Validation of sea ice concentration - Full domain
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 |
46113 |
10153 |
15 |
76 |
15 |
0 |
2 |
0 |
| OW |
52 |
428 |
7 |
43 |
12 |
0 |
5 |
0 |
| VODI |
55 |
676 |
13 |
124 |
74 |
8 |
17 |
0 |
| ODI |
12 |
1395 |
30 |
337 |
175 |
59 |
34 |
0 |
| CDI |
1 |
768 |
51 |
814 |
453 |
545 |
526 |
52 |
| VCDI |
0 |
305 |
34 |
734 |
1722 |
6714 |
33378 |
28404 |
|
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 |
45616 |
10454 |
22 |
83 |
48 |
66 |
6 |
0 |
| OW |
35 |
355 |
8 |
29 |
14 |
10 |
10 |
0 |
| VODI |
39 |
559 |
7 |
103 |
55 |
12 |
17 |
0 |
| ODI |
23 |
562 |
19 |
146 |
127 |
22 |
21 |
0 |
| CDI |
13 |
840 |
23 |
325 |
315 |
333 |
366 |
74 |
| VCDI |
0 |
1072 |
76 |
1213 |
2065 |
6951 |
34718 |
27579 |
|
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 |
43800 |
11321 |
47 |
387 |
238 |
144 |
17 |
0 |
| OW |
73 |
323 |
4 |
56 |
73 |
25 |
6 |
0 |
| VODI |
91 |
480 |
17 |
90 |
102 |
26 |
7 |
0 |
| ODI |
59 |
477 |
11 |
119 |
131 |
53 |
9 |
0 |
| CDI |
38 |
553 |
22 |
170 |
254 |
349 |
295 |
37 |
| VCDI |
13 |
2312 |
117 |
1140 |
2017 |
8792 |
34653 |
25483 |
|
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 |
41210 |
13305 |
36 |
316 |
276 |
100 |
16 |
0 |
| OW |
39 |
297 |
2 |
56 |
101 |
30 |
4 |
0 |
| VODI |
36 |
418 |
12 |
111 |
179 |
75 |
10 |
0 |
| ODI |
11 |
380 |
11 |
136 |
192 |
107 |
14 |
0 |
| CDI |
7 |
466 |
35 |
228 |
288 |
323 |
439 |
125 |
| VCDI |
2 |
2513 |
75 |
1048 |
1678 |
9800 |
34495 |
25429 |
|
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