A. Laeng1, T. von Clarmann1, G. Stiller1, S. Godin-Beekmann4, I. Petropavlovskih5, E. Maillard-Barass10, R. Stubi10, U. Grabowski1, N. Glatthor1, S. Lossow1, S. Kellmann1, M. Kiefer1, A. Linden1,N. Kramarova2, D. Degenstein 11, J. Zawodny3, W. Steinbrecht7
MIPAS on board the ESA ENVISAT satellite has taken limb emission measurements of ozone profiles from June 2002 to April 2012.The SAGE II instrument performed solar occultation measurements of ozone number densities from 1984–2005 and has been used in many studies of long-term ozone trends. The OMPS LP instrument, launched in October 2011 and currently operating, measures solar radiances scattered from atmospheric limb in the UV and visible spectral ranges.
This information is used to merge the three ozone records, SAGE II, MIPAS and OMPS, into a single ozone record from 1984 to the present. Ozonesondes and Umkehr are used as transfer standard instruments. Ozone piecewise linear trends are derived by multivariate regression from obtained 30-years long ozone record. The comparison with trends from two of three parent datasets and the standard transfer instrument will be discussed. The comparison with trends from previously merged SAGE II + OSIRIS and SAGE II + GOMOS datasets will be presented. The trends obtained will be compared with trends calculated on satellite overpasses over ground stations providing ozone measurements by ozonesondes, lidars, microwave radiometers and lidars.