Validation of sea ice concentration - American sector
Reference date: 2025-07-10
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-07-04:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2892 |
6492 |
467 |
352 |
30 |
0 |
0 |
0 |
| OW |
0 |
1256 |
235 |
863 |
349 |
10 |
0 |
0 |
| VODI |
0 |
224 |
79 |
390 |
1066 |
414 |
21 |
0 |
| ODI |
0 |
36 |
39 |
175 |
1279 |
1551 |
102 |
0 |
| CDI |
0 |
1 |
4 |
44 |
6099 |
13974 |
344 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
71 |
2339 |
4650 |
1 |
|
|
Date: 2025-07-06:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2941 |
7767 |
380 |
505 |
69 |
2 |
0 |
0 |
| OW |
5 |
748 |
156 |
533 |
256 |
6 |
0 |
0 |
| VODI |
0 |
165 |
81 |
580 |
1447 |
242 |
20 |
0 |
| ODI |
0 |
9 |
24 |
165 |
1890 |
1058 |
64 |
0 |
| CDI |
0 |
1 |
3 |
28 |
5657 |
14865 |
426 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
1907 |
3835 |
0 |
|
|
Date: 2025-07-08:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3832 |
7578 |
240 |
324 |
155 |
3 |
0 |
0 |
| OW |
0 |
679 |
162 |
441 |
222 |
17 |
0 |
0 |
| VODI |
0 |
96 |
123 |
660 |
1829 |
237 |
15 |
0 |
| ODI |
0 |
0 |
1 |
67 |
2852 |
1190 |
38 |
0 |
| CDI |
0 |
0 |
0 |
5 |
3895 |
16444 |
585 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
1637 |
2517 |
0 |
|
|
Date: 2025-07-10:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6250 |
5696 |
201 |
326 |
57 |
2 |
0 |
0 |
| OW |
2 |
556 |
165 |
459 |
207 |
7 |
2 |
0 |
| VODI |
0 |
69 |
75 |
579 |
1920 |
559 |
4 |
0 |
| ODI |
0 |
0 |
1 |
22 |
2612 |
1897 |
17 |
0 |
| CDI |
0 |
0 |
0 |
12 |
5217 |
14629 |
1804 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
407 |
2092 |
2 |
|
|
Date: 2025-07-12:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6768 |
5457 |
216 |
436 |
83 |
5 |
0 |
0 |
| OW |
0 |
484 |
141 |
537 |
163 |
8 |
6 |
0 |
| VODI |
0 |
34 |
42 |
429 |
1841 |
692 |
166 |
0 |
| ODI |
0 |
0 |
2 |
13 |
1786 |
3003 |
489 |
0 |
| CDI |
0 |
0 |
0 |
5 |
2005 |
16370 |
3954 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
232 |
481 |
0 |
|
|
Date: 2025-07-14:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6986 |
5713 |
238 |
372 |
34 |
0 |
0 |
0 |
| OW |
0 |
517 |
165 |
614 |
172 |
10 |
0 |
0 |
| VODI |
0 |
27 |
23 |
482 |
1995 |
316 |
2 |
0 |
| ODI |
0 |
1 |
0 |
17 |
3233 |
2771 |
51 |
0 |
| CDI |
0 |
0 |
0 |
12 |
3932 |
14591 |
2882 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
183 |
507 |
0 |
|
|
Date: 2025-07-16:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7610 |
5341 |
210 |
351 |
18 |
0 |
0 |
0 |
| OW |
0 |
520 |
170 |
628 |
190 |
1 |
0 |
0 |
| VODI |
0 |
36 |
43 |
809 |
2490 |
77 |
0 |
0 |
| ODI |
0 |
0 |
0 |
32 |
5411 |
1587 |
11 |
0 |
| CDI |
0 |
0 |
2 |
16 |
3513 |
13395 |
2266 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
399 |
718 |
0 |
|
|
Date: 2025-07-18:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8246 |
5067 |
201 |
277 |
21 |
0 |
0 |
0 |
| OW |
2 |
584 |
189 |
614 |
89 |
7 |
0 |
0 |
| VODI |
0 |
30 |
18 |
801 |
3100 |
204 |
1 |
0 |
| ODI |
0 |
2 |
1 |
10 |
4034 |
2471 |
12 |
0 |
| CDI |
0 |
0 |
0 |
5 |
2060 |
14818 |
2211 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
210 |
564 |
0 |
|
|
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