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Mesoscale analysis of transport across the subtropical tropopause

Abstract : An airborne ozone lidar has been operated on March 26 and 27, 1999 in order to document the ozone distribution near the subtropical jet (STJ) in the 5°W–15°W longitude band which corresponds to an area where the STJ accelerates and interacts strongly with mid-latitude cyclones. The two main features observed are a tropopause fold in the region where the STJ accelerates and an intrusion of subtropical tropospheric air into the mid-latitude lower stratosphere. A mesoscale meteorological model is applied with high vertical resolution in order to study the strong layering in the upper troposphere and lower stratosphere.
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Johanna Kowol-Santen, Gérard Ancellet. Mesoscale analysis of transport across the subtropical tropopause. Geophysical Research Letters, American Geophysical Union, 2000, 27 (20), pp.3345 - 3348. ⟨10.1029/2000GL011369⟩. ⟨insu-01411571⟩



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