Use the complex amplitude to calculate a quantity proportional to the measured irradiance.
To obtain measures of downwelling irradiance under Antarctic pack ice.
Earlier work established the potential for estimating spectral irradiance from multi-band data using a neural network technique (Milton et al., 2000 ).
Using the monthly values of F S as a proxy for solar irradiance, we were able to reconstruct solar irradiance back to 1868.
For stations at in the Irminger Basin, a model based on phytoplankton photosynthetic responses to changes in spectral irradiance was the most accurate.
