Validation of sea ice concentration - European sector
Bulletin date: 2025-03-06
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-02-28:
| 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 |
61094 |
13966 |
254 |
165 |
13 |
0 |
0 |
0 |
| OW |
1 |
1147 |
348 |
583 |
69 |
0 |
0 |
0 |
| VODI |
0 |
453 |
227 |
865 |
355 |
3 |
0 |
0 |
| ODI |
0 |
86 |
75 |
487 |
627 |
114 |
0 |
0 |
| CDI |
0 |
34 |
12 |
327 |
1174 |
1248 |
121 |
1 |
| VCDI |
0 |
20 |
19 |
133 |
669 |
4246 |
6425 |
5055 |
|
...date precedes bulletin
|
Date: 2025-03-02:
| 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 |
61768 |
13102 |
341 |
352 |
33 |
0 |
0 |
0 |
| OW |
4 |
961 |
312 |
694 |
122 |
2 |
0 |
0 |
| VODI |
0 |
395 |
155 |
780 |
497 |
7 |
0 |
0 |
| ODI |
0 |
81 |
92 |
499 |
615 |
63 |
0 |
0 |
| CDI |
0 |
35 |
20 |
320 |
954 |
902 |
171 |
0 |
| VCDI |
0 |
20 |
26 |
153 |
694 |
5175 |
6424 |
4647 |
|
...date precedes bulletin
|
Date: 2025-03-04:
| 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 |
61074 |
13763 |
390 |
513 |
62 |
0 |
0 |
0 |
| OW |
6 |
882 |
327 |
799 |
158 |
2 |
0 |
0 |
| VODI |
0 |
144 |
121 |
996 |
548 |
13 |
0 |
0 |
| ODI |
0 |
9 |
27 |
414 |
888 |
107 |
0 |
0 |
| CDI |
0 |
0 |
2 |
206 |
999 |
1152 |
100 |
1 |
| VCDI |
0 |
2 |
0 |
91 |
560 |
5193 |
6668 |
4199 |
|
...date precedes bulletin
|
Date: 2025-03-06:
| 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 |
61285 |
13442 |
313 |
517 |
116 |
8 |
0 |
0 |
| OW |
18 |
889 |
330 |
639 |
137 |
15 |
0 |
0 |
| VODI |
1 |
241 |
151 |
773 |
555 |
46 |
0 |
0 |
| ODI |
0 |
29 |
25 |
407 |
657 |
137 |
0 |
0 |
| CDI |
0 |
5 |
2 |
312 |
910 |
1023 |
162 |
0 |
| VCDI |
0 |
4 |
0 |
61 |
785 |
4651 |
7125 |
4645 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
61274 |
13462 |
324 |
560 |
115 |
7 |
0 |
0 |
| OW |
29 |
863 |
314 |
610 |
138 |
12 |
0 |
0 |
| VODI |
1 |
255 |
160 |
741 |
548 |
51 |
0 |
0 |
| ODI |
0 |
24 |
21 |
409 |
646 |
136 |
0 |
0 |
| CDI |
0 |
2 |
2 |
314 |
907 |
1012 |
186 |
0 |
| VCDI |
0 |
4 |
0 |
75 |
806 |
4662 |
7101 |
4645 |
|
Date: 2025-03-08:
| 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 |
60323 |
14114 |
320 |
533 |
90 |
0 |
0 |
0 |
| OW |
17 |
966 |
250 |
647 |
162 |
6 |
0 |
0 |
| VODI |
1 |
343 |
128 |
814 |
465 |
61 |
0 |
0 |
| ODI |
0 |
49 |
58 |
559 |
609 |
157 |
6 |
0 |
| CDI |
0 |
3 |
6 |
332 |
1293 |
784 |
105 |
0 |
| VCDI |
0 |
4 |
0 |
76 |
859 |
3832 |
7673 |
4771 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60318 |
14104 |
320 |
606 |
99 |
0 |
0 |
