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Global atmospheric sampling program - Prospects for establishing a tropospheric ozone budget from commercial aircraft dataA preliminary analysis of zonally averaged, ozone concentration data obtained from commercial (GASP) aircraft between the equator and 60 deg North indicates that ozone in the upper troposphere exhibits a primary maximum during the spring, and, in middle latitudes, a secondary maximum in the summer of both 1975 and 1976. A late-fall/early-winter minimum also appears and seems consistent with previous upper air measurements. The April ozone maximum has been well documented and appears at the time when the stratospheric ozone content is greatest and cyclogenetic activity is most vigorous. However, the secondary maximum in June has not been widely observed or quoted as a unique feature. It is hypothesized that the rapid ascent of the tropopause between midspring and summer could account for the incorporation of ozone-rich, stratospheric air into the upper troposphere with a subsequent dilution during the following months. This may explain certain aspects of the annual ozone cycle in the lower troposphere which occasionally exhibit a bimodal distribution during the warm season.
Document ID
19790033831
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Falconer, P. D.
(New York, State University Albany, N.Y., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Geophysics
Accession Number
79A17844
Funding Number(s)
CONTRACT_GRANT: NSG-3138
Distribution Limits
Public
Copyright
Other

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