Validation of sea ice concentration - European sector
Bulletin date: 2025-09-25
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-19:
| 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 |
88979 |
3328 |
81 |
46 |
0 |
0 |
0 |
0 |
| OW |
0 |
136 |
92 |
197 |
35 |
0 |
0 |
0 |
| VODI |
0 |
5 |
11 |
228 |
227 |
6 |
0 |
0 |
| ODI |
0 |
1 |
2 |
36 |
295 |
43 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
196 |
1164 |
212 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
3370 |
1645 |
71 |
|
...date precedes bulletin
|
Date: 2025-09-21:
| 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 |
89269 |
2951 |
69 |
38 |
0 |
0 |
0 |
0 |
| OW |
0 |
203 |
76 |
160 |
35 |
0 |
0 |
0 |
| VODI |
0 |
11 |
45 |
239 |
172 |
30 |
0 |
0 |
| ODI |
0 |
0 |
0 |
92 |
246 |
30 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
314 |
749 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
2096 |
3488 |
85 |
|
...date precedes bulletin
|
Date: 2025-09-23:
| 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 |
88747 |
3665 |
58 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
174 |
119 |
164 |
6 |
0 |
0 |
0 |
| VODI |
0 |
4 |
10 |
273 |
94 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
50 |
246 |
27 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
358 |
341 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
31 |
1895 |
3903 |
224 |
|
...date precedes bulletin
|
Date: 2025-09-25:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-09-27:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-09-29:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-01:
| 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 |
87931 |
4021 |
115 |
78 |
0 |
0 |
0 |
0 |
| OW |
1 |
108 |
40 |
218 |
33 |
0 |
0 |
0 |
| VODI |
0 |
11 |
20 |
153 |
175 |
0 |
0 |
0 |
| ODI |
0 |
3 |
1 |
55 |
133 |
58 |
0 |
0 |
| CDI |
0 |
1 |
1 |
13 |
188 |
436 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
36 |
1985 |
4425 |
177 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87932 |
3900 |
73 |
37 |
0 |
0 |
0 |
0 |
| OW |
0 |
205 |
78 |
242 |
64 |
0 |
0 |
0 |
| VODI |
0 |
32 |
24 |
170 |
191 |
17 |
0 |
0 |
| ODI |
0 |
7 |
1 |
51 |
144 |
80 |
0 |
0 |
| CDI |
0 |
0 |
1 |
17 |
137 |
510 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
29 |
1872 |
4424 |
177 |
|
Date: 2025-10-03:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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