Validation of sea ice concentration - European sector
Bulletin date: 2025-06-19
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-06-13:
| 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 |
67092 |
12315 |
88 |
56 |
4 |
0 |
0 |
0 |
| OW |
945 |
1942 |
325 |
364 |
70 |
4 |
0 |
0 |
| VODI |
3466 |
350 |
284 |
1428 |
643 |
61 |
0 |
0 |
| ODI |
0 |
37 |
47 |
350 |
969 |
471 |
31 |
0 |
| CDI |
0 |
0 |
5 |
85 |
534 |
1439 |
1847 |
3 |
| VCDI |
0 |
0 |
0 |
9 |
19 |
771 |
5767 |
1041 |
|
...date precedes bulletin
|
Date: 2025-06-15:
| 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 |
68629 |
10724 |
68 |
45 |
8 |
0 |
0 |
0 |
| OW |
1037 |
2022 |
379 |
362 |
78 |
8 |
0 |
0 |
| VODI |
3305 |
480 |
297 |
1449 |
587 |
54 |
2 |
0 |
| ODI |
0 |
72 |
44 |
442 |
902 |
375 |
51 |
0 |
| CDI |
0 |
2 |
3 |
150 |
635 |
1519 |
2108 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
15 |
273 |
3821 |
2914 |
|
...date precedes bulletin
|
Date: 2025-06-17:
| 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 |
68811 |
11519 |
104 |
61 |
10 |
2 |
0 |
0 |
| OW |
1043 |
1773 |
413 |
424 |
23 |
2 |
0 |
0 |
| VODI |
3295 |
219 |
272 |
1596 |
562 |
25 |
0 |
0 |
| ODI |
0 |
6 |
10 |
329 |
950 |
334 |
7 |
0 |
| CDI |
0 |
1 |
5 |
47 |
421 |
1204 |
651 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
38 |
507 |
5399 |
2799 |
|
...date precedes bulletin
|
Date: 2025-06-19:
| 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 |
70039 |
10579 |
37 |
18 |
2 |
0 |
0 |
0 |
| OW |
1135 |
1875 |
355 |
311 |
24 |
0 |
0 |
0 |
| VODI |
3278 |
434 |
304 |
1330 |
517 |
39 |
0 |
0 |
| ODI |
0 |
15 |
28 |
307 |
763 |
324 |
28 |
0 |
| CDI |
0 |
5 |
15 |
102 |
491 |
1092 |
809 |
0 |
| VCDI |
0 |
0 |
3 |
17 |
54 |
264 |
5609 |
2659 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69948 |
10803 |
50 |
18 |
2 |
0 |
0 |
0 |
| OW |
1225 |
1674 |
339 |
326 |
30 |
0 |
0 |
0 |
| VODI |
3279 |
410 |
305 |
1318 |
546 |
50 |
0 |
0 |
| ODI |
0 |
17 |
31 |
278 |
685 |
302 |
32 |
0 |
| CDI |
0 |
4 |
15 |
127 |
529 |
1065 |
860 |
0 |
| VCDI |
0 |
0 |
2 |
18 |
59 |
302 |
5554 |
2659 |
|
Date: 2025-06-21:
| 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 |
70160 |
10381 |
60 |
25 |
3 |
1 |
0 |
0 |
| OW |
1081 |
1995 |
393 |
350 |
27 |
0 |
0 |
0 |
| VODI |
3267 |
538 |
344 |
1189 |
463 |
41 |
0 |
0 |
| ODI |
0 |
36 |
53 |
333 |
728 |
259 |
23 |
0 |
| CDI |
0 |
15 |
20 |
132 |
532 |
1232 |
752 |
0 |
| VCDI |
0 |
8 |
4 |
22 |
66 |
652 |
4819 |
2858 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70075 |
10596 |
97 |
35 |
4 |
1 |
0 |
0 |
| OW |
1165 |
1799 |
376 |
363 |
31 |
1 |
0 |
0 |
| VODI |
3268 |
516 |
316 |
1157 |
510 |
55 |
2 |
0 |
| ODI |
0 |
41 |
57 |
307 |
596 |
240 |
22 |
0 |
| CDI |
0 |
13 |
24 |
167 |
589 |
1195 |
761 |
0 |
| VCDI |
0 |
8 |
4 |
22 |
89 |
693 |
4809 |
2858 |
|
Date: 2025-06-23:
| 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 |
71466 |
9268 |
105 |
64 |
3 |
0 |
0 |
0 |
| OW |
1276 |
1921 |
325 |
319 |
46 |
2 |
0 |
0 |
| VODI |
3249 |
575 |
343 |
905 |
422 |
50 |
2 |
0 |
| ODI |
0 |
49 |
65 |
355 |
655 |
138 |
29 |
0 |
| CDI |
0 |
38 |
42 |
225 |
742 |
1331 |
827 |
75 |
| VCDI |
0 |
10 |
9 |
35 |
85 |
844 |
4497 |
2470 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71461 |
9154 |
115 |
57 |
4 |
1 |
0 |
0 |
| OW |
1281 |
1995 |
314 |
321 |
30 |
1 |
1 |
0 |
| VODI |
3249 |
615 |
332 |
926 |
444 |
46 |
4 |
0 |
| ODI |
0 |
63 |
86 |
356 |
634 |
179 |
49 |
0 |
| CDI |
0 |
24 |
32 |
206 |
748 |
1314 |
678 |
77 |
| VCDI |
0 |
10 |
10 |
37 |
93 |
824 |
4623 |
2468 |
|
Date: 2025-06-25:
| 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 |
72004 |
9708 |
74 |
43 |
5 |
0 |
0 |
0 |
| OW |
1179 |
1925 |
360 |
278 |
19 |
0 |
0 |
0 |
| VODI |
3220 |
264 |
269 |
1076 |
369 |
48 |
3 |
0 |
| ODI |
0 |
21 |
22 |
292 |
874 |
294 |
25 |
0 |
| CDI |
0 |
12 |
44 |
148 |
439 |
1323 |
791 |
0 |
| VCDI |
0 |
0 |
1 |
7 |
35 |
1332 |
6269 |
89 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71917 |
8785 |
103 |
70 |
6 |
0 |
0 |
0 |
| OW |
1253 |
2267 |
247 |
323 |
42 |
0 |
0 |
0 |
| VODI |
3233 |
720 |
273 |
758 |
389 |
59 |
12 |
0 |
| ODI |
0 |
106 |
73 |
397 |
529 |
187 |
83 |
0 |
| CDI |
0 |
48 |
52 |
253 |
688 |
1491 |
1714 |
0 |
| VCDI |
0 |
4 |
22 |
43 |
87 |
1260 |
5279 |
89 |
|
Date: 2025-06-27:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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