Validation of sea ice concentration - European sector
Bulletin date: 2025-02-27
Data source: OSI SAF N.H. AMSR 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 |
59614 |
14611 |
121 |
110 |
26 |
0 |
0 |
0 |
| OW |
748 |
1244 |
210 |
276 |
102 |
11 |
0 |
0 |
| VODI |
1843 |
474 |
157 |
337 |
379 |
106 |
7 |
0 |
| ODI |
1746 |
184 |
80 |
269 |
336 |
406 |
76 |
0 |
| CDI |
0 |
88 |
72 |
198 |
508 |
891 |
1032 |
0 |
| VCDI |
0 |
40 |
17 |
122 |
240 |
2254 |
10358 |
3569 |
|
...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 |
60973 |
13027 |
128 |
89 |
29 |
0 |
0 |
0 |
| OW |
814 |
1300 |
156 |
235 |
123 |
24 |
10 |
0 |
| VODI |
1840 |
492 |
227 |
415 |
264 |
83 |
29 |
0 |
| ODI |
1749 |
180 |
97 |
385 |
465 |
258 |
45 |
0 |
| CDI |
0 |
87 |
69 |
277 |
718 |
1336 |
456 |
0 |
| VCDI |
0 |
15 |
25 |
135 |
307 |
3006 |
9329 |
3665 |
|
...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 |
61329 |
12576 |
128 |
143 |
30 |
4 |
0 |
0 |
| OW |
737 |
1369 |
270 |
289 |
56 |
29 |
11 |
0 |
| VODI |
1855 |
429 |
279 |
725 |
316 |
65 |
27 |
0 |
| ODI |
1731 |
96 |
72 |
449 |
737 |
204 |
37 |
0 |
| CDI |
0 |
13 |
19 |
224 |
795 |
1467 |
483 |
0 |
| VCDI |
0 |
10 |
3 |
44 |
297 |
2936 |
8234 |
4344 |
|
...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 |
60055 |
13848 |
110 |
81 |
11 |
2 |
0 |
0 |
| OW |
738 |
1471 |
256 |
244 |
79 |
20 |
7 |
0 |
| VODI |
1849 |
596 |
255 |
700 |
279 |
64 |
6 |
0 |
| ODI |
1737 |
180 |
96 |
362 |
592 |
219 |
32 |
0 |
| CDI |
0 |
71 |
35 |
277 |
860 |
1361 |
518 |
0 |
| VCDI |
0 |
35 |
24 |
141 |
519 |
3553 |
7940 |
3639 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60055 |
13908 |
118 |
87 |
6 |
1 |
0 |
0 |
| OW |
738 |
1414 |
258 |
245 |
86 |
19 |
6 |
0 |
| VODI |
1851 |
596 |
237 |
689 |
268 |
75 |
6 |
0 |
| ODI |
1735 |
179 |
101 |
369 |
582 |
216 |
45 |
0 |
| CDI |
0 |
69 |
41 |
281 |
912 |
1366 |
527 |
0 |
| VCDI |
0 |
35 |
21 |
134 |
486 |
3542 |
7919 |
3639 |
|
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 |
59973 |
13666 |
322 |
198 |
39 |
6 |
0 |
0 |
| OW |
722 |
1396 |
258 |
356 |
104 |
16 |
0 |
0 |
| VODI |
1843 |
583 |
248 |
575 |
359 |
61 |
8 |
0 |
| ODI |
1745 |
141 |
95 |
369 |
513 |
162 |
16 |
0 |
| CDI |
0 |
63 |
37 |
256 |
744 |
1000 |
326 |
0 |
| VCDI |
0 |
66 |
19 |
83 |
460 |
4038 |
8884 |
3112 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59974 |
13750 |
337 |
232 |
38 |
6 |
0 |
0 |
| OW |
721 |
1316 |
239 |
327 |
119 |
25 |
1 |
0 |
| VODI |
1844 |
552 |
256 |
591 |
371 |
74 |
10 |
0 |
| ODI |
1744 |
164 |
83 |
354 |
479 |
159 |
18 |
0 |
| CDI |
0 |
71 |
48 |
253 |
742 |
934 |
356 |
0 |
| VCDI |
0 |
62 |
16 |
80 |
470 |
4085 |
8849 |
3112 |
|
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 |
59320 |
14576 |
221 |
246 |
68 |
5 |
0 |
0 |
| OW |
692 |
1457 |
281 |
415 |
143 |
18 |
1 |
0 |
| VODI |
1851 |
373 |
231 |
804 |
446 |
73 |
6 |
0 |
| ODI |
1735 |
64 |
55 |
315 |
729 |
227 |
45 |
0 |
| CDI |
0 |
34 |
27 |
179 |
610 |
1613 |
397 |
0 |
| VCDI |
0 |
12 |
9 |
55 |
327 |
3910 |
9105 |
2187 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59320 |
14238 |
226 |
325 |
75 |
17 |
0 |
0 |
| OW |
689 |
1350 |
201 |
339 |
179 |
21 |
2 |
0 |
| VODI |
1835 |
499 |
196 |
483 |
416 |
96 |
11 |
0 |
| ODI |
1754 |
232 |
96 |
383 |
419 |
105 |
38 |
0 |
| CDI |
0 |
130 |
64 |
303 |
669 |
874 |
284 |
0 |
| VCDI |
0 |
67 |
41 |
181 |
565 |
4733 |
9219 |
2187 |
|
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 |
60063 |
13623 |
280 |
338 |
110 |
25 |
0 |
0 |
| OW |
688 |
1143 |
227 |
462 |
179 |
35 |
3 |
0 |
| VODI |
1836 |
286 |
183 |
607 |
470 |
78 |
14 |
0 |
| ODI |
1755 |
88 |
53 |
350 |
657 |
206 |
23 |
0 |
| CDI |
0 |
27 |
43 |
197 |
744 |
1062 |
281 |
1 |
| VCDI |
0 |
0 |
3 |
96 |
656 |
4241 |
8484 |
3245 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
60072 |
12934 |
276 |
405 |
134 |
35 |
1 |
0 |
| OW |
678 |
1294 |
206 |
362 |
161 |
28 |
8 |
0 |
| VODI |
1829 |
560 |
162 |
514 |
349 |
91 |
22 |
0 |
| ODI |
1763 |
208 |
52 |
308 |
515 |
144 |
18 |
0 |
| CDI |
0 |
154 |
68 |
254 |
780 |
779 |
159 |
0 |
| VCDI |
0 |
17 |
25 |
207 |
877 |
4570 |
8597 |
3246 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59553 |
13538 |
238 |
233 |
114 |
38 |
1 |
0 |
| OW |
715 |
1344 |
213 |
324 |
137 |
41 |
13 |
0 |
| VODI |
1828 |
504 |
206 |
487 |
355 |
103 |
18 |
0 |
| ODI |
1767 |
188 |
77 |
337 |
415 |
176 |
30 |
0 |
| CDI |
0 |
188 |
67 |
248 |
638 |
824 |
235 |
0 |
| VCDI |
0 |
69 |
52 |
334 |
631 |
4044 |
8191 |
4348 |
|
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