The 1991 Antarctic ozone hole - TOMS observations

The 1991 Antarctic springtime ozone decline, as measured by the Total Ozone Mapping Spectrometer (TOMS), was similar to those of earlier deep ozone hole years, 1987, 1989, and 1990. The minimum total ozone value was recorded on October 5, 1991 at 108 Dobson units near the South Pole. This was 8 DU l...

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Bibliographic Details
Main Authors: Krueger, Arlin, Schoeberl, Mark, Newman, Paul, Stolarski, Richard
Format: Other/Unknown Material
Language:unknown
Published: 1992
Subjects:
46
Antarctic
South Pole
Antarc*
South pole
Online Access:http://ntrs.nasa.gov/search.jsp?R=19920064806
Description
Summary:The 1991 Antarctic springtime ozone decline, as measured by the Total Ozone Mapping Spectrometer (TOMS), was similar to those of earlier deep ozone hole years, 1987, 1989, and 1990. The minimum total ozone value was recorded on October 5, 1991 at 108 Dobson units near the South Pole. This was 8 DU lower than in any of the earlier years. Four of the last five years have exhibited an extensive, deep ozone hole. The area of the hole was about the same as in 1987, 1989, and 1990. The recovery of the low total ozone values occurred in mid-November as the polar vortex broke up.

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