Validation of sea ice concentration - European sector
Bulletin date: 2025-03-13
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
59544 |
14060 |
234 |
261 |
89 |
28 |
0 |
0 |
| OW |
727 |
1183 |
235 |
377 |
140 |
21 |
11 |
0 |
| VODI |
1832 |
429 |
237 |
531 |
395 |
101 |
20 |
0 |
| ODI |
1760 |
100 |
78 |
320 |
507 |
190 |
27 |
0 |
| CDI |
0 |
32 |
45 |
282 |
619 |
1120 |
331 |
0 |
| VCDI |
0 |
27 |
24 |
192 |
540 |
3766 |
8099 |
4348 |
|
...date precedes bulletin
|
Date: 2025-03-09:
| 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 |
59268 |
13807 |
331 |
347 |
114 |
12 |
0 |
0 |
| OW |
719 |
1185 |
207 |
406 |
209 |
63 |
1 |
0 |
| VODI |
1833 |
461 |
189 |
581 |
320 |
147 |
18 |
0 |
| ODI |
1759 |
130 |
49 |
504 |
589 |
294 |
36 |
0 |
| CDI |
0 |
61 |
66 |
330 |
759 |
1133 |
363 |
1 |
| VCDI |
0 |
0 |
0 |
120 |
531 |
2898 |
9898 |
3123 |
|
...date precedes bulletin
|
Date: 2025-03-11:
| 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 |
59171 |
13843 |
271 |
291 |
115 |
25 |
0 |
0 |
| OW |
719 |
1276 |
208 |
387 |
164 |
52 |
9 |
0 |
| VODI |
1847 |
376 |
174 |
508 |
584 |
119 |
21 |
0 |
| ODI |
1747 |
71 |
51 |
274 |
717 |
340 |
87 |
0 |
| CDI |
0 |
48 |
28 |
176 |
820 |
1606 |
977 |
0 |
| VCDI |
0 |
10 |
13 |
99 |
331 |
3057 |
9178 |
3072 |
|
...date precedes bulletin
|
Date: 2025-03-13:
| 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 |
59045 |
13586 |
211 |
271 |
93 |
23 |
0 |
0 |
| OW |
736 |
1308 |
211 |
328 |
148 |
53 |
3 |
0 |
| VODI |
1840 |
409 |
204 |
541 |
474 |
181 |
59 |
0 |
| ODI |
1762 |
88 |
57 |
278 |
625 |
375 |
93 |
0 |
| CDI |
0 |
79 |
39 |
164 |
582 |
1811 |
889 |
40 |
| VCDI |
0 |
29 |
19 |
111 |
223 |
4952 |
7927 |
2995 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59049 |
13644 |
222 |
290 |
105 |
25 |
0 |
0 |
| OW |
726 |
1235 |
195 |
302 |
136 |
58 |
3 |
0 |
| VODI |
1848 |
429 |
213 |
524 |
481 |
188 |
60 |
0 |
| ODI |
1760 |
92 |
60 |
308 |
616 |
413 |
110 |
0 |
| CDI |
0 |
69 |
31 |
150 |
576 |
1796 |
982 |
53 |
| VCDI |
0 |
30 |
20 |
119 |
231 |
4915 |
7816 |
2982 |
|
Date: 2025-03-15:
| 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 |
58291 |
13618 |
249 |
315 |
84 |
12 |
0 |
0 |
| OW |
648 |
1449 |
228 |
327 |
205 |
63 |
5 |
0 |
| VODI |
1822 |
403 |
252 |
455 |
546 |
231 |
12 |
0 |
| ODI |
1777 |
66 |
65 |
321 |
564 |
393 |
44 |
0 |
| CDI |
0 |
54 |
11 |
132 |
782 |
2060 |
1172 |
0 |
| VCDI |
0 |
46 |
22 |
120 |
259 |
4761 |
8499 |
2499 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58290 |
13642 |
258 |
328 |
89 |
10 |
0 |
0 |
| OW |
651 |
