How can the overestimated values of Q*a 675 (pigment package index) be corrected? Are there any region specific corrections?

28 October 2020 0 6K Report

I've come across several papers explaining the reasons for overestimation of Q*a 675 (beyond 1), one being the uncertainties associated with the path length amplification factor. How can the causes of such overestimation be identified? Are there any region-specific corrections that need to be applied to a dataset to evaluate the package effect (apart from the a*ph-chlorophyll relationship)? I would be interested in knowing more about these equations/correction factor for the Antarctic waters.

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