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Large ozone losses in Antarctica: The role of heating perturbations
Author(s) -
Pyle J. A.
Publication year - 1986
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl013i012p01320
Subject(s) - polar vortex , ozone , polar , atmospheric sciences , ozone depletion , ozone layer , southern hemisphere , environmental science , climatology , northern hemisphere , latitude , vortex , middle latitudes , stratosphere , general circulation model , geology , meteorology , oceanography , physics , climate change , geodesy , astronomy
Using a two‐dimensional circulation model the possible influence on the polar ozone column of modifications to lower stratospheric heating rates, both within the polar vortex and in middle latitudes, has been examined. Using reasonable heating rates it is not possible to change the model ozone to reproduce observed ozone losses in Antarctica. If an additional model heating is introduced at, or just before, the end of the southern hemisphere polar night, the time scales are such that appreciable ozone changes do not occur for at least three months.