19

water  level  in  cm  RosfcOCfc

Fig.  4.2.  Water  level  oscillations  of  about  0.5  m  /  h  in  the  Warnow  estuary  at  Rostock

Wismar

Fig.  4.3.  Example  of  regular  semidiurnal  tides  at  the  Wismar  gauge  from  10-14  August  2000
As  has  been  pointed  out  above,  the  westernmost  basins  of  the  Baltic  Sea  have  clearly
distinguishable  tides.  Their  amplitude  reaches  about  15  cm  and  diminishes  toward  the  east.
Tides  in  the  central  part  of  the  Baltic  Sea  are  negligibly  small,  and  their  amplitude  hardly
reaches  3-5  cm.  It  has  been  assumed  that  these  oscillations  are  caused  by  the  North  Sea
tides.