Validation of sea ice concentration - Asian sector
Bulletin date: 2025-04-29
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-04-29:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
285 |
11 |
51 |
4 |
0 |
0 |
0 |
| OW |
0 |
14 |
2 |
19 |
2 |
0 |
0 |
0 |
| VODI |
0 |
45 |
2 |
29 |
30 |
32 |
38 |
2 |
| ODI |
0 |
27 |
2 |
36 |
115 |
157 |
206 |
13 |
| CDI |
0 |
6 |
0 |
33 |
378 |
500 |
895 |
63 |
| VCDI |
0 |
0 |
0 |
4 |
446 |
1480 |
11775 |
15581 |
|
Date: 2025-05-01:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
310 |
9 |
65 |
13 |
1 |
0 |
0 |
| OW |
0 |
24 |
0 |
18 |
20 |
9 |
1 |
0 |
| VODI |
0 |
28 |
0 |
24 |
73 |
61 |
66 |
0 |
| ODI |
0 |
11 |
0 |
49 |
151 |
204 |
203 |
3 |
| CDI |
0 |
1 |
0 |
68 |
411 |
620 |
1009 |
74 |
| VCDI |
0 |
0 |
0 |
116 |
706 |
2175 |
10828 |
14932 |
|
Date: 2025-05-03:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
404 |
7 |
38 |
27 |
9 |
1 |
1 |
| OW |
0 |
40 |
1 |
15 |
38 |
20 |
3 |
5 |
| VODI |
0 |
56 |
4 |
31 |
77 |
87 |
62 |
30 |
| ODI |
0 |
37 |
10 |
68 |
159 |
245 |
204 |
20 |
| CDI |
0 |
16 |
13 |
164 |
396 |
874 |
756 |
62 |
| VCDI |
0 |
1 |
5 |
147 |
853 |
3598 |
8639 |
15060 |
|
Date: 2025-05-05:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
547 |
7 |
41 |
57 |
33 |
6 |
8 |
| OW |
0 |
47 |
1 |
20 |
78 |
55 |
17 |
8 |
| VODI |
0 |
72 |
3 |
62 |
108 |
113 |
81 |
20 |
| ODI |
0 |
56 |
6 |
68 |
209 |
266 |
236 |
20 |
| CDI |
0 |
53 |
11 |
101 |
453 |
894 |
871 |
130 |
| VCDI |
0 |
29 |
5 |
168 |
993 |
3182 |
8130 |
15018 |
|
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