Validation of sea ice concentration
Bulletin date: 2024-12-12
Model vs. observations, sea ice class contingency tables
Date: 2024-12-06:
| 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 |
72412 |
23962 |
2794 |
209 |
51 |
12 |
2 |
0 |
| OW |
0 |
1313 |
1842 |
483 |
176 |
120 |
11 |
0 |
| VODI |
0 |
329 |
1440 |
855 |
465 |
406 |
228 |
0 |
| ODI |
0 |
9 |
403 |
645 |
615 |
720 |
1215 |
0 |
| CDI |
0 |
1 |
188 |
302 |
322 |
995 |
5661 |
10 |
| VCDI |
0 |
0 |
44 |
124 |
198 |
666 |
19095 |
20145 |
|
...date precedes bulletin
|
Date: 2024-12-10:
| 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 |
70812 |
25782 |
2620 |
332 |
27 |
7 |
3 |
0 |
| OW |
0 |
1004 |
1833 |
1028 |
300 |
33 |
11 |
0 |
| VODI |
0 |
79 |
684 |
1044 |
935 |
402 |
78 |
0 |
| ODI |
0 |
2 |
112 |
590 |
577 |
1012 |
452 |
0 |
| CDI |
0 |
0 |
40 |
145 |
461 |
2193 |
2254 |
3 |
| VCDI |
0 |
0 |
20 |
75 |
155 |
1478 |
23091 |
18794 |
|
...date precedes bulletin
|
Date: 2024-12-12:
| 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 |
70855 |
24420 |
2587 |
350 |
42 |
4 |
5 |
0 |
| OW |
0 |
1008 |
1541 |
938 |
340 |
139 |
30 |
0 |
| VODI |
0 |
155 |
560 |
776 |
800 |
700 |
142 |
0 |
| ODI |
0 |
38 |
162 |
288 |
527 |
767 |
806 |
0 |
| CDI |
0 |
40 |
121 |
179 |
392 |
1133 |
3172 |
1 |
| VCDI |
0 |
0 |
14 |
17 |
117 |
943 |
24585 |
19774 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70855 |
24648 |
2949 |
463 |
94 |
16 |
12 |
0 |
| OW |
0 |
814 |
1433 |
896 |
348 |
207 |
26 |
0 |
| VODI |
0 |
109 |
380 |
819 |
815 |
742 |
253 |
0 |
| ODI |
0 |
38 |
110 |
256 |
487 |
838 |
966 |
0 |
| CDI |
0 |
43 |
109 |
106 |
367 |
1167 |
3433 |
1 |
| VCDI |
0 |
9 |
4 |
8 |
107 |
716 |
24050 |
19774 |
|
Date: 2024-12-16:
| 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 |
67714 |
25406 |
2727 |
614 |
199 |
108 |
69 |
0 |
| OW |
0 |
1163 |
1067 |
461 |
196 |
251 |
238 |
0 |
| VODI |
0 |
423 |
890 |
460 |
365 |
476 |
761 |
0 |
| ODI |
0 |
60 |
435 |
290 |
315 |
530 |
1202 |
67 |
| CDI |
0 |
9 |
259 |
391 |
483 |
951 |
4347 |
294 |
| VCDI |
0 |
0 |
24 |
46 |
90 |
817 |
21806 |
22464 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67714 |
24993 |
2554 |
531 |
174 |
91 |
67 |
0 |
| OW |
0 |
1420 |
1122 |
474 |
195 |
241 |
226 |
0 |
| VODI |
0 |
561 |
990 |
502 |
371 |
529 |
851 |
0 |
| ODI |
0 |
83 |
482 |
340 |
341 |
555 |
1237 |
40 |
| CDI |
0 |
3 |
232 |
366 |
446 |
856 |
4688 |
224 |
| VCDI |
0 |
1 |
22 |
49 |
121 |
861 |
21354 |
22561 |
|
Date: 2024-12-18:
| 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 |
65360 |
25663 |
4082 |
652 |
115 |
66 |
3 |
0 |
| OW |
0 |
345 |
1453 |
955 |
381 |
143 |
62 |
0 |
| VODI |
0 |
46 |
438 |
807 |
862 |
450 |
257 |
0 |
| ODI |
0 |
5 |
179 |
359 |
587 |
690 |
1002 |
8 |
| CDI |
0 |
3 |
75 |
234 |
498 |
1218 |
6171 |
30 |
| VCDI |
0 |
0 |
3 |
72 |
266 |
672 |
25206 |
19050 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65360 |
24947 |
3301 |
694 |
160 |
105 |
42 |
0 |
| OW |
0 |
867 |
1488 |
591 |
341 |
251 |
78 |
0 |
| VODI |
0 |
207 |
875 |
898 |
660 |
543 |
602 |
0 |
| ODI |
0 |
33 |
356 |
458 |
631 |
556 |
1416 |
0 |
| CDI |
0 |
7 |
202 |
354 |
649 |
934 |
4799 |
19 |
| VCDI |
0 |
1 |
8 |
84 |
268 |
850 |
25764 |
19069 |
|
Date: 2024-12-20:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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