Van Oovtmerssen 



30 



UNDISTURBED WAVE SPECTRUM £w 1 / 3 = 2.31 m. T =7.24 sec 



PREDICTED SPECTRUM AT THE POSITION OF THE TANKER 



MEASURED SPECTRUM AT THE POSITION OF THE TANKER 



£w!/ 3 = 170 m. T =7.55 sec. 



2.0 



to 



1.0 



U) in rad sec" 



Figure 18 Wave spectrum 1 



994 



