Validation of sea ice concentration - Full domain
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 |
115718 |
16698 |
708 |
868 |
139 |
0 |
0 |
0 |
| OW |
7 |
434 |
182 |
792 |
845 |
75 |
1 |
0 |
| VODI |
1 |
321 |
174 |
707 |
682 |
383 |
5 |
0 |
| ODI |
0 |
44 |
28 |
248 |
1045 |
699 |
61 |
0 |
| CDI |
0 |
0 |
1 |
24 |
584 |
3860 |
984 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
8211 |
24977 |
7501 |
|
|
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 |
114799 |
16124 |
693 |
863 |
68 |
0 |
0 |
0 |
| OW |
25 |
563 |
192 |
864 |
1017 |
193 |
0 |
0 |
| VODI |
9 |
404 |
185 |
719 |
813 |
498 |
28 |
0 |
| ODI |
0 |
43 |
32 |
316 |
876 |
769 |
89 |
0 |
| CDI |
0 |
0 |
0 |
26 |
528 |
5084 |
1079 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
93 |
8022 |
22134 |
9860 |
|
|
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 |
114788 |
13540 |
808 |
1162 |
422 |
22 |
0 |
0 |
| OW |
25 |
495 |
231 |
672 |
914 |
360 |
13 |
0 |
| VODI |
8 |
344 |
192 |
1161 |
845 |
604 |
178 |
0 |
| ODI |
0 |
32 |
29 |
363 |
1114 |
778 |
172 |
0 |
| CDI |
0 |
0 |
0 |
15 |
635 |
5318 |
1123 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
72 |
7105 |
21702 |
11769 |
|
|
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 |
113126 |
12721 |
669 |
1080 |
197 |
1 |
0 |
0 |
| OW |
5 |
401 |
164 |
563 |
822 |
281 |
1 |
0 |
| VODI |
9 |
328 |
227 |
896 |
797 |
880 |
42 |
0 |
| ODI |
0 |
87 |
122 |
870 |
1508 |
962 |
173 |
0 |
| CDI |
0 |
2 |
6 |
67 |
1033 |
2711 |
1050 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
83 |
7994 |
26250 |
10882 |
|
|
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 |
112897 |
11400 |
642 |
938 |
198 |
7 |
0 |
0 |
| OW |
10 |
325 |
158 |
673 |
628 |
53 |
0 |
0 |
| VODI |
1 |
248 |
191 |
505 |
830 |
493 |
24 |
0 |
| ODI |
0 |
39 |
52 |
740 |
1498 |
896 |
151 |
0 |
| CDI |
0 |
0 |
4 |
68 |
1494 |
3638 |
746 |
1 |
| VCDI |
0 |
0 |
0 |
3 |
213 |
9474 |
28436 |
9337 |
|
|
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 |
111754 |
11247 |
632 |
907 |
158 |
12 |
0 |
0 |
| OW |
8 |
326 |
140 |
686 |
621 |
49 |
0 |
0 |
| VODI |
0 |
182 |
153 |
475 |
644 |
342 |
9 |
0 |
| ODI |
0 |
60 |
52 |
507 |
1090 |
637 |
99 |
0 |
| CDI |
0 |
0 |
0 |
109 |
1370 |
2679 |
655 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
362 |
8742 |
33197 |
9096 |
|
|
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 |
110933 |
11006 |
365 |
676 |
292 |
13 |
0 |
0 |
| OW |
0 |
400 |
148 |
368 |
805 |
210 |
0 |
0 |
| VODI |
0 |
184 |
160 |
439 |
578 |
473 |
7 |
0 |
| ODI |
0 |
59 |
51 |
352 |
692 |
682 |
82 |
0 |
| CDI |
0 |
0 |
3 |
48 |
940 |
2467 |
733 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
146 |
7815 |
33970 |
11914 |
|
|
Date: 2025-10-31:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
108206 |
13118 |
446 |
557 |
65 |
3 |
0 |
0 |
| OW |
0 |
578 |
182 |
417 |
243 |
67 |
0 |
0 |
| VODI |
1 |
210 |
188 |
432 |
249 |
615 |
132 |
0 |
| ODI |
0 |
45 |
67 |
446 |
535 |
698 |
302 |
0 |
| CDI |
0 |
0 |
2 |
92 |
845 |
2083 |
705 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
117 |
5943 |
30651 |
18771 |
|
|
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