810

U.  Callies  et  al.:  Surface  drifters  in  the  inner  German  Bight

Ocean  Sci.,  13,  799-827,  2017

www.ocean-sci.net/13/799/2017/

BSHcmod+W

Wind:  10  m  s _

14  June  (day  18)

G

/

'Co

M

drift:  OFF
go:  OFF

-

q

6'
20  cm  s - ’  (18  km  po

8
r  25  h)

9'

55-Figure

  8.  Continued  from  Fig.  7.

Note  that  after  about  day  12  both  observations  and  simulations ­
  for  the  two  drifters  (nos.  6  and  8)  are  more  or
less  plotted  on  top  of  each  other  (applies  to  Fig.  8c  and
g,  for  instance,  and  various  plots  in  the  Supplement).

Days  15-16  (11-12  June):  For  a  short  time,  the  circulation
returns  to  cyclonic  orientation  (Fig.  3).  BSHcmod  +  W
simulations  greatly  underestimate  drift  velocities  to  the
north-west  and  tend  to  even  cease  on  day  16  (Figs.  6
and  8c).  Due  to  low  winds  (from  north-east  or  east).