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MERIS level 3 products - 9 km - sinusoidal grid: History of changes
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MERIS Level3 demonstration products

MerisLevel3Animated
  • MERIS level 2 products have been processed with MEGS 7.4 and IPF version 5 and higher
  • MERIS level 3 products are referenced on a 9 km global sinusoidal grid

Specific information concerning the MGVI level-3 products:

Specific information concerning all other MERIS level-3 products:

  • The products are also generated daily on a 4.6 km resolution grid a few days after acquisition. Please access the yearly repositories from the table below (in green), or via
    http://envisat.esa.int/ml3/
    Data are to be found under the subdirectories:
    <type>/<year>/daily
  • MERIS level 3 products have been generated on G-POD using MKL3 3.0 (Acri) and BEAM-L3 3.3 (Brockmann-Consult)
  • Products format and algorithm description (PDF file).
  • A specific netCDF-ASCII conversion tool "l3_nc_dump" is available (linux binary and source code)
  • BEAM 3.6 can read the products (see here)
  • History of the modifications.

Available Products:

code Product Data available
n412 Normalised water leaving radiance at 412 nm (n412)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
n443 Normalised water leaving radiance at 443 nm (n443)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
n490 Normalised water leaving radiance at 490 nm (n490)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
n510 Normalised water leaving radiance at 510 nm (n510)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
n560 Normalised water leaving radiance at 560 nm (n560)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
chl1 Chlorophyll-a, case-1 water (chl1)
Description
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
t865 Aerosols optical thickness over water at 865 nm (t865)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
a865 Angstrom alpha coefficient over water at 865 nm (a865)
Description
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
t443 Aerosols optical thickness over land at 443 nm (t443)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
a443 Angstrom alpha coefficient over land (a443)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
t550 Aerosols optical thickness over land and water at 550 nm (t550)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
a550 Angstrom alpha coefficient over land and water at 550 nm (a550)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
t865 Aerosols optical thickness over water at 865 nm (t865)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
wvcs Total water vapor column, clear sky (wvcs)
Description, Validation
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
absd ABSOA_DUST flag statistics (absd)
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Daily: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
mgvi MERIS Global Vegetation Index
Description, Validation
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
mgvi-plc MERIS Global Vegetation Index/Plate-Carree
Monthly: 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012