The close relation between Antarctic total-ozone depletion and cooling of the Antarctic low stratosphere

Details The close relation between Antarctic total-ozone depletion and cooling of the Antarctic low stratosphere The close relation between Antarctic total-ozone depletion and cooling of the Antarctic low stratosphere

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13.1240a&link_type=abstract

Geophysical Research Letters (Supplement) (ISSN 0094-8276), vol. 13, Nov. 1986, p. 1240-1243.

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22

Antarctic Regions, Atmospheric Temperature, Ozone, Ozone Depletion, Stratosphere, Annual Variations, Autumn, Cooling, Data Correlation

Scientific paper

Nearly 5500 mean-monthly low-stratospheric temperatures at 100, 50 and 30 mb at 16 Antarctic stations have been extracted from 'Monthly Climatic Data for the World' for the interval 1958-1985. About 450 mean-monthly total-ozone values at four Antarctic stations have been extracted from 'Ozone Data for the World' for the same interval. There has been an impressive in-phase relation between seasonal variations in low-stratospheric temperature and total ozone in Antarctica. This relation extends not only to the large total-ozone and low-stratospheric temperature decreases since 1978 in the Southern Hemisphere spring (approximately 30 percent and 6-8 C, respectively, based on smoothed data), but also to relatively minor fluctuations in this and other seasons. The springtime stratospheric temperature decreases since 1978 are indicated to have been greatest along the Antarctic coast between about 30 deg W and 60 deg E, including the stations of Halley Bay and Syowa; there has been practically no low-stratospheric temperature decrease at stations 10 degrees of latitude further north on the Antarctic Peninsula. The springtime temperature decrease has been pretty much confined to the Antarctic stratosphere, or to levels about 300 mb.

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