Validation of sea ice concentration - Asian sector
Bulletin date: 2025-09-02
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-02:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11540 |
4955 |
8 |
34 |
2 |
0 |
0 |
0 |
| OW |
12 |
292 |
5 |
46 |
6 |
0 |
0 |
0 |
| VODI |
7 |
783 |
36 |
314 |
163 |
46 |
0 |
0 |
| ODI |
0 |
721 |
71 |
1126 |
1451 |
447 |
0 |
0 |
| CDI |
0 |
104 |
29 |
852 |
3690 |
2238 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
82 |
1579 |
1606 |
1 |
0 |
|
Date: 2025-09-04:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11564 |
5792 |
35 |
175 |
41 |
0 |
0 |
0 |
| OW |
0 |
243 |
9 |
103 |
40 |
0 |
0 |
0 |
| VODI |
0 |
373 |
33 |
255 |
139 |
55 |
0 |
0 |
| ODI |
0 |
349 |
57 |
927 |
1288 |
447 |
0 |
0 |
| CDI |
0 |
114 |
23 |
842 |
3115 |
2267 |
4 |
0 |
| VCDI |
0 |
2 |
1 |
120 |
1651 |
2181 |
1 |
0 |
|
Date: 2025-09-06:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11554 |
5927 |
48 |
315 |
77 |
1 |
0 |
0 |
| OW |
0 |
123 |
5 |
107 |
35 |
1 |
0 |
0 |
| VODI |
0 |
242 |
22 |
215 |
111 |
18 |
0 |
0 |
| ODI |
0 |
267 |
39 |
832 |
925 |
395 |
0 |
0 |
| CDI |
0 |
105 |
31 |
832 |
2835 |
2614 |
0 |
0 |
| VCDI |
0 |
12 |
1 |
171 |
1671 |
2715 |
0 |
0 |
|
Date: 2025-09-08:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11623 |
5880 |
44 |
433 |
154 |
3 |
0 |
0 |
| OW |
0 |
97 |
9 |
65 |
42 |
4 |
0 |
0 |
| VODI |
0 |
202 |
14 |
195 |
102 |
22 |
0 |
0 |
| ODI |
0 |
234 |
32 |
563 |
580 |
365 |
1 |
0 |
| CDI |
0 |
60 |
21 |
865 |
2440 |
2503 |
14 |
0 |
| VCDI |
0 |
15 |
7 |
228 |
1847 |
3562 |
20 |
0 |
|
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