Validation of sea ice concentration - European sector
Bulletin date: 2025-03-06
Data source: OSI SAF N.H. AMSR 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 |
60598 |
13304 |
111 |
82 |
14 |
5 |
0 |
0 |
| OW |
753 |
1491 |
246 |
279 |
66 |
27 |
0 |
0 |
| VODI |
1861 |
596 |
256 |
612 |
333 |
41 |
1 |
0 |
| ODI |
1740 |
153 |
94 |
373 |
562 |
183 |
12 |
0 |
| CDI |
1 |
65 |
43 |
248 |
837 |
1351 |
290 |
1 |
| VCDI |
0 |
47 |
19 |
124 |
498 |
3932 |
9382 |
2231 |
|
...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 |
59935 |
13831 |
197 |
205 |
49 |
12 |
0 |
0 |
| OW |
713 |
1267 |
300 |
370 |
133 |
10 |
0 |
0 |
| VODI |
1842 |
499 |
171 |
645 |
414 |
51 |
9 |
0 |
| ODI |
1747 |
172 |
104 |
376 |
511 |
143 |
17 |
0 |
| CDI |
0 |
78 |
54 |
251 |
689 |
978 |
275 |
0 |
| VCDI |
0 |
64 |
27 |
124 |
549 |
4569 |
8720 |
2761 |
|
...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 |
60014 |
13706 |
294 |
324 |
74 |
12 |
0 |
0 |
| OW |
691 |
1288 |
297 |
407 |
161 |
29 |
1 |
0 |
| VODI |
1843 |
325 |
205 |
726 |
457 |
43 |
4 |
0 |
| ODI |
1746 |
86 |
54 |
352 |
684 |
217 |
9 |
0 |
| CDI |
0 |
20 |
35 |
177 |
687 |
1246 |
249 |
0 |
| VCDI |
0 |
19 |
13 |
58 |
460 |
4638 |
9200 |
2011 |
|
...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 |
59625 |
13986 |
247 |
318 |
118 |
39 |
0 |
0 |
| OW |
675 |
1211 |
232 |
395 |
154 |
27 |
5 |
0 |
| VODI |
1835 |
380 |
200 |
518 |
478 |
83 |
18 |
0 |
| ODI |
1758 |
91 |
74 |
278 |
580 |
177 |
21 |
0 |
| CDI |
0 |
16 |
44 |
253 |
692 |
1079 |
290 |
0 |
| VCDI |
0 |
0 |
6 |
95 |
685 |
4046 |
8628 |
3505 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59622 |
13981 |
285 |
349 |
124 |
33 |
0 |
0 |
| OW |
678 |
1208 |
189 |
377 |
157 |
23 |
5 |
0 |
| VODI |
1835 |
394 |
197 |
492 |
478 |
86 |
17 |
0 |
| ODI |
1758 |
79 |
78 |
281 |
555 |
182 |
22 |
0 |
| CDI |
0 |
21 |
42 |
258 |
682 |
1073 |
314 |
0 |
| VCDI |
0 |
1 |
12 |
100 |
711 |
4054 |
8604 |
3505 |
|
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 |
57964 |
15254 |
379 |
345 |
105 |
27 |
2 |
0 |
| OW |
724 |
1196 |
227 |
384 |
163 |
27 |
9 |
0 |
| VODI |
1830 |
467 |
232 |
521 |
377 |
128 |
30 |
0 |
| ODI |
1762 |
65 |
77 |
430 |
522 |
224 |
29 |
0 |
| CDI |
0 |
38 |
42 |
286 |
800 |
1012 |
260 |
0 |
| VCDI |
0 |
314 |
25 |
213 |
649 |
3100 |
8643 |
3980 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
57957 |
15247 |
396 |
371 |
130 |
26 |
3 |
0 |
| OW |
731 |
1184 |
203 |
359 |
150 |
24 |
14 |
0 |
| VODI |
1830 |
