Validation of sea ice concentration
Bulletin date: 2025-06-26
Model vs. observations, sea ice class contingency tables
Date: 2025-06-20:
| 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 |
75168 |
20266 |
8478 |
911 |
152 |
70 |
367 |
0 |
| OW |
0 |
384 |
3626 |
2704 |
786 |
359 |
501 |
0 |
| VODI |
0 |
6 |
794 |
2382 |
1744 |
2033 |
1777 |
0 |
| ODI |
0 |
0 |
82 |
271 |
494 |
1646 |
3933 |
0 |
| CDI |
0 |
0 |
165 |
242 |
340 |
535 |
6660 |
116 |
| VCDI |
0 |
0 |
44 |
132 |
106 |
67 |
10657 |
10846 |
|
...date precedes bulletin
|
Date: 2025-06-24:
| 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 |
76390 |
17573 |
11489 |
1316 |
264 |
115 |
423 |
5 |
| OW |
0 |
222 |
3517 |
2495 |
675 |
360 |
575 |
29 |
| VODI |
0 |
10 |
858 |
1932 |
1550 |
1472 |
1702 |
97 |
| ODI |
0 |
0 |
166 |
564 |
697 |
1143 |
3423 |
72 |
| CDI |
0 |
0 |
447 |
230 |
312 |
699 |
7767 |
1521 |
| VCDI |
0 |
0 |
234 |
43 |
39 |
33 |
7333 |
11052 |
|
...date precedes bulletin
|
Date: 2025-06-26:
| 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 |
76647 |
17784 |
13702 |
1340 |
201 |
80 |
406 |
1 |
| OW |
0 |
165 |
3449 |
2580 |
547 |
126 |
382 |
33 |
| VODI |
0 |
10 |
719 |
2657 |
1329 |
1071 |
1465 |
109 |
| ODI |
0 |
0 |
169 |
358 |
477 |
1023 |
3225 |
68 |
| CDI |
0 |
0 |
132 |
349 |
359 |
439 |
7027 |
1660 |
| VCDI |
0 |
0 |
0 |
16 |
31 |
131 |
7751 |
10826 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
76647 |
17784 |
13702 |
1340 |
201 |
80 |
406 |
1 |
| OW |
0 |
165 |
3449 |
2580 |
547 |
126 |
382 |
33 |
| VODI |
0 |
10 |
719 |
2657 |
1329 |
1071 |
1465 |
109 |
| ODI |
0 |
0 |
169 |
358 |
477 |
1023 |
3225 |
68 |
| CDI |
0 |
0 |
132 |
349 |
359 |
439 |
7027 |
1660 |
| VCDI |
0 |
0 |
0 |
16 |
31 |
131 |
7751 |
10826 |
|
Date: 2025-06-30:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-07-02:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-07-04:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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