Validation of sea ice concentration - Full domain
Reference date: 2025-11-20
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-14:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
101958 |
13148 |
437 |
427 |
110 |
0 |
0 |
0 |
| OW |
16 |
414 |
145 |
470 |
335 |
19 |
0 |
0 |
| VODI |
2 |
540 |
160 |
477 |
560 |
323 |
2 |
0 |
| ODI |
0 |
130 |
101 |
307 |
747 |
600 |
25 |
0 |
| CDI |
0 |
10 |
16 |
98 |
480 |
1765 |
419 |
19 |
| VCDI |
0 |
1 |
1 |
8 |
172 |
5400 |
27003 |
30170 |
|
|
Date: 2025-11-16:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
101924 |
12735 |
415 |
481 |
95 |
3 |
0 |
0 |
| OW |
23 |
404 |
134 |
412 |
269 |
13 |
0 |
0 |
| VODI |
6 |
311 |
134 |
416 |
642 |
215 |
1 |
0 |
| ODI |
0 |
148 |
90 |
387 |
855 |
390 |
11 |
0 |
| CDI |
0 |
17 |
17 |
205 |
955 |
1889 |
194 |
0 |
| VCDI |
0 |
0 |
1 |
10 |
381 |
8727 |
28390 |
25715 |
|
|
Date: 2025-11-18:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
98676 |
14722 |
435 |
590 |
268 |
12 |
0 |
0 |
| OW |
11 |
437 |
131 |
253 |
392 |
65 |
0 |
0 |
| VODI |
3 |
379 |
180 |
375 |
539 |
230 |
4 |
0 |
| ODI |
0 |
131 |
80 |
331 |
877 |
624 |
52 |
0 |
| CDI |
0 |
20 |
18 |
169 |
954 |
2483 |
458 |
2 |
| VCDI |
0 |
0 |
0 |
15 |
202 |
8336 |
28606 |
25955 |
|
|
Date: 2025-11-20:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99874 |
12704 |
363 |
433 |
110 |
5 |
0 |
0 |
| OW |
10 |
454 |
126 |
328 |
423 |
80 |
0 |
0 |
| VODI |
0 |
514 |
147 |
361 |
303 |
201 |
3 |
0 |
| ODI |
0 |
214 |
144 |
521 |
781 |
569 |
40 |
0 |
| CDI |
0 |
36 |
21 |
152 |
781 |
2651 |
639 |
1 |
| VCDI |
0 |
0 |
0 |
3 |
118 |
6798 |
29962 |
27145 |
|
|
Date: 2025-11-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
98946 |
12629 |
450 |
540 |
91 |
2 |
0 |
0 |
| OW |
3 |
458 |
104 |
285 |
429 |
72 |
2 |
0 |
| VODI |
1 |
437 |
173 |
401 |
396 |
389 |
4 |
0 |
| ODI |
0 |
134 |
97 |
543 |
825 |
657 |
53 |
0 |
| CDI |
0 |
16 |
6 |
69 |
866 |
2969 |
852 |
10 |
| VCDI |
0 |
0 |
0 |
11 |
107 |
4026 |
31283 |
28679 |
|
|
Date: 2025-11-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
98213 |
12585 |
476 |
618 |
179 |
54 |
0 |
0 |
| OW |
4 |
410 |
151 |
348 |
267 |
113 |
0 |
0 |
| VODI |
1 |
395 |
171 |
509 |
480 |
340 |
61 |
0 |
| ODI |
0 |
82 |
68 |
383 |
953 |
743 |
77 |
0 |
| CDI |
0 |
7 |
1 |
32 |
749 |
2645 |
1151 |
7 |
| VCDI |
0 |
4 |
0 |
1 |
214 |
3911 |
28444 |
32168 |
|
|
Date: 2025-11-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97272 |
13016 |
465 |
642 |
132 |
2 |
0 |
0 |
| OW |
11 |
385 |
151 |
350 |
309 |
35 |
0 |
0 |
| VODI |
1 |
354 |
156 |
421 |
417 |
188 |
57 |
0 |
| ODI |
0 |
182 |
131 |
473 |
863 |
636 |
138 |
0 |
| CDI |
0 |
15 |
26 |
144 |
613 |
1995 |
1209 |
0 |
| VCDI |
0 |
3 |
1 |
13 |
272 |
4283 |
28808 |
32846 |
|
|
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 |
97162 |
12518 |
449 |
438 |
67 |
0 |
0 |
0 |
| OW |
26 |
512 |
172 |
341 |
315 |
13 |
0 |
0 |
| VODI |
23 |
420 |
116 |
347 |
364 |
144 |
2 |
0 |
| ODI |
5 |
318 |
162 |
598 |
789 |
464 |
61 |
0 |
| CDI |
0 |
86 |
41 |
308 |
911 |
1784 |
876 |
2 |
| VCDI |
0 |
0 |
0 |
18 |
263 |
5710 |
31127 |
30063 |
|
|
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