Validation of sea ice concentration - Full domain
Bulletin date: 2025-02-27
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-02-21:
| 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 |
68096 |
16895 |
313 |
273 |
10 |
0 |
0 |
0 |
| OW |
0 |
1149 |
398 |
898 |
132 |
0 |
0 |
0 |
| VODI |
0 |
262 |
162 |
899 |
738 |
57 |
0 |
0 |
| ODI |
0 |
72 |
66 |
407 |
816 |
447 |
35 |
1 |
| CDI |
0 |
36 |
39 |
291 |
1043 |
1417 |
895 |
52 |
| VCDI |
0 |
12 |
11 |
168 |
959 |
7037 |
26844 |
63813 |
|
...date precedes bulletin
|
Date: 2025-02-23:
| 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 |
68730 |
15966 |
259 |
297 |
20 |
0 |
0 |
0 |
| OW |
93 |
1280 |
406 |
660 |
158 |
8 |
0 |
0 |
| VODI |
0 |
321 |
215 |
1026 |
504 |
59 |
0 |
0 |
| ODI |
0 |
84 |
78 |
550 |
884 |
341 |
20 |
0 |
| CDI |
0 |
59 |
45 |
332 |
1355 |
1864 |
256 |
28 |
| VCDI |
0 |
9 |
13 |
205 |
843 |
7658 |
23618 |
66499 |
|
...date precedes bulletin
|
Date: 2025-02-25:
| 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 |
69264 |
15600 |
230 |
245 |
23 |
0 |
0 |
0 |
| OW |
7 |
1334 |
495 |
729 |
95 |
13 |
0 |
0 |
| VODI |
0 |
314 |
229 |
1321 |
624 |
43 |
1 |
0 |
| ODI |
0 |
72 |
33 |
517 |
1195 |
258 |
16 |
0 |
| CDI |
0 |
23 |
18 |
225 |
1534 |
2010 |
368 |
22 |
| VCDI |
0 |
16 |
13 |
164 |
862 |
7091 |
20046 |
69693 |
|
...date precedes bulletin
|
Date: 2025-02-27:
| 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 |
67539 |
16950 |
330 |
295 |
18 |
0 |
0 |
0 |
| OW |
0 |
1370 |
417 |
831 |
134 |
1 |
0 |
0 |
| VODI |
0 |
528 |
257 |
1164 |
645 |
9 |
0 |
0 |
| ODI |
0 |
116 |
69 |
501 |
988 |
315 |
0 |
0 |
| CDI |
0 |
42 |
26 |
341 |
1392 |
2106 |
268 |
9 |
| VCDI |
0 |
18 |
26 |
257 |
970 |
7704 |
20641 |
68466 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67539 |
17016 |
350 |
306 |
20 |
0 |
0 |
0 |
| OW |
0 |
1321 |
412 |
838 |
127 |
0 |
0 |
0 |
| VODI |
0 |
527 |
232 |
1148 |
657 |
16 |
0 |
0 |
| ODI |
0 |
106 |
74 |
487 |
981 |
337 |
0 |
0 |
| CDI |
0 |
38 |
34 |
369 |
1418 |
2065 |
303 |
11 |
| VCDI |
0 |
16 |
23 |
241 |
944 |
7717 |
20606 |
68464 |
|
Date: 2025-03-01:
| 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 |
67325 |
16980 |
291 |
461 |
19 |
0 |
0 |
0 |
| OW |
2 |
1261 |
403 |
1010 |
116 |
3 |
0 |
0 |
| VODI |
0 |
498 |
261 |
1055 |
691 |
26 |
2 |
0 |
| ODI |
0 |
117 |
42 |
528 |
806 |
271 |
23 |
0 |
| CDI |
0 |
63 |
21 |
276 |
1287 |
1365 |
447 |
19 |
| VCDI |
0 |
36 |
37 |
202 |
944 |
8237 |
22272 |
67346 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67326 |
17094 |
312 |
514 |
19 |
