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ADAlgorithm Document PSDProduct Specification Document AvData Availability CProduct Content
O3 vertical column ESA
August 2002 to April 2012 *)  v5.01
August 2002 to April 2012 validated
O3 profile IFE/IUP Bremen
September 2002 to April 2012 *)    v1.63: p. valid.
August 2002 to April 2012 *)    v5.01
*): some restrictions on data use, see product details (click on institute)
O3 vertical column by KNMI (last update: 4 October 2018)
validation summary SCIAMACHY nadir ozone column data retrieved with TOSOMI version 2.00 from level-1 data version 7.04 have been compared to co-located ground-based observations (Brewer and Dobson) from 139 stations around the world (Van der A et al., 2015) [PDF]. This comparison covers the period 2002-2012. The mean bias is about 2% at SCIAMACHY solar zenith angles below 75°. The mean offset as compared to ground-based observations is 2.1 DU and the RMS is about 8.5 DU. The trend in TOSOMI as a result of calibration issues of the instrument not solved at present time is +0.17 DU per year since 2002.
available data Data from August 2002 to April 2012 are available. Data can be accessed via the TEMIS website.
point of contact Ronald van der A
algorithm description The algorithm is described in the Algorithm Document and in the TOSOMI algorithm version history.
product details All product details can be found in the Product Specification Document.
validation results Validation results can be found on the TEMIS website.

SCIAMACHY O3 vertical column (KNMI) validation literature:
  • The ASSET intercomparison of ozone analyses: method and first results
    Geer, A.J., W.A. Lahoz, S. Bekki, N. Bormann, Q. Errera, H. J. Eskes, D. Fonteyn, D.R. Jackson, M.N. Juckes, S. Massart, V.-H. Peuch, S. Rharmili and A. Segers
    Abstract/Article: Atmospheric Chemistry and Physics 6, 5445–5474, 2006
    Product: O3 assimilated total columns (TOSOMI) and profiles (IFE v1.6)
    Institute: KNMI & IUP/IFE
  • Extreme sunbathing: Three weeks of small total O3 columns and high UV radiation over the southern tip of South America during the 2009 Antarctic O3 hole season
    de Laat, A.T.J., R.J. van der A, M.A.F. Allaart, M. van Weele, G. C. Benitez, C. Casiccia, N. M. Paes Leme, E. Quel, J. Salvador and E. Wolfram
    Abstract/Article: Geophysical research letters, vol. 37, L14805, doi:10.1029/2010GL043699, 2010
    Product: O3 total column and UV index
    Institute: KNMI
    Method: Comparison of ground-based and satellite measurements of total O3 columns and satellite based calculations of the UVI index
  • Total ozone column derived from GOME and SCIAMACHY using KNMI retrieval algorithms: Validation against Brewer measurements at the Iberian Peninsula
    Antón, M., M. Kroon, M. López, J. M. Vilaplana, M. Bañón, R. van der A, J. P. Veefkind, P. Stammes and L. Alados-Arboledas
    Abstract/Article: J. Geophys. Res., 116, D22303, doi:10.1029/2011JD016436
    Product: O3 total column
    Institute: KNMI
    Method: comparison with Brewer
  • Extended and refined multi sensor reanalysis of total ozone for the period 1970-2012
    van der A, R.J., M.A.F. Allaart and H.J. Eskes
    Abstract/Article: Atmos. Meas. Tech. 8, 3021-3035, 2015
    Product: O3 total column
    Institute: KNMI
    Method: Validation using Brewer and Dobson ground-based observations as reference

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