Validation of sea ice concentration - Full domain
Reference date: 2025-04-24
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-04-18:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67085 |
15817 |
459 |
445 |
23 |
0 |
0 |
0 |
| OW |
0 |
353 |
117 |
497 |
72 |
0 |
0 |
0 |
| VODI |
0 |
416 |
252 |
946 |
611 |
37 |
0 |
0 |
| ODI |
0 |
8 |
43 |
675 |
1792 |
703 |
34 |
0 |
| CDI |
0 |
0 |
0 |
64 |
1202 |
4303 |
1737 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
247 |
2734 |
31062 |
55300 |
|
|
Date: 2025-04-20:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66284 |
16315 |
551 |
651 |
33 |
0 |
0 |
0 |
| OW |
0 |
312 |
143 |
630 |
100 |
1 |
0 |
0 |
| VODI |
0 |
346 |
159 |
943 |
711 |
43 |
0 |
0 |
| ODI |
0 |
25 |
73 |
671 |
1681 |
631 |
21 |
0 |
| CDI |
0 |
0 |
0 |
45 |
1224 |
3920 |
1628 |
40 |
| VCDI |
0 |
0 |
0 |
0 |
203 |
2787 |
29654 |
57216 |
|
|
Date: 2025-04-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66914 |
16016 |
592 |
696 |
26 |
0 |
0 |
0 |
| OW |
0 |
234 |
153 |
618 |
94 |
0 |
0 |
0 |
| VODI |
0 |
233 |
139 |
792 |
718 |
29 |
2 |
0 |
| ODI |
0 |
13 |
42 |
593 |
1716 |
713 |
134 |
0 |
| CDI |
0 |
0 |
0 |
47 |
822 |
4359 |
2106 |
91 |
| VCDI |
0 |
0 |
0 |
3 |
59 |
1917 |
29068 |
58102 |
|
|
Date: 2025-04-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67158 |
15695 |
606 |
759 |
13 |
0 |
0 |
0 |
| OW |
0 |
261 |
126 |
544 |
59 |
0 |
0 |
0 |
| VODI |
0 |
234 |
179 |
928 |
617 |
57 |
28 |
0 |
| ODI |
0 |
25 |
49 |
618 |
1766 |
808 |
178 |
0 |
| CDI |
0 |
0 |
0 |
28 |
899 |
4177 |
2460 |
99 |
| VCDI |
0 |
0 |
0 |
0 |
143 |
1762 |
30320 |
56445 |
|
|
Date: 2025-04-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67426 |
15824 |
540 |
388 |
0 |
0 |
0 |
0 |
| OW |
0 |
291 |
144 |
499 |
62 |
0 |
0 |
0 |
| VODI |
0 |
305 |
184 |
1015 |
535 |
48 |
14 |
0 |
| ODI |
0 |
25 |
48 |
705 |
1791 |
577 |
135 |
0 |
| CDI |
0 |
0 |
0 |
133 |
1600 |
4840 |
2019 |
40 |
| VCDI |
0 |
0 |
0 |
0 |
189 |
2199 |
33338 |
52127 |
|
|
Date: 2025-04-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68808 |
14762 |
386 |
242 |
2 |
0 |
0 |
0 |
| OW |
0 |
390 |
222 |
412 |
68 |
0 |
0 |
0 |
| VODI |
0 |
324 |
227 |
1097 |
285 |
30 |
1 |
0 |
| ODI |
0 |
43 |
67 |
913 |
1884 |
311 |
30 |
0 |
| CDI |
0 |
0 |
0 |
218 |
1931 |
5353 |
1815 |
7 |
| VCDI |
0 |
0 |
0 |
18 |
117 |
2904 |
33844 |
50330 |
|
|
Date: 2025-04-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68461 |
15039 |
399 |
276 |
6 |
0 |
0 |
0 |
| OW |
0 |
340 |
187 |
453 |
38 |
0 |
0 |
0 |
| VODI |
0 |
312 |
208 |
1154 |
258 |
13 |
3 |
0 |
| ODI |
0 |
67 |
82 |
854 |
2343 |
422 |
61 |
0 |
| CDI |
0 |
1 |
0 |
192 |
1913 |
5865 |
2140 |
7 |
| VCDI |
0 |
0 |
0 |
5 |
217 |
3729 |
32920 |
49076 |
|
|
Date: 2025-05-02:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69805 |
13738 |
352 |
263 |
1 |
0 |
0 |
0 |
| OW |
17 |
317 |
154 |
373 |
36 |
0 |
0 |
0 |
| VODI |
0 |
356 |
231 |
1191 |
396 |
38 |
4 |
6 |
| ODI |
0 |
82 |
102 |
1013 |
2260 |
627 |
105 |
18 |
| CDI |
0 |
0 |
0 |
191 |
2599 |
6511 |
1824 |
58 |
| VCDI |
0 |
0 |
0 |
0 |
183 |
4555 |
31200 |
48435 |
|
|
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