Validation of sea ice concentration - Full domain
Bulletin date: 2025-07-29
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-07-29:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
55463 |
14308 |
39 |
256 |
45 |
8 |
0 |
0 |
| OW |
297 |
2181 |
41 |
302 |
72 |
24 |
3 |
0 |
| VODI |
210 |
3381 |
111 |
931 |
473 |
279 |
45 |
0 |
| ODI |
12 |
1930 |
129 |
2033 |
2750 |
2079 |
94 |
0 |
| CDI |
6 |
875 |
103 |
2385 |
7644 |
8716 |
407 |
0 |
| VCDI |
5 |
195 |
29 |
1048 |
7431 |
16727 |
1366 |
0 |
|
Date: 2025-07-31:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56954 |
19445 |
180 |
1264 |
252 |
29 |
0 |
0 |
| OW |
2 |
467 |
32 |
347 |
137 |
30 |
3 |
0 |
| VODI |
0 |
739 |
44 |
633 |
541 |
326 |
18 |
0 |
| ODI |
2 |
1030 |
95 |
1401 |
2824 |
2153 |
61 |
0 |
| CDI |
4 |
632 |
79 |
1900 |
8135 |
9127 |
393 |
0 |
| VCDI |
0 |
281 |
39 |
794 |
6794 |
15775 |
1471 |
0 |
|
Date: 2025-08-02:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57992 |
19841 |
273 |
1742 |
410 |
64 |
6 |
0 |
| OW |
0 |
270 |
23 |
233 |
112 |
50 |
8 |
0 |
| VODI |
1 |
514 |
30 |
482 |
393 |
358 |
34 |
0 |
| ODI |
2 |
866 |
74 |
1390 |
2295 |
2597 |
277 |
0 |
| CDI |
7 |
752 |
110 |
2251 |
5882 |
8728 |
1534 |
9 |
| VCDI |
1 |
350 |
52 |
1461 |
4614 |
12060 |
6178 |
107 |
|
Date: 2025-08-04:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59795 |
18949 |
194 |
1672 |
456 |
77 |
1 |
0 |
| OW |
0 |
257 |
11 |
176 |
106 |
44 |
10 |
0 |
| VODI |
0 |
521 |
26 |
460 |
370 |
352 |
43 |
0 |
| ODI |
0 |
879 |
51 |
1351 |
2292 |
2290 |
271 |
3 |
| CDI |
0 |
857 |
85 |
2494 |
6693 |
8812 |
1535 |
69 |
| VCDI |
0 |
434 |
38 |
1709 |
4464 |
10950 |
5206 |
430 |
|
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