Product update:

On Thursday 3 June 2021, AC SAF / KNMI plans to upgrade its software suite that produces the operational AC SAF ozone profile and aerosol products. The upgrade is planned between 07:00 - 11:00 CET and should cause only a short delay in the delivery of products while the upgrade is ongoing.

Affected products:

Main changes in this release:

The product user manual (PUM) and the ATBD for the respective products have been updated. An example of the improvement can be seen in the figure below (corrected data on the right).

Reference: Trees, V., Wang, P., and Stammes, P.: Restoring the top-of-atmosphere reflectance during solar eclipses: a proof of concept with the UV Absorbing Aerosol Index measured by TROPOMI, Atmos. Chem. Phys. Discuss. [preprint],, in review, 2020.