Images show photo and false color image from a chlorophyll sensor on the OrbView-2 satellite. The satellite image shows high concentrations of phytoplankton in the Arabian Sea. The chlorophyll that the plants use to convert light to food tints the water green in the natural color image (top). The phytoplankton are growing in large swirls that follow the eddies and currents of the surface water. In the lower image, ocean chlorophyll concentrations are shown. Not surprisingly, concentrations appear to be highest near the coast where upwelling makes nutrients more available. NASA images courtesy the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE. See this
NASA web site for more info.