471 |
230 |
487 |
359 |
132 |
27 |
0 |
| ODI |
1762 |
76 |
84 |
440 |
525 |
221 |
34 |
0 |
| CDI |
0 |
50 |
40 |
298 |
783 |
998 |
309 |
0 |
| VCDI |
0 |
306 |
29 |
224 |
669 |
3117 |
8586 |
3980 |
|
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 |
59047 |
14024 |
365 |
271 |
91 |
17 |
0 |
0 |
| OW |
723 |
1397 |
271 |
428 |
174 |
43 |
3 |
0 |
| VODI |
1849 |
337 |
211 |
698 |
488 |
110 |
17 |
0 |
| ODI |
1737 |
36 |
65 |
342 |
782 |
404 |
51 |
0 |
| CDI |
0 |
4 |
16 |
165 |
673 |
1630 |
812 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
255 |
2422 |
9891 |
2997 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
59064 |
13722 |
402 |
341 |
110 |
14 |
0 |
0 |
| OW |
700 |
1197 |
177 |
396 |
221 |
46 |
2 |
0 |
| VODI |
1829 |
463 |
157 |
489 |
389 |
186 |
22 |
0 |
| ODI |
1763 |
213 |
51 |
333 |
650 |
355 |
63 |
0 |
| CDI |
0 |
173 |
85 |
179 |
599 |
1240 |
682 |
0 |
| VCDI |
0 |
30 |
56 |
182 |
494 |
2785 |
10005 |
2997 |
|
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 |
58980 |
13725 |
282 |
354 |
113 |
35 |
0 |
0 |
| OW |
726 |
1184 |
216 |
371 |
223 |
46 |
2 |
0 |
| VODI |
1846 |
353 |
168 |
480 |
549 |
165 |
44 |
0 |
| ODI |
1756 |
92 |
51 |
229 |
645 |
430 |
98 |
0 |
| CDI |
0 |
70 |
39 |
161 |
608 |
1747 |
950 |
16 |
| VCDI |
0 |
24 |
20 |
81 |
251 |
3599 |
8833 |
3300 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58935 |
13496 |
290 |
363 |
126 |
20 |
0 |
0 |
| OW |
733 |
997 |
185 |
387 |
227 |
56 |
1 |
0 |
| VODI |
1846 |
382 |
163 |
399 |
498 |
211 |
57 |
0 |
| ODI |
1778 |
173 |
51 |
237 |
624 |
413 |
100 |
0 |
| CDI |
16 |
178 |
23 |
120 |
488 |
1414 |
836 |
27 |
| VCDI |
0 |
222 |
64 |
170 |
426 |
3908 |
8933 |
3289 |
|
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 |
58329 |
13776 |
213 |
339 |
124 |
25 |
0 |
0 |
| OW |
658 |
1387 |
220 |
322 |
208 |
71 |
2 |
0 |
| VODI |
1829 |
359 |
211 |
473 |
553 |
263 |
33 |
0 |
| ODI |
1767 |
71 |
54 |
273 |
589 |
455 |
64 |
0 |
| CDI |
0 |
54 |
14 |
110 |
697 |
2234 |
1255 |
0 |
| VCDI |
0 |
57 |
34 |
136 |
181 |
4824 |
8032 |
2566 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
58262 |
13803 |
271 |
379 |
138 |
11 |
0 |
0 |
| OW |
692 |
904 |
225 |
398 |
256 |
87 |
4 |
0 |
| VODI |
1829 |
395 |
115 |
384 |
540 |
297 |
43 |
0 |
| ODI |
1799 |
207 |
46 |
171 |
562 |
489 |
98 |
0 |
| CDI |
1 |
224 |
45 |
145 |
526 |
1652 |
927 |
0 |
| VCDI |
0 |
171 |
44 |
176 |
330 |
5336 |
8314 |
2566 |
|
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