EVALUATION OF WAVE AND WIND DETECTION BY PORTABLE HFSWR OSMAR-S100

OSMAR-S is a portable high frequency surface wave radar system, which adopts Orthogonal Loop/Whip Antenna Arrays. Using this system, mean wave and wind field within an effective detection area (within 10km) can be obtained. In order to evaluate how OSMAR-S100 system performs, a set of buoy data collected in the southwestern Taiwan Strait during Jan. 29~Mar. 15, 2013 was compared to concurrent measurements from the radar system. Results were fairly good when significant wave height was > 0.5m and averaged wind speed > 5m/s, with an root mean square error (RMS) of 0.6 m for significant wave height, 1.60 s for wave period, 1.8 m/s for wind speed, and 16.7° for wind direction. It was thus suggested that the OSMAR-S100 system can be a robust approach for monitoring wave and wind under rough sea conditions.