U. Callies et al.: Surface drifters in the inner German Bight 
809 
www.ocean-sci.net/13/799/2017/ 
Ocean Sci., 13, 799-827, 2017 
BSHcmod+W 
TRIM 
Wind: 10 ms' 1 
6' 
7' 
8 
9' 
55* 
54' 
3 Jur 
e (day 7) 
< 
% 
t 
4 
wA 
Stokei 
Winda 
drift: OFF 
ge; OFF 
'v 
—s 
[Г 
4Jun 
e (day 8) 
■ ■ = 
\ 
7 
\ 
\ 
4 
8 
\ 
Stoke* 
Winda 
drift: OFF 
ge: OFF 
6' 7 
8 
9' 
20 cm s" 1 (18 km per 25 h) 
55’ 
54' 
55' 
54' 
Figure 7. Observed 25 h drift paths (coloured in agreement with Table Sl ) are contrasted against concurrent simulations (black) based on 
BSHcmod + W (a-d) or TRIM (e-h). For 4 selected days, panels combine all drifters observed at the time of the plot. All drift distances were 
converted into 25 h mean drift velocities. Note that the length scales shown do not correspond with the spatial scale of the geographic map. 
Vectors in each panel’s top right comer indicate the mean wind velocity vector at 55° N and 7° E derived from the respective atmospheric 
model used.