Validation of sea ice concentration - European sector
Bulletin date: 2025-12-04
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-28:
| 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 |
80019 |
7269 |
187 |
162 |
7 |
0 |
0 |
0 |
| OW |
40 |
394 |
109 |
352 |
88 |
17 |
0 |
0 |
| VODI |
9 |
141 |
72 |
285 |
139 |
50 |
0 |
0 |
| ODI |
0 |
27 |
29 |
163 |
169 |
18 |
0 |
0 |
| CDI |
0 |
9 |
40 |
117 |
415 |
302 |
0 |
0 |
| VCDI |
0 |
1 |
1 |
106 |
234 |
2160 |
5938 |
1347 |
|
...date precedes bulletin
|
Date: 2025-11-30:
| 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 |
80104 |
6734 |
117 |
218 |
21 |
0 |
0 |
0 |
| OW |
73 |
520 |
123 |
266 |
110 |
17 |
0 |
0 |
| VODI |
9 |
286 |
58 |
213 |
202 |
115 |
0 |
0 |
| ODI |
0 |
103 |
66 |
151 |
150 |
29 |
0 |
0 |
| CDI |
0 |
53 |
29 |
182 |
390 |
428 |
0 |
0 |
| VCDI |
0 |
3 |
27 |
124 |
247 |
2351 |
5981 |
916 |
|
...date precedes bulletin
|
Date: 2025-12-02:
| 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 |
79715 |
7137 |
131 |
105 |
0 |
0 |
0 |
0 |
| OW |
8 |
788 |
198 |
247 |
47 |
1 |
0 |
0 |
| VODI |
1 |
172 |
124 |
419 |
125 |
43 |
0 |
0 |
| ODI |
0 |
32 |
15 |
232 |
168 |
15 |
0 |
0 |
| CDI |
0 |
15 |
27 |
180 |
440 |
581 |
49 |
0 |
| VCDI |
0 |
6 |
14 |
116 |
155 |
1846 |
6275 |
989 |
|
...date precedes bulletin
|
Date: 2025-12-04:
| 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 |
78741 |
7871 |
157 |
112 |
1 |
0 |
0 |
0 |
| OW |
8 |
566 |
206 |
466 |
73 |
6 |
0 |
0 |
| VODI |
1 |
50 |
97 |
493 |
175 |
80 |
0 |
0 |
| ODI |
0 |
2 |
11 |
260 |
181 |
21 |
0 |
0 |
| CDI |
0 |
0 |
5 |
145 |
490 |
484 |
43 |
0 |
| VCDI |
0 |
0 |
0 |
68 |
194 |
1113 |
6646 |
1650 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78738 |
7900 |
143 |
116 |
1 |
0 |
0 |
0 |
| OW |
12 |
542 |
236 |
464 |
87 |
5 |
0 |
0 |
| VODI |
0 |
45 |
82 |
496 |
154 |
83 |
0 |
0 |
| ODI |
0 |
2 |
10 |
259 |
199 |
21 |
0 |
0 |
| CDI |
0 |
0 |
5 |
128 |
469 |
490 |
62 |
0 |
| VCDI |
0 |
0 |
0 |
81 |
204 |
1105 |
6627 |
1650 |
|
Date: 2025-12-06:
| 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 |
77705 |
8307 |
205 |
311 |
19 |
0 |
0 |
0 |
| OW |
9 |
566 |
177 |
425 |
139 |
33 |
0 |
0 |
| VODI |
1 |
95 |
107 |
397 |
167 |
83 |
0 |
0 |
| ODI |
0 |
8 |
13 |
318 |
225 |
30 |
0 |
0 |
| CDI |
0 |
0 |
0 |
89 |
692 |
477 |
65 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
97 |
977 |
5399 |
3278 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
77701 |
8333 |
222 |
360 |
21 |
0 |
0 |
0 |
| OW |
13 |
562 |
169 |
377 |
151 |
34 |
0 |
0 |
| VODI |
1 |
77 |
107 |
416 |
151 |
83 |
0 |
0 |
| ODI |
0 |
4 |
4 |
324 |
242 |
29 |
0 |
0 |
| CDI |
0 |
0 |
0 |
63 |
635 |
472 |
68 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
139 |
982 |
5396 |
3278 |
|
Date: 2025-12-08:
| 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 |
76479 |
9243 |
273 |
458 |
55 |
0 |
0 |
0 |
| OW |
8 |
453 |
162 |
413 |
215 |
15 |
0 |
0 |
| VODI |
3 |
40 |
105 |
406 |
200 |
57 |
1 |
0 |
| ODI |
0 |
0 |
2 |
265 |
242 |
52 |
4 |
0 |
| CDI |
0 |
0 |
1 |
98 |
640 |
379 |
67 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
185 |
922 |
4816 |
4152 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
76475 |
9131 |
256 |
397 |
52 |
0 |
0 |
0 |
| OW |
11 |
518 |
147 |
405 |
197 |
26 |
0 |
0 |
| VODI |
4 |
83 |
113 |
462 |
201 |
45 |
1 |
0 |
| ODI |
0 |
4 |
26 |
293 |
287 |
41 |
3 |
0 |
| CDI |
0 |
0 |
1 |
80 |
624 |
486 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
176 |
827 |
4860 |
4152 |
|
Date: 2025-12-10:
| 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 |
76367 |
9234 |
411 |
335 |
56 |
0 |
0 |
0 |
| OW |
25 |
220 |
242 |
498 |
142 |
0 |
0 |
0 |
| VODI |
12 |
2 |
30 |
464 |
180 |
14 |
0 |
0 |
| ODI |
3 |
0 |
0 |
232 |
259 |
58 |
5 |
0 |
| CDI |
0 |
0 |
0 |
77 |
748 |
528 |
90 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
214 |
713 |
5258 |
3992 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
76308 |
8810 |
359 |
371 |
50 |
0 |
0 |
0 |
| OW |
83 |
524 |
128 |
370 |
238 |
10 |
0 |
0 |
| VODI |
14 |
112 |
137 |
419 |
205 |
75 |
4 |
0 |
| ODI |
2 |
10 |
54 |
284 |
266 |
55 |
8 |
0 |
| CDI |
0 |
0 |
5 |
163 |
559 |
383 |
128 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
281 |
790 |
5213 |
3992 |
|
Date: 2025-12-12:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICmultiWebPage5sector.sh Fri Dec 12 02:20:27 UTC 2025 on arcval2