Validation of sea ice concentration - European sector
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 |
61275 |
14040 |
252 |
226 |
10 |
0 |
0 |
0 |
| OW |
0 |
856 |
269 |
595 |
123 |
0 |
0 |
0 |
| VODI |
0 |
184 |
142 |
649 |
471 |
47 |
0 |
0 |
| ODI |
0 |
62 |
48 |
370 |
557 |
325 |
34 |
0 |
| CDI |
0 |
23 |
28 |
246 |
758 |
1006 |
801 |
0 |
| VCDI |
0 |
12 |
11 |
142 |
464 |
2574 |
10056 |
3760 |
|
...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 |
61985 |
13107 |
226 |
247 |
16 |
0 |
0 |
0 |
| OW |
93 |
902 |
290 |
486 |
132 |
8 |
0 |
0 |
| VODI |
0 |
225 |
194 |
738 |
345 |
49 |
0 |
0 |
| ODI |
0 |
46 |
71 |
524 |
597 |
234 |
14 |
0 |
| CDI |
0 |
26 |
25 |
307 |
1077 |
1366 |
217 |
0 |
| VCDI |
0 |
5 |
5 |
135 |
549 |
2925 |
8864 |
4386 |
|
...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 |
62625 |
12541 |
193 |
187 |
13 |
0 |
0 |
0 |
| OW |
7 |
1033 |
373 |
559 |
65 |
13 |
0 |
0 |
| VODI |
0 |
236 |
203 |
1038 |
382 |
42 |
1 |
0 |
| ODI |
0 |
53 |
19 |
486 |
934 |
107 |
10 |
0 |
| CDI |
0 |
8 |
6 |
190 |
1178 |
1422 |
282 |
0 |
| VCDI |
0 |
14 |
1 |
65 |
483 |
3140 |
6581 |
5926 |
|
...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 |
61046 |
13943 |
262 |
217 |
9 |
0 |
0 |
0 |
| OW |
0 |
1137 |
302 |
557 |
102 |
1 |
0 |
0 |
| VODI |
0 |
413 |
232 |
941 |
365 |
3 |
0 |
0 |
| ODI |
0 |
91 |
52 |
475 |
779 |
126 |
0 |
0 |
| CDI |
0 |
27 |
18 |
291 |
1201 |
1444 |
212 |
0 |
| VCDI |
0 |
8 |
12 |
165 |
713 |
3882 |
7323 |
4067 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61046 |
13980 |
283 |
223 |
11 |
0 |
0 |
0 |
| OW |
0 |
1112 |
293 |
551 |
96 |
0 |
0 |
0 |
| VODI |
0 |
415 |
213 |
939 |
364 |
3 |
0 |
0 |
| ODI |
0 |
79 |
58 |
472 |
787 |
130 |
0 |
0 |
| CDI |
0 |
22 |
21 |
308 |
1232 |
1456 |
230 |
0 |
| VCDI |
0 |
11 |
10 |
153 |
679 |
3867 |
7305 |
4067 |
|
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 |
60973 |
13985 |
223 |
385 |
9 |
0 |
0 |
0 |
| OW |
2 |
1026 |
303 |
739 |
78 |
3 |
0 |
0 |
| VODI |
0 |
415 |
216 |
835 |
403 |
7 |
0 |
0 |
| ODI |
0 |
68 |
38 |
489 |
652 |
70 |
0 |
0 |
| CDI |
0 |
36 |
9 |
252 |
1126 |
905 |
174 |
0 |
| VCDI |
0 |
27 |
20 |
120 |
617 |
4808 |
6894 |
4509 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60974 |
14053 |
250 |
428 |
7 |
0 |
0 |
0 |
| OW |
1 |
962 |
281 |
697 |
98 |
5 |
0 |
0 |
| VODI |
0 |
409 |
196 |
843 |
431 |
11 |
0 |
0 |
| ODI |
0 |
78 |
45 |
473 |
624 |
70 |
0 |
0 |
| CDI |
0 |
30 |
18 |
260 |
1090 |
892 |
189 |
0 |
| VCDI |
0 |
25 |
19 |
119 |
635 |
4815 |
6879 |
4509 |
|
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 |
61295 |
13672 |
356 |
453 |
40 |
0 |
0 |
0 |
| OW |
0 |
1021 |
371 |
754 |
139 |
2 |
0 |
0 |
| VODI |
0 |
149 |
135 |
1162 |
547 |
6 |
0 |
0 |
| ODI |
0 |
24 |
20 |
340 |
968 |
116 |
0 |
0 |
| CDI |
0 |
7 |
20 |
155 |
987 |
1612 |
158 |
0 |
| VCDI |
0 |
0 |
0 |
74 |
417 |
4508 |
6545 |
4363 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61289 |
13244 |
379 |
599 |
49 |
0 |
0 |
0 |
| OW |
6 |
1053 |
228 |
592 |
214 |
2 |
0 |
0 |
| VODI |
0 |
374 |
140 |
676 |
552 |
17 |
0 |
0 |
| ODI |
0 |
122 |
76 |
494 |
546 |
79 |
0 |
0 |
| CDI |
0 |
55 |
50 |
361 |
974 |
757 |
175 |
0 |
| VCDI |
0 |
25 |
29 |
216 |
763 |
5389 |
6528 |
4363 |
|
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 |
60898 |
13778 |
380 |
640 |
108 |
2 |
0 |
0 |
| OW |
12 |
825 |
258 |
762 |
180 |
10 |
0 |
0 |
| VODI |
1 |
149 |
115 |
832 |
575 |
38 |
0 |
0 |
| ODI |
0 |
10 |
17 |
448 |
788 |
155 |
0 |
0 |
| CDI |
0 |
1 |
1 |
251 |
945 |
1057 |
139 |
1 |
| VCDI |
0 |
2 |
1 |
56 |
820 |
4633 |
7556 |
3972 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60911 |
13108 |
366 |
691 |
127 |
2 |
0 |
0 |
| OW |
0 |
1025 |
178 |
641 |
195 |
15 |
0 |
0 |
| VODI |
0 |
425 |
110 |
730 |
468 |
42 |
0 |
0 |
| ODI |
0 |
149 |
53 |
403 |
578 |
115 |
0 |
0 |
| CDI |
0 |
53 |
57 |
356 |
968 |
740 |
51 |
0 |
| VCDI |
0 |
5 |
8 |
168 |
1080 |
4981 |
7644 |
3973 |
|
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 |
61087 |
13577 |
343 |
465 |
76 |
3 |
0 |
0 |
| OW |
34 |
972 |
294 |
577 |
121 |
18 |
0 |
0 |
| VODI |
0 |
256 |
190 |
850 |
437 |
57 |
2 |
0 |
| ODI |
0 |
29 |
49 |
500 |
541 |
119 |
7 |
0 |
| CDI |
0 |
4 |
7 |
378 |
952 |
982 |
186 |
0 |
| VCDI |
0 |
5 |
0 |
136 |
964 |
4111 |
6956 |
5131 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61097 |
12998 |
361 |
474 |
105 |
7 |
0 |
0 |
| OW |
24 |
1172 |
200 |
516 |
166 |
26 |
0 |
0 |
| VODI |
0 |
410 |
165 |
726 |
380 |
73 |
1 |
0 |
| ODI |
0 |
165 |
64 |
480 |
441 |
103 |
7 |
0 |
| CDI |
0 |
87 |
70 |
427 |
887 |
714 |
98 |
0 |
| VCDI |
0 |
11 |
23 |
283 |
1112 |
4367 |
7045 |
5131 |
|
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