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Global average ozone change from November 1978 to May 1990A recent recalibration and reprocessing of the total ozone mapping spectrometer (TOMS) data have made possible a new determination of the global average total ozone decrease of 3.5 percent over the 11-year period, January 1, 1979, to December 31, 1989, with a 2 sigma error of 1.4 percent. The revised TOMS ozone trend data are in agreement, within error limits, with the average of 39 ground-based Dobson stations and with the world standard Dobson spectrometer 83 at Mauna Loa, Hawaii. Superimposed on the 11-year ozone trend is a possible solar cycle effect, quasi-biennial oscillation (QBO), annual, and semiannual cycles. Using solar 10-7-cm flux data and 30-mbar Singapore wind data (QBO), a time series has been constructed that reproduces the long-term behavior of the globally averaged ozone. Removal of the apparent solar cycle effect from the global average reduces the net ozone loss to 2.66 + or - 1.4 percent per decade. The precise value of the global average ozone trend depends on the latitude range selected, with ranges greater than + or - 69 emphasizing the larger variations at high latitudes.
Document ID
19910069790
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Herman, J. R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mcpeters, R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stolarki, R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Larko, D.
(ST Systems Corp. Lanham, MD, United States)
Hudson, R.
(Maryland, University College Park, United States)
Date Acquired
August 14, 2013
Publication Date
September 20, 1991
Publication Information
Publication: Journal of Geophysical Research
Volume: 96
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
91A54413
Distribution Limits
Public
Copyright
Other

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