0 |
0 |
0 |
| OW |
1 |
1157 |
386 |
965 |
144 |
5 |
0 |
0 |
| VODI |
0 |
489 |
241 |
1051 |
708 |
45 |
0 |
0 |
| ODI |
0 |
129 |
49 |
507 |
773 |
273 |
35 |
0 |
| CDI |
0 |
54 |
32 |
293 |
1245 |
1325 |
454 |
23 |
| VCDI |
0 |
32 |
35 |
202 |
974 |
8254 |
22255 |
67342 |
|
Date: 2025-03-03:
| 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 |
67534 |
16738 |
410 |
538 |
43 |
0 |
0 |
0 |
| OW |
0 |
1293 |
482 |
902 |
182 |
2 |
0 |
0 |
| VODI |
0 |
235 |
161 |
1482 |
763 |
8 |
0 |
0 |
| ODI |
0 |
34 |
27 |
378 |
1260 |
172 |
0 |
0 |
| CDI |
0 |
13 |
28 |
170 |
1131 |
2184 |
166 |
9 |
| VCDI |
0 |
0 |
7 |
133 |
592 |
8239 |
20302 |
69125 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67528 |
16290 |
456 |
718 |
67 |
0 |
0 |
0 |
| OW |
6 |
1260 |
300 |
806 |
324 |
2 |
0 |
0 |
| VODI |
0 |
458 |
170 |
871 |
821 |
82 |
6 |
0 |
| ODI |
0 |
168 |
81 |
526 |
679 |
250 |
37 |
0 |
| CDI |
0 |
83 |
57 |
382 |
1089 |
1168 |
282 |
7 |
| VCDI |
0 |
54 |
51 |
300 |
991 |
9103 |
20143 |
69127 |
|
Date: 2025-03-05:
| 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 |
67013 |
16720 |
433 |
715 |
114 |
2 |
0 |
0 |
| OW |
12 |
1139 |
355 |
946 |
224 |
10 |
0 |
0 |
| VODI |
1 |
248 |
149 |
1077 |
753 |
42 |
0 |
0 |
| ODI |
0 |
62 |
23 |
519 |
1044 |
193 |
0 |
1 |
| CDI |
0 |
21 |
3 |
268 |
1200 |
1523 |
175 |
28 |
| VCDI |
0 |
23 |
22 |
141 |
1072 |
8571 |
20765 |
69136 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67026 |
16034 |
441 |
810 |
153 |
2 |
0 |
0 |
| OW |
0 |
1296 |
246 |
828 |
296 |
16 |
0 |
0 |
| VODI |
0 |
554 |
144 |
901 |
669 |
138 |
0 |
0 |
| ODI |
0 |
192 |
62 |
478 |
793 |
275 |
35 |
0 |
| CDI |
0 |
81 |
61 |
391 |
1167 |
1131 |
195 |
10 |
| VCDI |
0 |
56 |
31 |
258 |
1329 |
8779 |
20710 |
69155 |
|
Date: 2025-03-07:
| 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 |
67054 |
16272 |
378 |
527 |
80 |
3 |
0 |
0 |
| OW |
34 |
1497 |
412 |
803 |
152 |
18 |
0 |
0 |
| VODI |
0 |
393 |
213 |
1165 |
606 |
58 |
2 |
0 |
| ODI |
0 |
79 |
56 |
581 |
829 |
193 |
9 |
0 |
| CDI |
0 |
32 |
10 |
396 |
1201 |
1453 |
283 |
67 |
| VCDI |
0 |
58 |
28 |
230 |
1290 |
8132 |
23598 |
66551 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67064 |
15793 |
418 |
571 |
109 |
7 |
0 |
0 |
| OW |
24 |
1525 |
265 |
732 |
239 |
26 |
0 |
0 |
| VODI |
0 |
594 |
199 |
948 |
590 |
104 |
7 |
0 |
| ODI |
0 |
213 |
86 |
597 |
685 |
254 |
39 |
4 |
| CDI |
0 |
123 |
77 |
471 |
1083 |
1214 |
286 |
44 |
| VCDI |
0 |
83 |
52 |
383 |
1452 |
8252 |
23560 |
66570 |
|
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