Reexamination of the relation between depth of the Antarctic ozone hole, and equatorial QBO and SST, 1962-1992

Details Reexamination of the relation between depth of the Antarctic ozone hole, and equatorial QBO and SST, 1962-1992 Reexamination of the relation between depth of the Antarctic ozone hole, and equatorial QBO and SST, 1962-1992

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20.1559a&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 15, p. 1559-1562.

Physics

2

Annual Variations, Atmospheric Temperature, Ozone Depletion, Sea Surface Temperature, Antarctic Regions, Atmospheric Circulation, El Nino

Scientific paper

Dobson total-ozone data at the South Pole, Singapore 50-mb zonal wind, and average SST in the El Nino region 12 S-2 N, 180-90 W are used to reexamine the relation between depth of the Antarctic ozone hole and equatorial quasi-biennial oscillation (QBO) and SST. During this interval the correlation between October-November values of South Pole total ozone, and south polar 100-mb temperature from radiosondes, is 0.93. In 23 of 27 cases, South Pole springtime (October-November) total ozone decreased from one year to the next when the Singapore 50-mb zonal wind averaged from the east during the intervening three seasons and increased when this wind averaged from the west. The tendency for a deeper ozone hole when equatorial SST warms (El Nino) yields a relation between depth of the Antarctic ozone hole, and equatorial QBO and SST, significant at the 1-percent level only by the subjective drawing of a smooth line which separates springtime total-ozone increases and decreases from one year to the next in 24 of 25 cases with two cases on the line of separation.

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