Validation of sea ice concentration - Asian sector
Reference date: 2025-11-27
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
616 |
3549 |
169 |
200 |
44 |
4 |
0 |
0 |
| OW |
0 |
71 |
13 |
81 |
225 |
50 |
0 |
0 |
| VODI |
0 |
65 |
29 |
81 |
99 |
182 |
0 |
0 |
| ODI |
0 |
49 |
24 |
126 |
164 |
293 |
54 |
0 |
| CDI |
0 |
34 |
8 |
30 |
109 |
700 |
220 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
1498 |
10154 |
13125 |
|
|
Date: 2025-11-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
539 |
3376 |
165 |
191 |
6 |
0 |
0 |
0 |
| OW |
0 |
92 |
43 |
137 |
99 |
1 |
0 |
0 |
| VODI |
0 |
81 |
36 |
94 |
153 |
178 |
0 |
0 |
| ODI |
0 |
60 |
27 |
125 |
263 |
201 |
14 |
0 |
| CDI |
0 |
10 |
2 |
18 |
111 |
801 |
277 |
5 |
| VCDI |
0 |
4 |
1 |
1 |
7 |
827 |
9464 |
14673 |
|
|
Date: 2025-11-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
159 |
3161 |
204 |
351 |
27 |
0 |
0 |
0 |
| OW |
0 |
82 |
63 |
163 |
127 |
7 |
0 |
0 |
| VODI |
0 |
71 |
46 |
122 |
159 |
74 |
0 |
0 |
| ODI |
0 |
70 |
33 |
147 |
203 |
246 |
25 |
0 |
| CDI |
0 |
8 |
1 |
13 |
78 |
641 |
358 |
3 |
| VCDI |
0 |
2 |
1 |
1 |
10 |
930 |
11110 |
13386 |
|
|
Date: 2025-11-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
47 |
3109 |
156 |
254 |
81 |
0 |
0 |
0 |
| OW |
0 |
99 |
38 |
131 |
133 |
7 |
0 |
0 |
| VODI |
0 |
95 |
41 |
119 |
144 |
72 |
0 |
0 |
| ODI |
0 |
72 |
38 |
130 |
277 |
286 |
39 |
0 |
| CDI |
0 |
15 |
4 |
37 |
117 |
537 |
436 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
813 |
10479 |
14259 |
|
|
Date: 2025-11-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
243 |
3481 |
57 |
22 |
0 |
0 |
0 |
0 |
| OW |
0 |
174 |
64 |
84 |
12 |
0 |
0 |
0 |
| VODI |
0 |
121 |
36 |
121 |
49 |
2 |
0 |
0 |
| ODI |
0 |
175 |
41 |
195 |
173 |
20 |
0 |
0 |
| CDI |
0 |
67 |
54 |
162 |
269 |
507 |
64 |
5 |
| VCDI |
0 |
2 |
0 |
4 |
63 |
2112 |
8669 |
15034 |
|
|
Date: 2025-12-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
400 |
3168 |
101 |
99 |
45 |
0 |
0 |
0 |
| OW |
0 |
90 |
43 |
54 |
30 |
0 |
0 |
0 |
| VODI |
0 |
97 |
46 |
115 |
25 |
0 |
0 |
0 |
| ODI |
0 |
430 |
63 |
172 |
152 |
11 |
1 |
0 |
| CDI |
0 |
86 |
31 |
87 |
262 |
498 |
42 |
2 |
| VCDI |
0 |
0 |
1 |
11 |
46 |
2704 |
10762 |
12408 |
|
|
Date: 2025-12-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
64 |
2896 |
157 |
234 |
73 |
1 |
0 |
0 |
| OW |
0 |
44 |
23 |
65 |
72 |
4 |
0 |
0 |
| VODI |
0 |
48 |
17 |
109 |
152 |
23 |
0 |
0 |
| ODI |
0 |
74 |
34 |
229 |
473 |
157 |
0 |
0 |
| CDI |
0 |
6 |
6 |
43 |
184 |
668 |
158 |
0 |
| VCDI |
0 |
1 |
0 |
2 |
5 |
1640 |
10178 |
14242 |
|
|
Date: 2025-12-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8 |
2353 |
152 |
312 |
64 |
0 |
0 |
0 |
| OW |
0 |
14 |
22 |
102 |
207 |
1 |
0 |
0 |
| VODI |
0 |
16 |
10 |
92 |
148 |
6 |
0 |
0 |
| ODI |
0 |
9 |
8 |
99 |
468 |
71 |
0 |
0 |
| CDI |
0 |
1 |
5 |
20 |
561 |
603 |
243 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
51 |
1676 |
12888 |
11870 |
|
|
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