globalchange  > 科学计划与规划
DOI: 10.1002/2014GL062826
论文题名:
Central American biomass burning smoke can increase tornado severity in the U.S.
作者: Saide P.E.; Spak S.N.; Pierce R.B.; Otkin J.A.; Schaack T.K.; Heidinger A.K.; Da Silva A.M.; Kacenelenbogen M.; Redemann J.; Carmichael G.R.
刊名: Geophysical Research Letters
ISSN: 0094-8973
EISSN: 1944-8704
出版年: 2015
卷: 42, 期:3
起始页码: 956
结束页码: 965
语种: 英语
英文关键词: aerosol-cloud radiation interactions ; AOD data assimilation ; GSI ; severe weather prediction ; smoke ; WRF-Chem
Scopus关键词: Aerosols ; Forecasting ; Radiation effects ; Shear flow ; Smoke ; Storms ; Tornadoes ; Aerosol clouds ; Data assimilation ; GSI ; Severe weather ; WRF-Chem ; Weather forecasting ; aerosol composition ; biomass burning ; climate prediction ; cloud radiative forcing ; data assimilation ; smoke ; spatiotemporal analysis ; thunderstorm ; tornado ; Central America ; United States
英文摘要: Tornadoes in the Southeast and central U.S. are episodically accompanied by smoke from biomass burning in central America. Analysis of the 27 April 2011 historical tornado outbreak shows that adding smoke to an environment already conducive to severe thunderstorm development can increase the likelihood of significant tornado occurrence. Numerical experiments indicate that the presence of smoke during this event leads to optical thickening of shallow clouds while soot within the smoke enhances the capping inversion through radiation absorption. The smoke effects are consistent with measurements of clouds and radiation before and during the outbreak. These effects result in lower cloud bases and stronger low-level wind shear in the warm sector of the extratropical cyclone generating the outbreak, two indicators of higher probability of tornadogenesis and tornado intensity and longevity. These mechanisms may contribute to tornado modulation by aerosols, highlighting the need to consider aerosol feedbacks in numerical severe weather forecasting. © 2015 The Authors.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925144120&doi=10.1002%2f2014GL062826&partnerID=40&md5=e2141355dab9ed9231a146d2d2a2fc4c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8589
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Center for Global and Regional Environmental Research, University of Iowa, Iowa City, IA, United States

Recommended Citation:
Saide P.E.,Spak S.N.,Pierce R.B.,et al. Central American biomass burning smoke can increase tornado severity in the U.S.[J]. Geophysical Research Letters,2015-01-01,42(3).
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