Depletion and Natural Variability of the Ozone Layer from TOMS Observations

30-06-1995 | Publication

A statistical trend analysis of the TOMS total ozone data was performed from November 1978 through June 1994.

The temporal dependency of the ozone column is described by the model, accounting for seasonal variation, linear anthropogenic trend, quasi-biennial oscillations (QBO), influence of the 11-year solar cycle and month-to-month correlation in ozone values. Year-round and monthly trends, QBO coefficients and solar cycle coefficients were calculated for all grid cells (1 degree latitude × 1.25 degree longitude) of the TOMS column ozone data, as well as for zonal means over 10 degrees latitudinal bands.