Validation of sea ice concentration - European sector
Bulletin date: 2025-10-28
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-28:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
41534 |
4434 |
4 |
29 |
8 |
1 |
0 |
0 |
| OW |
20 |
114 |
2 |
13 |
13 |
3 |
0 |
0 |
| VODI |
27 |
214 |
2 |
30 |
25 |
2 |
1 |
0 |
| ODI |
21 |
144 |
11 |
75 |
33 |
16 |
6 |
0 |
| CDI |
2 |
89 |
11 |
131 |
69 |
82 |
147 |
0 |
| VCDI |
0 |
17 |
7 |
171 |
413 |
1994 |
6611 |
104 |
|
Date: 2025-10-30:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
41910 |
4487 |
5 |
37 |
9 |
5 |
0 |
0 |
| OW |
3 |
132 |
1 |
11 |
3 |
7 |
0 |
0 |
| VODI |
3 |
166 |
5 |
11 |
18 |
10 |
0 |
0 |
| ODI |
0 |
101 |
4 |
24 |
16 |
18 |
8 |
0 |
| CDI |
0 |
107 |
9 |
52 |
30 |
69 |
60 |
1 |
| VCDI |
0 |
81 |
12 |
186 |
435 |
1566 |
6381 |
647 |
|
Date: 2025-11-01:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
41053 |
5601 |
12 |
56 |
19 |
9 |
0 |
0 |
| OW |
0 |
83 |
2 |
8 |
4 |
6 |
0 |
0 |
| VODI |
0 |
139 |
8 |
31 |
9 |
9 |
0 |
0 |
| ODI |
0 |
123 |
9 |
35 |
19 |
17 |
3 |
0 |
| CDI |
0 |
63 |
8 |
71 |
43 |
149 |
127 |
0 |
| VCDI |
0 |
32 |
10 |
109 |
267 |
1605 |
6597 |
294 |
|
Date: 2025-11-03:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
41499 |
5051 |
5 |
67 |
12 |
0 |
0 |
0 |
| OW |
0 |
43 |
2 |
27 |
9 |
3 |
0 |
0 |
| VODI |
0 |
77 |
6 |
25 |
18 |
8 |
0 |
0 |
| ODI |
0 |
60 |
9 |
25 |
37 |
17 |
2 |
0 |
| CDI |
0 |
51 |
9 |
53 |
54 |
79 |
89 |
0 |
| VCDI |
0 |
49 |
7 |
105 |
274 |
1630 |
7016 |
212 |
|
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