Validation of sea ice concentration - Asian sector
Bulletin date: 2025-11-18
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-18:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1365 |
1706 |
0 |
10 |
0 |
0 |
0 |
0 |
| OW |
22 |
87 |
0 |
2 |
0 |
0 |
0 |
0 |
| VODI |
61 |
201 |
0 |
5 |
0 |
0 |
0 |
0 |
| ODI |
208 |
929 |
0 |
7 |
9 |
13 |
0 |
0 |
| CDI |
23 |
624 |
8 |
63 |
73 |
102 |
46 |
9 |
| VCDI |
0 |
371 |
11 |
336 |
915 |
4542 |
12004 |
8494 |
|
Date: 2025-11-20:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
799 |
1822 |
1 |
7 |
1 |
0 |
0 |
0 |
| OW |
21 |
81 |
0 |
5 |
0 |
0 |
0 |
0 |
| VODI |
33 |
165 |
0 |
12 |
2 |
0 |
0 |
0 |
| ODI |
31 |
171 |
1 |
9 |
9 |
10 |
3 |
0 |
| CDI |
44 |
486 |
1 |
21 |
17 |
93 |
42 |
11 |
| VCDI |
17 |
1371 |
16 |
377 |
576 |
3177 |
12008 |
10806 |
|
Date: 2025-11-22:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
669 |
1823 |
0 |
14 |
8 |
0 |
0 |
0 |
| OW |
1 |
88 |
0 |
2 |
1 |
0 |
0 |
0 |
| VODI |
1 |
150 |
0 |
3 |
1 |
0 |
0 |
0 |
| ODI |
0 |
177 |
3 |
19 |
6 |
8 |
2 |
0 |
| CDI |
1 |
196 |
2 |
29 |
26 |
126 |
89 |
12 |
| VCDI |
1 |
1356 |
32 |
479 |
638 |
2323 |
12114 |
11846 |
|
Date: 2025-11-24:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
366 |
2096 |
1 |
30 |
19 |
1 |
0 |
0 |
| OW |
2 |
83 |
1 |
5 |
1 |
0 |
0 |
0 |
| VODI |
3 |
107 |
0 |
7 |
6 |
1 |
0 |
0 |
| ODI |
0 |
143 |
1 |
14 |
5 |
5 |
2 |
0 |
| CDI |
0 |
191 |
5 |
35 |
32 |
39 |
109 |
10 |
| VCDI |
0 |
1065 |
42 |
621 |
632 |
1944 |
13392 |
11230 |
|
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