ACP Atmospheric Chemistry and Physics ACP 1680-7324 Copernicus GmbH Göttingen, Germany 10.5194/acp-5-2091-2005 Intercomparison of O<sub>3</sub> profiles observed by SCIAMACHY and ground based microwave instruments Palm M. 1 v. Savigny C. 1 Warneke T. 1 Velazco V. 1 Notholt J. 1 Künzi K. 1 Burrows J. 1 Schrems O. 2 Institute of Environmental Physics, University of Bremen, PO Box 330440, 28334 Bremen, Germany Alfred Wegener Institute for Polar and Marine Research, PO Box 120169, 27515 Bremerhaven, Germany 09 08 2005 5 8 2091 2098 This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://www.atmos-chem-phys.net/5/2091/2005/acp-5-2091-2005.html The full text article is available as a PDF file from http://www.atmos-chem-phys.net/5/2091/2005/acp-5-2091-2005.pdf

Ozone profiles retrieved from limb scattering measurements of the SCIAMACHY instrument based on the satellite ENVISAT are compared to ground-based low altitude resolution remote sensors. All profiles are retrieved using optimal estimation. Following the work of Rodgers and Connor (2003) the retrievals of the ground-based instruments are simulated using the SCIAMACHY retrieval. The SCIAMACHY results and the results of the ground-based microwave radiometer in Bremen and Ny &#197;lesund agree within the expected covariance of the intercomparison.