Validation of sea ice concentration - Full domain
Bulletin date: 2025-01-30
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-01-24:
| 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 |
70709 |
16230 |
371 |
317 |
49 |
0 |
0 |
0 |
| OW |
54 |
1026 |
276 |
838 |
135 |
9 |
0 |
0 |
| VODI |
13 |
426 |
160 |
788 |
580 |
51 |
0 |
0 |
| ODI |
2 |
128 |
73 |
372 |
814 |
404 |
16 |
0 |
| CDI |
0 |
35 |
21 |
256 |
788 |
2098 |
1348 |
59 |
| VCDI |
0 |
11 |
9 |
72 |
624 |
4677 |
26224 |
64680 |
|
...date precedes bulletin
|
Date: 2025-01-26:
| 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 |
68331 |
17948 |
391 |
373 |
72 |
6 |
0 |
0 |
| OW |
3 |
1245 |
287 |
751 |
168 |
27 |
0 |
0 |
| VODI |
0 |
516 |
212 |
781 |
618 |
90 |
1 |
0 |
| ODI |
0 |
124 |
45 |
481 |
740 |
465 |
11 |
0 |
| CDI |
0 |
42 |
30 |
311 |
860 |
1960 |
941 |
28 |
| VCDI |
0 |
4 |
5 |
99 |
551 |
5376 |
32959 |
57891 |
|
...date precedes bulletin
|
Date: 2025-01-28:
| 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 |
68906 |
17584 |
343 |
312 |
40 |
22 |
0 |
0 |
| OW |
2 |
1511 |
427 |
808 |
123 |
22 |
0 |
0 |
| VODI |
0 |
331 |
191 |
1169 |
441 |
62 |
0 |
0 |
| ODI |
0 |
33 |
40 |
414 |
773 |
246 |
3 |
0 |
| CDI |
0 |
4 |
3 |
173 |
881 |
1564 |
434 |
46 |
| VCDI |
0 |
5 |
0 |
50 |
575 |
6154 |
32031 |
59020 |
|
...date precedes bulletin
|
Date: 2025-01-30:
| 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 |
69976 |
16626 |
324 |
302 |
36 |
1 |
0 |
0 |
| OW |
12 |
1686 |
343 |
529 |
146 |
3 |
0 |
0 |
| VODI |
0 |
614 |
292 |
1094 |
354 |
20 |
0 |
0 |
| ODI |
0 |
69 |
82 |
569 |
687 |
117 |
12 |
0 |
| CDI |
0 |
5 |
20 |
307 |
1191 |
1075 |
250 |
32 |
| VCDI |
0 |
5 |
5 |
102 |
779 |
5956 |
25774 |
65348 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69973 |
16666 |
336 |
298 |
55 |
1 |
0 |
0 |
| OW |
15 |
1627 |
341 |
547 |
146 |
3 |
0 |
0 |
| VODI |
0 |
625 |
277 |
1095 |
339 |
19 |
0 |
0 |
| ODI |
0 |
76 |
83 |
571 |
666 |
129 |
23 |
2 |
| CDI |
0 |
5 |
23 |
289 |
1210 |
1047 |
272 |
31 |
| VCDI |
0 |
6 |
6 |
103 |
777 |
5973 |
25741 |
65347 |
|
Date: 2025-02-01:
| 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 |
70105 |
16496 |
230 |
250 |
47 |
0 |
0 |
0 |
| OW |
3 |
1778 |
315 |
590 |
153 |
7 |
0 |
0 |
| VODI |
0 |
847 |
297 |
936 |
347 |
49 |
0 |
0 |
| ODI |
0 |
181 |
118 |
624 |
637 |
125 |
6 |
0 |
| CDI |
0 |
19 |
96 |
519 |
1202 |
953 |
274 |
6 |
| VCDI |
0 |
4 |
2 |
212 |
1154 |
7228 |
28269 |
60664 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70105 |
16564 |
225 |
262 |
68 |
0 |
0 |
0 |
| OW |
3 |
