I want to determine light intensity profiles at different depths (down to 1000m) in the North Atlantic ocean. Is there any databases which provide this information ready available?
Direct observation of light intensity are quite sporadic.
If you know water properties you can calculate the light intensity. Jerlov (1968) introduced a classification of water bodies based on their spectral optical attenuation depth. Basically you should know classification (according Jerlov or similar) of the water body you are investigating, light intensity at the ocean surface (you can retrive this from several sources, most of them are numerical weather models) and apply an exponential or bi-exponential law.
Dear Peter,
You may find other indications in Paulson and Simpson (1977) JPO 7, 952-956 and in Prieur and Legendre (1988) in "Toward a theory on biological-Physical interactions of the world ocean" (Elsevier, New-York). But the best for you is the climatology of mean optuical properties of Simonot and Letreut (1986), JGR, 91, 6642-6646 that will provide you the Jerlov's coefficients for the North Atlantic basin
Best
G.C.
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