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A frequency domain analysis of trends in Dobson total ozone records

1983; American Geophysical Union; Volume: 88; Issue: C13 Linguagem: Inglês

10.1029/jc088ic13p08512

2156-2202

Peter Bloomfield, Gary W. Oehlert, Mary Lou Thompson, Scott L. Zeger,

Atmospheric chemistry and aerosols

A frequency domain statistical model for the Dobson total column ozone data is introduced. This model extends variance‐components analysis to the time series case and incorporates both temporal and spatial association found in the ozone data. A key feature of this model is the inclusion of a common global term representing natural global variations in ozone. The model is used to estimate global trends in ozone possibly related to the release of man‐made chlorofluorocarbons and other factors. We assess the ability of models to detect trends, given the current ozone data base.