Validation of sea ice concentration - Full domain
Reference date: 2025-12-04
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97154 |
12530 |
446 |
441 |
77 |
0 |
0 |
0 |
| OW |
27 |
504 |
175 |
336 |
305 |
13 |
0 |
0 |
| VODI |
24 |
416 |
116 |
350 |
360 |
144 |
1 |
0 |
| ODI |
4 |
319 |
163 |
595 |
763 |
450 |
62 |
0 |
| CDI |
0 |
85 |
40 |
309 |
939 |
1793 |
866 |
3 |
| VCDI |
0 |
0 |
0 |
19 |
265 |
5715 |
31137 |
30062 |
|
|
Date: 2025-11-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
93197 |
15636 |
392 |
483 |
100 |
2 |
0 |
0 |
| OW |
35 |
568 |
160 |
393 |
208 |
84 |
0 |
0 |
| VODI |
3 |
616 |
165 |
383 |
292 |
120 |
10 |
0 |
| ODI |
0 |
488 |
163 |
615 |
680 |
324 |
63 |
0 |
| CDI |
0 |
237 |
74 |
240 |
844 |
2396 |
687 |
3 |
| VCDI |
0 |
0 |
0 |
12 |
195 |
7438 |
29400 |
30302 |
|
|
Date: 2025-12-02:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
92094 |
15511 |
409 |
585 |
155 |
1 |
0 |
0 |
| OW |
39 |
406 |
147 |
264 |
385 |
12 |
0 |
0 |
| VODI |
7 |
453 |
183 |
436 |
498 |
145 |
0 |
0 |
| ODI |
0 |
641 |
142 |
635 |
967 |
419 |
65 |
0 |
| CDI |
0 |
234 |
40 |
231 |
890 |
2053 |
825 |
4 |
| VCDI |
0 |
3 |
0 |
4 |
144 |
6570 |
30940 |
30471 |
|
|
Date: 2025-12-04:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
90164 |
15735 |
532 |
705 |
125 |
3 |
0 |
0 |
| OW |
62 |
303 |
111 |
396 |
403 |
69 |
0 |
0 |
| VODI |
36 |
271 |
144 |
441 |
582 |
277 |
3 |
0 |
| ODI |
2 |
479 |
122 |
596 |
1427 |
597 |
69 |
0 |
| CDI |
0 |
98 |
12 |
176 |
984 |
1740 |
861 |
2 |
| VCDI |
0 |
0 |
0 |
29 |
146 |
4442 |
33116 |
31748 |
|
|
Date: 2025-12-06:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
88564 |
16382 |
476 |
559 |
165 |
3 |
0 |
0 |
| OW |
79 |
272 |
117 |
405 |
374 |
31 |
0 |
0 |
| VODI |
35 |
300 |
180 |
493 |
606 |
220 |
0 |
0 |
| ODI |
10 |
457 |
106 |
548 |
1188 |
724 |
45 |
0 |
| CDI |
2 |
17 |
4 |
82 |
1072 |
2200 |
753 |
0 |
| VCDI |
0 |
0 |
0 |
15 |
357 |
4152 |
33935 |
32080 |
|
|
Date: 2025-12-08:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
88095 |
16274 |
476 |
510 |
157 |
4 |
0 |
0 |
| OW |
105 |
400 |
159 |
350 |
293 |
70 |
0 |
0 |
| VODI |
15 |
421 |
179 |
532 |
525 |
188 |
1 |
0 |
| ODI |
0 |
352 |
137 |
516 |
1067 |
765 |
22 |
0 |
| CDI |
0 |
1 |
1 |
89 |
989 |
2219 |
753 |
1 |
| VCDI |
0 |
0 |
0 |
9 |
395 |
4529 |
28266 |
38143 |
|
|
Date: 2025-12-10:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87936 |
16073 |
356 |
474 |
181 |
34 |
0 |
0 |
| OW |
88 |
414 |
96 |
284 |
265 |
51 |
0 |
0 |
| VODI |
35 |
386 |
191 |
500 |
453 |
221 |
2 |
0 |
| ODI |
2 |
132 |
89 |
441 |
959 |
830 |
39 |
0 |
| CDI |
0 |
12 |
11 |
105 |
810 |
2274 |
742 |
4 |
| VCDI |
0 |
1 |
0 |
8 |
174 |
3845 |
32880 |
35610 |
|
|
Date: 2025-12-12:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
86488 |
16656 |
417 |
527 |
56 |
0 |
0 |
0 |
| OW |
115 |
451 |
110 |
288 |
201 |
71 |
2 |
0 |
| VODI |
45 |
360 |
158 |
375 |
413 |
197 |
0 |
0 |
| ODI |
9 |
123 |
70 |
345 |
732 |
670 |
60 |
0 |
| CDI |
0 |
68 |
26 |
182 |
990 |
2291 |
708 |
0 |
| VCDI |
0 |
1 |
0 |
5 |
380 |
5533 |
31297 |
36588 |
|
|
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