Secondary maxima in ozone profiles R. Lemoine Royal Meteorological Institute of Belgium, 3, Avenue Circulaire, 1180 Brussels, Belgium
Abstract. Ozone profiles from balloon soundings as well as SAGEII ozone
profiles were used to detect anomalous large ozone concentrations of
ozone in the lower stratosphere. These secondary ozone maxima are
found to be the result of differential advection of ozone-poor and
ozone-rich air associated with Rossby wave breaking events. The
frequency and intensity of secondary ozone maxima and their
geographical distribution is presented. The occurrence and amplitude
of ozone secondary maxima is connected to ozone variability and trend
at Uccle and account for a large part of the total ozone and lower
stratospheric ozone variability.
Citation: Lemoine, R.: Secondary maxima in ozone profiles, Atmos. Chem. Phys., 4, 1085-1096, doi:10.5194/acp-4-1085-2004, 2004.