56 
SIGNIFICANT WAVE HEIGHT 
HÖRNUM / SYLT 
1989 1989 
ENERGY- MAXIMUM 
HÖRNUM / 
FREQUENCY 
SYLT 
sec' 
o 
z 
liJ 
z> 
o 
UJ 
a: 
U- 
1 2 3 4 5 6 7 8 
APR 
1989 
9 
10 11 12 13 14 15 16 17 18 19 20 21 
22 23 24 25 26 27 28 29 30 
1 
MAY 
1989