Validation of sea ice concentration - European sector
Reference date: 2025-10-23
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
95133 |
4633 |
177 |
214 |
32 |
0 |
0 |
0 |
| OW |
0 |
26 |
45 |
208 |
236 |
11 |
0 |
0 |
| VODI |
0 |
1 |
7 |
159 |
176 |
162 |
0 |
0 |
| ODI |
0 |
0 |
0 |
25 |
197 |
150 |
10 |
0 |
| CDI |
0 |
0 |
0 |
0 |
154 |
696 |
183 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2801 |
3571 |
80 |
|
|
Date: 2025-10-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
94590 |
4680 |
154 |
218 |
24 |
0 |
0 |
0 |
| OW |
0 |
23 |
30 |
208 |
307 |
12 |
0 |
0 |
| VODI |
0 |
7 |
6 |
101 |
296 |
112 |
0 |
0 |
| ODI |
0 |
0 |
0 |
28 |
203 |
222 |
4 |
0 |
| CDI |
0 |
0 |
0 |
9 |
140 |
1708 |
271 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
72 |
3142 |
2493 |
24 |
|
|
Date: 2025-10-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
95054 |
4168 |
126 |
123 |
6 |
0 |
0 |
0 |
| OW |
0 |
50 |
64 |
174 |
208 |
1 |
0 |
0 |
| VODI |
0 |
9 |
21 |
154 |
346 |
73 |
0 |
0 |
| ODI |
0 |
0 |
0 |
60 |
298 |
161 |
5 |
0 |
| CDI |
0 |
0 |
0 |
4 |
223 |
1876 |
312 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
36 |
2783 |
2588 |
164 |
|
|
Date: 2025-10-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
93792 |
5192 |
126 |
160 |
18 |
0 |
0 |
0 |
| OW |
0 |
60 |
55 |
172 |
140 |
0 |
0 |
0 |
| VODI |
0 |
9 |
18 |
139 |
305 |
48 |
3 |
0 |
| ODI |
0 |
0 |
1 |
23 |
414 |
172 |
16 |
0 |
| CDI |
0 |
0 |
0 |
0 |
203 |
840 |
448 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
25 |
2328 |
4380 |
0 |
|
|
Date: 2025-10-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
94372 |
4479 |
117 |
119 |
8 |
0 |
0 |
0 |
| OW |
1 |
38 |
54 |
188 |
103 |
2 |
0 |
0 |
| VODI |
0 |
11 |
21 |
129 |
237 |
69 |
2 |
0 |
| ODI |
0 |
0 |
0 |
22 |
245 |
184 |
16 |
0 |
| CDI |
0 |
0 |
0 |
0 |
101 |
725 |
229 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
28 |
1642 |
5460 |
485 |
|
|
Date: 2025-10-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
93699 |
4919 |
136 |
100 |
36 |
2 |
0 |
0 |
| OW |
0 |
56 |
42 |
147 |
106 |
14 |
0 |
0 |
| VODI |
0 |
5 |
34 |
115 |
169 |
104 |
0 |
0 |
| ODI |
0 |
0 |
2 |
30 |
261 |
148 |
50 |
0 |
| CDI |
0 |
0 |
0 |
6 |
138 |
604 |
285 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
812 |
6555 |
498 |
|
|
Date: 2025-10-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
93994 |
4667 |
63 |
50 |
19 |
1 |
0 |
0 |
| OW |
0 |
154 |
66 |
51 |
35 |
9 |
0 |
0 |
| VODI |
0 |
44 |
75 |
175 |
85 |
44 |
4 |
0 |
| ODI |
0 |
0 |
12 |
110 |
195 |
85 |
30 |
0 |
| CDI |
0 |
0 |
0 |
3 |
294 |
421 |
170 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
49 |
1457 |
6485 |
240 |
|
|
Date: 2025-10-31:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
93418 |
5451 |
43 |
30 |
7 |
0 |
0 |
0 |
| OW |
0 |
302 |
53 |
36 |
8 |
1 |
0 |
0 |
| VODI |
0 |
77 |
85 |
126 |
42 |
13 |
1 |
0 |
| ODI |
0 |
7 |
16 |
108 |
176 |
87 |
6 |
0 |
| CDI |
0 |
0 |
1 |
17 |
199 |
583 |
142 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
1011 |
6734 |
295 |
|
|
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