Wind speed extraction from rain-contaminated X-band nautical radar data
In this paper, a new method for retrieving wind speeds from rain-contaminated X-band nautical radar images is presented. The method mitigates rain influence by applying the gamma correction to rain-contaminated images, and then relates the average intensities of radar images to the measured wind speeds with a logarithmic function. The method has been tested using X-band nautical radar images and shipborne anemometer data. A comparison with the anemometer data shows that the root mean square error of wind speeds retrieved from rain-contaminated radar images is reduced by 5.4 m/s.