Validation of sea ice concentration - European sector
Reference date: 2025-09-04
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
96921 |
4838 |
160 |
135 |
2 |
0 |
0 |
0 |
| OW |
0 |
30 |
53 |
145 |
17 |
0 |
0 |
0 |
| VODI |
0 |
22 |
40 |
218 |
178 |
3 |
13 |
0 |
| ODI |
0 |
0 |
0 |
112 |
2548 |
1140 |
44 |
0 |
| CDI |
0 |
0 |
0 |
2 |
163 |
1576 |
306 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
207 |
208 |
0 |
|
|
Date: 2025-08-31:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97548 |
4277 |
154 |
136 |
0 |
0 |
0 |
0 |
| OW |
0 |
77 |
49 |
100 |
2 |
0 |
0 |
0 |
| VODI |
0 |
15 |
38 |
301 |
131 |
22 |
5 |
0 |
| ODI |
0 |
0 |
3 |
232 |
2870 |
1057 |
26 |
0 |
| CDI |
0 |
0 |
0 |
5 |
120 |
1088 |
508 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
122 |
196 |
0 |
|
|
Date: 2025-09-02:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97656 |
4234 |
162 |
179 |
2 |
0 |
0 |
0 |
| OW |
0 |
48 |
38 |
104 |
6 |
0 |
0 |
0 |
| VODI |
0 |
5 |
39 |
368 |
148 |
16 |
14 |
0 |
| ODI |
0 |
0 |
0 |
303 |
1884 |
1539 |
23 |
0 |
| CDI |
0 |
0 |
0 |
0 |
34 |
1022 |
910 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
57 |
290 |
0 |
|
|
Date: 2025-09-04:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97654 |
4270 |
181 |
163 |
5 |
0 |
0 |
0 |
| OW |
0 |
42 |
40 |
107 |
11 |
0 |
0 |
0 |
| VODI |
0 |
8 |
37 |
397 |
215 |
6 |
0 |
0 |
| ODI |
0 |
0 |
0 |
224 |
1750 |
974 |
13 |
0 |
| CDI |
0 |
0 |
0 |
0 |
89 |
1434 |
1024 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
60 |
378 |
0 |
|
|
Date: 2025-09-06:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97642 |
4469 |
152 |
134 |
8 |
0 |
0 |
0 |
| OW |
0 |
44 |
30 |
102 |
19 |
0 |
0 |
0 |
| VODI |
0 |
9 |
32 |
401 |
252 |
15 |
0 |
0 |
| ODI |
0 |
0 |
0 |
111 |
1611 |
609 |
12 |
0 |
| CDI |
0 |
0 |
0 |
2 |
185 |
1587 |
1130 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
61 |
462 |
0 |
|
|
Date: 2025-09-08:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97706 |
4404 |
138 |
131 |
7 |
0 |
0 |
0 |
| OW |
0 |
40 |
29 |
103 |
26 |
0 |
0 |
0 |
| VODI |
0 |
25 |
41 |
391 |
250 |
25 |
6 |
0 |
| ODI |
0 |
0 |
0 |
94 |
1279 |
597 |
21 |
0 |
| CDI |
0 |
0 |
0 |
0 |
213 |
2188 |
702 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
119 |
547 |
0 |
|
|
Date: 2025-09-10:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97774 |
4283 |
145 |
121 |
10 |
0 |
0 |
0 |
| OW |
0 |
37 |
44 |
134 |
16 |
0 |
0 |
0 |
| VODI |
0 |
13 |
29 |
419 |
206 |
16 |
1 |
0 |
| ODI |
0 |
0 |
0 |
91 |
1010 |
356 |
4 |
0 |
| CDI |
0 |
0 |
0 |
3 |
450 |
2438 |
568 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
208 |
707 |
0 |
|
|
Date: 2025-09-12:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97665 |
4207 |
148 |
169 |
0 |
0 |
0 |
0 |
| OW |
0 |
36 |
25 |
171 |
31 |
0 |
0 |
0 |
| VODI |
0 |
6 |
9 |
320 |
273 |
25 |
0 |
0 |
| ODI |
0 |
0 |
0 |
52 |
463 |
341 |
4 |
0 |
| CDI |
0 |
0 |
0 |
0 |
185 |
2538 |
921 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
247 |
1247 |
0 |
|
|
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