Validation of sea ice concentration - Asian sector
Bulletin date: 2025-04-22
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-04-22:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
163 |
16 |
37 |
1 |
0 |
0 |
0 |
| OW |
0 |
6 |
2 |
17 |
0 |
0 |
0 |
0 |
| VODI |
0 |
11 |
5 |
43 |
8 |
1 |
7 |
0 |
| ODI |
0 |
3 |
4 |
51 |
38 |
42 |
70 |
27 |
| CDI |
0 |
0 |
0 |
80 |
126 |
296 |
724 |
547 |
| VCDI |
0 |
0 |
0 |
11 |
94 |
1014 |
8204 |
20635 |
|
Date: 2025-04-24:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
220 |
8 |
28 |
3 |
0 |
0 |
0 |
| OW |
0 |
8 |
7 |
14 |
1 |
0 |
0 |
0 |
| VODI |
0 |
21 |
6 |
29 |
7 |
0 |
9 |
0 |
| ODI |
0 |
12 |
3 |
42 |
53 |
43 |
106 |
77 |
| CDI |
0 |
6 |
5 |
60 |
172 |
258 |
720 |
517 |
| VCDI |
0 |
1 |
2 |
29 |
250 |
1051 |
8452 |
20063 |
|
Date: 2025-04-26:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
273 |
4 |
32 |
7 |
0 |
0 |
0 |
| OW |
0 |
20 |
2 |
6 |
5 |
0 |
0 |
0 |
| VODI |
0 |
20 |
1 |
14 |
24 |
11 |
22 |
5 |
| ODI |
0 |
33 |
1 |
36 |
77 |
99 |
212 |
35 |
| CDI |
0 |
36 |
4 |
66 |
182 |
215 |
863 |
168 |
| VCDI |
0 |
8 |
3 |
53 |
640 |
1182 |
11057 |
16867 |
|
Date: 2025-04-28:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
230 |
8 |
32 |
9 |
0 |
0 |
0 |
| OW |
0 |
29 |
3 |
6 |
7 |
0 |
0 |
0 |
| VODI |
0 |
36 |
1 |
14 |
31 |
22 |
47 |
1 |
| ODI |
0 |
23 |
1 |
26 |
111 |
124 |
259 |
23 |
| CDI |
0 |
37 |
3 |
64 |
190 |
274 |
1092 |
185 |
| VCDI |
0 |
6 |
1 |
49 |
578 |
1184 |
11794 |
15783 |
|
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