Observations of reduced ozone concentrations in the tropical stratosphere after the eruption of Mt. Pinatubo

Details Observations of reduced ozone concentrations in the tropical stratosphere after the eruption of Mt. Pinatubo Observations of reduced ozone concentrations in the tropical stratosphere after the eruption of Mt. Pinatubo

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19.1109g&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 19, no. 11, June 2, 1992, p. 1109-1112.

Physics

49

Effusives, Environment Effects, Ozone Depletion, Stratosphere, Tropical Regions, Aerosols, Air Pollution, Sulfur Dioxides, Volcanoes

Scientific paper

Two independent sets of data, one of aerosols from an airborne lidar system, and one of ozone from ozonesonde measurements indicate that significant ozone decreases may have happened as a result of the injection of debris by the Mt. Pinatubo volcano in June 1991. The amount of this reduction maximizes at 24-25 km, near the peak of the aerosol distribution, though a deficit is seen throughout the lower stratosphere between 19 and 28 km. The greatest differences observed prior and subsequent to the eruptions at these altitudes is 18-20 percent.

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