Baltic Sea


Total absorption coefficient

Atmospheric path radiance in band 2


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Site2: BalticSea

Baltic Sea

 Site 2 in Google Earth 

 Download the sample products:
 L1P (715MB)
L2R (732MB)
L2W (1137MB)


L1P (130MB)  

Standard products
Experimental products
Responsible partner
  • Formazin Nepholometric Units
  • Primary Productivity or Potential Primary Productivity
  • Phytoplankton Biomass estimates in gC m-3 or gC m-2 units
  • Concentrations of some taxonomic of functional groups such as Coccolithophorides, Cyanobacteria etc.

The Baltic Sea is characterized by a low salinity with a gradient from the Baltic Proper with > 20 to nearly fresh water conditions in the northern part. Thus, the changing refractive index has to be taken into account, when the Fresnel reflection is computed. Another characteristic is the high concentration of humic matter (Gelbstoff, yellow substance), with an inverse gradient from north to south, which is correlated with salinity (Hojerslev, 1996). The third important factor is cyanobacteria, which may occur during the summer season in massive concentrations at the surface. In such cases the atmospheric correction will fail and a special algorithm has to be applied. Furthermore, the volume relationship of a concentration unit becomes meaningless because the vertical structure is not known.