Validation of sea ice concentration - Asian sector
Reference date: 2025-11-20
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-14:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1305 |
4150 |
109 |
95 |
2 |
0 |
0 |
0 |
| OW |
0 |
96 |
51 |
213 |
186 |
2 |
0 |
0 |
| VODI |
0 |
60 |
21 |
71 |
289 |
182 |
2 |
0 |
| ODI |
0 |
35 |
44 |
65 |
180 |
205 |
7 |
0 |
| CDI |
0 |
7 |
13 |
32 |
175 |
395 |
133 |
19 |
| VCDI |
0 |
1 |
1 |
5 |
67 |
2132 |
7341 |
14391 |
|
|
Date: 2025-11-16:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2257 |
3189 |
84 |
67 |
1 |
0 |
0 |
0 |
| OW |
0 |
111 |
29 |
114 |
106 |
0 |
0 |
0 |
| VODI |
0 |
103 |
17 |
42 |
292 |
100 |
0 |
0 |
| ODI |
0 |
90 |
39 |
112 |
104 |
111 |
0 |
0 |
| CDI |
0 |
11 |
11 |
99 |
374 |
316 |
8 |
0 |
| VCDI |
0 |
0 |
1 |
9 |
272 |
4028 |
9352 |
10633 |
|
|
Date: 2025-11-18:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1426 |
3601 |
113 |
156 |
68 |
0 |
0 |
0 |
| OW |
7 |
132 |
16 |
57 |
134 |
8 |
0 |
0 |
| VODI |
3 |
108 |
21 |
32 |
166 |
77 |
0 |
0 |
| ODI |
0 |
94 |
39 |
88 |
124 |
249 |
36 |
0 |
| CDI |
0 |
10 |
9 |
71 |
385 |
549 |
67 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
108 |
3667 |
10961 |
9489 |
|
|
Date: 2025-11-20:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
851 |
3691 |
110 |
127 |
24 |
3 |
0 |
0 |
| OW |
0 |
85 |
24 |
92 |
229 |
47 |
0 |
0 |
| VODI |
0 |
93 |
28 |
63 |
66 |
145 |
0 |
0 |
| ODI |
0 |
85 |
38 |
75 |
92 |
322 |
25 |
0 |
| CDI |
0 |
29 |
11 |
65 |
179 |
638 |
173 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
2047 |
10172 |
12440 |
|
|
Date: 2025-11-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
583 |
3413 |
173 |
214 |
23 |
1 |
0 |
0 |
| OW |
0 |
91 |
18 |
73 |
184 |
20 |
0 |
0 |
| VODI |
0 |
58 |
39 |
79 |
131 |
232 |
0 |
0 |
| ODI |
0 |
60 |
30 |
170 |
195 |
265 |
22 |
0 |
| CDI |
0 |
15 |
4 |
13 |
141 |
760 |
200 |
7 |
| VCDI |
0 |
0 |
0 |
1 |
5 |
1126 |
11042 |
12694 |
|
|
Date: 2025-11-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
294 |
3247 |
197 |
286 |
23 |
0 |
0 |
0 |
| OW |
0 |
92 |
65 |
170 |
107 |
3 |
0 |
0 |
| VODI |
0 |
64 |
29 |
134 |
194 |
118 |
0 |
0 |
| ODI |
0 |
65 |
28 |
121 |
263 |
225 |
29 |
0 |
| CDI |
0 |
7 |
1 |
13 |
91 |
738 |
330 |
3 |
| VCDI |
0 |
4 |
0 |
1 |
9 |
838 |
12292 |
12001 |
|
|
Date: 2025-11-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
47 |
3126 |
198 |
326 |
57 |
0 |
0 |
0 |
| OW |
0 |
70 |
33 |
152 |
141 |
6 |
0 |
0 |
| VODI |
0 |
101 |
38 |
118 |
156 |
71 |
0 |
0 |
| ODI |
0 |
67 |
32 |
120 |
231 |
256 |
57 |
0 |
| CDI |
0 |
12 |
3 |
20 |
144 |
537 |
392 |
0 |
| VCDI |
0 |
3 |
1 |
5 |
35 |
965 |
11144 |
13418 |
|
|
Date: 2025-11-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
94 |
3234 |
143 |
150 |
29 |
0 |
0 |
0 |
| OW |
0 |
165 |
59 |
115 |
97 |
1 |
0 |
0 |
| VODI |
0 |
127 |
39 |
90 |
127 |
35 |
0 |
0 |
| ODI |
0 |
85 |
51 |
137 |
327 |
154 |
13 |
0 |
| CDI |
0 |
10 |
7 |
66 |
206 |
476 |
340 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
1284 |
9812 |
14603 |
|
|
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