Validation of sea ice concentration - Asian sector
Reference date: 2025-08-28
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10832 |
5659 |
303 |
301 |
31 |
5 |
0 |
0 |
| OW |
0 |
634 |
151 |
464 |
82 |
17 |
0 |
0 |
| VODI |
0 |
27 |
69 |
850 |
874 |
46 |
0 |
0 |
| ODI |
0 |
0 |
0 |
233 |
5155 |
2835 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
849 |
2426 |
72 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
151 |
0 |
0 |
|
|
Date: 2025-08-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10955 |
5734 |
310 |
245 |
25 |
0 |
0 |
0 |
| OW |
0 |
607 |
177 |
465 |
77 |
0 |
0 |
0 |
| VODI |
0 |
22 |
67 |
938 |
838 |
21 |
0 |
0 |
| ODI |
0 |
0 |
0 |
344 |
5843 |
2623 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
612 |
2078 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
50 |
0 |
0 |
|
|
Date: 2025-08-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11137 |
5754 |
303 |
271 |
15 |
0 |
0 |
0 |
| OW |
0 |
523 |
171 |
441 |
88 |
4 |
0 |
0 |
| VODI |
0 |
15 |
63 |
956 |
709 |
56 |
0 |
0 |
| ODI |
0 |
0 |
0 |
330 |
5157 |
3371 |
14 |
0 |
| CDI |
0 |
0 |
0 |
3 |
314 |
2284 |
76 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
24 |
0 |
0 |
|
|
Date: 2025-08-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11314 |
5886 |
276 |
222 |
13 |
0 |
0 |
0 |
| OW |
0 |
528 |
176 |
398 |
90 |
3 |
0 |
0 |
| VODI |
0 |
34 |
86 |
945 |
581 |
37 |
0 |
0 |
| ODI |
0 |
0 |
1 |
517 |
5634 |
2905 |
6 |
0 |
| CDI |
0 |
0 |
0 |
3 |
357 |
2019 |
36 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
11 |
1 |
0 |
|
|
Date: 2025-08-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11468 |
5921 |
266 |
211 |
15 |
0 |
0 |
0 |
| OW |
0 |
522 |
177 |
396 |
96 |
0 |
0 |
0 |
| VODI |
0 |
33 |
119 |
1045 |
633 |
2 |
0 |
0 |
| ODI |
0 |
0 |
1 |
468 |
5432 |
3708 |
16 |
0 |
| CDI |
0 |
0 |
0 |
0 |
178 |
1319 |
46 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
5 |
3 |
0 |
|
|
Date: 2025-09-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11322 |
5999 |
279 |
255 |
29 |
0 |
0 |
0 |
| OW |
0 |
488 |
174 |
454 |
136 |
0 |
0 |
0 |
| VODI |
0 |
24 |
105 |
1042 |
637 |
13 |
0 |
0 |
| ODI |
0 |
0 |
2 |
593 |
5958 |
2942 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
304 |
1316 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
7 |
0 |
0 |
|
|
Date: 2025-09-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11258 |
6135 |
321 |
367 |
65 |
0 |
0 |
0 |
| OW |
0 |
419 |
187 |
464 |
150 |
0 |
0 |
0 |
| VODI |
0 |
26 |
83 |
969 |
607 |
10 |
0 |
0 |
| ODI |
0 |
0 |
0 |
612 |
5517 |
2616 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
500 |
1758 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
16 |
0 |
0 |
|
|
Date: 2025-09-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11275 |
6040 |
337 |
307 |
19 |
0 |
0 |
0 |
| OW |
0 |
451 |
164 |
470 |
197 |
1 |
0 |
0 |
| VODI |
0 |
22 |
80 |
1040 |
598 |
20 |
0 |
0 |
| ODI |
0 |
0 |
0 |
547 |
4937 |
2915 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
482 |
2157 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
21 |
0 |
0 |
|
|
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