Validation of sea ice concentration - Asian sector
Reference date: 2025-05-08
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
18 |
0 |
0 |
0 |
0 |
| OW |
0 |
45 |
14 |
18 |
2 |
0 |
0 |
0 |
| VODI |
0 |
35 |
8 |
64 |
69 |
2 |
0 |
6 |
| ODI |
0 |
3 |
19 |
249 |
374 |
50 |
19 |
18 |
| CDI |
0 |
0 |
0 |
55 |
979 |
1521 |
431 |
45 |
| VCDI |
0 |
0 |
0 |
0 |
30 |
1886 |
10749 |
15062 |
|
|
Date: 2025-05-04:
| 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 |
405 |
21 |
18 |
0 |
0 |
0 |
0 |
| OW |
0 |
75 |
17 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
86 |
33 |
83 |
55 |
11 |
0 |
0 |
| ODI |
0 |
44 |
47 |
246 |
725 |
283 |
13 |
8 |
| CDI |
0 |
0 |
1 |
30 |
605 |
2467 |
531 |
45 |
| VCDI |
0 |
0 |
0 |
0 |
50 |
2153 |
9124 |
14900 |
|
|
Date: 2025-05-06:
| 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 |
510 |
19 |
19 |
0 |
0 |
0 |
0 |
| OW |
0 |
57 |
11 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
91 |
24 |
81 |
39 |
2 |
0 |
0 |
| ODI |
0 |
85 |
62 |
359 |
1067 |
112 |
25 |
0 |
| CDI |
0 |
0 |
0 |
36 |
832 |
2932 |
817 |
27 |
| VCDI |
0 |
0 |
0 |
0 |
20 |
874 |
8901 |
15070 |
|
|
Date: 2025-05-08:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25 |
478 |
18 |
21 |
0 |
0 |
0 |
0 |
| OW |
0 |
37 |
5 |
31 |
0 |
0 |
0 |
0 |
| VODI |
0 |
84 |
10 |
145 |
87 |
2 |
14 |
0 |
| ODI |
0 |
122 |
59 |
493 |
1058 |
105 |
42 |
0 |
| CDI |
0 |
0 |
0 |
63 |
1152 |
2701 |
757 |
21 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
962 |
7948 |
15639 |
|
|
Date: 2025-05-10:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
27 |
432 |
19 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
31 |
2 |
37 |
0 |
1 |
0 |
0 |
| VODI |
0 |
101 |
47 |
231 |
52 |
10 |
38 |
0 |
| ODI |
0 |
196 |
156 |
702 |
842 |
98 |
55 |
0 |
| CDI |
0 |
0 |
0 |
66 |
967 |
3115 |
756 |
28 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
550 |
8306 |
15196 |
|
|
Date: 2025-05-12:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
30 |
421 |
32 |
25 |
0 |
0 |
0 |
0 |
| OW |
0 |
45 |
11 |
45 |
5 |
1 |
2 |
0 |
| VODI |
0 |
147 |
69 |
230 |
60 |
15 |
38 |
0 |
| ODI |
0 |
178 |
108 |
739 |
1095 |
243 |
74 |
3 |
| CDI |
0 |
0 |
0 |
50 |
621 |
2709 |
1449 |
56 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
538 |
7892 |
15142 |
|
|
Date: 2025-05-14:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7 |
519 |
35 |
35 |
0 |
0 |
0 |
0 |
| OW |
0 |
55 |
6 |
55 |
0 |
0 |
0 |
0 |
| VODI |
0 |
152 |
80 |
283 |
85 |
4 |
24 |
0 |
| ODI |
0 |
198 |
123 |
767 |
1197 |
278 |
79 |
4 |
| CDI |
0 |
0 |
1 |
51 |
520 |
3181 |
1052 |
73 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
1257 |
13271 |
8680 |
|
|
Date: 2025-05-16:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14 |
643 |
26 |
35 |
0 |
0 |
0 |
0 |
| OW |
0 |
63 |
18 |
56 |
0 |
0 |
0 |
0 |
| VODI |
0 |
237 |
70 |
288 |
42 |
4 |
9 |
0 |
| ODI |
0 |
289 |
179 |
915 |
1098 |
149 |
52 |
7 |
| CDI |
0 |
2 |
4 |
69 |
763 |
3317 |
831 |
68 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
778 |
13085 |
8963 |
|
|
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