Physics
Scientific paper
Feb 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3803806t&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 3, CiteID L03806
Physics
3
Atmospheric Processes: Stratosphere/Troposphere Interactions, Atmospheric Processes: Convective Processes, Atmospheric Composition And Structure: Troposphere: Composition And Chemistry, Atmospheric Composition And Structure: Middle Atmosphere: Constituent Transport And Chemistry (3334)
Scientific paper
We study the mechanisms driving stratosphere-troposphere exchange of ozone fluxes within a chemistry-transport model. For years 2004-2006, year-round, most of the stratosphere-to-troposphere flux of O3 is associated with shear and folding around the subtropical jet, and this jet-related flux peaks for the northern hemisphere in May. Over the northern mid-latitude continents, however, surface convection penetrates to stratospheric levels of O3 (250 ppb), enhancing the O3 flux by 19% of the northern hemisphere total, and shifting the peak flux to June. This convection-related O3 flux represents 49% of the total over northern mid-latitudes in June.
Hsu Justin
Prather Michael J.
Tang Qihe
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