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Total ozone decrease at South Pole, Antarctica, 1964‐1985
Author(s) -
Komhyr W. D.,
Grass R. D.,
Leonard R. K.
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/gl013i012p01248
Subject(s) - ozone , atmospheric sciences , ozone depletion , climatology , environmental science , ozone layer , spring (device) , stratosphere , geology , meteorology , geography , physics , thermodynamics
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% 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.