Authors
M Bellacicco, G Volpe, S Colella, J Pitarch, R Santoleri
Publication date
2016/10/1
Journal
Remote Sensing of Environment
Volume
184
Pages
595-604
Publisher
Elsevier
Description
Photoacclimation is a cellular process that allows phytoplankton to change the intracellular chlorophyll-a concentration (Chl) in relation to environmental factors such as light and nutrients. This process is currently overlooked by standard operational ocean colour algorithms used to retrieve information about both the phytoplankton standing stock and production. Here, we describe the photoacclimation effect on the phytoplankton seasonal cycle through the chlorophyll to carbon ratio (Chl:C) over the Mediterranean Sea, using SeaWiFS (1998–2007) monthly data. Chlorophyll was calculated through a regionalized empirical algorithm and Carbon was estimated from the particle backscattering, after subtraction of the non-algal contribution (bbpNAP). Historically, bbpNAP has been neglected or assumed constant, and only recently its space-time variability started to be taken into account. Here, bootstrapping …
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