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Reinsel 2002
Reinsel, G.C. (2002). Trend analysis of upper stratospheric Umkehr ozone data for evidence of turnaround. Geophysical Research Letters 29: doi: 10.1029/2002GL014716. issn: 0094-8276.

Recent upper stratospheric (~35--45 km) Umkehr ozone data from three high-quality stations have been examined, with residual and change-in-trend analyses performed. These data show a consistent feature of mildly positive tendency in values for the recent several years. Trend analyses of these data yield significant positive change-in-trend estimates of about 0.75% per year since 1996 relative to negative trends of about -0.55% per year existing prior to 1996, leading to a (nonsignificant) estimate of about 0.2% per year positive trend for the recent 5-year period since the 1996 change-in-trend date.

BACKGROUND DATA FILES

Abstract

Keywords
Atmospheric Composition and Structure, General or miscellaneous, Global Change, Atmosphere (0315, 0325), Atmospheric Composition and Structure, Middle atmosphere--composition and chemistry
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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