Sea-viewing Wide Field-of-view Sensor

Project Description
The purpose of the Sea-viewing Wide Field-of-view Sensor (SeaWiFS)
Project is to provide quantitative data on global ocean bio-optical
properties to the Earth science community. Subtle changes in ocean
color signify various types and quantities of marine phytoplankton
(microscopic marine plants), the knowledge of which has both
scientific and practical applications. The SeaWiFS Project operates a
research data system that processes, calibrates, validates, archives
and distributes data received from SeaWiFS. The SeaWiFS Mission is a
part of NASA's Earth Science Enterprise.

The SeaStar spacecraft, developed by OSC, carries the SeaWiFS
instrument and was launched to low Earth orbit on board an extended
Pegasus launch vehicle on August 1, 1997.

The SeaWiFS data is procured as a "data buy" from a private
contractor, Orbital Sciences Corporation (OSC), which subcontracted
with the Hughes Santa Barbara Research Center (SBRC) as the builder of
the SeaWiFS ocean color sensor. OSC built, launched, and operates the
SeaStar satellite carrying the sensor.

The GSFC EOS DAAC has the responsibility for the permanent archiving
and distribution of SeaWiFS data to all approved SeaWiFS data
users. The SDPS provides processed data to the GSFC DAAC. Authorized
users may also request LAC data archived at NASA-licensed HRPT
stations. A consolidated, on-line, electronic catalog of all holdings
of SeaWiFS data at Goddard or NASA-licensed HRPT stations is available
to all authorized SeaWiFS research users. Requests for data not held
by the GSFC DAAC will be directed to the LAC station that holds the
data. Fees, if any, for copies of SeaWiFS data can be no higher than
the nominal cost of reproduction of the requested data. The EOS DAAC
will support the distribution of data in its holdings through
electronic means and on selected magnetic or optical media. Standing
orders for routine distribution of all or selected products, as they
become available, are subject to approval by NASA.

For further information on the SeaWiFS Project, contact:

SeaWiFS Project, Code 970.2
NASA Goddard Space Flight Center
Greenbelt, Maryland 20771
Telephone: (301) 286-9676

For more information on SeaWiFS, see:

For more information on Earth Science Enterprise, see: