Ocean surface wind and wave monitoring at Typhoon Fung-Wong by HFSWR OSMAR071
“凤凰”台风期间海面风、浪的高频地波雷达OSMAR071遥感

This paper provides wind and wave observation results detected by high frequency surface wave radar OSMAR071 during Typhoon Fung-Wong.Methods for extracting ocean surface parameters from HFSWR sea echo are introduced.The Stewart Barnum and Maresca SBM method combined with multi-beam sampling method is used to invert wind direction.A modified Barrick’s model is proposed to obtain significant wave height and the SMB formulation is used to extract wind speed information.Compared with buoy data of wind and wave,radar inversion results show good agreement with in-situ observations.The root-mean-square error RMSE of significant wave height,wind speed and wind direction between radar-derived and those from the buoy are 0.48 m,3.5 m/s,27.7°,and the coefficients of determination(R2) are 0.72,0.60 and 0.97,respectively.Factors affecting detecting accuracy are also discussed in this paper.