Validation of sea ice concentration - Full domain
Reference date: 2025-05-22
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-05-16:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71296 |
14009 |
459 |
627 |
10 |
0 |
0 |
0 |
| OW |
0 |
367 |
101 |
509 |
36 |
0 |
0 |
0 |
| VODI |
0 |
723 |
316 |
2353 |
889 |
40 |
9 |
0 |
| ODI |
0 |
603 |
343 |
2222 |
4831 |
1083 |
78 |
6 |
| CDI |
0 |
143 |
21 |
408 |
2931 |
9257 |
3841 |
112 |
| VCDI |
0 |
0 |
0 |
1 |
72 |
2938 |
36012 |
30393 |
|
|
Date: 2025-05-18:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71391 |
14159 |
529 |
789 |
19 |
0 |
0 |
0 |
| OW |
0 |
319 |
108 |
744 |
90 |
0 |
0 |
0 |
| VODI |
0 |
684 |
272 |
2483 |
849 |
44 |
1 |
0 |
| ODI |
0 |
647 |
309 |
2014 |
5413 |
1059 |
68 |
3 |
| CDI |
0 |
4 |
3 |
257 |
2577 |
9340 |
2852 |
181 |
| VCDI |
0 |
0 |
0 |
0 |
60 |
2598 |
32254 |
34919 |
|
|
Date: 2025-05-20:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71445 |
14418 |
532 |
1042 |
199 |
0 |
0 |
0 |
| OW |
0 |
369 |
146 |
762 |
113 |
0 |
0 |
0 |
| VODI |
0 |
599 |
378 |
2219 |
874 |
31 |
13 |
0 |
| ODI |
0 |
664 |
285 |
1878 |
5098 |
1417 |
193 |
21 |
| CDI |
0 |
1 |
4 |
344 |
2406 |
10368 |
2916 |
138 |
| VCDI |
0 |
0 |
0 |
0 |
22 |
3826 |
29946 |
34372 |
|
|
Date: 2025-05-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71836 |
14210 |
572 |
1202 |
53 |
0 |
0 |
0 |
| OW |
0 |
348 |
170 |
847 |
153 |
2 |
0 |
0 |
| VODI |
0 |
633 |
347 |
2244 |
882 |
73 |
10 |
0 |
| ODI |
0 |
625 |
265 |
1857 |
5526 |
1428 |
176 |
18 |
| CDI |
0 |
23 |
19 |
431 |
2489 |
10777 |
3341 |
314 |
| VCDI |
0 |
0 |
0 |
0 |
51 |
3363 |
27828 |
34926 |
|
|
Date: 2025-05-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72705 |
14009 |
620 |
913 |
40 |
0 |
0 |
0 |
| OW |
0 |
329 |
219 |
693 |
138 |
3 |
0 |
0 |
| VODI |
0 |
718 |
421 |
2280 |
854 |
49 |
6 |
0 |
| ODI |
0 |
623 |
269 |
1923 |
6122 |
1150 |
74 |
0 |
| CDI |
0 |
49 |
38 |
407 |
2686 |
12049 |
3566 |
111 |
| VCDI |
0 |
0 |
0 |
0 |
30 |
3887 |
24912 |
35146 |
|
|
Date: 2025-05-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
74818 |
12947 |
538 |
707 |
7 |
0 |
0 |
0 |
| OW |
0 |
378 |
224 |
615 |
25 |
2 |
0 |
0 |
| VODI |
0 |
683 |
372 |
2358 |
811 |
92 |
6 |
0 |
| ODI |
0 |
579 |
233 |
1774 |
6105 |
1756 |
106 |
0 |
| CDI |
0 |
66 |
25 |
362 |
2512 |
12628 |
4537 |
98 |
| VCDI |
0 |
0 |
0 |
0 |
129 |
3241 |
31042 |
27263 |
|
|
Date: 2025-05-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
75055 |
13452 |
601 |
1001 |
51 |
0 |
0 |
0 |
| OW |
0 |
370 |
179 |
620 |
101 |
2 |
0 |
0 |
| VODI |
0 |
720 |
350 |
2081 |
913 |
57 |
0 |
0 |
| ODI |
0 |
645 |
292 |
1973 |
6068 |
1524 |
82 |
0 |
| CDI |
0 |
37 |
30 |
396 |
4686 |
11664 |
3788 |
27 |
| VCDI |
0 |
0 |
0 |
3 |
275 |
2952 |
28073 |
28971 |
|
|
Date: 2025-05-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
75394 |
13828 |
651 |
962 |
48 |
0 |
0 |
0 |
| OW |
0 |
382 |
177 |
568 |
166 |
0 |
0 |
0 |
| VODI |
0 |
764 |
349 |
1979 |
1082 |
83 |
7 |
0 |
| ODI |
0 |
869 |
346 |
2038 |
5962 |
1768 |
105 |
0 |
| CDI |
0 |
23 |
17 |
482 |
3155 |
11669 |
5217 |
15 |
| VCDI |
0 |
0 |
0 |
21 |
166 |
5718 |
26683 |
26345 |
|
|
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