Total ozone decrease at South Pole, Antarctica, 1964-1985

Details Total ozone decrease at South Pole, Antarctica, 1964-1985 Total ozone decrease at South Pole, Antarctica, 1964-1985

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13.1248k&link_type=abstract

Geophysical Research Letters (Supplement) (ISSN 0094-8276), vol. 13, Nov. 1986, p. 1248-1251.

Physics

26

Abundance, Antarctic Regions, Depletion, Annual Variations, Atmospheric Circulation, Atmospheric Heating, Stratosphere, Stratospheric Warming

Scientific paper

Mean monthly total ozone data obtained at South Pole, Antarctica, during 1964-1985 are presented. Preliminary analysis of the data suggests that total ozone has decreased at South Pole by roughly 20 percent since the mid-1960's. Largest decreases have occurred during October and November months, but autumn and winter months also exhibit a decrease. During February months, ozone has increased slightly. Superimposed on the long-term downward ozone trend are episodic decreases in ozone dating back to 1965 that have occurred at intervals of 4-6 years. These decreases are shown to be related to delays in stratospheric warmings in Antarctica and the transport of ozone into Antarctica each spring.

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