NASA's OceanColor Web is supported by the Ocean Biology Processing Group (OBPG) at NASA's Goddard Space Flight Center. Our responsibilities include the collection, processing, calibration, validation, archive and distribution of ocean-related products from a large number of operational, satellite-based remote-sensing missions providing ocean color, sea surface temperature and sea surface salinity data to the international research community since 1996.

Ocean Color Feature

Mississippi River Plume

The Mississippi River and its distributaries modify the Gulf of Mexico more than any other river flowing into that body of water. This can be clearly seen in the above Aqua-MODIS image collected on January 27, 2015. The river brings huge quantities of suspended sediments and eutrophying nutrients to the northern Gulf from its very large watershed in the central United States.

Click on the above image for a view of most of the Gulf or get the full-resolution, 24-megabyte version.

SeaDAS icon

SeaDAS is an image analysis package for the processing and display of satellite ocean color data.

SeaBASS icon

SeaBASS is a repository of in situ oceanographic data to support algorithm development and satellite data product validation activities.


The OBPG serves as a Distributed Active Archive Center for satellite ocean biology data produced or collected under NASA's Earth Observing System Data and Information System, including those from historical missions and partner space organizations.

FSG icon

The OBPG maintains a Field Support Group that collects in situ data, engages in community measurement protocols activities, and hosts an HPLC phytoplankton pigment processing facility.