Validation of sea ice concentration - Asian sector
Reference date: 2025-09-25
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11256 |
6676 |
176 |
154 |
0 |
0 |
0 |
0 |
| OW |
0 |
241 |
131 |
401 |
72 |
2 |
0 |
0 |
| VODI |
0 |
61 |
75 |
593 |
309 |
72 |
0 |
0 |
| ODI |
0 |
0 |
4 |
182 |
627 |
463 |
17 |
0 |
| CDI |
0 |
0 |
0 |
4 |
385 |
3310 |
1083 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
3167 |
2613 |
0 |
|
|
Date: 2025-09-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9922 |
7994 |
206 |
216 |
1 |
0 |
0 |
0 |
| OW |
0 |
155 |
76 |
409 |
100 |
5 |
0 |
0 |
| VODI |
0 |
46 |
59 |
469 |
356 |
108 |
0 |
0 |
| ODI |
0 |
0 |
1 |
64 |
544 |
550 |
77 |
0 |
| CDI |
0 |
0 |
0 |
1 |
137 |
1624 |
1873 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
1094 |
5992 |
0 |
|
|
Date: 2025-09-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11043 |
6363 |
233 |
404 |
46 |
0 |
0 |
0 |
| OW |
0 |
64 |
51 |
281 |
170 |
7 |
0 |
0 |
| VODI |
0 |
22 |
13 |
256 |
514 |
135 |
5 |
0 |
| ODI |
0 |
2 |
13 |
44 |
384 |
445 |
55 |
0 |
| CDI |
0 |
0 |
0 |
1 |
48 |
1104 |
554 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
336 |
7341 |
2146 |
|
|
Date: 2025-09-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10740 |
6245 |
241 |
294 |
37 |
0 |
0 |
0 |
| OW |
0 |
53 |
40 |
283 |
297 |
20 |
0 |
0 |
| VODI |
0 |
36 |
19 |
110 |
438 |
128 |
0 |
0 |
| ODI |
0 |
4 |
10 |
39 |
418 |
312 |
23 |
0 |
| CDI |
0 |
0 |
0 |
0 |
171 |
700 |
280 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
801 |
7889 |
2436 |
|
|
Date: 2025-09-27:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11012 |
5751 |
148 |
204 |
37 |
0 |
0 |
0 |
| OW |
0 |
97 |
47 |
194 |
256 |
51 |
0 |
0 |
| VODI |
0 |
63 |
40 |
119 |
293 |
268 |
4 |
0 |
| ODI |
0 |
4 |
9 |
47 |
236 |
354 |
158 |
0 |
| CDI |
0 |
0 |
0 |
0 |
113 |
596 |
339 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
1028 |
8197 |
2412 |
|
|
Date: 2025-09-29:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10333 |
6543 |
120 |
95 |
5 |
0 |
0 |
0 |
| OW |
0 |
200 |
95 |
210 |
99 |
0 |
0 |
0 |
| VODI |
0 |
104 |
79 |
247 |
278 |
113 |
0 |
0 |
| ODI |
0 |
1 |
10 |
105 |
332 |
253 |
68 |
0 |
| CDI |
0 |
0 |
0 |
10 |
197 |
621 |
231 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
63 |
1817 |
9471 |
380 |
|
|
Date: 2025-10-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9671 |
7407 |
109 |
69 |
1 |
0 |
0 |
0 |
| OW |
0 |
212 |
114 |
153 |
48 |
0 |
0 |
0 |
| VODI |
0 |
116 |
97 |
284 |
195 |
66 |
0 |
0 |
| ODI |
0 |
7 |
18 |
148 |
336 |
229 |
12 |
0 |
| CDI |
0 |
1 |
2 |
35 |
286 |
693 |
125 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
36 |
2276 |
8430 |
904 |
|
|
Date: 2025-10-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9138 |
7659 |
190 |
136 |
7 |
0 |
0 |
0 |
| OW |
0 |
178 |
85 |
201 |
46 |
0 |
0 |
0 |
| VODI |
0 |
89 |
79 |
287 |
221 |
33 |
0 |
0 |
| ODI |
0 |
1 |
7 |
124 |
374 |
299 |
34 |
0 |
| CDI |
0 |
0 |
2 |
17 |
127 |
833 |
251 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
16 |
1352 |
7197 |
3091 |
|
|
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