Validation of sea ice concentration - Asian sector
Bulletin date: 2025-08-26
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-26:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11373 |
4642 |
10 |
50 |
6 |
2 |
0 |
0 |
| OW |
7 |
408 |
16 |
62 |
17 |
3 |
0 |
0 |
| VODI |
8 |
738 |
29 |
292 |
121 |
63 |
9 |
0 |
| ODI |
0 |
704 |
61 |
962 |
1338 |
650 |
34 |
0 |
| CDI |
0 |
133 |
8 |
636 |
3084 |
2773 |
40 |
0 |
| VCDI |
0 |
0 |
0 |
45 |
1517 |
2377 |
28 |
0 |
|
Date: 2025-08-28:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11575 |
5711 |
40 |
166 |
18 |
7 |
0 |
0 |
| OW |
0 |
208 |
15 |
88 |
18 |
10 |
0 |
0 |
| VODI |
0 |
349 |
29 |
293 |
145 |
62 |
8 |
0 |
| ODI |
0 |
376 |
42 |
795 |
1295 |
554 |
6 |
0 |
| CDI |
0 |
120 |
22 |
669 |
3131 |
2188 |
24 |
0 |
| VCDI |
0 |
9 |
3 |
98 |
1887 |
2266 |
19 |
0 |
|
Date: 2025-08-30:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11737 |
6025 |
66 |
312 |
55 |
1 |
0 |
0 |
| OW |
0 |
125 |
10 |
91 |
29 |
12 |
1 |
0 |
| VODI |
0 |
218 |
23 |
217 |
179 |
65 |
12 |
0 |
| ODI |
0 |
285 |
37 |
721 |
1209 |
521 |
12 |
0 |
| CDI |
0 |
125 |
21 |
678 |
2995 |
2370 |
31 |
0 |
| VCDI |
0 |
13 |
4 |
138 |
1767 |
2108 |
33 |
0 |
|
Date: 2025-09-01:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11596 |
6136 |
72 |
500 |
128 |
8 |
0 |
0 |
| OW |
0 |
89 |
8 |
82 |
39 |
8 |
0 |
0 |
| VODI |
0 |
146 |
12 |
211 |
170 |
80 |
0 |
0 |
| ODI |
0 |
273 |
31 |
660 |
1276 |
533 |
0 |
0 |
| CDI |
0 |
146 |
19 |
687 |
3141 |
2088 |
0 |
0 |
| VCDI |
0 |
29 |
10 |
261 |
2133 |
1674 |
0 |
0 |
|
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