Validation of sea ice concentration - Asian sector
Reference date: 2025-09-11
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11275 |
6041 |
333 |
312 |
18 |
0 |
0 |
0 |
| OW |
0 |
450 |
168 |
466 |
198 |
1 |
0 |
0 |
| VODI |
0 |
22 |
80 |
1036 |
599 |
20 |
0 |
0 |
| ODI |
0 |
0 |
0 |
550 |
4932 |
2905 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
486 |
2167 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
21 |
0 |
0 |
|
|
Date: 2025-09-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11282 |
5928 |
312 |
270 |
6 |
0 |
0 |
0 |
| OW |
0 |
378 |
170 |
512 |
175 |
6 |
0 |
0 |
| VODI |
0 |
11 |
52 |
1089 |
618 |
24 |
0 |
0 |
| ODI |
0 |
0 |
0 |
524 |
3821 |
1878 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
993 |
3997 |
10 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
24 |
0 |
0 |
|
|
Date: 2025-09-09:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11316 |
5814 |
288 |
266 |
17 |
0 |
0 |
0 |
| OW |
0 |
384 |
169 |
520 |
154 |
11 |
0 |
0 |
| VODI |
0 |
14 |
69 |
1036 |
566 |
40 |
0 |
0 |
| ODI |
0 |
0 |
0 |
488 |
2563 |
1147 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1650 |
5491 |
6 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
67 |
0 |
0 |
|
|
Date: 2025-09-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11322 |
5799 |
269 |
257 |
15 |
0 |
0 |
0 |
| OW |
0 |
369 |
115 |
532 |
175 |
6 |
0 |
0 |
| VODI |
0 |
65 |
82 |
852 |
637 |
69 |
0 |
0 |
| ODI |
0 |
0 |
2 |
284 |
1064 |
661 |
1 |
0 |
| CDI |
0 |
0 |
0 |
3 |
986 |
6369 |
610 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
1305 |
226 |
0 |
|
|
Date: 2025-09-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11360 |
5759 |
224 |
239 |
16 |
2 |
0 |
0 |
| OW |
0 |
363 |
119 |
518 |
161 |
5 |
0 |
0 |
| VODI |
0 |
46 |
65 |
835 |
572 |
71 |
1 |
0 |
| ODI |
0 |
1 |
1 |
249 |
946 |
517 |
40 |
0 |
| CDI |
0 |
0 |
0 |
3 |
938 |
4806 |
448 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
2577 |
1197 |
0 |
|
|
Date: 2025-09-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11346 |
5862 |
246 |
262 |
25 |
0 |
0 |
0 |
| OW |
0 |
306 |
129 |
466 |
169 |
14 |
0 |
0 |
| VODI |
0 |
21 |
58 |
730 |
533 |
101 |
2 |
0 |
| ODI |
0 |
0 |
3 |
126 |
831 |
423 |
80 |
0 |
| CDI |
0 |
0 |
0 |
0 |
454 |
5175 |
547 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
2445 |
1723 |
0 |
|
|
Date: 2025-09-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10393 |
7132 |
234 |
187 |
16 |
0 |
0 |
0 |
| OW |
0 |
341 |
141 |
428 |
97 |
0 |
0 |
0 |
| VODI |
0 |
20 |
52 |
745 |
409 |
23 |
0 |
0 |
| ODI |
0 |
0 |
3 |
160 |
753 |
345 |
7 |
0 |
| CDI |
0 |
0 |
0 |
14 |
344 |
4850 |
368 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
2391 |
2621 |
0 |
|
|
Date: 2025-09-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11256 |
6673 |
174 |
153 |
0 |
0 |
0 |
0 |
| OW |
0 |
244 |
133 |
402 |
72 |
2 |
0 |
0 |
| VODI |
0 |
61 |
75 |
591 |
311 |
74 |
0 |
0 |
| ODI |
0 |
0 |
4 |
184 |
625 |
461 |
17 |
0 |
| CDI |
0 |
0 |
0 |
4 |
385 |
3309 |
1080 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
3168 |
2616 |
0 |
|
|
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