QA4ECV NO₂ ECV precursor

A joint product by: KNMI, BIRA-IASB, University of Bremen, MPI-C, and Wageningen University


The QA4ECV NO₂ Essential Climate Variable precursor product contains harmonized vertical NO₂ columns for the period 1995-2017. The dataset contains three products: (1) the tropospheric vertical column density, (2) the stratospheric vertical column density, and (3) the total vertical column density. The NO₂ ECV precursor data will provide geophysical information for each and every ground pixel observed by GOME, SCIAMACHY, OMI, and GOME-2(A), without the additional binning, averaging or gridding typically applied for Level 3 data. In addition to vertical NO₂ columns, the product contains intermediate results, such as the result of the spectral fit, fitting diagnostics, the averaging kernel, cloud information, and algorithm and product error estimates.

Documents Data Access Traceability Chain NO₂ ECV Forum

Clicking on Data Access (dark blue button) takes you to version 1.1 NO₂ data derived from satellite observations from OMI (available for 2004-2017), from GOME-2(A) (2007-2016), from SCIAMACHY (2002-2012), and from GOME (1995-2003).
By clicking on the Traceability Chain you will find specific information on how the NO₂ ECV precursor is retrieved.
Do you have questions on how the satellite NO₂ data is produced, how good it is, or how useful for your application? Then please post your questions or comments on this NO₂ ECV Forum.