Validation of sea ice concentration - Asian sector
Bulletin date: 2025-10-09
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-03:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-05:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-07:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-09:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-11:
| 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 |
10748 |
5296 |
81 |
62 |
0 |
0 |
0 |
0 |
| OW |
98 |
656 |
252 |
356 |
48 |
0 |
0 |
0 |
| VODI |
7 |
149 |
84 |
508 |
268 |
4 |
0 |
0 |
| ODI |
0 |
108 |
10 |
104 |
463 |
66 |
7 |
0 |
| CDI |
0 |
75 |
70 |
186 |
590 |
1135 |
308 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
90 |
6910 |
4076 |
261 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10805 |
5325 |
119 |
82 |
1 |
0 |
0 |
0 |
| OW |
44 |
629 |
203 |
392 |
53 |
0 |
0 |
0 |
| VODI |
4 |
153 |
90 |
434 |
320 |
4 |
0 |
0 |
| ODI |
0 |
88 |
13 |
113 |
405 |
110 |
14 |
0 |
| CDI |
0 |
89 |
72 |
180 |
562 |
1130 |
381 |
0 |
| VCDI |
0 |
0 |
0 |
35 |
118 |
6871 |
3996 |
261 |
|
Date: 2025-10-13:
| 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 |
10475 |
5601 |
138 |
62 |
0 |
0 |
0 |
0 |
| OW |
89 |
869 |
273 |
715 |
18 |
0 |
0 |
0 |
| VODI |
1 |
77 |
38 |
422 |
339 |
2 |
0 |
0 |
| ODI |
1 |
2 |
16 |
162 |
667 |
59 |
0 |
0 |
| CDI |
0 |
0 |
0 |
16 |
599 |
2160 |
125 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
4935 |
5124 |
110 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10486 |
5275 |
131 |
142 |
1 |
0 |
0 |
0 |
| OW |
77 |
904 |
143 |
305 |
57 |
0 |
0 |
0 |
| VODI |
2 |
208 |
127 |
481 |
237 |
0 |
0 |
0 |
| ODI |
0 |
70 |
17 |
202 |
450 |
58 |
2 |
0 |
| CDI |
1 |
92 |
47 |
210 |
736 |
1098 |
179 |
0 |
| VCDI |
0 |
0 |
0 |
37 |
143 |
6000 |
5068 |
110 |
|
Date: 2025-10-15:
| 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 |
8989 |
6319 |
215 |
240 |
18 |
0 |
0 |
0 |
| OW |
167 |
610 |
199 |
859 |
97 |
0 |
0 |
0 |
| VODI |
33 |
19 |
22 |
348 |
629 |
11 |
0 |
0 |
| ODI |
1 |
0 |
2 |
112 |
513 |
166 |
0 |
0 |
| CDI |
0 |
0 |
0 |
102 |
350 |
1522 |
360 |
0 |
| VCDI |
1 |
0 |
0 |
36 |
411 |
5807 |
4685 |
253 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8959 |
5727 |
139 |
267 |
34 |
0 |
0 |
0 |
| OW |
167 |
852 |
178 |
362 |
109 |
0 |
0 |
0 |
| VODI |
63 |
209 |
73 |
496 |
381 |
8 |
0 |
0 |
| ODI |
1 |
92 |
4 |
167 |
427 |
131 |
0 |
0 |
| CDI |
0 |
50 |
10 |
129 |
330 |
665 |
194 |
0 |
| VCDI |
1 |
18 |
34 |
276 |
737 |
6702 |
4851 |
253 |
|
Date: 2025-10-17:
| 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 |
8988 |
5485 |
218 |
188 |
96 |
0 |
0 |
0 |
| OW |
350 |
752 |
209 |
671 |
166 |
10 |
0 |
0 |
| VODI |
101 |
114 |
57 |
453 |
662 |
103 |
0 |
0 |
| ODI |
1 |
36 |
27 |
86 |
333 |
348 |
19 |
0 |
| CDI |
0 |
4 |
24 |
225 |
326 |
1166 |
678 |
0 |
| VCDI |
1 |
0 |
0 |
1 |
127 |
5900 |
4669 |
502 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8893 |
4605 |
161 |
294 |
145 |
8 |
0 |
0 |
| OW |
267 |
1015 |
138 |
284 |
156 |
9 |
0 |
0 |
| VODI |
233 |
343 |
127 |
441 |
362 |
43 |
0 |
0 |
| ODI |
46 |
142 |
31 |
165 |
365 |
211 |
2 |
0 |
| CDI |
1 |
135 |
18 |
134 |
294 |
425 |
152 |
0 |
| VCDI |
1 |
151 |
60 |
306 |
388 |
6831 |
5212 |
502 |
|
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