%0 conference paper
%@ 2153-7003
%A Navarro, W.,Streßer, M.,Carrasco, R.,Seemann, J.,Horstmann, J.

%D 2022
%J IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium
%N 
%P 6907-6910 
%R doi:10.1109/IGARSS46834.2022.9883799
%T A Calibration-Free Methodology to Estimate Significant Wave Height Using Time-Sequences of X-Band Marine Radar Images
%U https://doi.org/10.1109/IGARSS46834.2022.9883799
 
%X This research applies a calibration-free method to estimate the significant wave height (Hs) using the amplitude of the electromagnetic signal acquired by a coherent on receive X-Band radar that operates in horizontal polarization. The ex-periments were conducted from 8th to 11 th November 2015 at the research platform FINO-3 located in the German Bight of the southern North Sea. Unlike the traditional wave disper-sion based procedure, the proposed method uses other filtering and signal processing techniques to invert the sea surface elevation from the sea clutter radar images. The compari-son of radar-derived Hs to in-situ measurements collected by a waver rider buoy resulted in a root mean square error of 0.33 m with a bias of 0.09 m and a correlation coefficient of r=0.92 . Validation of Hs estimates considering the AWAC measurements shows a RMSE of 0.24 m with a bias of 0.18 m and r=0.96 . Therefore, this calibration free methodol-ogy is very well suited to be applied to X-Band marine radars operated from offshore platforms as well as ships.