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O3 vertical column ESA
August 2002 to April 2012 *)  v5.01
KNMI
August 2002 to April 2012 validated
O3 profile IFE/IUP Bremen
September 2002 to April 2012 *)    v1.63: p. valid.
ESA
August 2002 to April 2012 *)    v5.01
*): some restrictions on data use, see product details (click on institute)
O3 vertical column by ESA (last update: 16 May 2011)
validation summary SCIAMACHY OL v3.01 and v5.01 O3 column data are consistent with GAW ground-based data records. There are slight differences between the two versions, usually in the form of a bias < 0.6%. Drifts noticed with version 3.01 at numerous but not all stations persist with version 5.01. Uncertainties increase at large SZA and at low Total Column O3. The introduction of the degradation correction improves on the drift in the tropics, but not on mid to high latitudes and is it questioned whether such a zonally structured is preferred over a zonally more homogeneous trend.
available data Data from August 2002 to April 2012 processed with OL 5.02 can be ordered via the ESA EO Principal Investigator Portal. Currently data are being reprocessed with the updated OL 5.02.
point of contact ESA EO helpdesk
algorithm description The Algorithm Theoretical Baseline Document for OL Version 5 can be found here
product details The product format specification is described in the Envisat Products Specification Document. Lists of known issues are described in the OL product disclaimer and the NRT product disclaimer


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