3.2 Strömung 
4’W 0‘ 4’E 8’E 12’E 4"W 0‘ 4"E 8"E 12"E 
System Nordsee 
121 
^ I I I I 
10 30 50 70 90 
Fig. 3-2: Monthly surface circulation of the North Sea in 2007. Vector mean currents from >BSH- 
cmod<. Stability (%, colored) is the ratio of vector mean current to mean magnitude.