terms of duration, station, gridded precipitation, storm tracks, and climate teleconnections. Five distinct weather patterns are identified. Weather type (WT) 1 is characterized by a ridge over the western Atlantic and positive precipitation anomalies as far north as the Great Lakes; WT2, by a trough along the eastern United States and positive precipitation anomalies into southern New England; WT3, by a trough over the western Atlantic and negative precipitation anomalies along much of the U.S. East Coast; WT4, by a trough east of Newfoundland and negative precipitation anomalies along parts of the U.S. East Coast; and WT5, by a broad, shallow trough over southeastern Canada and negative precipitation anomalies over the entire U.S. East Coast. WT5 and WT1 are the most persistent, while WT2 typically progresses quickly to WT3 and then to WT4. Based on mean station precipitation in the northeastern United States, most precipitation occurs in WT2 and WT3, with the least in WT1 and WT4. Extreme precipitation occurs most frequently in WT2. Storm tracks show that WT2 and WT3 are associated with coastal storms, while WT2 is also associated with Great Lakes storms. Teleconnections are linked with a change in WT frequency by more than a factor of 2 in several cases: for the North Atlantic Oscillation (NAO) in WT1 and WT4 and for the Pacific-North American (PNA) pattern in WT1 and WT3. © 2016 American Meteorological Society. 资助项目: NASA, National Aeronautics and Space Administration
; NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49993
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Environmental, Earth, and Atmospheric Sciences, University of Massachusetts Lowell, Lowell, MA, United States; Intercampus Marine Science Graduate Program, University of Massachusetts Lowell, Lowell, MA, United States; Climate Change Initiative, University of Massachusetts Lowell, Lowell, MA, United States; Aix-Marseille University, CEREGE, UM 34 CNRS, Aix en Province, France
Recommended Citation:
Roller C.D.,Qian J.-H.,Agel L.,et al. Winter weather regimes in the northeast United States[J]. Journal of Climate,2016-01-01,29(8)