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

The Yellow Sea

Remote sensing of ocean color in the Yellow Sea can be a challenge. Phytoplankton, suspended sediments, and dissolved organic matter color the water while various types of aerosols modify those colors before they are "seen" by orbiting radiometers.

The Aqua-MODIS data used to create the above image were collected on February 24, 2015. An 11-megabyte version is also available in which the tracks of bottom trawlers can be seen.

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.

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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.