##### All-weather Sea Surface Wind Speed         (2015.06.16) #####


The All-weather sea surface wind speed product is a newly defined in
March 2015 as one of the AMSR2 research products. It can estimate wind 
speed under tropical cyclones or heavy rainfall regions, which cannot be 
estimated by the standard sea surface wind speed product, by using both 
6-GHz and 10-GHz horizontal polarization channels to detect white caps that
increase together with wind speed.

(Reference)
A. Shibata, "A wind speed retrieval algorithm by combining 6 and 10 GHz
data from Advanced Microwave Scanning Radiometer: Wind speed inside
hurricanes", J. Oceanogr., Vol.62, pp.351-359, 2006.