88 
Difference from Difference from Difference from Difference from Difference from Difference from 
1961-1990 (days) 1961-1990 (days) 1961-1990 (days) 1961-1990 (days) 1961-1990 (days) 1961-1990 (days) 
November 
Csj 
December 
January 
February 
March 
April 
-10 J 
1 ■ 
k . J 
n 
h- 
■xj- 
05 
O 
LO 
05 
CO 
LO 
05 
CO 
LO 
05 
05 
LO 
05 
Csj 
CO 
05 
LO 
CO 
05 
00 
CO 
05 
h- 
05 
■xj- 
h- 
05 
h- 
h- 
05 
O 
00 
05 
CO 
00 
05 
CO 
00 
05 
05 
00 
05 
Csj 
05 
05 
LO 
05 
05 
00 s- 
05 O 
05 O 
Csj 
Figure 9.11. Number of days with ice for the period 1947-2002 relative to 1961-1990 for the Uecker- 
munde station; the solid curve shows 5-year variations smoothed with a running mean.