Validation of sea ice concentration - Full domain
Reference date: 2025-09-25
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
121511 |
18718 |
570 |
470 |
17 |
0 |
0 |
0 |
| OW |
594 |
4167 |
607 |
1273 |
223 |
5 |
0 |
0 |
| VODI |
4 |
119 |
145 |
1357 |
1217 |
184 |
0 |
0 |
| ODI |
0 |
13 |
15 |
301 |
1928 |
2302 |
149 |
0 |
| CDI |
0 |
2 |
1 |
9 |
728 |
7638 |
2198 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
7136 |
11581 |
1819 |
|
|
Date: 2025-09-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
119270 |
20971 |
545 |
493 |
8 |
0 |
0 |
0 |
| OW |
610 |
3758 |
381 |
1195 |
467 |
8 |
0 |
0 |
| VODI |
0 |
151 |
147 |
1041 |
1165 |
256 |
4 |
0 |
| ODI |
0 |
7 |
13 |
219 |
1694 |
1708 |
159 |
1 |
| CDI |
0 |
0 |
1 |
14 |
664 |
6157 |
2727 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
4637 |
15940 |
2592 |
|
|
Date: 2025-09-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
124485 |
15526 |
438 |
558 |
47 |
0 |
0 |
0 |
| OW |
612 |
3610 |
399 |
946 |
455 |
15 |
0 |
0 |
| VODI |
0 |
160 |
120 |
860 |
1247 |
260 |
11 |
0 |
| ODI |
0 |
11 |
29 |
233 |
1480 |
1152 |
91 |
0 |
| CDI |
0 |
0 |
0 |
24 |
591 |
4898 |
2337 |
12 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
2253 |
18939 |
5202 |
|
|
Date: 2025-09-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
124997 |
14650 |
411 |
428 |
48 |
0 |
0 |
0 |
| OW |
127 |
3820 |
344 |
977 |
497 |
24 |
0 |
0 |
| VODI |
0 |
172 |
121 |
718 |
1196 |
269 |
1 |
0 |
| ODI |
0 |
12 |
28 |
227 |
1391 |
1030 |
41 |
0 |
| CDI |
0 |
0 |
0 |
11 |
568 |
3882 |
1318 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
28 |
3227 |
20707 |
5737 |
|
|
Date: 2025-09-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
124145 |
15239 |
343 |
340 |
40 |
0 |
0 |
0 |
| OW |
68 |
3553 |
365 |
697 |
517 |
67 |
0 |
0 |
| VODI |
0 |
200 |
157 |
676 |
871 |
491 |
68 |
0 |
| ODI |
0 |
4 |
10 |
160 |
912 |
970 |
310 |
0 |
| CDI |
0 |
0 |
0 |
2 |
420 |
2888 |
1291 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
15 |
3014 |
21495 |
7679 |
|
|
Date: 2025-09-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
122703 |
16465 |
379 |
346 |
75 |
3 |
0 |
0 |
| OW |
0 |
2393 |
440 |
1187 |
388 |
40 |
0 |
0 |
| VODI |
0 |
153 |
137 |
854 |
835 |
286 |
10 |
0 |
| ODI |
0 |
3 |
15 |
220 |
1020 |
739 |
110 |
0 |
| CDI |
0 |
0 |
0 |
12 |
573 |
2657 |
662 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
79 |
3901 |
25959 |
4363 |
|
|
Date: 2025-10-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
121834 |
17146 |
449 |
504 |
89 |
12 |
0 |
0 |
| OW |
0 |
1677 |
437 |
951 |
319 |
98 |
0 |
0 |
| VODI |
0 |
195 |
172 |
628 |
742 |
164 |
3 |
0 |
| ODI |
0 |
25 |
42 |
365 |
985 |
633 |
27 |
0 |
| CDI |
0 |
1 |
6 |
83 |
794 |
2526 |
313 |
0 |
| VCDI |
0 |
0 |
1 |
4 |
133 |
5053 |
20876 |
9720 |
|
|
Date: 2025-10-03:
| Best estimate |
|
|
...observations not yet available
|
|
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