Validation of sea ice concentration - American sector
Reference date: 2025-08-07
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10946 |
5043 |
296 |
368 |
54 |
0 |
0 |
0 |
| OW |
0 |
543 |
420 |
1203 |
102 |
0 |
0 |
0 |
| VODI |
0 |
61 |
117 |
2306 |
3409 |
448 |
0 |
0 |
| ODI |
0 |
0 |
0 |
187 |
3853 |
4450 |
88 |
0 |
| CDI |
0 |
0 |
0 |
0 |
277 |
6788 |
3863 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
155 |
865 |
0 |
|
|
Date: 2025-08-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10875 |
5324 |
322 |
316 |
23 |
0 |
0 |
0 |
| OW |
0 |
724 |
647 |
1276 |
95 |
0 |
0 |
0 |
| VODI |
0 |
30 |
68 |
2985 |
2362 |
34 |
0 |
0 |
| ODI |
0 |
0 |
1 |
112 |
3831 |
3483 |
113 |
0 |
| CDI |
0 |
0 |
0 |
0 |
193 |
6374 |
5020 |
209 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
52 |
1159 |
214 |
|
|
Date: 2025-08-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11092 |
5131 |
350 |
441 |
26 |
0 |
0 |
0 |
| OW |
0 |
710 |
486 |
1367 |
155 |
0 |
0 |
0 |
| VODI |
0 |
10 |
48 |
2410 |
1987 |
241 |
0 |
0 |
| ODI |
0 |
0 |
0 |
186 |
3257 |
2211 |
199 |
0 |
| CDI |
0 |
0 |
0 |
1 |
824 |
6618 |
4497 |
117 |
| VCDI |
0 |
0 |
0 |
0 |
77 |
560 |
2242 |
599 |
|
|
Date: 2025-08-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11276 |
5127 |
337 |
418 |
36 |
0 |
0 |
0 |
| OW |
0 |
737 |
493 |
1160 |
157 |
2 |
0 |
0 |
| VODI |
0 |
20 |
92 |
2591 |
1623 |
99 |
4 |
0 |
| ODI |
0 |
1 |
1 |
231 |
3731 |
1289 |
316 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1257 |
6259 |
3805 |
259 |
| VCDI |
0 |
0 |
0 |
0 |
76 |
1114 |
2445 |
886 |
|
|
Date: 2025-08-09:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11261 |
5245 |
351 |
412 |
18 |
0 |
0 |
0 |
| OW |
0 |
927 |
521 |
1002 |
90 |
0 |
0 |
0 |
| VODI |
0 |
136 |
230 |
2864 |
1514 |
30 |
0 |
0 |
| ODI |
0 |
0 |
0 |
186 |
3421 |
3241 |
719 |
5 |
| CDI |
0 |
0 |
0 |
0 |
247 |
5248 |
4300 |
76 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
228 |
2616 |
954 |
|
|
Date: 2025-08-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11508 |
5170 |
383 |
311 |
21 |
0 |
0 |
0 |
| OW |
0 |
1230 |
670 |
1354 |
75 |
0 |
0 |
0 |
| VODI |
0 |
43 |
96 |
2886 |
1121 |
40 |
2 |
0 |
| ODI |
0 |
0 |
0 |
120 |
4404 |
3440 |
378 |
0 |
| CDI |
0 |
0 |
0 |
0 |
153 |
5804 |
2577 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
866 |
3149 |
37 |
|
|
Date: 2025-08-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11709 |
5181 |
379 |
368 |
25 |
0 |
0 |
0 |
| OW |
0 |
1870 |
760 |
1020 |
68 |
0 |
0 |
0 |
| VODI |
0 |
68 |
144 |
3011 |
650 |
21 |
1 |
0 |
| ODI |
0 |
0 |
0 |
244 |
5845 |
1730 |
68 |
0 |
| CDI |
0 |
0 |
0 |
0 |
939 |
4483 |
3042 |
57 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
668 |
2968 |
509 |
|
|
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 |
11843 |
5451 |
363 |
247 |
19 |
0 |
0 |
0 |
| OW |
0 |
2277 |
709 |
964 |
43 |
2 |
0 |
0 |
| VODI |
0 |
99 |
161 |
3104 |
843 |
19 |
1 |
0 |
| ODI |
0 |
0 |
0 |
230 |
5298 |
3296 |
375 |
10 |
| CDI |
0 |
0 |
0 |
1 |
232 |
3837 |
2795 |
118 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
452 |
2866 |
185 |
|
|
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