Validation of sea ice concentration - Full domain
Reference date: 2025-11-27
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99202 |
12858 |
413 |
498 |
80 |
4 |
0 |
0 |
| OW |
9 |
457 |
121 |
340 |
424 |
81 |
0 |
0 |
| VODI |
0 |
467 |
165 |
390 |
384 |
252 |
4 |
0 |
| ODI |
0 |
141 |
112 |
527 |
826 |
530 |
66 |
0 |
| CDI |
0 |
38 |
14 |
134 |
1170 |
2307 |
700 |
3 |
| VCDI |
0 |
0 |
0 |
12 |
221 |
5415 |
30531 |
28111 |
|
|
Date: 2025-11-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
98960 |
12325 |
407 |
532 |
204 |
6 |
0 |
0 |
| OW |
4 |
425 |
127 |
292 |
293 |
102 |
0 |
0 |
| VODI |
0 |
426 |
162 |
462 |
454 |
403 |
7 |
0 |
| ODI |
0 |
107 |
72 |
422 |
972 |
667 |
54 |
0 |
| CDI |
0 |
10 |
7 |
60 |
642 |
3056 |
1016 |
10 |
| VCDI |
0 |
4 |
1 |
1 |
64 |
3650 |
29262 |
31339 |
|
|
Date: 2025-11-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97742 |
12844 |
464 |
654 |
141 |
1 |
0 |
0 |
| OW |
3 |
384 |
175 |
419 |
272 |
41 |
0 |
0 |
| VODI |
2 |
366 |
175 |
494 |
406 |
245 |
64 |
0 |
| ODI |
0 |
133 |
119 |
481 |
832 |
676 |
102 |
0 |
| CDI |
0 |
10 |
3 |
105 |
542 |
2285 |
1262 |
3 |
| VCDI |
0 |
2 |
1 |
1 |
299 |
4038 |
28446 |
32775 |
|
|
Date: 2025-11-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
96966 |
13040 |
431 |
475 |
161 |
1 |
0 |
0 |
| OW |
16 |
393 |
140 |
347 |
305 |
20 |
0 |
0 |
| VODI |
7 |
391 |
145 |
372 |
369 |
181 |
17 |
0 |
| ODI |
0 |
269 |
160 |
506 |
820 |
565 |
115 |
0 |
| CDI |
0 |
31 |
26 |
226 |
747 |
1890 |
1085 |
1 |
| VCDI |
0 |
0 |
0 |
2 |
280 |
4653 |
31594 |
30260 |
|
|
Date: 2025-11-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
94883 |
14549 |
414 |
395 |
86 |
0 |
0 |
0 |
| OW |
25 |
518 |
169 |
328 |
277 |
37 |
0 |
0 |
| VODI |
0 |
507 |
128 |
370 |
277 |
106 |
9 |
0 |
| ODI |
0 |
460 |
170 |
625 |
806 |
294 |
49 |
0 |
| CDI |
0 |
163 |
84 |
294 |
1083 |
1996 |
618 |
5 |
| VCDI |
0 |
2 |
0 |
10 |
251 |
6890 |
30142 |
29987 |
|
|
Date: 2025-12-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
91785 |
16433 |
399 |
472 |
216 |
3 |
0 |
0 |
| OW |
26 |
478 |
134 |
278 |
354 |
39 |
0 |
0 |
| VODI |
5 |
552 |
185 |
392 |
343 |
128 |
2 |
0 |
| ODI |
0 |
675 |
152 |
545 |
739 |
323 |
72 |
0 |
| CDI |
0 |
250 |
67 |
214 |
940 |
2358 |
723 |
4 |
| VCDI |
0 |
0 |
2 |
27 |
141 |
7529 |
32222 |
27800 |
|
|
Date: 2025-12-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
91062 |
15716 |
461 |
707 |
196 |
6 |
0 |
0 |
| OW |
38 |
371 |
133 |
262 |
386 |
78 |
0 |
0 |
| VODI |
22 |
359 |
167 |
427 |
566 |
240 |
5 |
0 |
| ODI |
0 |
521 |
140 |
654 |
1238 |
570 |
99 |
0 |
| CDI |
0 |
74 |
21 |
248 |
752 |
1926 |
891 |
2 |
| VCDI |
0 |
1 |
0 |
29 |
95 |
5124 |
32361 |
31059 |
|
|
Date: 2025-12-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
89238 |
16049 |
483 |
700 |
141 |
3 |
0 |
0 |
| OW |
81 |
240 |
91 |
385 |
402 |
27 |
0 |
0 |
| VODI |
38 |
267 |
149 |
436 |
620 |
305 |
4 |
0 |
| ODI |
11 |
401 |
96 |
588 |
1370 |
503 |
47 |
0 |
| CDI |
0 |
134 |
10 |
98 |
1352 |
1855 |
834 |
0 |
| VCDI |
0 |
0 |
0 |
30 |
246 |
4119 |
32112 |
33542 |
|
|
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