Experimental study of the transformation of wave spectra by a uniform current

An experimental study is reported on the interaction of a wave field with a uniform current field, determining how the wave spectra change due to the presence of current. Wave systems with several peak periods and significant wave heights, were subjected to currents of different speeds, both in the same direction and opposing the wave propagation. Theoretical models of transformed spectra were compared with the experimental data and reasonable comparisons were obtained.