Validation of sea ice concentration - American 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 |
14600 |
4100 |
219 |
216 |
45 |
0 |
0 |
0 |
| OW |
83 |
5190 |
644 |
996 |
89 |
0 |
0 |
0 |
| VODI |
0 |
15 |
49 |
1252 |
844 |
26 |
0 |
0 |
| ODI |
0 |
0 |
1 |
296 |
4199 |
1827 |
22 |
0 |
| CDI |
0 |
0 |
0 |
0 |
513 |
8434 |
898 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
994 |
287 |
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 |
14746 |
4196 |
196 |
160 |
23 |
0 |
0 |
0 |
| OW |
184 |
5066 |
555 |
979 |
58 |
3 |
0 |
0 |
| VODI |
0 |
21 |
51 |
1370 |
553 |
33 |
0 |
0 |
| ODI |
0 |
0 |
0 |
462 |
4818 |
1174 |
23 |
0 |
| CDI |
0 |
0 |
0 |
1 |
746 |
8019 |
1150 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
759 |
491 |
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 |
14998 |
4273 |
156 |
146 |
13 |
0 |
0 |
0 |
| OW |
139 |
5303 |
627 |
773 |
60 |
0 |
0 |
0 |
| VODI |
0 |
26 |
54 |
1308 |
505 |
24 |
1 |
0 |
| ODI |
0 |
0 |
0 |
428 |
4948 |
891 |
18 |
0 |
| CDI |
0 |
0 |
0 |
0 |
905 |
7593 |
1017 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
1115 |
515 |
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 |
15116 |
4343 |
156 |
157 |
9 |
0 |
0 |
0 |
| OW |
169 |
5259 |
557 |
817 |
85 |
1 |
0 |
0 |
| VODI |
0 |
39 |
79 |
1394 |
418 |
10 |
0 |
0 |
| ODI |
0 |
0 |
0 |
681 |
4600 |
842 |
27 |
0 |
| CDI |
0 |
0 |
0 |
5 |
787 |
7198 |
1875 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
542 |
670 |
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 |
15082 |
4477 |
168 |
194 |
21 |
0 |
0 |
0 |
| OW |
194 |
5288 |
562 |
768 |
92 |
1 |
0 |
0 |
| VODI |
0 |
53 |
154 |
1437 |
414 |
12 |
0 |
0 |
| ODI |
0 |
0 |
1 |
743 |
4213 |
921 |
6 |
0 |
| CDI |
0 |
0 |
0 |
2 |
510 |
8669 |
984 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
583 |
290 |
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 |
14967 |
4793 |
200 |
201 |
13 |
0 |
0 |
0 |
| OW |
212 |
5259 |
605 |
711 |
59 |
2 |
0 |
0 |
| VODI |
0 |
50 |
106 |
1350 |
319 |
8 |
0 |
0 |
| ODI |
0 |
0 |
1 |
895 |
2989 |
498 |
13 |
0 |
| CDI |
0 |
0 |
0 |
1 |
1331 |
9427 |
1054 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
389 |
387 |
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 |
14914 |
4920 |
230 |
227 |
23 |
4 |
0 |
0 |
| OW |
0 |
5100 |
599 |
976 |
61 |
3 |
0 |
0 |
| VODI |
0 |
63 |
57 |
1230 |
357 |
15 |
1 |
0 |
| ODI |
0 |
0 |
6 |
1061 |
2265 |
358 |
11 |
0 |
| CDI |
0 |
0 |
0 |
18 |
2093 |
6226 |
1669 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
2054 |
1297 |
0 |
|
|
Date: 2025-09-12:
| Best estimate |
|
|
...observations not yet available
|
|
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