Validation of sea ice concentration - European sector
Bulletin date: 2025-10-23
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-17:
| 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 |
87056 |
3611 |
204 |
242 |
8 |
0 |
0 |
0 |
| OW |
0 |
50 |
70 |
410 |
54 |
21 |
0 |
0 |
| VODI |
0 |
0 |
0 |
198 |
287 |
90 |
0 |
0 |
| ODI |
0 |
0 |
0 |
40 |
283 |
133 |
0 |
0 |
| CDI |
0 |
0 |
0 |
13 |
207 |
597 |
42 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
45 |
4191 |
2564 |
0 |
|
...date precedes bulletin
|
Date: 2025-10-19:
| 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 |
86455 |
3638 |
176 |
302 |
65 |
2 |
0 |
0 |
| OW |
0 |
106 |
66 |
275 |
164 |
6 |
0 |
0 |
| VODI |
0 |
0 |
2 |
227 |
340 |
34 |
0 |
0 |
| ODI |
0 |
0 |
0 |
4 |
383 |
214 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
186 |
791 |
3 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
42 |
4955 |
1980 |
0 |
|
...date precedes bulletin
|
Date: 2025-10-21:
| 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 |
86181 |
4004 |
167 |
183 |
0 |
2 |
0 |
0 |
| OW |
0 |
67 |
110 |
264 |
40 |
7 |
0 |
0 |
| VODI |
0 |
0 |
5 |
286 |
216 |
7 |
0 |
0 |
| ODI |
0 |
0 |
0 |
52 |
381 |
45 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
422 |
949 |
3 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
4695 |
1907 |
405 |
|
...date precedes bulletin
|
Date: 2025-10-23:
| 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 |
85950 |
4037 |
159 |
303 |
0 |
0 |
0 |
0 |
| OW |
0 |
77 |
93 |
274 |
67 |
1 |
0 |
0 |
| VODI |
0 |
0 |
4 |
178 |
255 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
40 |
326 |
29 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
433 |
540 |
95 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
3321 |
4120 |
92 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
85950 |
4040 |
167 |
279 |
0 |
0 |
0 |
0 |
| OW |
0 |
74 |
85 |
284 |
48 |
1 |
0 |
0 |
| VODI |
0 |
0 |
4 |
196 |
260 |
5 |
0 |
0 |
| ODI |
0 |
0 |
0 |
36 |
317 |
31 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
454 |
620 |
91 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
20 |
3237 |
4124 |
92 |
|
Date: 2025-10-25:
| 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 |
85397 |
4375 |
206 |
285 |
14 |
0 |
0 |
0 |
| OW |
0 |
45 |
60 |
284 |
106 |
0 |
0 |
0 |
| VODI |
0 |
1 |
1 |
159 |
222 |
37 |
0 |
0 |
| ODI |
0 |
0 |
0 |
30 |
211 |
114 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
258 |
564 |
48 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2649 |
4844 |
501 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
85397 |
4369 |
210 |
301 |
15 |
0 |
0 |
0 |
| OW |
0 |
51 |
57 |
256 |
98 |
0 |
0 |
0 |
| VODI |
0 |
1 |
0 |
173 |
226 |
27 |
0 |
0 |
| ODI |
0 |
0 |
0 |
31 |
220 |
95 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
252 |
601 |
40 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2641 |
4852 |
501 |
|
Date: 2025-10-27:
| 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 |
85385 |
4239 |
190 |
265 |
21 |
0 |
0 |
0 |
| OW |
0 |
3 |
44 |
283 |
93 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
193 |
238 |
13 |
0 |
0 |
| ODI |
0 |
0 |
0 |
20 |
340 |
246 |
1 |
0 |
| CDI |
0 |
0 |
0 |
1 |
157 |
313 |
47 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
1949 |
6035 |
335 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
85385 |
4213 |
164 |
283 |
66 |
0 |
0 |
0 |
| OW |
0 |
29 |
66 |
220 |
116 |
1 |
0 |
0 |
| VODI |
0 |
0 |
4 |
194 |
173 |
38 |
0 |
0 |
| ODI |
0 |
0 |
0 |
61 |
179 |
114 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
308 |
380 |
116 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
1988 |
5967 |
335 |
|
Date: 2025-10-29:
| 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 |
85440 |
4301 |
191 |
125 |
3 |
0 |
0 |
0 |
| OW |
0 |
24 |
67 |
227 |
38 |
0 |
0 |
0 |
| VODI |
0 |
0 |
2 |
307 |
102 |
10 |
0 |
0 |
| ODI |
0 |
0 |
0 |
80 |
294 |
70 |
0 |
0 |
| CDI |
0 |
0 |
0 |
15 |
310 |
206 |
26 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
97 |
2756 |
5416 |
309 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
85440 |
4264 |
154 |
139 |
5 |
0 |
0 |
0 |
| OW |
0 |
53 |
81 |
195 |
63 |
0 |
0 |
0 |
| VODI |
0 |
8 |
23 |
253 |
102 |
9 |
0 |
0 |
| ODI |
0 |
0 |
2 |
121 |
163 |
76 |
0 |
0 |
| CDI |
0 |
0 |
0 |
46 |
396 |
273 |
95 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
115 |
2684 |
5347 |
309 |
|
Date: 2025-10-31:
| 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 |
85127 |
4862 |
99 |
49 |
0 |
0 |
0 |
0 |
| OW |
0 |
150 |
113 |
133 |
6 |
0 |
0 |
0 |
| VODI |
0 |
28 |
46 |
256 |
79 |
0 |
0 |
0 |
| ODI |
0 |
0 |
6 |
102 |
200 |
26 |
0 |
0 |
| CDI |
0 |
0 |
0 |
47 |
323 |
195 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
51 |
2196 |
6025 |
297 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
85127 |
4711 |
67 |
67 |
0 |
0 |
0 |
0 |
| OW |
0 |
233 |
95 |
59 |
16 |
0 |
0 |
0 |
| VODI |
0 |
62 |
74 |
206 |
36 |
7 |
0 |
0 |
| ODI |
0 |
26 |
9 |
133 |
120 |
26 |
0 |
0 |
| CDI |
0 |
8 |
19 |
116 |
403 |
161 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
84 |
2223 |
6001 |
297 |
|
Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICmultiWebPage5sector.sh Fri Nov 7 02:30:59 UTC 2025 on arcval2