Validation of sea ice concentration - Asian sector
Reference date: 2025-10-23
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7713 |
7074 |
268 |
332 |
60 |
0 |
0 |
0 |
| OW |
1 |
321 |
69 |
327 |
380 |
39 |
1 |
0 |
| VODI |
0 |
293 |
128 |
335 |
224 |
74 |
5 |
0 |
| ODI |
0 |
44 |
19 |
127 |
552 |
232 |
9 |
0 |
| CDI |
0 |
0 |
1 |
7 |
303 |
2453 |
476 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
3659 |
6313 |
240 |
|
|
Date: 2025-10-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7540 |
6365 |
334 |
388 |
23 |
0 |
0 |
0 |
| OW |
11 |
436 |
110 |
366 |
426 |
164 |
0 |
0 |
| VODI |
7 |
344 |
141 |
436 |
195 |
269 |
28 |
0 |
| ODI |
0 |
41 |
14 |
190 |
433 |
290 |
71 |
0 |
| CDI |
0 |
0 |
0 |
3 |
142 |
2705 |
593 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
2753 |
6350 |
912 |
|
|
Date: 2025-10-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7434 |
4634 |
328 |
571 |
341 |
18 |
0 |
0 |
| OW |
6 |
331 |
110 |
326 |
474 |
319 |
10 |
0 |
| VODI |
6 |
277 |
129 |
879 |
212 |
371 |
138 |
0 |
| ODI |
0 |
31 |
22 |
207 |
555 |
343 |
134 |
0 |
| CDI |
0 |
0 |
0 |
1 |
121 |
2742 |
600 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2042 |
6907 |
1462 |
|
|
Date: 2025-10-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7130 |
3049 |
314 |
572 |
134 |
1 |
0 |
0 |
| OW |
5 |
199 |
43 |
162 |
491 |
257 |
1 |
0 |
| VODI |
9 |
277 |
169 |
573 |
303 |
651 |
27 |
0 |
| ODI |
0 |
84 |
107 |
761 |
873 |
488 |
109 |
0 |
| CDI |
0 |
2 |
4 |
51 |
588 |
1045 |
369 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
23 |
3976 |
6424 |
2810 |
|
|
Date: 2025-10-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6938 |
2516 |
255 |
494 |
101 |
4 |
0 |
0 |
| OW |
8 |
188 |
38 |
234 |
318 |
34 |
0 |
0 |
| VODI |
1 |
205 |
131 |
208 |
316 |
290 |
3 |
0 |
| ODI |
0 |
37 |
44 |
608 |
961 |
404 |
78 |
0 |
| CDI |
0 |
0 |
2 |
29 |
1014 |
1260 |
221 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
154 |
4347 |
8386 |
2254 |
|
|
Date: 2025-10-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6253 |
2726 |
247 |
490 |
81 |
0 |
0 |
0 |
| OW |
8 |
121 |
41 |
292 |
269 |
0 |
0 |
0 |
| VODI |
0 |
96 |
76 |
195 |
273 |
99 |
0 |
0 |
| ODI |
0 |
57 |
42 |
377 |
611 |
213 |
3 |
0 |
| CDI |
0 |
0 |
0 |
81 |
1014 |
999 |
140 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
325 |
5331 |
8985 |
2626 |
|
|
Date: 2025-10-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5822 |
2479 |
84 |
275 |
398 |
72 |
0 |
0 |
| OW |
0 |
87 |
20 |
58 |
321 |
142 |
0 |
0 |
| VODI |
0 |
76 |
36 |
70 |
270 |
275 |
2 |
0 |
| ODI |
0 |
62 |
23 |
119 |
244 |
395 |
24 |
0 |
| CDI |
0 |
1 |
6 |
41 |
441 |
1082 |
398 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
50 |
4290 |
11340 |
3078 |
|
|
Date: 2025-10-31:
| Best estimate |
|
|
...observations not yet available
|
|
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