Validation of sea ice concentration - European sector
Reference date: 2025-09-25
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
94054 |
7205 |
160 |
128 |
4 |
0 |
0 |
0 |
| OW |
0 |
12 |
18 |
142 |
83 |
0 |
0 |
0 |
| VODI |
0 |
1 |
6 |
51 |
254 |
43 |
0 |
0 |
| ODI |
0 |
0 |
0 |
9 |
197 |
155 |
12 |
0 |
| CDI |
0 |
0 |
0 |
1 |
77 |
779 |
268 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2196 |
2870 |
360 |
|
|
Date: 2025-09-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
93454 |
7737 |
135 |
96 |
0 |
0 |
0 |
0 |
| OW |
0 |
27 |
25 |
124 |
62 |
0 |
0 |
0 |
| VODI |
0 |
7 |
15 |
91 |
208 |
29 |
3 |
0 |
| ODI |
0 |
0 |
4 |
25 |
218 |
127 |
6 |
0 |
| CDI |
0 |
0 |
0 |
3 |
120 |
771 |
352 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
651 |
4058 |
736 |
|
|
Date: 2025-09-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97094 |
4232 |
59 |
37 |
0 |
0 |
0 |
0 |
| OW |
0 |
84 |
55 |
69 |
19 |
0 |
0 |
0 |
| VODI |
0 |
38 |
37 |
145 |
122 |
14 |
0 |
0 |
| ODI |
0 |
4 |
10 |
71 |
213 |
69 |
1 |
0 |
| CDI |
0 |
0 |
0 |
15 |
227 |
646 |
224 |
12 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
471 |
3910 |
1203 |
|
|
Date: 2025-09-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
98107 |
3220 |
49 |
50 |
1 |
0 |
0 |
0 |
| OW |
0 |
108 |
37 |
74 |
7 |
0 |
0 |
0 |
| VODI |
0 |
63 |
40 |
143 |
170 |
6 |
0 |
0 |
| ODI |
0 |
5 |
13 |
56 |
219 |
90 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
174 |
735 |
294 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
873 |
4191 |
346 |
|
|
Date: 2025-09-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97243 |
4062 |
65 |
44 |
1 |
0 |
0 |
0 |
| OW |
0 |
144 |
44 |
80 |
11 |
0 |
0 |
0 |
| VODI |
0 |
61 |
53 |
179 |
158 |
4 |
0 |
0 |
| ODI |
0 |
0 |
1 |
37 |
238 |
101 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
168 |
809 |
60 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
1046 |
4303 |
159 |
|
|
Date: 2025-09-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97047 |
4062 |
99 |
118 |
2 |
0 |
0 |
0 |
| OW |
0 |
114 |
37 |
106 |
34 |
0 |
0 |
0 |
| VODI |
0 |
11 |
17 |
144 |
170 |
12 |
0 |
0 |
| ODI |
0 |
0 |
0 |
21 |
181 |
140 |
2 |
0 |
| CDI |
0 |
0 |
0 |
0 |
123 |
710 |
133 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
881 |
4605 |
312 |
|
|
Date: 2025-10-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97024 |
3915 |
76 |
129 |
66 |
9 |
0 |
0 |
| OW |
0 |
80 |
24 |
54 |
41 |
12 |
0 |
0 |
| VODI |
0 |
18 |
27 |
59 |
125 |
39 |
0 |
0 |
| ODI |
0 |
1 |
7 |
19 |
111 |
138 |
6 |
0 |
| CDI |
0 |
0 |
0 |
11 |
60 |
448 |
98 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
745 |
5369 |
372 |
|
|
Date: 2025-10-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97115 |
4107 |
67 |
66 |
17 |
0 |
0 |
0 |
| OW |
0 |
109 |
18 |
38 |
46 |
2 |
0 |
0 |
| VODI |
0 |
44 |
52 |
78 |
68 |
19 |
0 |
0 |
| ODI |
0 |
2 |
11 |
86 |
108 |
88 |
0 |
0 |
| CDI |
0 |
0 |
0 |
15 |
183 |
465 |
37 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
21 |
2854 |
3073 |
293 |
|
|
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