Validation of sea ice concentration - European sector
Bulletin date: 2025-09-30
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-30:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
45535 |
2839 |
1 |
8 |
2 |
0 |
0 |
0 |
| OW |
4 |
87 |
2 |
8 |
0 |
0 |
0 |
0 |
| VODI |
2 |
202 |
5 |
58 |
8 |
1 |
0 |
0 |
| ODI |
0 |
148 |
17 |
152 |
129 |
8 |
3 |
0 |
| CDI |
0 |
33 |
1 |
69 |
193 |
154 |
143 |
8 |
| VCDI |
0 |
4 |
0 |
10 |
150 |
1236 |
5307 |
103 |
|
Date: 2025-10-02:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
45591 |
2996 |
2 |
34 |
12 |
0 |
0 |
0 |
| OW |
1 |
109 |
0 |
27 |
10 |
1 |
0 |
0 |
| VODI |
0 |
130 |
3 |
60 |
49 |
6 |
0 |
0 |
| ODI |
0 |
96 |
2 |
68 |
61 |
8 |
0 |
0 |
| CDI |
0 |
25 |
0 |
44 |
81 |
78 |
116 |
6 |
| VCDI |
0 |
26 |
4 |
40 |
206 |
1300 |
5320 |
118 |
|
Date: 2025-10-04:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
45669 |
3295 |
9 |
58 |
33 |
4 |
1 |
0 |
| OW |
0 |
41 |
5 |
18 |
18 |
4 |
0 |
0 |
| VODI |
0 |
69 |
1 |
35 |
25 |
9 |
2 |
0 |
| ODI |
0 |
55 |
3 |
40 |
42 |
10 |
8 |
0 |
| CDI |
0 |
22 |
2 |
45 |
59 |
141 |
208 |
0 |
| VCDI |
0 |
9 |
1 |
53 |
141 |
2754 |
3740 |
1 |
|
Date: 2025-10-06:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
45654 |
3422 |
7 |
83 |
52 |
7 |
0 |
0 |
| OW |
0 |
36 |
2 |
11 |
25 |
4 |
0 |
0 |
| VODI |
0 |
56 |
4 |
31 |
46 |
9 |
0 |
0 |
| ODI |
0 |
22 |
2 |
34 |
42 |
17 |
2 |
0 |
| CDI |
0 |
18 |
4 |
36 |
54 |
244 |
167 |
0 |
| VCDI |
0 |
7 |
6 |
42 |
145 |
2506 |
3815 |
18 |
|
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