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 |
671 |
1066 |
192 |
1 |
0 |
0 |
| OW |
5 |
400 |
162 |
575 |
829 |
276 |
1 |
0 |
| VODI |
9 |
329 |
225 |
896 |
795 |
883 |
42 |
0 |
| ODI |
0 |
87 |
124 |
871 |
1510 |
964 |
173 |
0 |
| CDI |
0 |
2 |
6 |
68 |
1030 |
2723 |
1053 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
84 |
7982 |
26247 |
10881 |
|
|
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 |
11404 |
644 |
948 |
191 |
7 |
0 |
0 |
| OW |
10 |
321 |
155 |
661 |
632 |
51 |
0 |
0 |
| VODI |
1 |
248 |
191 |
506 |
821 |
495 |
24 |
0 |
| ODI |
0 |
39 |
54 |
742 |
1515 |
893 |
150 |
0 |
| CDI |
0 |
0 |
3 |
68 |
1480 |
3624 |
756 |
1 |
| VCDI |
0 |
0 |
0 |
2 |
222 |
9491 |
28427 |
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 |
11253 |
637 |
975 |
175 |
1 |
0 |
0 |
| OW |
8 |
320 |
134 |
624 |
629 |
56 |
0 |
0 |
| VODI |
0 |
180 |
153 |
470 |
627 |
349 |
12 |
0 |
| ODI |
0 |
62 |
53 |
513 |
1093 |
623 |
98 |
0 |
| CDI |
0 |
0 |
0 |
103 |
1368 |
2678 |
653 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
353 |
8754 |
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 |
10932 |
356 |
730 |
566 |
81 |
0 |
0 |
| OW |
0 |
435 |
135 |
305 |
599 |
198 |
0 |
0 |
| VODI |
0 |
199 |
158 |
407 |
503 |
477 |
12 |
0 |
| ODI |
0 |
81 |
65 |
352 |
649 |
680 |
91 |
0 |
| CDI |
0 |
2 |
13 |
78 |
948 |
2364 |
796 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
188 |
7860 |
33893 |
11914 |
|
|
Date: 2025-10-31:
| Best estimate |
|
|
...observations not yet available
|
|
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