This Sea-viewing Wide Field-of-view Sensor (SeaWiFS) image shows a high concentration of phytoplankton chlorophyll in the Brazil Current Confluence region east of Argentina. In this false-color image, high chlorophyll concentrations appear as red, orange, and yellow. High coastal sediments are also seen to the northwest of the Brazil Current Confluence in the Rio de la Plata estuary, where the waters of the Parana and Uruguay Rivers enter the ocean.

Image processed by Robert Simmon based on data from the SeaWiFS project and the Goddard DAAC; text by Jim Acker.