Validation of sea ice concentration
Bulletin date: 2025-05-08
Model vs. observations, sea ice class contingency tables
Date: 2025-05-02:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
55411 |
24379 |
1866 |
597 |
120 |
12 |
3 |
0 |
| OW |
73 |
722 |
1428 |
906 |
654 |
181 |
94 |
1 |
| VODI |
33 |
132 |
898 |
1027 |
942 |
707 |
627 |
12 |
| ODI |
14 |
18 |
203 |
476 |
625 |
1204 |
2170 |
35 |
| CDI |
7 |
12 |
25 |
348 |
451 |
925 |
14683 |
297 |
| VCDI |
0 |
6 |
1 |
97 |
200 |
474 |
25846 |
19902 |
|
...date precedes bulletin
|
Date: 2025-05-06:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
54972 |
22861 |
3630 |
795 |
313 |
50 |
11 |
0 |
| OW |
95 |
463 |
2024 |
1099 |
805 |
318 |
224 |
0 |
| VODI |
28 |
106 |
1142 |
834 |
1113 |
872 |
783 |
6 |
| ODI |
10 |
6 |
517 |
622 |
849 |
1551 |
3276 |
63 |
| CDI |
7 |
2 |
188 |
597 |
694 |
1213 |
15383 |
1415 |
| VCDI |
0 |
0 |
1 |
138 |
146 |
488 |
22344 |
16790 |
|
...date precedes bulletin
|
Date: 2025-05-08:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
55100 |
24967 |
3105 |
459 |
172 |
43 |
47 |
0 |
| OW |
87 |
605 |
2217 |
1357 |
538 |
218 |
343 |
0 |
| VODI |
10 |
66 |
1334 |
1354 |
1057 |
785 |
906 |
20 |
| ODI |
4 |
2 |
416 |
900 |
1148 |
1468 |
3477 |
76 |
| CDI |
0 |
2 |
143 |
684 |
648 |
858 |
16506 |
916 |
| VCDI |
0 |
0 |
23 |
282 |
241 |
188 |
20068 |
16004 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
55100 |
24967 |
3105 |
459 |
172 |
43 |
47 |
0 |
| OW |
87 |
605 |
2217 |
1357 |
538 |
218 |
343 |
0 |
| VODI |
10 |
66 |
1334 |
1354 |
1057 |
785 |
906 |
20 |
| ODI |
4 |
2 |
416 |
900 |
1148 |
1468 |
3477 |
76 |
| CDI |
0 |
2 |
143 |
684 |
648 |
858 |
16506 |
916 |
| VCDI |
0 |
0 |
23 |
282 |
241 |
188 |
20068 |
16004 |
|
Date: 2025-05-12:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-05-14:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-05-16:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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