1409 |
221 |
321 |
222 |
63 |
6 |
0 |
| VODI |
1824 |
427 |
255 |
451 |
546 |
232 |
9 |
0 |
| ODI |
1773 |
76 |
60 |
332 |
594 |
440 |
47 |
0 |
| CDI |
0 |
43 |
14 |
121 |
742 |
2097 |
1186 |
0 |
| VCDI |
0 |
39 |
19 |
117 |
247 |
4678 |
8484 |
2499 |
|
Date: 2025-03-17:
| 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 |
58420 |
14009 |
171 |
153 |
88 |
13 |
0 |
0 |
| OW |
650 |
1411 |
303 |
408 |
185 |
68 |
16 |
0 |
| VODI |
1826 |
268 |
187 |
535 |
502 |
160 |
9 |
0 |
| ODI |
1770 |
38 |
42 |
210 |
752 |
445 |
15 |
0 |
| CDI |
0 |
18 |
20 |
194 |
896 |
2574 |
329 |
0 |
| VCDI |
0 |
0 |
4 |
41 |
174 |
4669 |
8708 |
2581 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58413 |
13471 |
152 |
164 |
100 |
13 |
0 |
0 |
| OW |
653 |
1581 |
240 |
328 |
159 |
81 |
14 |
0 |
| VODI |
1816 |
508 |
212 |
442 |
403 |
187 |
17 |
0 |
| ODI |
1784 |
114 |
66 |
263 |
638 |
341 |
22 |
0 |
| CDI |
0 |
47 |
38 |
243 |
1000 |
2197 |
815 |
0 |
| VCDI |
0 |
23 |
19 |
101 |
297 |
5110 |
8209 |
2581 |
|
Date: 2025-03-19:
| 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 |
58481 |
13733 |
172 |
171 |
63 |
0 |
0 |
0 |
| OW |
617 |
1160 |
277 |
487 |
229 |
31 |
13 |
0 |
| VODI |
1816 |
244 |
148 |
492 |
599 |
141 |
4 |
0 |
| ODI |
1784 |
35 |
50 |
246 |
683 |
571 |
5 |
0 |
| CDI |
0 |
22 |
14 |
129 |
762 |
3249 |
918 |
0 |
| VCDI |
0 |
24 |
12 |
48 |
364 |
4777 |
8743 |
1548 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58479 |
13083 |
164 |
174 |
78 |
0 |
0 |
0 |
| OW |
617 |
1498 |
235 |
460 |
221 |
32 |
11 |
0 |
| VODI |
1812 |
425 |
174 |
438 |
628 |
278 |
6 |
0 |
| ODI |
1790 |
115 |
53 |
257 |
567 |
580 |
13 |
0 |
| CDI |
0 |
31 |
27 |
158 |
741 |
2802 |
1015 |
0 |
| VCDI |
0 |
66 |
20 |
86 |
465 |
5077 |
8638 |
1548 |
|
Date: 2025-03-21:
| 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 |
58223 |
13619 |
225 |
197 |
60 |
6 |
1 |
0 |
| OW |
613 |
1127 |
224 |
488 |
220 |
65 |
8 |
0 |
| VODI |
1810 |
321 |
157 |
529 |
635 |
130 |
16 |
0 |
| ODI |
1792 |
73 |
56 |
242 |
707 |
468 |
22 |
0 |
| CDI |
0 |
41 |
26 |
119 |
1016 |
2860 |
1395 |
0 |
| VCDI |
0 |
13 |
12 |
53 |
411 |
4218 |
8339 |
2325 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58221 |
13208 |
241 |
342 |
106 |
10 |
1 |
0 |
| OW |
612 |
1189 |
196 |
463 |
308 |
93 |
12 |
0 |
| VODI |
1805 |
488 |
103 |
307 |
597 |
212 |
16 |
0 |
| ODI |
1800 |
187 |
75 |
237 |
501 |
489 |
34 |
0 |
| CDI |
0 |
71 |
56 |
186 |
1000 |
2229 |
1183 |
0 |
| VCDI |
0 |
51 |
29 |
93 |
537 |
4714 |
8535 |
2325 |
|
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