The 1990 Antarctica ozone hole as observed by TOMS

Details The 1990 Antarctica ozone hole as observed by TOMS The 1990 Antarctica ozone hole as observed by TOMS

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991georl..18..661n&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 18, April 1991, p. 661-664.

Physics

14

Antarctic Regions, Ozone Depletion, Ozonometry, Total Ozone Mapping Spectrometer, Atmospheric Chemistry, Nimbus 7 Satellite, Stratosphere

Scientific paper

The 1990 Antarctic ozone hole matched the record 1987 ozone hole in depth, duration, and area. During the formation phase of the hole (August), total ozone values were the lowest yet recorded. The decline rate approximately matched the record 1987 decline and reached a minimum of 125 Dobson Units on October 4, 1990. October total ozone averages were marginally higher that 1987. As during 1987, the 1990 total ozone values within the hole slowly and steadily increased during the mid-October through November period. The ozone hole breakup was the latest yet recorded (early December), with low ozone values persisting over the pole through December, setting a record low for December average polar ozone. Temperatures were near average during the early spring, but were below normal for the late spring. Temperatures in the early spring of 1990 were substantially warmer than those observed in the early spring of 1987.

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