Validation of sea ice concentration - Asian sector
Reference date: 2025-07-24
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
2489 |
6526 |
505 |
698 |
55 |
0 |
0 |
0 |
| OW |
0 |
711 |
304 |
859 |
423 |
1 |
0 |
0 |
| VODI |
0 |
122 |
69 |
581 |
1617 |
92 |
0 |
0 |
| ODI |
0 |
8 |
16 |
211 |
3095 |
1480 |
44 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1634 |
9595 |
943 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
1 |
0 |
|
|
Date: 2025-07-20:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2411 |
7564 |
566 |
715 |
83 |
2 |
0 |
0 |
| OW |
0 |
749 |
307 |
883 |
549 |
0 |
0 |
0 |
| VODI |
0 |
66 |
57 |
419 |
2249 |
121 |
0 |
0 |
| ODI |
0 |
0 |
0 |
129 |
2821 |
1693 |
12 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1407 |
8993 |
262 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
22 |
1 |
0 |
|
|
Date: 2025-07-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2623 |
8106 |
651 |
848 |
101 |
0 |
0 |
0 |
| OW |
0 |
664 |
270 |
975 |
439 |
0 |
0 |
0 |
| VODI |
0 |
14 |
24 |
624 |
2280 |
38 |
0 |
0 |
| ODI |
0 |
0 |
0 |
71 |
3231 |
1415 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1307 |
8282 |
100 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
18 |
0 |
0 |
|
|
Date: 2025-07-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2927 |
9030 |
602 |
874 |
149 |
0 |
0 |
0 |
| OW |
0 |
517 |
192 |
843 |
566 |
21 |
0 |
0 |
| VODI |
0 |
6 |
16 |
377 |
2466 |
347 |
0 |
0 |
| ODI |
0 |
0 |
0 |
40 |
2695 |
2157 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1459 |
6793 |
1 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3 |
0 |
0 |
|
|
Date: 2025-07-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3581 |
9586 |
635 |
930 |
126 |
0 |
0 |
0 |
| OW |
0 |
393 |
164 |
637 |
512 |
5 |
0 |
0 |
| VODI |
0 |
4 |
17 |
487 |
2668 |
409 |
0 |
0 |
| ODI |
0 |
0 |
1 |
44 |
2663 |
3078 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
622 |
5519 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
Date: 2025-07-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3633 |
10130 |
653 |
851 |
80 |
0 |
0 |
0 |
| OW |
0 |
296 |
130 |
591 |
390 |
3 |
0 |
0 |
| VODI |
0 |
2 |
11 |
564 |
2241 |
469 |
0 |
0 |
| ODI |
0 |
0 |
0 |
25 |
3200 |
4563 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
281 |
3962 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
3 |
0 |
0 |
|
|
Date: 2025-07-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4630 |
9579 |
541 |
674 |
86 |
0 |
0 |
0 |
| OW |
0 |
260 |
137 |
547 |
251 |
13 |
0 |
0 |
| VODI |
0 |
7 |
34 |
655 |
1165 |
239 |
0 |
0 |
| ODI |
0 |
0 |
0 |
76 |
3256 |
6806 |
11 |
0 |
| CDI |
0 |
0 |
0 |
0 |
120 |
2957 |
31 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
3 |
0 |
0 |
|
|
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 |
4939 |
9362 |
542 |
625 |
86 |
0 |
0 |
0 |
| OW |
0 |
259 |
151 |
524 |
198 |
7 |
0 |
0 |
| VODI |
0 |
9 |
44 |
747 |
1278 |
253 |
1 |
0 |
| ODI |
0 |
0 |
0 |
56 |
3017 |
6888 |
127 |
0 |
| CDI |
0 |
0 |
0 |
0 |
142 |
2499 |
319 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
5 |
0 |
0 |
|
|
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