Validation of sea ice concentration - Full domain
Bulletin date: 2025-10-14
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-14:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66469 |
13533 |
9 |
42 |
1 |
0 |
0 |
0 |
| OW |
22 |
608 |
6 |
36 |
0 |
0 |
0 |
0 |
| VODI |
26 |
1290 |
48 |
281 |
25 |
2 |
0 |
0 |
| ODI |
5 |
1562 |
79 |
866 |
252 |
52 |
9 |
0 |
| CDI |
0 |
452 |
51 |
1102 |
964 |
502 |
477 |
84 |
| VCDI |
0 |
49 |
6 |
282 |
1494 |
9742 |
29476 |
4529 |
|
Date: 2025-10-16:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65339 |
14356 |
32 |
263 |
64 |
3 |
0 |
0 |
| OW |
0 |
542 |
23 |
114 |
38 |
0 |
0 |
0 |
| VODI |
2 |
997 |
28 |
297 |
113 |
8 |
0 |
0 |
| ODI |
0 |
863 |
54 |
667 |
353 |
41 |
12 |
3 |
| CDI |
0 |
308 |
30 |
743 |
971 |
757 |
808 |
50 |
| VCDI |
0 |
108 |
23 |
552 |
1781 |
12675 |
26998 |
4417 |
|
Date: 2025-10-18:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64417 |
14484 |
87 |
788 |
222 |
84 |
0 |
0 |
| OW |
6 |
454 |
11 |
130 |
58 |
35 |
0 |
0 |
| VODI |
9 |
839 |
36 |
292 |
137 |
54 |
1 |
0 |
| ODI |
1 |
670 |
36 |
500 |
256 |
111 |
18 |
3 |
| CDI |
0 |
262 |
32 |
532 |
718 |
874 |
593 |
200 |
| VCDI |
0 |
106 |
19 |
528 |
1716 |
13161 |
25940 |
6013 |
|
Date: 2025-10-20:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
63258 |
13846 |
141 |
1365 |
594 |
284 |
15 |
0 |
| OW |
6 |
455 |
17 |
208 |
76 |
56 |
7 |
0 |
| VODI |
8 |
642 |
23 |
352 |
166 |
100 |
20 |
0 |
| ODI |
15 |
573 |
42 |
490 |
294 |
174 |
58 |
2 |
| CDI |
1 |
247 |
22 |
473 |
556 |
1027 |
773 |
293 |
| VCDI |
0 |
142 |
22 |
406 |
1759 |
13187 |
20962 |
11276 |
|
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