Validation of sea ice concentration - Full domain
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 |
122928 |
14829 |
657 |
565 |
56 |
0 |
0 |
0 |
| OW |
83 |
5755 |
869 |
1529 |
193 |
2 |
0 |
0 |
| VODI |
0 |
79 |
204 |
2478 |
1585 |
65 |
13 |
0 |
| ODI |
0 |
0 |
1 |
862 |
12124 |
6472 |
75 |
0 |
| CDI |
0 |
0 |
0 |
2 |
937 |
11708 |
1227 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
1205 |
497 |
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 |
123719 |
14402 |
618 |
513 |
42 |
0 |
0 |
0 |
| OW |
184 |
5654 |
795 |
1496 |
166 |
3 |
0 |
0 |
| VODI |
0 |
68 |
183 |
2749 |
1295 |
86 |
5 |
0 |
| ODI |
0 |
0 |
3 |
1225 |
13581 |
5512 |
49 |
0 |
| CDI |
0 |
0 |
0 |
6 |
1074 |
10333 |
1664 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
887 |
687 |
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 |
123931 |
14568 |
629 |
636 |
53 |
0 |
0 |
0 |
| OW |
139 |
5809 |
854 |
1353 |
213 |
5 |
0 |
0 |
| VODI |
0 |
50 |
164 |
2692 |
1277 |
53 |
15 |
0 |
| ODI |
0 |
0 |
1 |
1337 |
12749 |
5028 |
41 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1361 |
10118 |
1927 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
1188 |
805 |
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 |
124034 |
14741 |
680 |
659 |
57 |
0 |
0 |
0 |
| OW |
169 |
5723 |
759 |
1403 |
253 |
1 |
0 |
0 |
| VODI |
0 |
73 |
190 |
2800 |
1245 |
25 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1479 |
11493 |
4729 |
40 |
0 |
| CDI |
0 |
0 |
0 |
5 |
1349 |
10512 |
2899 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
630 |
1050 |
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 |
123985 |
14917 |
655 |
630 |
37 |
0 |
0 |
0 |
| OW |
194 |
5721 |
757 |
1368 |
318 |
10 |
0 |
0 |
| VODI |
0 |
77 |
265 |
2872 |
1287 |
72 |
0 |
0 |
| ODI |
0 |
0 |
1 |
1424 |
10186 |
4066 |
19 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1308 |
13298 |
2109 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
4 |
662 |
756 |
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 |
124002 |
15047 |
635 |
598 |
29 |
0 |
0 |
0 |
| OW |
212 |
5673 |
798 |
1316 |
248 |
18 |
0 |
0 |
| VODI |
0 |
79 |
197 |
2776 |
1186 |
65 |
6 |
0 |
| ODI |
0 |
0 |
1 |
1498 |
7484 |
2662 |
36 |
0 |
| CDI |
0 |
0 |
0 |
2 |
2800 |
16386 |
1777 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
539 |
932 |
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 |
123985 |
14965 |
673 |
650 |
79 |
4 |
0 |
0 |
| OW |
0 |
5528 |
785 |
1586 |
246 |
17 |
0 |
0 |
| VODI |
0 |
112 |
193 |
2574 |
1140 |
99 |
2 |
0 |
| ODI |
0 |
0 |
6 |
1543 |
4889 |
1596 |
16 |
0 |
| CDI |
0 |
0 |
0 |
25 |
4012 |
15261 |
2306 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
15 |
2735 |
1961 |
0 |
|
|
Date: 2025-09-12:
| Best estimate |
|
|
...observations not yet available
|
|
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