| DOI: | 10.1007/s00382-014-2277-3
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| Scopus记录号: | 2-s2.0-84932194287
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| 论文题名: | The increasing efficiency of tornado days in the United States |
| 作者: | Elsner J.B.; Elsner S.C.; Jagger T.H.
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| 刊名: | Climate Dynamics
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| ISSN: | 9307575
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| 出版年: | 2015
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| 卷: | 45, 期:2017-03-04 | | 起始页码: | 651
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| 结束页码: | 659
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| 语种: | 英语
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| 英文关键词: | Cluster
; Efficiency
; Outbreak
; Tornado
; Trends
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| 英文摘要: | The authors analyze the historical record of tornado reports in the United States and find evidence for changes in tornado climatology possibly related to global warming. They do this by examining the annual number of days with many tornadoes and the ratio of these days to days with at least one tornado and by examining the annual proportion of tornadoes occurring on days with many tornadoes. Additional evidence of a changing tornado climate is presented by considering tornadoes in geographic clusters and by analyzing the density of tornadoes within the clusters. There is a consistent decrease in the number of days with at least one tornado at the same time as an increase in the number of days with many tornadoes. These changes are interpreted as an increasing proportion of tornadoes occurring on days with many tornadoes. Coincident with these temporal changes are increases in tornado density as defined by the number of tornadoes per area. Trends are insensitive to the begin year of the analysis. The bottom line is that the risk of big tornado days featuring densely concentrated tornado outbreaks is on the rise. The results are broadly consistent with numerical modeling studies that project increases in convective energy within the tornado environment. © 2014, Springer-Verlag Berlin Heidelberg. |
| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/54061
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| Appears in Collections: | 过去全球变化的重建
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作者单位: | Florida State University, Tallahassee, FL, United States
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| Recommended Citation: | |
Elsner J.B.,Elsner S.C.,Jagger T.H.. The increasing efficiency of tornado days in the United States[J]. Climate Dynamics,2015-01-01,45(2017-03-04)
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