| DOI: | 10.1007/s00382-017-3877-5
|
| Scopus记录号: | 2-s2.0-85028556474
|
| 论文题名: | Annual and seasonal tornado activity in the United States and the global wind oscillation |
| 作者: | Moore T.W.
|
| 刊名: | Climate Dynamics
|
| ISSN: | 9307575
|
| 出版年: | 2018
|
| 卷: | 50, 期:2018-11-12 | | 起始页码: | 4323
|
| 结束页码: | 4334
|
| 语种: | 英语
|
| 英文关键词: | Atmospheric angular momentum
; Global wind oscillation
; Tornado variability
; United States
|
| Scopus关键词: | angular momentum
; oscillation
; seasonal variation
; teleconnection
; time series analysis
; tornado
; wind field
; United States
|
| 英文摘要: | Previous studies have searched for relationships between tornado activity and atmospheric teleconnections to provide insight on the relationship between tornadoes, their environments, and larger scale patterns in the climate system. Knowledge of these relationships is practical because it can improve seasonal and sub-seasonal predictions of tornado probability and, therefore, help mitigate tornado-related losses. This study explores the relationships between the annual and seasonal tornado activity in the United States and the Global Wind Oscillation. Time series herein show that phases of the Global Wind Oscillation, and atmospheric angular momentum anomalies, vary over a period of roughly 20–25 years. Rank correlations indicate that tornado activity is weakly correlated with phases 2, 3, and 4 (positive) and 6, 7, and 8 (negative) of the Global Wind Oscillation in winter, spring, and fall. The correlation is not as clear in summer or at the annual scale. Non-parametric Mann–Whitney U tests indicate that winters and springs with more phase 2, 3, and 4 and fewer phase 6, 7, and 8 days tend to have more tornadoes. Lastly, logistic regression models indicate that winters and springs with more phase 2, 3, and 4 days have greater likelihoods of having more than normal tornado activity. Combined, these analyses suggest that seasons with more low atmospheric angular momentum days, or phase 2, 3, and 4 days, tend to have greater tornado activity than those with fewer days, and that this relationship is most evident in winter and spring. © 2017, Springer-Verlag GmbH Germany. |
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/109292
|
| Appears in Collections: | 影响、适应和脆弱性
气候变化事实与影响
|
|
There are no files associated with this item.
|
|
作者单位: | Department of Geography and Environmental Planning, Towson University, 8000 York Road, Towson, MD 21252, United States
|
| Recommended Citation: | |
Moore T.W.. Annual and seasonal tornado activity in the United States and the global wind oscillation[J]. Climate Dynamics,2018-01-01,50(2018-11-12)
|
|
|