Validation of sea ice concentration - European sector
Bulletin date: 2025-11-25
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-25:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
37532 |
6800 |
6 |
22 |
10 |
0 |
0 |
0 |
| OW |
26 |
237 |
4 |
26 |
6 |
0 |
0 |
0 |
| VODI |
20 |
314 |
5 |
54 |
30 |
7 |
0 |
0 |
| ODI |
6 |
297 |
10 |
94 |
34 |
13 |
0 |
0 |
| CDI |
0 |
129 |
10 |
191 |
93 |
150 |
101 |
0 |
| VCDI |
0 |
94 |
9 |
193 |
347 |
2470 |
7076 |
214 |
|
Date: 2025-11-27:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
37081 |
7480 |
12 |
44 |
34 |
45 |
1 |
0 |
| OW |
3 |
161 |
4 |
15 |
5 |
6 |
0 |
0 |
| VODI |
1 |
205 |
2 |
35 |
11 |
7 |
0 |
0 |
| ODI |
0 |
158 |
7 |
39 |
22 |
5 |
0 |
0 |
| CDI |
0 |
160 |
10 |
66 |
79 |
115 |
68 |
0 |
| VCDI |
0 |
140 |
32 |
356 |
469 |
2417 |
7333 |
2 |
|
Date: 2025-11-29:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
36634 |
7507 |
28 |
277 |
120 |
49 |
0 |
0 |
| OW |
18 |
118 |
0 |
25 |
26 |
7 |
0 |
0 |
| VODI |
17 |
166 |
5 |
21 |
42 |
5 |
0 |
0 |
| ODI |
11 |
150 |
4 |
25 |
34 |
12 |
0 |
0 |
| CDI |
2 |
167 |
11 |
53 |
68 |
105 |
41 |
0 |
| VCDI |
0 |
341 |
37 |
362 |
671 |
2739 |
6732 |
0 |
|
Date: 2025-12-01:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
36698 |
7341 |
25 |
183 |
106 |
29 |
2 |
0 |
| OW |
12 |
102 |
0 |
15 |
29 |
9 |
0 |
0 |
| VODI |
12 |
135 |
5 |
41 |
72 |
23 |
0 |
0 |
| ODI |
9 |
144 |
6 |
32 |
77 |
15 |
0 |
0 |
| CDI |
6 |
161 |
12 |
52 |
96 |
81 |
90 |
0 |
| VCDI |
2 |
619 |
19 |
298 |
447 |
3049 |
6576 |
0 |
|
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