Description MODIS image of the Southern Ocean on 22 November 2004, showing various levels of chlorophyll. The more phytoplankton present in the ocean water, the greater the concentration of plant pigments. Author Image courtesy of the MODIS Ocean Science Team at Goddard Space Flight CenterJPG file - 35.99 kB - 289 x 263 pixelsadded on 2012-10-31669 views