Validation of sea ice concentration - European sector
Reference date: 2025-11-27
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
90112 |
7168 |
80 |
56 |
0 |
0 |
0 |
0 |
| OW |
9 |
174 |
61 |
79 |
24 |
0 |
0 |
0 |
| VODI |
0 |
128 |
69 |
171 |
103 |
10 |
0 |
0 |
| ODI |
0 |
16 |
28 |
146 |
310 |
124 |
4 |
0 |
| CDI |
0 |
0 |
0 |
20 |
277 |
768 |
422 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
1359 |
7293 |
57 |
|
|
Date: 2025-11-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
89960 |
7294 |
95 |
88 |
2 |
0 |
0 |
0 |
| OW |
4 |
177 |
53 |
75 |
25 |
1 |
0 |
0 |
| VODI |
0 |
146 |
61 |
163 |
123 |
12 |
0 |
0 |
| ODI |
0 |
22 |
24 |
131 |
258 |
189 |
4 |
0 |
| CDI |
0 |
0 |
0 |
10 |
109 |
727 |
416 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
951 |
7755 |
202 |
|
|
Date: 2025-11-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
89150 |
8058 |
127 |
123 |
8 |
0 |
0 |
0 |
| OW |
3 |
147 |
50 |
95 |
17 |
1 |
0 |
0 |
| VODI |
2 |
117 |
63 |
179 |
101 |
11 |
0 |
0 |
| ODI |
0 |
28 |
37 |
161 |
279 |
156 |
1 |
0 |
| CDI |
0 |
2 |
1 |
24 |
121 |
532 |
359 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
1962 |
6738 |
415 |
|
|
Date: 2025-11-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
88511 |
8593 |
169 |
113 |
15 |
0 |
0 |
0 |
| OW |
1 |
130 |
43 |
103 |
46 |
1 |
0 |
0 |
| VODI |
2 |
123 |
60 |
151 |
88 |
32 |
0 |
0 |
| ODI |
0 |
58 |
53 |
168 |
272 |
117 |
0 |
0 |
| CDI |
0 |
0 |
1 |
24 |
192 |
695 |
338 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
23 |
1796 |
6970 |
191 |
|
|
Date: 2025-11-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
88615 |
8076 |
206 |
247 |
57 |
0 |
0 |
0 |
| OW |
10 |
140 |
53 |
109 |
66 |
2 |
0 |
0 |
| VODI |
0 |
184 |
47 |
142 |
111 |
10 |
0 |
0 |
| ODI |
0 |
105 |
67 |
240 |
362 |
95 |
1 |
0 |
| CDI |
0 |
0 |
0 |
34 |
341 |
593 |
359 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
2247 |
6514 |
2 |
|
|
Date: 2025-12-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87519 |
9162 |
140 |
173 |
66 |
0 |
0 |
0 |
| OW |
10 |
250 |
44 |
107 |
46 |
6 |
0 |
0 |
| VODI |
2 |
273 |
101 |
158 |
129 |
15 |
0 |
0 |
| ODI |
0 |
22 |
42 |
221 |
370 |
162 |
42 |
0 |
| CDI |
0 |
0 |
0 |
7 |
211 |
872 |
421 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
19 |
2130 |
6356 |
3 |
|
|
Date: 2025-12-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
87731 |
8712 |
213 |
319 |
24 |
2 |
0 |
0 |
| OW |
15 |
204 |
72 |
140 |
79 |
6 |
0 |
0 |
| VODI |
2 |
160 |
85 |
228 |
178 |
40 |
5 |
0 |
| ODI |
0 |
50 |
35 |
200 |
390 |
212 |
89 |
0 |
| CDI |
0 |
11 |
7 |
50 |
105 |
608 |
560 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
4 |
1567 |
6966 |
9 |
|
|
Date: 2025-12-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
86311 |
9640 |
233 |
258 |
52 |
0 |
0 |
0 |
| OW |
16 |
130 |
43 |
203 |
138 |
5 |
0 |
0 |
| VODI |
5 |
124 |
97 |
239 |
220 |
52 |
2 |
0 |
| ODI |
0 |
43 |
42 |
297 |
423 |
215 |
30 |
0 |
| CDI |
0 |
0 |
0 |
14 |
176 |
537 |
403 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
959 |
7608 |
553 |
|
|
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