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Quasi-biennial modulation of the Antarctic ozone depletionThe quasi-biennial oscillation (QBO) in total ozone and temperature has been extracted from 9 years of Total Ozone Mapping Spectrometer (TOMS) observations and National Meteorological Center (NMC) analyses. Years in which QBO-related variations in the total ozone and temperature are positive are found to correspond to years with smaller September Antarctic total ozone hole decline rates and vice versa. The QBO appears to be responsible for September decline rate deviations up to 0.4 Dobson units (DU) per day. Also, the QBO at mid-latitudes appears to be better correlated with the 30-mbar tropical QBO winds than with those at 50 mbar. Possible mechanisms that would explain these phenomena are discussed.
Document ID
19890066540
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lait, Leslie R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Schoeberl, Mark R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Newman, Paul A.
(Applied Research, Inc. Landover, MD, United States)
Date Acquired
August 14, 2013
Publication Date
August 30, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
89A53911
Distribution Limits
Public
Copyright
Other

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