Validation of sea ice concentration - Asian sector
Bulletin date: 2025-12-02
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-12-02:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
317 |
1984 |
1 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
109 |
0 |
8 |
1 |
0 |
0 |
0 |
| VODI |
2 |
158 |
1 |
14 |
0 |
0 |
0 |
0 |
| ODI |
2 |
192 |
2 |
24 |
3 |
7 |
0 |
0 |
| CDI |
2 |
689 |
5 |
121 |
72 |
135 |
81 |
41 |
| VCDI |
0 |
617 |
25 |
410 |
696 |
2846 |
11352 |
12326 |
|
Date: 2025-12-04:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
52 |
1969 |
5 |
38 |
3 |
0 |
0 |
0 |
| OW |
0 |
60 |
3 |
10 |
5 |
0 |
0 |
0 |
| VODI |
0 |
99 |
3 |
11 |
4 |
0 |
0 |
0 |
| ODI |
0 |
118 |
3 |
20 |
15 |
1 |
0 |
0 |
| CDI |
0 |
137 |
2 |
42 |
55 |
106 |
58 |
27 |
| VCDI |
0 |
405 |
23 |
503 |
1302 |
2227 |
11407 |
13533 |
|
Date: 2025-12-06:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15 |
1647 |
4 |
51 |
15 |
0 |
0 |
0 |
| OW |
0 |
92 |
0 |
3 |
6 |
0 |
0 |
0 |
| VODI |
0 |
121 |
1 |
7 |
7 |
0 |
0 |
0 |
| ODI |
0 |
109 |
1 |
18 |
10 |
6 |
2 |
0 |
| CDI |
0 |
143 |
1 |
37 |
67 |
129 |
84 |
5 |
| VCDI |
0 |
427 |
21 |
370 |
1135 |
2614 |
14745 |
10353 |
|
Date: 2025-12-08:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12 |
1279 |
2 |
46 |
8 |
0 |
0 |
0 |
| OW |
0 |
89 |
1 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
148 |
1 |
12 |
11 |
0 |
0 |
0 |
| ODI |
0 |
166 |
3 |
17 |
9 |
3 |
2 |
0 |
| CDI |
0 |
215 |
2 |
20 |
43 |
91 |
171 |
11 |
| VCDI |
0 |
792 |
26 |
386 |
571 |
2856 |
15062 |
10181 |
|
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