TIME 



FIGURE 3. COMPARISON OF MEASURED AND OBSERVED WAVE HEIGHTS. OBSERVER 2 OF THE 

 LIGHTSHIP FEHMARNBELT, OCT. 3 -17 , 1936 



MEASURED 



» 



OBSERVED 



CALCULATED 



TIME 

 FIGURE 4. COMPARISON OF WAVE LENGTHS. OBSERVER 2, OCT. 3-17, 1936. 



BUOY UNDERCUTS APPROX. 30-60 CM. 



MEASURED 



OBSERVED 



TIME 

 FIGURE 5. COMPARISON OF MEASURED AND OBSERVED WAVE HEIGHTS. OBSERVER I, OCT. 24- NOV. 13, 1936 



UI 



tr. 





MEASURED 









S 40 



■ 



1 '-■ ! yX OBSERVED 









X 



1- 

 o 



S 20 



-1 



111 



> 

 < 

 S 



'/r- 

 / 



1/ — '•"-^^''^ \ CALCULATED 



/ \ \\_ 



.•^v \ 



v_#^ 



^^hep^ 



TIME 

 FIGURE 6. COMPARISON OF WAVE LENGTHS. OBSERVER I, OCT. 24- NOV. 13, 1936. 



14 



