DOI: 10.1016/j.atmosenv.2015.04.065
Scopus记录号: 2-s2.0-84929459760
论文题名: Signature of a sudden stratospheric warming in the near-ground 7Be flux
作者: Pacini A ; A ; , Usoskin I ; G ; , Mursula K ; , Echer E ; , Evangelista H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 113 起始页码: 27
结束页码: 31
语种: 英语
英文关键词: Cosmogenic isotopes
; Stratospheric-tropospheric coupling
; Sudden stratospheric warming
Scopus关键词: Troposphere
; Cosmogenic isotopes
; Ground level
; Lower stratosphere
; Model estimates
; Precipitation data
; Stratosphere-troposphere coupling
; Stratospheric aerosols
; Sudden stratospheric warming
; Isotopes
; beryllium 7
; aerosol
; beryllium isotope
; concentration (composition)
; cosmogenic radionuclide
; nuclear power plant
; stratosphere
; tracer
; troposphere
; warming
; aerosol
; Article
; Brazil
; comparative study
; greenhouse effect
; methodology
; nuclear power plant
; precipitation
; priority journal
; quantitative analysis
; stratosphere
; troposphere
; Brazil
; Rio de Janeiro [Brazil]
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: We present here an evidence that cosmogenic 7Be isotopes produced in the lower stratosphere were measured in near-ground air at Rio de Janeiro, Brazil, after the southern hemispheric Sudden Stratospheric Warming (SSW) of 2002. The analysis presented here is based on a comparison of 7Be data measured around Angra Nuclear Power Station (23°S 44°W) during the last three decades and a model estimate of the near-ground air 7Be concentration using the CRAC:7Be model of cosmogenic production together with a simplified model for atmospheric 7Be deposition that assimilates the regional precipitation data. Our results indicate that an anomalous stratosphere-troposphere coupling associated to the unique SSW of 2002 allowed stratospheric aerosols carrying 7Be to reach the ground level very quickly. This methodology points to an important use of 7Be as a quantitative tracer for stratospheric influence on near-ground air patterns. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81731
Appears in Collections: 气候变化事实与影响
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作者单位: IP and D, University of Vale do Paraíba, São José dos Campos, Brazil; ReSoLVE Center of Excellence, Department of Physics, University of Oulu, Finland; Sodankylä Geophysical Observatory, University of Oulu, Finland; DGE, National Institute for Space Research, São José dos Campos, Brazil; LARAMG, University of Rio de Janeiro State, Rio de Janeiro, Brazil
Recommended Citation:
Pacini A,A,, Usoskin I,et al. Signature of a sudden stratospheric warming in the near-ground 7Be flux[J]. Atmospheric Environment,2015-01-01,113