Validation of sea ice concentration
Bulletin date: 2025-01-09
Model vs. observations, sea ice class contingency tables
Date: 2025-01-03:
| 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 |
62829 |
26592 |
1751 |
590 |
88 |
24 |
4 |
0 |
| OW |
0 |
1278 |
982 |
1038 |
346 |
157 |
29 |
0 |
| VODI |
0 |
440 |
405 |
808 |
617 |
543 |
230 |
36 |
| ODI |
0 |
177 |
202 |
507 |
598 |
698 |
1104 |
87 |
| CDI |
0 |
163 |
150 |
528 |
563 |
1680 |
5060 |
253 |
| VCDI |
0 |
172 |
174 |
662 |
738 |
2368 |
24067 |
20106 |
|
...date precedes bulletin
|
Date: 2025-01-07:
| 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 |
61647 |
23294 |
6069 |
724 |
143 |
58 |
38 |
0 |
| OW |
0 |
281 |
1728 |
979 |
379 |
254 |
204 |
0 |
| VODI |
0 |
22 |
423 |
856 |
468 |
480 |
452 |
0 |
| ODI |
0 |
1 |
158 |
310 |
398 |
553 |
977 |
11 |
| CDI |
0 |
0 |
135 |
305 |
353 |
923 |
5130 |
91 |
| VCDI |
0 |
0 |
33 |
108 |
249 |
1254 |
22811 |
26542 |
|
...date precedes bulletin
|
Date: 2025-01-09:
| 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 |
60665 |
24612 |
3757 |
685 |
306 |
129 |
11 |
0 |
| OW |
0 |
427 |
1296 |
771 |
513 |
542 |
113 |
0 |
| VODI |
0 |
105 |
659 |
578 |
518 |
829 |
319 |
0 |
| ODI |
0 |
12 |
296 |
360 |
342 |
683 |
952 |
0 |
| CDI |
0 |
0 |
197 |
371 |
542 |
822 |
7105 |
86 |
| VCDI |
0 |
0 |
50 |
43 |
79 |
541 |
21107 |
28396 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60665 |
24756 |
4055 |
812 |
407 |
188 |
23 |
0 |
| OW |
0 |
291 |
1136 |
761 |
509 |
506 |
169 |
0 |
| VODI |
0 |
95 |
559 |
550 |
492 |
885 |
406 |
0 |
| ODI |
0 |
14 |
298 |
317 |
349 |
707 |
1318 |
7 |
| CDI |
0 |
0 |
168 |
346 |
488 |
825 |
8376 |
158 |
| VCDI |
0 |
0 |
39 |
22 |
55 |
435 |
19315 |
28317 |
|
Date: 2025-01-13:
| 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 |
60417 |
24353 |
4308 |
608 |
111 |
27 |
1 |
0 |
| OW |
0 |
328 |
1877 |
943 |
494 |
283 |
14 |
0 |
| VODI |
0 |
138 |
945 |
737 |
682 |
834 |
141 |
0 |
| ODI |
0 |
44 |
405 |
399 |
522 |
932 |
758 |
35 |
| CDI |
0 |
21 |
371 |
387 |
717 |
1297 |
4673 |
216 |
| VCDI |
0 |
4 |
337 |
398 |
598 |
1588 |
26511 |
21365 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60417 |
24304 |
3915 |
534 |
109 |
23 |
1 |
0 |
| OW |
0 |
376 |
2108 |
920 |
451 |
268 |
16 |
0 |
| VODI |
0 |
146 |
1086 |
799 |
701 |
852 |
147 |
0 |
| ODI |
0 |
42 |
450 |
432 |
576 |
1021 |
800 |
51 |
| CDI |
0 |
19 |
369 |
393 |
677 |
1260 |
4613 |
193 |
| VCDI |
0 |
1 |
315 |
394 |
610 |
1537 |
26521 |
21372 |
|
Date: 2025-01-15:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-01-17:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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