Validation of sea ice concentration - Asian sector
Bulletin date: 2025-09-30
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-30:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11699 |
4376 |
3 |
2 |
0 |
0 |
0 |
0 |
| OW |
4 |
169 |
0 |
8 |
2 |
0 |
0 |
0 |
| VODI |
1 |
474 |
5 |
31 |
9 |
0 |
0 |
0 |
| ODI |
0 |
659 |
27 |
131 |
56 |
5 |
2 |
0 |
| CDI |
0 |
345 |
22 |
296 |
211 |
320 |
130 |
1 |
| VCDI |
0 |
103 |
16 |
217 |
656 |
3078 |
8852 |
336 |
|
Date: 2025-10-02:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10532 |
5681 |
1 |
25 |
3 |
0 |
0 |
0 |
| OW |
3 |
195 |
3 |
17 |
8 |
0 |
0 |
0 |
| VODI |
2 |
360 |
8 |
51 |
14 |
0 |
0 |
0 |
| ODI |
0 |
441 |
16 |
135 |
50 |
9 |
7 |
0 |
| CDI |
0 |
371 |
15 |
221 |
236 |
275 |
191 |
1 |
| VCDI |
0 |
113 |
13 |
262 |
487 |
2578 |
7678 |
2244 |
|
Date: 2025-10-04:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9989 |
6140 |
9 |
55 |
4 |
0 |
0 |
0 |
| OW |
2 |
204 |
1 |
24 |
13 |
1 |
0 |
0 |
| VODI |
0 |
339 |
7 |
63 |
16 |
0 |
0 |
0 |
| ODI |
0 |
334 |
13 |
129 |
52 |
9 |
1 |
0 |
| CDI |
0 |
339 |
17 |
231 |
185 |
241 |
166 |
3 |
| VCDI |
0 |
119 |
9 |
321 |
517 |
2794 |
9258 |
641 |
|
Date: 2025-10-06:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9069 |
6568 |
28 |
218 |
29 |
0 |
0 |
0 |
| OW |
0 |
184 |
3 |
36 |
14 |
3 |
0 |
0 |
| VODI |
0 |
270 |
2 |
76 |
28 |
11 |
0 |
0 |
| ODI |
0 |
291 |
3 |
104 |
59 |
24 |
2 |
0 |
| CDI |
0 |
292 |
13 |
211 |
162 |
115 |
85 |
0 |
| VCDI |
0 |
207 |
11 |
314 |
706 |
4023 |
9085 |
0 |
|
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