73

10

Figure  7.2.  Running  5-day  means  of  surface  water  temperature  in  Swinoujscie  in  the  winter  of  2000/01
(measured  daily  at  6:00  UTC,  data  from  IMGW)

Characteristics  of  the  2000/01  ice  season  in  Szczecin  Lagoon  and  Pomeranian  Bay
Meteorological  developments  led  to  three  short  ice  periods  in  the  study  area  in  the  winter  of
2000/01  (Figure  7.3):

Szczecin,  harbour
Trzebiez.  Roztoka  Odranska  (river  mouth)
Zalew  Szczecinski
Ueckermunde,  harbour
UeckermUnde.  harbour  to  river  mouth
Ueckermunde.  Stettiner  Haff
Kornin.  Stettiner  Hoff
Kamminke,  harbour  ond  vicinity
Swinoujscie  -  Szczecin,  fairway
Swinoujscie,  harbour

Figure  7.3.  Ice  concentration  and  thickness  in  the  Szczecin  Lagoon  during  the  winter  of  2000/01.

January  Februar
2000/01  ^

0
m

&

... v
10  20  30  10  20
January  Februar

4  5

4

3

ЛЛЛЛЛЛЛ/

3

A

A  -  Ice  thickness:  length  of  period
1:  <  5  cm  2:  5-10  cm
3:  11-15  cm  4:  16-30  cm
5:  31-50  cm
В  -  Ice  concentration:  length  of  period
a:  <7/10  b:  7/10-8/10
c:  9/10-10/10

a  b  c

a

ЛЛЛЛЛЛ  -  Ridged  ice

First  ice  occurred  in  the  protected  near-shore  waters  of  the  Szczecin  Lagoon  in  early  January.  This
frost  period  lasted  only  4  days.