Validation of sea ice concentration - Full domain
Reference date: 2025-08-21
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
116185 |
18752 |
802 |
627 |
39 |
0 |
0 |
0 |
| OW |
0 |
2968 |
920 |
1502 |
162 |
5 |
0 |
0 |
| VODI |
0 |
143 |
286 |
4297 |
1973 |
142 |
1 |
0 |
| ODI |
0 |
0 |
0 |
612 |
13414 |
10228 |
427 |
10 |
| CDI |
0 |
0 |
0 |
1 |
402 |
6423 |
2926 |
117 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
533 |
2917 |
186 |
|
|
Date: 2025-08-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
117410 |
17946 |
752 |
684 |
49 |
0 |
0 |
0 |
| OW |
11 |
3379 |
1091 |
1714 |
180 |
7 |
0 |
0 |
| VODI |
0 |
113 |
258 |
3798 |
2571 |
102 |
0 |
0 |
| ODI |
0 |
0 |
0 |
479 |
14386 |
8764 |
489 |
0 |
| CDI |
0 |
0 |
0 |
4 |
440 |
5182 |
3580 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
255 |
3357 |
0 |
|
|
Date: 2025-08-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
118540 |
17217 |
712 |
712 |
55 |
0 |
0 |
0 |
| OW |
11 |
3847 |
1199 |
1853 |
209 |
2 |
0 |
0 |
| VODI |
0 |
84 |
177 |
3249 |
2280 |
100 |
9 |
0 |
| ODI |
0 |
0 |
4 |
531 |
13634 |
6978 |
339 |
0 |
| CDI |
0 |
0 |
0 |
6 |
724 |
7643 |
3090 |
34 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
1326 |
2373 |
48 |
|
|
Date: 2025-08-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
120359 |
15907 |
706 |
640 |
37 |
2 |
0 |
0 |
| OW |
9 |
4780 |
1106 |
1481 |
160 |
20 |
0 |
0 |
| VODI |
0 |
117 |
305 |
3150 |
1829 |
130 |
1 |
0 |
| ODI |
0 |
0 |
6 |
669 |
12007 |
6920 |
388 |
0 |
| CDI |
0 |
0 |
0 |
2 |
1464 |
7111 |
4414 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
38 |
827 |
2418 |
0 |
|
|
Date: 2025-08-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
120268 |
16226 |
668 |
657 |
46 |
3 |
0 |
0 |
| OW |
0 |
5292 |
1142 |
1455 |
163 |
13 |
0 |
0 |
| VODI |
0 |
88 |
250 |
3205 |
1868 |
89 |
0 |
0 |
| ODI |
0 |
1 |
4 |
737 |
12498 |
7340 |
271 |
0 |
| CDI |
0 |
0 |
0 |
0 |
922 |
7727 |
4146 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
638 |
1263 |
4 |
|
|
Date: 2025-08-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
122186 |
14709 |
612 |
675 |
33 |
0 |
0 |
0 |
| OW |
0 |
5694 |
1025 |
1465 |
151 |
1 |
0 |
0 |
| VODI |
0 |
47 |
211 |
3161 |
1701 |
31 |
0 |
0 |
| ODI |
0 |
0 |
1 |
901 |
12670 |
6702 |
140 |
0 |
| CDI |
0 |
0 |
0 |
3 |
850 |
9665 |
2575 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
578 |
1212 |
0 |
|
|
Date: 2025-08-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
122584 |
14664 |
630 |
639 |
63 |
0 |
0 |
0 |
| OW |
0 |
5764 |
941 |
1553 |
154 |
12 |
0 |
0 |
| VODI |
0 |
58 |
174 |
2735 |
1672 |
74 |
4 |
0 |
| ODI |
0 |
0 |
4 |
809 |
12202 |
6986 |
148 |
0 |
| CDI |
0 |
0 |
0 |
7 |
813 |
10342 |
2157 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
1029 |
779 |
0 |
|
|
Date: 2025-08-29:
| Best estimate |
|
|
...observations not yet available
|
|
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