Validation of sea ice concentration - Asian sector
Bulletin date: 2025-10-28
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-28:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6772 |
1882 |
15 |
76 |
8 |
0 |
0 |
0 |
| OW |
9 |
85 |
5 |
44 |
4 |
0 |
0 |
0 |
| VODI |
5 |
67 |
6 |
109 |
33 |
0 |
0 |
0 |
| ODI |
3 |
74 |
10 |
226 |
142 |
22 |
0 |
0 |
| CDI |
2 |
59 |
7 |
303 |
671 |
270 |
123 |
46 |
| VCDI |
0 |
5 |
12 |
201 |
1492 |
6303 |
10510 |
2644 |
|
Date: 2025-10-30:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5701 |
2430 |
6 |
44 |
4 |
6 |
6 |
0 |
| OW |
0 |
74 |
7 |
21 |
3 |
7 |
5 |
0 |
| VODI |
0 |
86 |
7 |
98 |
29 |
27 |
10 |
0 |
| ODI |
0 |
70 |
7 |
87 |
105 |
74 |
15 |
0 |
| CDI |
0 |
35 |
6 |
123 |
232 |
378 |
253 |
51 |
| VCDI |
0 |
4 |
0 |
49 |
433 |
6062 |
12849 |
2841 |
|
Date: 2025-11-01:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4414 |
3231 |
8 |
144 |
63 |
3 |
0 |
0 |
| OW |
0 |
51 |
1 |
32 |
15 |
0 |
0 |
0 |
| VODI |
0 |
62 |
4 |
58 |
28 |
3 |
14 |
0 |
| ODI |
0 |
34 |
2 |
62 |
56 |
27 |
43 |
0 |
| CDI |
0 |
16 |
1 |
96 |
157 |
203 |
269 |
68 |
| VCDI |
0 |
14 |
2 |
97 |
256 |
2912 |
13450 |
6349 |
|
Date: 2025-11-03:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5567 |
2128 |
2 |
38 |
29 |
6 |
0 |
0 |
| OW |
2 |
69 |
2 |
21 |
19 |
0 |
0 |
0 |
| VODI |
0 |
84 |
1 |
39 |
42 |
0 |
0 |
0 |
| ODI |
0 |
61 |
5 |
53 |
54 |
4 |
5 |
0 |
| CDI |
0 |
33 |
3 |
61 |
144 |
48 |
138 |
30 |
| VCDI |
0 |
77 |
6 |
78 |
537 |
3685 |
11853 |
7321 |
|
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