Trends in Atmospheric Ozone 1957-2015

25 Pages Posted: 2 Jun 2015 Last revised: 26 Oct 2015

Date Written: May 1, 2015


A general linear model with dummy coded time intervals is proposed for the detection of short term seasonal variations and deseasonalized long term trends in atmospheric total column ozone from 1957 to 2015. Data from ground stations located in the northern mid-latitudes, the tropics, and Antarctica show seasonal cycles and long term declining trends in total ozone that differ according to latitude. The long term decline is weakest in the tropics and strongest in Antarctica. Some evidence of stabilization and recovery of ozone levels is found.

Keywords: ozone, ozone depletion, dobson spectrophotometer, ozone ground stations, total column ozone, genera linear model, dummy coding, trend analysis, deseasonalized trends, antarctic ozone hole, hydrofluorocarbons, greenhouse gases, climate change, stratosphere, troposphere, atmospheric chemistry

Suggested Citation

Munshi, Jamal, Trends in Atmospheric Ozone 1957-2015 (May 1, 2015). Available at SSRN: or

Jamal Munshi (Contact Author)

Sonoma State University ( email )

1801 East Cotati Avenue
Rohnert Park, CA 94928
United States

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