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Data from Satellite/Instruments: QuikSCAT/SeaWinds Scatterometer
The QuikSCAT nominal mission ended on November 23, 2009. QuikSCAT was launched in 1999 and was already operating 7 years beyond its design life. The NASA/JPL press release and a blog that Jeff Masters wrote contain some additional information.
There is still ocean surface vector wind data from the European ASCAT system which provides a partial mitigation for QuikSCAT.