What is the difference between “Atmospheric correction filter” and “L2A data source”

Home > Frequently Asked Questions > What is the difference between “Atmospheric correction filter” and “L2A data source”

We have developed, only for Sentinel-2 data, run-time optimised statistical version of atmospheric correction. It is based on Sen2Cor technology, but uses anchor tiles and is not as accurate as the official Sen2Cor run on individual tiles.
With ESA starting to distribute L2A data form end of March 2017, you now have three options:

  • you can use “statistical run-time optimised atmospheric correction” worldwide for all data by setting  ATMFILTER=ATMCOR or configuring the layer in WMS Configurator
  • you can select L2A datasource in WMS Configurator and access official L2A data (currently available in wider Europe from 28th of March 2017 onward)
  • you can contact us for on-demand L2A generation everywhere in the world