Validation of sea ice concentration - Asian sector
Bulletin date: 2025-10-02
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-26:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11295 |
5186 |
82 |
25 |
0 |
0 |
0 |
0 |
| OW |
1 |
333 |
180 |
397 |
155 |
31 |
0 |
0 |
| VODI |
0 |
21 |
36 |
178 |
442 |
249 |
3 |
0 |
| ODI |
0 |
0 |
0 |
36 |
291 |
465 |
36 |
0 |
| CDI |
0 |
0 |
0 |
7 |
195 |
846 |
541 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
715 |
7672 |
2652 |
|
...date precedes bulletin
|
Date: 2025-09-28:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11245 |
4919 |
29 |
14 |
0 |
0 |
0 |
0 |
| OW |
1 |
670 |
158 |
209 |
64 |
0 |
0 |
0 |
| VODI |
0 |
102 |
87 |
293 |
414 |
181 |
28 |
0 |
| ODI |
0 |
17 |
14 |
76 |
275 |
290 |
127 |
0 |
| CDI |
0 |
0 |
3 |
28 |
272 |
708 |
417 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
1164 |
8665 |
1606 |
|
...date precedes bulletin
|
Date: 2025-09-30:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11157 |
5482 |
70 |
35 |
1 |
0 |
0 |
0 |
| OW |
1 |
520 |
147 |
189 |
62 |
10 |
0 |
0 |
| VODI |
0 |
143 |
88 |
251 |
240 |
112 |
0 |
0 |
| ODI |
0 |
43 |
37 |
106 |
237 |
230 |
26 |
0 |
| CDI |
0 |
4 |
21 |
90 |
253 |
714 |
186 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
146 |
2364 |
8684 |
432 |
|
...date precedes bulletin
|
Date: 2025-10-02:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-04:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-06:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-08:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-10:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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