Validation of sea ice concentration
Bulletin date: 2024-11-14
Model vs. observations, sea ice class contingency tables
Date: 2024-11-08:
| 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 |
91554 |
23561 |
3768 |
480 |
265 |
64 |
1 |
0 |
| OW |
0 |
170 |
1300 |
779 |
351 |
307 |
20 |
0 |
| VODI |
0 |
20 |
460 |
649 |
590 |
776 |
140 |
0 |
| ODI |
0 |
0 |
101 |
227 |
366 |
735 |
435 |
0 |
| CDI |
0 |
0 |
43 |
81 |
330 |
1713 |
2416 |
0 |
| VCDI |
0 |
0 |
0 |
103 |
131 |
1736 |
12930 |
11866 |
|
...date precedes bulletin
|
Date: 2024-11-12:
| 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 |
58442 |
23864 |
3622 |
852 |
134 |
27 |
1 |
0 |
| OW |
0 |
261 |
1371 |
1080 |
540 |
248 |
2 |
0 |
| VODI |
0 |
53 |
416 |
747 |
925 |
791 |
57 |
0 |
| ODI |
0 |
0 |
106 |
224 |
438 |
1161 |
293 |
0 |
| CDI |
0 |
0 |
61 |
65 |
177 |
1555 |
2440 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
24 |
135 |
16874 |
12445 |
|
...date precedes bulletin
|
Date: 2024-11-14:
| 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 |
84228 |
28015 |
2274 |
510 |
37 |
39 |
2 |
0 |
| OW |
2 |
841 |
1424 |
1165 |
287 |
126 |
23 |
0 |
| VODI |
0 |
244 |
628 |
1100 |
526 |
433 |
76 |
0 |
| ODI |
0 |
134 |
232 |
488 |
503 |
518 |
187 |
0 |
| CDI |
0 |
166 |
210 |
235 |
306 |
1262 |
1982 |
0 |
| VCDI |
0 |
59 |
319 |
333 |
189 |
1154 |
19607 |
8604 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84227 |
28203 |
2288 |
521 |
35 |
33 |
1 |
0 |
| OW |
3 |
695 |
1417 |
1222 |
305 |
116 |
20 |
0 |
| VODI |
0 |
227 |
629 |
1040 |
510 |
458 |
103 |
0 |
| ODI |
0 |
111 |
232 |
507 |
518 |
528 |
164 |
0 |
| CDI |
0 |
159 |
199 |
210 |
296 |
1282 |
2074 |
0 |
| VCDI |
0 |
64 |
322 |
331 |
184 |
1115 |
19515 |
8604 |
|
Date: 2024-11-18:
| 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 |
84358 |
23593 |
2879 |
522 |
342 |
323 |
20 |
0 |
| OW |
3 |
826 |
1699 |
618 |
359 |
279 |
67 |
0 |
| VODI |
1 |
2 |
558 |
622 |
665 |
691 |
274 |
0 |
| ODI |
0 |
0 |
156 |
374 |
486 |
857 |
466 |
0 |
| CDI |
0 |
0 |
61 |
309 |
631 |
1311 |
1688 |
7 |
| VCDI |
0 |
0 |
0 |
5 |
127 |
1273 |
19321 |
12695 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
84358 |
23485 |
2800 |
464 |
306 |
285 |
18 |
0 |
| OW |
4 |
925 |
1697 |
647 |
346 |
242 |
84 |
0 |
| VODI |
0 |
11 |
629 |
632 |
693 |
723 |
226 |
0 |
| ODI |
0 |
0 |
174 |
397 |
500 |
942 |
489 |
0 |
| CDI |
0 |
0 |
53 |
305 |
641 |
1300 |
1636 |
7 |
| VCDI |
0 |
0 |
0 |
5 |
124 |
1242 |
19383 |
12695 |
|
Date: 2024-11-20:
| 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 |
80922 |
26476 |
1630 |
534 |
267 |
127 |
1 |
0 |
| OW |
2 |
525 |
1445 |
596 |
316 |
389 |
0 |
0 |
| VODI |
0 |
85 |
505 |
830 |
500 |
665 |
45 |
0 |
| ODI |
0 |
2 |
109 |
457 |
755 |
1078 |
208 |
0 |
| CDI |
0 |
0 |
4 |
138 |
607 |
2351 |
2737 |
50 |
| VCDI |
0 |
0 |
0 |
22 |
62 |
1916 |
19525 |
12587 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80924 |
25727 |
1369 |
599 |
363 |
364 |
6 |
0 |
| OW |
0 |
1267 |
1446 |
580 |
313 |
342 |
38 |
0 |
| VODI |
0 |
93 |
661 |
635 |
573 |
839 |
58 |
0 |
| ODI |
0 |
1 |
193 |
414 |
455 |
991 |
339 |
1 |
| CDI |
0 |
0 |
24 |
294 |
697 |
1771 |
2539 |
107 |
| VCDI |
0 |
0 |
0 |
55 |
106 |
2219 |
19536 |
12529 |
|
Date: 2024-11-22:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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