Climatology for the month of January (Sea-viewing Wide Field-of-view Sensor data, 1998–2010) of the dominant phytoplankton groups (Phaeocystis-like diatoms, Synechococcus-like cyanobacteria, Prochlorococcus, and nano-eukaryotes). Improved phytoplankton functional type algorithms are anticipated from the next generation of hyperspectral OC satellites. Credit: IOCCG Report 15