Chairman: Cyril Moulin Laboratoire des Sciences du Climat et de l'Environnement CEA Saclay - bat.712 91191 Gif-sur-Yvette France Phone: (33 1) 69 08 71 20 Email: cyril.moulin@cea.fr Established: January 2006 Terms of Reference: Establish the relevance of identifying phytoplankton functional types (PFTs) from ocean colour (OC) measurements. Define the major PFTs and propose a common terminology. Summarize our current understanding of the physics of PFTs identification from OC: from cell size and pigment composition to inherent optical properties (IOPs) and to marine reflectances. Review existing techniques/algorithms to detect PFTs from marine reflectance: from radiative transfer simulations to empirical relationships. Compare the results of the various algorithms on selected case studies and at different scales (regional vs. global). Examine the interest of the identification of PFTs from OC for chlorophyll and primary production estimates. Examine how PFTs derived from OC can be meaningful for the validation/improvement of global biogeochemical models. Make recommendations about which studies/measurements are needed to (1) better understand the relationships between marine reflectances and PFTs, (2) validate the PFT products, and (3) further improve the algorithms. Make recommendations about the specification of future OC sensors to improve PFT identification. Prepare a report to be published within the IOCCG series. Members: Jim Aiken CASIX/Plymouth Marine Laboratory, UK Aurea Ciotti São Paulo State University, Brazil Hervé Claustre Laboratoire d'Océanographie de Villefranche (LOV), France Lesley Clementson CSIRO, Australia Susanne E. Craig Dalhousie University, Canada Emmanuel Devred Bedford Institute of Oceanography, Canada Corinne Le Quéré University of East Anglia , UK Cyril Moulin LSCE/IPSL, France Collin S. Roesler University of Maine, USA Shubha Sathyendranath Dalhousie University, Canada Heidi M. Sosik Woods Hole Oceanographic Institution, USA Darius Stramski Scripps Institution of Oceanography, USA Working Groups | Home

Proposal IOCCG-11 meeting (January 2006) Report of first working group meeting (Paris, 6-7 July 2006) IOCCG-13 presentation (Paris, Feb. 2008)