Validation of sea ice concentration - Asian sector
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 |
207 |
2236 |
2 |
35 |
4 |
0 |
0 |
0 |
| OW |
0 |
103 |
1 |
6 |
2 |
0 |
0 |
0 |
| VODI |
1 |
144 |
3 |
14 |
2 |
0 |
0 |
0 |
| ODI |
0 |
764 |
9 |
94 |
18 |
0 |
1 |
0 |
| CDI |
0 |
266 |
16 |
319 |
102 |
67 |
150 |
34 |
| VCDI |
0 |
126 |
10 |
337 |
494 |
1911 |
13079 |
11688 |
|
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 |
207 |
2031 |
3 |
16 |
1 |
0 |
0 |
0 |
| OW |
2 |
87 |
1 |
2 |
1 |
0 |
0 |
0 |
| VODI |
0 |
143 |
3 |
16 |
2 |
1 |
0 |
0 |
| ODI |
0 |
153 |
0 |
21 |
5 |
1 |
0 |
0 |
| CDI |
0 |
403 |
5 |
89 |
46 |
63 |
110 |
57 |
| VCDI |
0 |
684 |
25 |
491 |
721 |
1730 |
12400 |
12725 |
|
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 |
521 |
1723 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
4 |
105 |
1 |
2 |
0 |
0 |
0 |
0 |
| VODI |
2 |
152 |
2 |
8 |
0 |
0 |
0 |
0 |
| ODI |
0 |
141 |
1 |
18 |
4 |
2 |
0 |
0 |
| CDI |
0 |
182 |
3 |
19 |
27 |
32 |
61 |
33 |
| VCDI |
0 |
1646 |
56 |
513 |
566 |
2654 |
11474 |
12293 |
|
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 |
474 |
2066 |
1 |
7 |
0 |
0 |
0 |
0 |
| OW |
6 |
99 |
0 |
8 |
0 |
0 |
0 |
0 |
| VODI |
0 |
131 |
2 |
16 |
1 |
0 |
0 |
0 |
| ODI |
0 |
119 |
2 |
27 |
8 |
5 |
5 |
0 |
| CDI |
0 |
99 |
1 |
62 |
39 |
88 |
149 |
53 |
| VCDI |
0 |
1531 |
30 |
438 |
509 |
3180 |
11634 |
11455 |
|
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