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Ozone laminae inside the Antarctic vortex produced by poleward filaments
Author(s) -
Moustaoui M.,
Teitelbaum H.,
Valero F. P. J.
Publication year - 2003
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1256/qj.03.19
Subject(s) - vortex , barotropic fluid , ozone , atmospheric sciences , protein filament , stratosphere , geology , polar vortex , circulation (fluid dynamics) , depth sounding , mixing (physics) , climatology , geophysics , environmental science , meteorology , oceanography , physics , chemistry , mechanics , quantum mechanics , biochemistry
Ozone soundings made inside the Antarctic ozone hole exhibit localized ozone increases within thin layers in the lower stratosphere. These structures, called laminae, are explained as poleward filaments emerging from the vortex edge and transporting relatively ozone‐rich air into levels above the geographical site where the sounding equipment has been launched. It is shown that the interior of the Antarctic vortex is not completely isolated with respect to the poleward air mixing. Filament development follows the occurrence of inward breaking near the vortex edge in a region where isentropes are locally uplifted. It is shown that the circulation associated with such uplift may produce the poleward breaking. The role of that circulation is supported by simple barotropic simulations where development of a poleward filament is reproduced in a realistic circular undisturbed vortex. Copyright © 2003 Royal Meteorological Society