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Northern middle-latitude ozone profile features and trends observed by SBUV and Umkehr, 1979-1990A comparison of Umkehr ozone profile data with the reprocessed solar backscatter ultraviolet (SBUV) ozone data in the northern middle-latitude region, 30 deg to 50 deg N, is reported. Although significant biases exist between the two types of observations, the long-term variations and least squares linear regression trends agree remarkably well over the comparison period of 1979 to 1990. The ozone trend in the upper stratosphere is of the order of -0.9%/yr. Near 25 km, little if any trend appears, but a larger negative trend is seen in the lower stratosphere near 15 km. Comparisons show that the average annual ozone cycles in the profiles also agree well. The upper stratospheric ozone results are consistent with photochemical model predictions of ozone depletion near 40 km that are due to the release of anthropogenically produced chlorofluorocarbons. The lower stratospheric ozone trend results are in reasonable agreement with published ozonesonde data trends. It is shown that the ozone trends in the lower stratospheric layers impact significantly on the total ozone trend of the order of -0.47%/yr. The good agreement now seen between the two types of observations suggest that the combined ground-based and satellite approach could provide a valuable database for long-term monitoring of stratospheric ozone for trends and extraordinary variations.
Document ID
19950052946
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Deluisi, J. J.
(National Oceanic and Atmospheric Administration, Boulder, CO United States)
Mateer, C. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Theisen, D.
(Colorado State Univ. Fort Collins, CO, United States)
Bhartia, P. K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Longenecker, D.
(Colorado Univ. Boulder, CO, United States)
Chu, B.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
September 20, 1994
Publication Information
Publication: Journal of Geophysical Research
Volume: 99
Issue: D9
ISSN: 0148-0227
Subject Category
Environment Pollution
Accession Number
95A84545
Distribution Limits
Public
Copyright
Other

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