Validation of sea ice concentration - Asian sector
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 |
8178 |
7488 |
278 |
199 |
5 |
0 |
0 |
0 |
| OW |
0 |
685 |
170 |
425 |
55 |
1 |
0 |
0 |
| VODI |
0 |
40 |
118 |
1019 |
557 |
61 |
0 |
0 |
| ODI |
0 |
0 |
0 |
343 |
5264 |
5799 |
41 |
0 |
| CDI |
0 |
0 |
0 |
0 |
143 |
1158 |
42 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
9 |
1 |
0 |
|
|
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 |
8921 |
6933 |
280 |
239 |
8 |
0 |
0 |
0 |
| OW |
11 |
695 |
186 |
400 |
100 |
0 |
0 |
0 |
| VODI |
0 |
41 |
125 |
965 |
890 |
5 |
0 |
0 |
| ODI |
0 |
0 |
0 |
247 |
6642 |
3648 |
46 |
0 |
| CDI |
0 |
0 |
0 |
1 |
213 |
1416 |
34 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
28 |
4 |
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 |
9443 |
6744 |
302 |
282 |
25 |
0 |
0 |
0 |
| OW |
4 |
671 |
161 |
406 |
119 |
0 |
0 |
0 |
| VODI |
0 |
20 |
72 |
920 |
943 |
20 |
0 |
0 |
| ODI |
0 |
0 |
0 |
192 |
5836 |
2574 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
559 |
2555 |
18 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
198 |
1 |
0 |
|
|
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 |
10753 |
5659 |
311 |
305 |
19 |
3 |
0 |
0 |
| OW |
3 |
602 |
171 |
479 |
92 |
18 |
0 |
0 |
| VODI |
0 |
13 |
48 |
879 |
895 |
36 |
0 |
0 |
| ODI |
0 |
0 |
0 |
193 |
5036 |
2504 |
15 |
0 |
| CDI |
0 |
0 |
0 |
1 |
1201 |
2498 |
80 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
33 |
233 |
0 |
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 |
10899 |
5692 |
304 |
274 |
32 |
3 |
0 |
0 |
| OW |
0 |
639 |
154 |
449 |
88 |
12 |
0 |
0 |
| VODI |
0 |
28 |
77 |
882 |
827 |
43 |
0 |
0 |
| ODI |
0 |
0 |
0 |
313 |
5545 |
2787 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
677 |
2218 |
32 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
88 |
1 |
0 |
|
|
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 |
11055 |
5710 |
308 |
296 |
11 |
0 |
0 |
0 |
| OW |
0 |
556 |
171 |
464 |
81 |
1 |
0 |
0 |
| VODI |
0 |
17 |
78 |
1003 |
784 |
13 |
0 |
0 |
| ODI |
0 |
0 |
1 |
448 |
5537 |
2802 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
479 |
2228 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
32 |
0 |
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 |
11213 |
5842 |
282 |
237 |
19 |
0 |
0 |
0 |
| OW |
0 |
509 |
173 |
425 |
84 |
8 |
0 |
0 |
| VODI |
0 |
21 |
79 |
850 |
688 |
60 |
0 |
0 |
| ODI |
0 |
0 |
2 |
384 |
5319 |
3176 |
7 |
0 |
| CDI |
0 |
0 |
0 |
2 |
332 |
2291 |
65 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
12 |
0 |
0 |
|
|
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 |
11407 |
5891 |
276 |
216 |
9 |
0 |
0 |
0 |
| OW |
0 |
535 |
173 |
387 |
86 |
2 |
0 |
0 |
| VODI |
0 |
42 |
116 |
1008 |
562 |
36 |
0 |
0 |
| ODI |
0 |
0 |
0 |
453 |
5378 |
3501 |
9 |
0 |
| CDI |
0 |
0 |
0 |
0 |
262 |
1701 |
23 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
5 |
2 |
0 |
|
|
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