We discuss the results obtained on Station A6 on 2005-04-13. UV and visible irradiance at surface are shown in Fig.19, while Fig.20 presents the irradiance profiles in water. Since the PAR profile evidenced a stratification in the water column, an unique exponential function was not found. To overcome this, we studied the attenuation coefficient every 10m down to 60m depth. Between 60 and 80 m depth we were able to define a single decreasing exponential function to represent the radiative transfer along the water column.
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Fig.22 presents the spectral irradiance in the water column. figure