From the VITO team in Belgium:
It is with great pleasure that we announce a new free product in the world of low resolution Earth observation data, the global Envisat-MERIS 10-daily composites at 1 km resolution (EM10).
All information on the EM10 product can be found on the website (meriss10.vgt.vito.be). Today, you can find products from January 2010 till March 2012 in the catalogue; meanwhile we are backprocessing all previous years (2002-2012).
The EM10 products are available free of charge for non-commercial use and can be downloaded via the on-line catalogue.