Validation of sea ice concentration - Asian sector
Reference date: 2025-09-04
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11407 |
5891 |
278 |
214 |
9 |
0 |
0 |
0 |
| OW |
0 |
535 |
172 |
388 |
87 |
2 |
0 |
0 |
| VODI |
0 |
42 |
115 |
1008 |
563 |
36 |
0 |
0 |
| ODI |
0 |
0 |
0 |
454 |
5377 |
3505 |
9 |
0 |
| CDI |
0 |
0 |
0 |
0 |
261 |
1698 |
23 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
4 |
2 |
0 |
|
|
Date: 2025-08-31:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11425 |
5929 |
268 |
217 |
19 |
0 |
0 |
0 |
| OW |
0 |
511 |
191 |
417 |
106 |
0 |
0 |
0 |
| VODI |
0 |
32 |
94 |
1078 |
611 |
31 |
0 |
0 |
| ODI |
0 |
0 |
0 |
531 |
5893 |
3281 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
208 |
1226 |
6 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
6 |
0 |
0 |
|
|
Date: 2025-09-02:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11277 |
6061 |
311 |
311 |
38 |
0 |
0 |
0 |
| OW |
0 |
458 |
189 |
476 |
147 |
5 |
0 |
0 |
| VODI |
0 |
19 |
71 |
1016 |
624 |
13 |
0 |
0 |
| ODI |
0 |
0 |
1 |
606 |
5917 |
2598 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
422 |
1503 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
16 |
0 |
0 |
|
|
Date: 2025-09-04:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11264 |
6128 |
342 |
341 |
44 |
0 |
0 |
0 |
| OW |
0 |
422 |
163 |
477 |
156 |
0 |
0 |
0 |
| VODI |
0 |
26 |
74 |
1007 |
618 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
576 |
5129 |
2905 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
481 |
1887 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
29 |
0 |
0 |
|
|
Date: 2025-09-06:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11261 |
5969 |
336 |
304 |
8 |
0 |
0 |
0 |
| OW |
0 |
391 |
165 |
497 |
209 |
9 |
0 |
0 |
| VODI |
0 |
15 |
78 |
1032 |
630 |
46 |
0 |
0 |
| ODI |
0 |
0 |
0 |
571 |
4348 |
2529 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
616 |
3047 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
19 |
0 |
0 |
|
|
Date: 2025-09-08:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11329 |
5853 |
293 |
266 |
8 |
0 |
0 |
0 |
| OW |
0 |
373 |
168 |
505 |
162 |
16 |
0 |
0 |
| VODI |
0 |
2 |
50 |
1034 |
634 |
32 |
0 |
0 |
| ODI |
0 |
0 |
0 |
507 |
3198 |
1592 |
2 |
0 |
| CDI |
0 |
0 |
0 |
1 |
1259 |
4748 |
19 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
29 |
0 |
0 |
|
|
Date: 2025-09-10:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11297 |
5787 |
294 |
289 |
27 |
0 |
0 |
0 |
| OW |
0 |
383 |
161 |
486 |
180 |
11 |
0 |
0 |
| VODI |
0 |
19 |
92 |
943 |
602 |
59 |
0 |
0 |
| ODI |
0 |
0 |
0 |
376 |
1588 |
839 |
1 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1488 |
6793 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
332 |
2 |
0 |
|
|
Date: 2025-09-12:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11369 |
5715 |
265 |
243 |
7 |
0 |
0 |
0 |
| OW |
0 |
366 |
130 |
521 |
171 |
7 |
0 |
0 |
| VODI |
0 |
55 |
72 |
859 |
594 |
74 |
0 |
0 |
| ODI |
0 |
0 |
2 |
236 |
942 |
511 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
940 |
5617 |
237 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
2136 |
1005 |
0 |
|
|
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