1701 |
322 |
567 |
144 |
10 |
0 |
0 |
| VODI |
0 |
850 |
280 |
949 |
350 |
58 |
0 |
0 |
| ODI |
0 |
184 |
127 |
603 |
615 |
127 |
15 |
0 |
| CDI |
0 |
22 |
102 |
534 |
1152 |
948 |
305 |
10 |
| VCDI |
0 |
4 |
2 |
216 |
1211 |
7219 |
28229 |
60660 |
|
Date: 2025-02-03:
| 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 |
71688 |
15480 |
211 |
174 |
13 |
19 |
0 |
0 |
| OW |
29 |
2525 |
461 |
691 |
102 |
10 |
0 |
0 |
| VODI |
0 |
304 |
238 |
1374 |
519 |
41 |
0 |
0 |
| ODI |
0 |
65 |
61 |
486 |
1147 |
207 |
4 |
2 |
| CDI |
0 |
31 |
41 |
306 |
1562 |
2058 |
157 |
25 |
| VCDI |
0 |
10 |
1 |
108 |
949 |
7333 |
25098 |
61213 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71706 |
14928 |
222 |
196 |
22 |
19 |
0 |
0 |
| OW |
10 |
1720 |
259 |
620 |
86 |
23 |
0 |
0 |
| VODI |
1 |
1033 |
195 |
835 |
389 |
57 |
2 |
0 |
| ODI |
0 |
432 |
141 |
561 |
777 |
174 |
38 |
1 |
| CDI |
0 |
227 |
138 |
571 |
1300 |
1132 |
317 |
13 |
| VCDI |
0 |
75 |
58 |
356 |
1718 |
8263 |
24902 |
61226 |
|
Date: 2025-02-05:
| 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 |
70113 |
16734 |
341 |
489 |
29 |
0 |
21 |
0 |
| OW |
0 |
1938 |
394 |
732 |
106 |
0 |
8 |
0 |
| VODI |
0 |
535 |
241 |
1062 |
810 |
42 |
8 |
0 |
| ODI |
0 |
104 |
91 |
457 |
1047 |
333 |
20 |
0 |
| CDI |
0 |
92 |
56 |
411 |
1330 |
1989 |
627 |
20 |
| VCDI |
0 |
84 |
59 |
303 |
1262 |
7045 |
26953 |
58857 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70113 |
15801 |
311 |
479 |
46 |
0 |
14 |
0 |
| OW |
0 |
1603 |
236 |
475 |
167 |
6 |
20 |
0 |
| VODI |
0 |
1155 |
217 |
839 |
612 |
39 |
15 |
0 |
| ODI |
0 |
467 |
194 |
547 |
877 |
282 |
59 |
0 |
| CDI |
0 |
268 |
117 |
592 |
1172 |
1528 |
602 |
36 |
| VCDI |
0 |
193 |
107 |
522 |
1710 |
7554 |
26927 |
58841 |
|
Date: 2025-02-07:
| 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 |
69830 |
16144 |
287 |
647 |
179 |
0 |
0 |
7 |
| OW |
33 |
1755 |
297 |
680 |
239 |
4 |
0 |
14 |
| VODI |
15 |
782 |
219 |
942 |
782 |
97 |
0 |
15 |
| ODI |
0 |
242 |
60 |
464 |
1089 |
576 |
48 |
7 |
| CDI |
0 |
151 |
98 |
468 |
1108 |
1691 |
436 |
92 |
| VCDI |
0 |
169 |
74 |
378 |
1064 |
7975 |
24457 |
61128 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69835 |
15280 |
284 |
807 |
233 |
1 |
0 |
6 |
| OW |
30 |
1533 |
158 |
374 |
288 |
31 |
0 |
18 |
| VODI |
13 |
1198 |
234 |
659 |
613 |
198 |
11 |
14 |
| ODI |
0 |
480 |
134 |
731 |
958 |
523 |
94 |
9 |
| CDI |
0 |
449 |
111 |
536 |
1030 |
1724 |
591 |
116 |
| VCDI |
0 |
303 |
114 |
472 |
1339 |
7866 |
24245 |
61100 |
|
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