globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL061921
Thunderstorms enhance tropospheric ozone by wrapping and shedding stratospheric air
Author: Pan L.L.; Homeyer C.R.; Honomichl S.; Ridley B.A.; Weisman M.; Barth M.C.; Hair J.W.; Fenn M.A.; Butler C.; Diskin G.S.; Crawford J.H.; Ryerson T.B.; Pollack I.; Peischl J.; Huntrieser H.
Source Publication: Geophysical Research Letters
ISSN: 0094-9573
EISSN: 1944-9304
Publishing Year: 2014
Volume: 41, Issue:22
pages begin: 7785
pages end: 7790
Language: 英语
Keyword: convective transport ; stratosphere-troposphere exchange ; tropospheric ozone
Scopus Keyword: Budget control ; Climate models ; Dynamics ; Ozone ; Storms ; Brewer-Dobson circulation ; Chemistry-climate models ; Convective transport ; Mesoscale Convective System ; Photochemical production ; Stratosphere-troposphere exchange ; Tropospheric ozone ; Upper-tropospheric jet stream ; Troposphere ; jet stream ; nitrogen oxides ; numerical model ; ozone ; stratosphere ; stratosphere-troposphere interaction ; thunderstorm ; tropopause ; troposphere
English Abstract: A significant source of ozone in the troposphere is transport from the stratosphere. The stratospheric contribution has been estimated mainly using global models that attribute the transport process largely to the global-scale Brewer-Dobson circulation and synoptic-scale dynamics associated with upper tropospheric jet streams. We report observations from research aircraft that reveal additional transport of ozone-rich stratospheric air downward into the upper troposphere by a leading-line-trailing-stratiform mesoscale convective system with convection overshooting the tropopause altitude. The fine-scale transport demonstrated by these observations poses a significant challenge to global models that currently do not resolve storm-scale dynamics. Thus, the upper tropospheric ozone budget simulated by global chemistry-climate models where large-scale dynamics and photochemical production from lightning-produced NO are the controlling factors may require modification. © 2014. American Geophysical Union. All Rights Reserved.
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Document Type: 期刊论文
Appears in Collections:气候减缓与适应

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Affiliation: National Center for Atmospheric Research, Boulder, CO, United States

Recommended Citation:
Pan L.L.,Homeyer C.R.,Honomichl S.,et al. Thunderstorms enhance tropospheric ozone by wrapping and shedding stratospheric air[J]. Geophysical Research Letters,2014-01-01,41(22).
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