Seasonal and long term variation 
21 
40 
] Wismar 
IWarnemünde 
] Sassnitz 
] Swinoujscie 
iKotobrzeg 
440 470 500 
Water level [cm] 
Fig. 3.2. c as in 3.2. b, just for the month of January. 
25 
20 
E 
o 
5 
o 
<u 
XI 
£10 
3 
o 
5 
0 
Fig. 3.2. d Seasonal distribution of sea levels s440 cm at the Wismar, Warnemünde, 
Sassnitz, Swinoujscie and Kotobrzeg gauge stations 
VII VIII IX 
XI XII I 
month