Possible influence of long-term sea surface temperature anomalies in the tropical Pacific on global ozone

Details Possible influence of long-term sea surface temperature anomalies in the tropical Pacific on global ozone Possible influence of long-term sea surface temperature anomalies in the tropical Pacific on global ozone

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991cajph..69.1093k&link_type=abstract

Canadian Journal of Physics (ISSN 0008-4204), vol. 69, Aug.-Sept. 1991, p. 1093-1102.

Physics

7

Ozone, Pacific Ocean, Sea Surface Temperature, Tropical Regions, Atmospheric Circulation, Long Term Effects, Stratosphere

Scientific paper

Observations are reviewed which suggest the downward trend in ozone observed over the globe in recent years may have been at least partially meteorologically induced, possibly through modulation by the warmer tropical Pacific ocean waters of quasi-biennial oscillation (QBO) easterly winds at the equator, of planetary waves in the extratropics, of the interaction of QBO winds and planetary waves, and of Hadley Cell circulation. A cursory analysis of geostrophic wind flow around the Baffin Island low suggests a meteorological influence on the observed downward trend in ozone over North America during the past decade. Because ozone has a lifetime that varies from minutes to hours in the primary ozone production region at high altitudes in the tropical stratosphere to months and years in the low stratosphere, changes in atmospheric dynamics have the potential for not only redistributing ozone over the globe, but also changing global ozone abundance.

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