Data access

In the merged GOME/SCIA/GOME2 data set, the following data are included:

  • GOME (July 1995 - May 2003) without adjustments
  • SCIAMACHY (June 2003 - March 2012) with bias adjustments
  • GOME2/Metop A (March 2013 - ) with bias adjustments

ozone time series

Figure: Total ozone time series from different merged datasets. The pink line indicates the estimated ozone change due to changes in stratospheric halogen. From Weber et al. (2013).

Additional comments

The WFDOAS total algorithms are described in Coldwey-Egbers et al. (2005). Validation results have been reported by Bracher et al. (2005), Weber et al. (2005), and Fioletov et al. (2008).

There are other total ozone algorithm available for GOME's and SCIAMACHY as follows:

  • ESA/DLR operational retrieval (Roozendael et al. 2006, Balis et al., 2007, Anton et al., 2009)
  • KNMI retrieval including data assimilation (Eskes et al., 2005)

A merged data set from the ESA/DLR retrievals were reported by Loyola et al. (2009).

A description of the satellite instruments GOME, SCIAMACHY, and GOME2 can be found in Bovensmann et al. (1999), Burrows et al. (1999), and Callies et al. (2000), respectively.

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  • Anton, M., Loyola, D., Lopez, M., Vilaplana, J. M., Banon, M., Zimmer, W., and Serrano, A., Comparison of GOME-2/MetOp total ozone data with Brewer spectroradiometer data over the Iberian Peninsula, Ann. Geophys., 27, 1377-1386, 2009.
  • Balis, D., et al., Ten years of GOME/ERS2 total ozone data - The new GOME data processor (GDP) version 4: 2. Ground-based validation and comparisons with TOMS V7/V8, J. Geophys. Res., 112, D07307, doi:10.1029/2005JD006376, 2007.
  • Bracher, A., L.N. Lamsal, M. Weber, K. Bramstedt, M. Coldewey-Egbers, J. P. Burrows, Global satellite validation of SCIAMACHY O3 columns with GOME WFDOAS, Atmos. Chem. Phys. 5, 2357-2368, 2005.
  • Bovensmann H., J. P. Burrows, M. Buchwitz, J. Frerick, S. Noel, V. V. Rozanov, K. V. Chance, and A.P.H. Goede, SCIAMACHY: Mission Objectives and Measurement Modes, J. Atm. Sci., 56, 127-150, 1999.
  • Burrows, J. P., M. Weber, M. Buchwitz, V.V. Rozanov, A. Ladstädter-Weissenmayer, A. Richter, R. de Beek, R. Hoogen, K. Bramstedt, K.-U. Eichmann, M. Eisinger und D. Perner, The Global Ozone Monitoring Experiment (GOME): Mission Concept and First Scientific Results, J. Atm. Sci., 56, 151-175, 1999.
  • Callies, J. , E. Corpaccioli, M. Eisinger, A. Hahne, and A. Lefebvre, GOME-2 - METOP's second-generation sensor for operational ozone monitoring, ESA Bull., 102, 28-36, 2000.
  • Eskes, H. J., R. J. van der A, E. J. Brinksma, J. P. Veefkind, J. F. de Haan, P. J. M. Valks, Retrieval and validation of ozone columns derived from measurements of SCIAMACHY on Envisat, Atmos. Chem. Phys. Discuss., 5, 4429-4475, 2005.
  • Fioletov, V. E., G. Labow, R. Evans, E. W. Hare, U. Köhler, C. T. McElroy, K. Miyagawa, A. Redondas, V. Savastiouk, A. M. Shalamyansky, J. Staehelin, K.Vanicek, and M.Weber, The performance of the ground-based total ozone network assessed using satellite data, J. Geophys. Res., 113, D14313, doi:10.1029/2008JD009809, 2008.
  • Lerot, C., Van Roozendael, M., van Geffen, J., van Gent, J., Fayt, C., Spurr, R., Lichtenberg, G., and von Bargen, A.: Six years of total ozone column measurements from SCIAMACHY nadir observations, Atmos. Meas. Tech., 2, 87-98, 2009.
  • Loyola, D., Coldewey-Egbers, M., Dameris, M., Garny, H., Stenke, A., Van Roozendael, M., Lerot, C., Balis, D., Koukouli, M., Global long-term monitoring of the ozone layer - a prerequisite for predictions, Int. J. Remote Sens., 30, 4295-4318, 2009.
  • van Roozendael, M., Loyola, D., Spurr, R. J. D., D. Balis, J.-C. Lambert, Y. Livschitz, P. Valks, T. Ruppert, P. Kenter, C. Fayt, and C. Zehner, Ten years of GOME/ERS-2 total ozone data - The new GOME data processor (GDP) version 4: 1. Algorithm description, J. Geophys. Res., 111, D14311, doi:10.1029/2005JD006375, 2006.
  • Weber, M., L. N. Lamsal, M. Coldewey-Egbers, K. Bramstedt, J. P. Burrows, Pole-to-pole validation of GOME WFDOAS total ozone with groundbased data, Atmos. Chem. Phys. 5, 1341-1355, 2005.
  • Weber, M., W. Chehade, V. E. Fioletov, S. M. Frith, C. S. Long, W. Steinbrecht, J. D. Wild, [Global Climate] Stratospheric Ozone [in State of the Climate in 2012], Bull. Amer. Meteor. Soc., 94, S36-S37, 2013.

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If you have any questions, need more information, or have a request for specific data sets, please contact Mark.Weber@uni-bremen.de.

last change: 2013/11/28   Author: Mark Weber
Institute of Environmental Physics, University of Bremen