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ADAlgorithm Document PSDProduct Specification Document AvData Availability CProduct Content
NO2 vertical column ESA
Aug 2002 to April 2012 *)  v3.01
IFE/IUP Bremen
Aug 2002 to April 2012 *)    p. valid.
KNMI/BIRA
Jan 2003 to April 2012   validated
NO2 slant column BIRA-IASB
Jan 2003 to April 2012 *)    validated
Dalhousie/SAO
Jan 2003 to April 2012      
NO2 tropospheric column IFE/IUP Bremen
Aug 2002 to end *)    validated
KNMI/BIRA
Jan 2003 to end   validated
Dalhousie/SAO
Jan 2003 to end    
MPI Mainz/IUP Heidelberg
2003 to 2011     demonst.
NO2 profile IFE/IUP Bremen
Sep 2002 to April 2012 *)   
ESA
Aug 2002 to April 2012 *)    v3.01
MPI Mainz/IUP Heidelberg
Sep 2002 to April 2012 *)     
Environment Canada
on request   p. valid.
*): some restrictions on data use, see product details (click on institute)
NO2 vertical column by ESA (last update: 16 May 2011)
validation summary Over areas with low tropospheric NO2 content, SCIAMACHY OL 3.01 NO2 columns agree with GOME GDP 4.1 and NDACC/UVVIS measurements to a few 1014 molec/cm2. The estimated accuracy ranges from 5% to 20% at polar latitudes and in the Northern Hemisphere. The NO2 columns are low biased by about 5.1014 molec/cm2 at low and middle latitudes of the Southern Hemisphere. This low bias exhibits a seasonal cycle (larger in summer) and a latitudinal dependence. The NO2 columns are affected by larger errors over polluted areas (large underestimation) and in the South Atlantic Anomaly (noisier data).
available data Data from August 2002 to April 2012 processed with OL version 5.02 can be ordered via the ESA EO Principal Investigator Portal. Currently data are being reprocessed with the updated OL 5.01.
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 is described in the Envisat Products Specification Document. Lists of known issues are described in the OL product disclaimer and the NRT product disclaimer


SCIAMACHY NO2 vertical column (ESA) validation literature:

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