Validation of sea ice concentration
Bulletin date: 2025-02-20
Model vs. observations, sea ice class contingency tables
Date: 2025-02-14:
| 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 |
58787 |
24183 |
2983 |
698 |
188 |
61 |
2 |
0 |
| OW |
0 |
306 |
1577 |
1309 |
684 |
328 |
3 |
0 |
| VODI |
0 |
111 |
458 |
1214 |
1270 |
1012 |
124 |
0 |
| ODI |
0 |
41 |
140 |
475 |
739 |
1461 |
489 |
0 |
| CDI |
0 |
6 |
45 |
330 |
683 |
3124 |
4268 |
29 |
| VCDI |
0 |
0 |
0 |
95 |
470 |
3053 |
27012 |
21086 |
|
...date precedes bulletin
|
Date: 2025-02-18:
| 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 |
57837 |
23269 |
3427 |
746 |
193 |
66 |
0 |
0 |
| OW |
0 |
365 |
1345 |
857 |
430 |
204 |
34 |
0 |
| VODI |
0 |
28 |
755 |
870 |
795 |
737 |
225 |
0 |
| ODI |
0 |
0 |
234 |
500 |
601 |
993 |
838 |
43 |
| CDI |
0 |
0 |
67 |
342 |
734 |
2332 |
5124 |
424 |
| VCDI |
0 |
0 |
77 |
114 |
222 |
1311 |
25016 |
27689 |
|
...date precedes bulletin
|
Date: 2025-02-20:
| 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 |
57103 |
23045 |
3574 |
731 |
342 |
49 |
1 |
0 |
| OW |
0 |
150 |
1294 |
1086 |
685 |
209 |
8 |
0 |
| VODI |
0 |
31 |
360 |
998 |
1283 |
721 |
237 |
0 |
| ODI |
0 |
13 |
86 |
353 |
1098 |
1358 |
671 |
1 |
| CDI |
0 |
7 |
41 |
218 |
573 |
2151 |
4581 |
23 |
| VCDI |
0 |
0 |
6 |
230 |
489 |
2909 |
31962 |
20167 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57103 |
23045 |
3574 |
731 |
342 |
49 |
1 |
0 |
| OW |
0 |
150 |
1294 |
1086 |
685 |
209 |
8 |
0 |
| VODI |
0 |
31 |
360 |
998 |
1283 |
721 |
237 |
0 |
| ODI |
0 |
13 |
86 |
353 |
1098 |
1358 |
671 |
1 |
| CDI |
0 |
7 |
41 |
218 |
573 |
2151 |
4581 |
23 |
| VCDI |
0 |
0 |
6 |
230 |
489 |
2909 |
31962 |
20167 |
|
Date: 2025-02-24:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-02-26:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-02-28:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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