Validation of sea ice concentration - Asian sector
Reference date: 2025-10-30
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6985 |
2686 |
260 |
489 |
200 |
10 |
0 |
0 |
| OW |
12 |
176 |
59 |
118 |
463 |
147 |
0 |
0 |
| VODI |
5 |
185 |
120 |
375 |
266 |
535 |
63 |
0 |
| ODI |
0 |
14 |
32 |
730 |
998 |
492 |
88 |
0 |
| CDI |
0 |
0 |
3 |
72 |
754 |
1216 |
345 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
54 |
4008 |
7817 |
2304 |
|
|
Date: 2025-10-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6374 |
2982 |
284 |
316 |
9 |
0 |
0 |
0 |
| OW |
6 |
172 |
76 |
420 |
158 |
9 |
0 |
0 |
| VODI |
1 |
134 |
73 |
290 |
302 |
61 |
4 |
0 |
| ODI |
0 |
65 |
43 |
437 |
822 |
266 |
21 |
0 |
| CDI |
0 |
0 |
0 |
103 |
1149 |
955 |
176 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
238 |
4945 |
8535 |
2638 |
|
|
Date: 2025-10-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5636 |
2857 |
140 |
498 |
262 |
3 |
0 |
0 |
| OW |
0 |
97 |
22 |
88 |
464 |
40 |
0 |
0 |
| VODI |
0 |
75 |
53 |
127 |
289 |
223 |
3 |
0 |
| ODI |
0 |
60 |
19 |
187 |
457 |
321 |
12 |
0 |
| CDI |
0 |
0 |
0 |
11 |
749 |
1001 |
341 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
134 |
5019 |
9652 |
3241 |
|
|
Date: 2025-10-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4775 |
3251 |
121 |
103 |
7 |
0 |
0 |
0 |
| OW |
0 |
68 |
27 |
108 |
227 |
158 |
8 |
0 |
| VODI |
0 |
51 |
25 |
63 |
107 |
707 |
54 |
0 |
| ODI |
0 |
22 |
23 |
88 |
94 |
503 |
65 |
0 |
| CDI |
0 |
0 |
0 |
43 |
259 |
593 |
387 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
91 |
4522 |
11645 |
3886 |
|
|
Date: 2025-11-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3800 |
3665 |
84 |
173 |
75 |
2 |
0 |
0 |
| OW |
0 |
71 |
26 |
114 |
151 |
24 |
0 |
0 |
| VODI |
0 |
67 |
23 |
69 |
78 |
223 |
101 |
0 |
| ODI |
0 |
14 |
22 |
120 |
123 |
292 |
400 |
0 |
| CDI |
0 |
0 |
0 |
16 |
124 |
442 |
525 |
2 |
| VCDI |
0 |
0 |
0 |
2 |
16 |
1983 |
12271 |
6983 |
|
|
Date: 2025-11-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5278 |
2329 |
44 |
95 |
15 |
0 |
0 |
0 |
| OW |
2 |
121 |
26 |
49 |
174 |
23 |
0 |
0 |
| VODI |
0 |
96 |
56 |
68 |
147 |
79 |
0 |
0 |
| ODI |
0 |
9 |
12 |
73 |
188 |
122 |
46 |
0 |
| CDI |
0 |
0 |
0 |
6 |
232 |
345 |
528 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
60 |
3053 |
11120 |
7685 |
|
|
Date: 2025-11-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4802 |
2729 |
78 |
90 |
22 |
0 |
0 |
0 |
| OW |
4 |
53 |
25 |
44 |
116 |
18 |
0 |
0 |
| VODI |
1 |
63 |
36 |
95 |
169 |
91 |
2 |
0 |
| ODI |
0 |
3 |
3 |
53 |
115 |
187 |
13 |
0 |
| CDI |
0 |
0 |
0 |
8 |
96 |
431 |
146 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
2831 |
10215 |
9526 |
|
|
Date: 2025-11-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2358 |
4395 |
164 |
311 |
34 |
0 |
0 |
0 |
| OW |
0 |
48 |
14 |
108 |
184 |
18 |
0 |
0 |
| VODI |
0 |
61 |
21 |
66 |
97 |
129 |
2 |
0 |
| ODI |
0 |
37 |
12 |
77 |
97 |
145 |
27 |
0 |
| CDI |
0 |
1 |
1 |
8 |
69 |
352 |
149 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
1279 |
11997 |
9812 |
|
|
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