Validation of sea ice concentration - Asian sector
Reference date: 2025-04-24
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-04-18:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
246 |
20 |
28 |
0 |
0 |
0 |
0 |
| OW |
0 |
41 |
6 |
16 |
2 |
0 |
0 |
0 |
| VODI |
0 |
46 |
40 |
74 |
22 |
3 |
0 |
0 |
| ODI |
0 |
0 |
3 |
77 |
183 |
98 |
14 |
0 |
| CDI |
0 |
0 |
0 |
2 |
81 |
462 |
314 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
454 |
10951 |
18881 |
|
|
Date: 2025-04-20:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
138 |
32 |
29 |
0 |
0 |
0 |
0 |
| OW |
0 |
29 |
20 |
27 |
0 |
0 |
0 |
0 |
| VODI |
0 |
11 |
14 |
126 |
38 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
52 |
162 |
89 |
4 |
0 |
| CDI |
0 |
0 |
0 |
0 |
68 |
619 |
143 |
8 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
372 |
7847 |
22251 |
|
|
Date: 2025-04-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
115 |
48 |
36 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
13 |
39 |
0 |
0 |
0 |
0 |
| VODI |
0 |
4 |
16 |
101 |
58 |
4 |
0 |
0 |
| ODI |
0 |
0 |
0 |
42 |
157 |
82 |
19 |
0 |
| CDI |
0 |
0 |
0 |
1 |
36 |
678 |
208 |
26 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
548 |
8622 |
21211 |
|
|
Date: 2025-04-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
162 |
47 |
11 |
0 |
0 |
0 |
0 |
| OW |
0 |
33 |
13 |
25 |
1 |
0 |
0 |
0 |
| VODI |
0 |
16 |
26 |
88 |
29 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
55 |
169 |
66 |
4 |
0 |
| CDI |
0 |
0 |
0 |
7 |
165 |
815 |
342 |
22 |
| VCDI |
0 |
0 |
0 |
0 |
78 |
452 |
8777 |
20677 |
|
|
Date: 2025-04-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
235 |
27 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
57 |
6 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
40 |
34 |
53 |
14 |
0 |
0 |
0 |
| ODI |
0 |
0 |
6 |
98 |
154 |
24 |
1 |
0 |
| CDI |
0 |
0 |
0 |
17 |
661 |
887 |
265 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
59 |
547 |
11557 |
17315 |
|
|
Date: 2025-04-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
239 |
24 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
21 |
20 |
0 |
0 |
0 |
0 |
| VODI |
0 |
18 |
24 |
66 |
15 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
77 |
267 |
24 |
3 |
0 |
| CDI |
0 |
0 |
0 |
2 |
591 |
1069 |
342 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
22 |
447 |
12693 |
16060 |
|
|
Date: 2025-04-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
270 |
14 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
40 |
18 |
18 |
0 |
0 |
0 |
0 |
| VODI |
0 |
18 |
25 |
57 |
9 |
2 |
0 |
0 |
| ODI |
0 |
0 |
2 |
89 |
361 |
47 |
29 |
0 |
| CDI |
0 |
0 |
0 |
24 |
603 |
1147 |
593 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
67 |
1228 |
11855 |
15552 |
|
|
Date: 2025-05-02:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
286 |
25 |
19 |
0 |
0 |
0 |
0 |
| OW |
0 |
44 |
14 |
17 |
2 |
0 |
0 |
0 |
| VODI |
0 |
36 |
9 |
64 |
69 |
2 |
0 |
6 |
| ODI |
0 |
3 |
18 |
250 |
379 |
50 |
19 |
18 |
| CDI |
0 |
0 |
0 |
54 |
975 |
1522 |
428 |
46 |
| VCDI |
0 |
0 |
0 |
0 |
29 |
1885 |
10752 |
15061 |
|
|
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