Baltic Sea Ice Climate Workshop 2005 
74 
confirmed. This does not fit with the maximum ice extent of 157,000 km 2 , it must be at least in 
the range of 190,000 to 200,000 km 2 . 
Table 5. Comparison of the ranking of the ice winters related to the maximum ice extent 
and to the phase related mean ice extent 
a) Chronological order b) Order by maximum Ice extent 
Max. Extent 
Mean Extent 
Max. Extent 
Mean Extent 
Winter 
km 2 x10 3 
Rank 
Rank 
km 2 x10 3 
Winter 
km 2 x10 3 
Rank 
Rank 
km 2 x10 3 
1960/61 
53 
39 
34 
40 
1986/87 
405 
1 
1 
162 
1961/62 
160 
21 
27 
66 
1965/66 
374 
2 
6 
120 
1962/63 
355 
4 
2 
141 
1969/70 
370 
3 
3 
129 
1963/64 
150 
25 
23 
72 
1962/63 
355 
4 
2 
141 
1964/65 
153 
24 
16 
92 
1984/85 
355 
5 
5 
125 
1965/66 
374 
2 
6 
120 
1985/86 
337 
6 
8 
111 
1966/67 
183 
17 
9 
110 
1978/79 
325 
7 
4 
126 
1967/68 
214 
12 
7 
115 
1995/96 
278 
8 
10 
109 
1968/69 
265 
9 
11 
103 
1968/69 
265 
9 
11 
103 
1969/70 
370 
3 
3 
129 
1979/80 
260 
10 
15 
95 
1970/71 
157 
22 
22 
78 
1981/82 
255 
11 
12 
103 
1971/72 
180 
18 
14 
100 
1967/68 
214 
12 
7 
115 
1972/73 
99 
31 
36 
36 
1993/94 
206 
13 
13 
102 
1973/74 
94 
33 
21 
79 
1977/78 
193 
14 
17 
90 
1974/75 
74 
34 
40 
29 
1976/77 
190 
15 
19 
84 
1975/76 
164 
20 
18 
85 
1983/84 
187 
16 
25 
71 
1976/77 
190 
15 
19 
84 
1966/67 
183 
17 
9 
110 
1977/78 
193 
14 
17 
90 
1971/72 
180 
18 
14 
100 
1978/79 
325 
7 
4 
126 
1980/81 
175 
19 
20 
83 
1979/80 
260 
10 
15 
95 
1975/76 
164 
20 
18 
85 
1980/81 
175 
19 
20 
83 
1961/62 
160 
21 
27 
66 
1981/82 
255 
11 
12 
103 
1970/71 
157 
22 
22 
78 
1982/83 
117 
30 
30 
54 
1998/99 
157 
23 
24 
72 
1983/84 
187 
16 
25 
71 
1964/65 
153 
24 
16 
92 
1984/85 
355 
5 
5 
125 
1963/64 
150 
25 
23 
72 
1985/86 
337 
6 
8 
111 
1987/88 
149 
26 
27 
62 
1986/87 
405 
1 
1 
162 
1996/97 
128 
27 
26 
69 
1987/88 
149 
26 
27 
62 
1997/98 
129 
28 
29 
62 
1988/89 
52 
40 
35 
40 
1990/91 
122 
29 
31 
53 
1989/90 
67 
37 
33 
44 
1982/83 
117 
30 
30 
54 
1990/91 
122 
29 
31 
53 
1972/73 
99 
31 
36 
36 
1991/92 
66 
38 
39 
34 
1999/00 
95 
32 
32 
52 
1992/93 
70 
35 
37 
35 
1973/74 
94 
33 
21 
79 
1993/94 
206 
13 
13 
102 
1974/75 
74 
34 
40 
29 
1994/95 
68 
36 
38 
35 
1992/93 
70 
35 
37 
35 
1995/96 
278 
8 
10 
109 
1994/95 
68 
36 
38 
35 
1996/97 
128 
27 
26 
69 
1989/90 
67 
37 
33 
44 
1997/98 
129 
27 
29 
62 
1991/92 
66 
38 
39 
34 
1998/99 
157 
23 
24 
72 
1960/61 
53 
39 
34 
40 
1999/00 
95 
32 
32 
52 
1988/99 
52 
40 
35 
40 
In addition to the comments above, from Table 5b, in which the maximum ice extent (which 
includes also the ice cover from the southern Baltic Sea) is used for the ranking, it becomes 
obvious by comparing the ranks of the maximum ice extent with those of the mean ice extent 
that only few ice winters (6) show the same order number, however, already 16 ice winters 
differ only by two ranks. The overall range is plus 12 ranks in 1973/74 (which may result from 
‘overestimation’ of phase 6 - see above) and minus 9 ranks in 1983/84. The mean absolute