Validation of sea ice concentration - European sector
Bulletin date: 2025-09-23
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-23:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
45885 |
2702 |
0 |
5 |
4 |
1 |
0 |
0 |
| OW |
0 |
97 |
2 |
11 |
5 |
4 |
0 |
0 |
| VODI |
0 |
219 |
2 |
32 |
27 |
6 |
0 |
0 |
| ODI |
0 |
268 |
8 |
98 |
46 |
43 |
24 |
0 |
| CDI |
0 |
66 |
12 |
129 |
205 |
191 |
281 |
2 |
| VCDI |
0 |
7 |
1 |
65 |
282 |
977 |
4726 |
197 |
|
Date: 2025-09-25:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
45963 |
2906 |
8 |
36 |
42 |
7 |
0 |
0 |
| OW |
0 |
90 |
3 |
20 |
24 |
8 |
0 |
0 |
| VODI |
0 |
100 |
4 |
34 |
27 |
18 |
0 |
0 |
| ODI |
0 |
146 |
1 |
75 |
47 |
26 |
10 |
0 |
| CDI |
0 |
70 |
6 |
94 |
149 |
262 |
292 |
3 |
| VCDI |
0 |
11 |
3 |
57 |
278 |
1352 |
4302 |
156 |
|
Date: 2025-09-27:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
45946 |
3077 |
15 |
80 |
67 |
33 |
3 |
0 |
| OW |
0 |
45 |
3 |
25 |
24 |
7 |
2 |
0 |
| VODI |
0 |
55 |
3 |
31 |
29 |
15 |
0 |
0 |
| ODI |
0 |
87 |
4 |
49 |
54 |
20 |
18 |
0 |
| CDI |
0 |
87 |
7 |
93 |
138 |
300 |
347 |
0 |
| VCDI |
0 |
8 |
2 |
51 |
270 |
1560 |
4060 |
15 |
|
Date: 2025-09-29:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
45711 |
3190 |
23 |
183 |
134 |
29 |
25 |
0 |
| OW |
0 |
26 |
2 |
29 |
9 |
7 |
1 |
0 |
| VODI |
0 |
37 |
3 |
48 |
29 |
15 |
4 |
0 |
| ODI |
0 |
22 |
1 |
47 |
63 |
23 |
7 |
0 |
| CDI |
0 |
37 |
2 |
44 |
141 |
303 |
356 |
4 |
| VCDI |
0 |
11 |
0 |
16 |
130 |
1355 |
4496 |
67 |
|
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