Record low total ozone during northern winters of 1992 and 1993

Details Record low total ozone during northern winters of 1992 and 1993 Record low total ozone during northern winters of 1992 and 1993

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20.1351b&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 13, p. 1351-1354.

Physics

64

Annual Variations, Atmospheric Temperature, Ozone Depletion, Ozonometry, Europe, Polar Regions, Stratosphere

Scientific paper

Evidence deduced from trajectories on potential temperature surfaces are presented to the effect that transport of ozone-poor air masses forced in addition by vertical motions could account for a number of record low total ozone during the northern winters of 1992 and 1993. There is also evidence that cold air, known to have excess ClO content, has moved over the sun-lighted latitudes on many occasions, when chemical ozone destruction could have been favored. These ozone deficiencies do not have similar rates of decline and did not reach even close to the extreme low values regularly observed during the Antarctic-spring ozone hole phenomena.

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