Spatio-temporal evolution of wave groups derived from X-band sea clutter image time series at grazing incidence

This work studies wave groupiness properties in the spatiotemporal domain of wind-generated waves. For that purpose, analysis of temporal sequences of X-band radar images of the sea surface acquired at grazing incidence conditions is carrying out. The results presented in this work are based on the estimation of the local and instantaneous envelope of the sea surface derived from the radar data. The data shown in the paper were acquired from two different X-band radar stations, one located in the North Sea and the other station in the coast of New Zealand.