0 |
| OW |
22 |
962 |
241 |
569 |
157 |
11 |
0 |
0 |
| VODI |
1 |
354 |
138 |
785 |
435 |
55 |
1 |
0 |
| ODI |
0 |
54 |
54 |
567 |
635 |
160 |
5 |
0 |
| CDI |
0 |
1 |
9 |
338 |
1249 |
796 |
170 |
0 |
| VCDI |
0 |
4 |
0 |
96 |
903 |
3818 |
7608 |
4771 |
|
Date: 2025-03-10:
| 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 |
60433 |
13778 |
399 |
436 |
52 |
0 |
0 |
0 |
| OW |
31 |
1042 |
351 |
719 |
135 |
6 |
0 |
0 |
| VODI |
0 |
148 |
142 |
1134 |
533 |
29 |
0 |
0 |
| ODI |
0 |
2 |
8 |
400 |
1106 |
277 |
6 |
0 |
| CDI |
0 |
0 |
0 |
151 |
894 |
2028 |
340 |
0 |
| VCDI |
0 |
0 |
0 |
24 |
307 |
2565 |
8497 |
4443 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60451 |
13490 |
432 |
502 |
64 |
0 |
0 |
0 |
| OW |
13 |
883 |
237 |
679 |
180 |
3 |
0 |
0 |
| VODI |
0 |
309 |
109 |
836 |
446 |
113 |
0 |
0 |
| ODI |
0 |
134 |
41 |
440 |
837 |
320 |
1 |
0 |
| CDI |
0 |
136 |
60 |
194 |
882 |
1442 |
367 |
0 |
| VCDI |
0 |
18 |
21 |
213 |
618 |
3027 |
8475 |
4443 |
|
Date: 2025-03-12:
| 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 |
60122 |
13579 |
361 |
650 |
75 |
1 |
0 |
0 |
| OW |
59 |
859 |
220 |
638 |
256 |
11 |
0 |
0 |
| VODI |
12 |
243 |
107 |
721 |
698 |
102 |
0 |
0 |
| ODI |
0 |
78 |
21 |
299 |
894 |
314 |
25 |
0 |
| CDI |
0 |
48 |
38 |
174 |
1027 |
1846 |
555 |
16 |
| VCDI |
0 |
15 |
16 |
69 |
319 |
3557 |
8687 |
3704 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60077 |
13384 |
349 |
632 |
83 |
0 |
0 |
0 |
| OW |
64 |
679 |
199 |
643 |
278 |
9 |
0 |
0 |
| VODI |
24 |
240 |
118 |
627 |
668 |
184 |
0 |
0 |
| ODI |
11 |
147 |
25 |
327 |
807 |
315 |
38 |
0 |
| CDI |
17 |
177 |
10 |
131 |
902 |
1424 |
552 |
0 |
| VCDI |
0 |
195 |
62 |
191 |
531 |
3899 |
8677 |
3720 |
|
Date: 2025-03-14:
| 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 |
59405 |
13745 |
331 |
528 |
101 |
0 |
0 |
0 |
| OW |
22 |
1014 |
227 |
596 |
261 |
12 |
0 |
0 |
| VODI |
0 |
197 |
172 |
797 |
668 |
160 |
0 |
0 |
| ODI |
0 |
40 |
17 |
383 |
794 |
325 |
36 |
0 |
| CDI |
0 |
36 |
11 |
129 |
1172 |
2202 |
948 |
0 |
| VCDI |
0 |
29 |
23 |
114 |
299 |
4959 |
7286 |
3377 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59334 |
13682 |
436 |
613 |
97 |
0 |
0 |
0 |
| OW |
62 |
623 |
132 |
718 |
311 |
13 |
0 |
0 |
| VODI |
17 |
298 |
75 |
595 |
750 |
199 |
2 |
0 |
| ODI |
14 |
167 |
47 |
244 |
784 |
347 |
64 |
0 |
| CDI |
0 |
165 |
57 |
193 |
879 |
1681 |
609 |
0 |
| VCDI |
0 |
126 |
34 |
184 |
474 |
5418 |
7595 |
3377 |
|
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