Validation of sea ice concentration
Bulletin date: 2024-12-19
Model vs. observations, sea ice class contingency tables
Date: 2024-12-13:
| 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 |
68813 |
25656 |
2503 |
336 |
54 |
7 |
4 |
0 |
| OW |
0 |
1142 |
1523 |
918 |
328 |
89 |
29 |
0 |
| VODI |
0 |
152 |
750 |
732 |
677 |
486 |
334 |
0 |
| ODI |
0 |
45 |
205 |
433 |
483 |
636 |
794 |
5 |
| CDI |
0 |
30 |
153 |
255 |
429 |
1048 |
3567 |
67 |
| VCDI |
0 |
0 |
32 |
108 |
264 |
915 |
23095 |
21747 |
|
...date precedes bulletin
|
Date: 2024-12-17:
| 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 |
66173 |
26573 |
2811 |
445 |
117 |
19 |
16 |
0 |
| OW |
0 |
842 |
1818 |
729 |
285 |
59 |
24 |
0 |
| VODI |
0 |
43 |
763 |
945 |
531 |
233 |
156 |
0 |
| ODI |
0 |
15 |
250 |
345 |
585 |
526 |
606 |
49 |
| CDI |
0 |
5 |
102 |
310 |
447 |
1034 |
4879 |
176 |
| VCDI |
0 |
0 |
14 |
61 |
254 |
699 |
22783 |
23122 |
|
...date precedes bulletin
|
Date: 2024-12-19:
| 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 |
65095 |
24906 |
3344 |
691 |
128 |
45 |
2 |
0 |
| OW |
0 |
656 |
1333 |
856 |
595 |
82 |
21 |
0 |
| VODI |
0 |
118 |
571 |
863 |
991 |
280 |
165 |
0 |
| ODI |
0 |
14 |
259 |
500 |
894 |
518 |
715 |
8 |
| CDI |
0 |
9 |
150 |
390 |
842 |
1645 |
6551 |
26 |
| VCDI |
0 |
0 |
9 |
104 |
407 |
679 |
25447 |
18935 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65095 |
25110 |
3722 |
934 |
197 |
46 |
3 |
0 |
| OW |
0 |
488 |
1062 |
846 |
699 |
129 |
44 |
0 |
| VODI |
0 |
86 |
522 |
786 |
1040 |
389 |
199 |
0 |
| ODI |
0 |
10 |
237 |
464 |
860 |
634 |
1069 |
8 |
| CDI |
0 |
9 |
112 |
313 |
771 |
1449 |
6689 |
24 |
| VCDI |
0 |
0 |
11 |
61 |
290 |
602 |
24897 |
18937 |
|
Date: 2024-12-23:
| 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 |
65462 |
24091 |
3069 |
515 |
80 |
12 |
2 |
0 |
| OW |
0 |
844 |
1946 |
892 |
300 |
81 |
38 |
0 |
| VODI |
0 |
77 |
662 |
795 |
846 |
505 |
156 |
0 |
| ODI |
0 |
19 |
285 |
306 |
525 |
1113 |
566 |
0 |
| CDI |
0 |
7 |
245 |
305 |
347 |
1186 |
3578 |
61 |
| VCDI |
0 |
1 |
72 |
145 |
196 |
843 |
27411 |
21260 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65462 |
23720 |
3290 |
674 |
90 |
11 |
9 |
0 |
| OW |
0 |
842 |
1242 |
686 |
347 |
114 |
107 |
0 |
| VODI |
0 |
334 |
847 |
630 |
737 |
563 |
308 |
0 |
| ODI |
0 |
99 |
453 |
417 |
464 |
1001 |
878 |
1 |
| CDI |
0 |
43 |
359 |
361 |
425 |
1188 |
6079 |
71 |
| VCDI |
0 |
1 |
88 |
190 |
231 |
863 |
24370 |
21249 |
|
Date: 2024-12-25:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2024-12-27:
| 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 |
65322 |
25429 |
2827 |
578 |
111 |
48 |
7 |
0 |
| OW |
0 |
1257 |
1430 |
387 |
126 |
87 |
12 |
0 |
| VODI |
0 |
547 |
983 |
685 |
277 |
217 |
210 |
2 |
| ODI |
0 |
197 |
503 |
498 |
372 |
512 |
806 |
9 |
| CDI |
0 |
201 |
697 |
516 |
538 |
1025 |
2571 |
31 |
| VCDI |
0 |
125 |
572 |
434 |
227 |
1096 |
28235 |
19137 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65322 |
25262 |
2990 |
741 |
114 |
54 |
11 |
0 |
| OW |
0 |
1171 |
1202 |
478 |
194 |
97 |
45 |
0 |
| VODI |
0 |
669 |
951 |
650 |
407 |
411 |
224 |
1 |
| ODI |
0 |
305 |
617 |
413 |
282 |
691 |
1167 |
25 |
| CDI |
0 |
260 |
743 |
477 |
435 |
945 |
3920 |
61 |
| VCDI |
0 |
89 |
509 |
339 |
219 |
787 |
26474 |
19092 |
|
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