Validation of sea ice concentration - Asian sector
Bulletin date: 2025-04-01
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-04-01:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
397 |
3 |
14 |
2 |
0 |
0 |
0 |
| OW |
0 |
32 |
2 |
6 |
3 |
0 |
0 |
0 |
| VODI |
0 |
62 |
3 |
31 |
3 |
0 |
0 |
0 |
| ODI |
0 |
101 |
7 |
81 |
82 |
55 |
31 |
0 |
| CDI |
0 |
39 |
5 |
99 |
115 |
280 |
263 |
225 |
| VCDI |
0 |
10 |
1 |
43 |
224 |
1151 |
7447 |
21466 |
|
Date: 2025-04-03:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
405 |
2 |
31 |
6 |
0 |
0 |
0 |
| OW |
0 |
35 |
1 |
8 |
1 |
0 |
0 |
0 |
| VODI |
0 |
51 |
0 |
17 |
7 |
0 |
0 |
0 |
| ODI |
0 |
42 |
0 |
31 |
73 |
48 |
17 |
3 |
| CDI |
0 |
73 |
5 |
79 |
134 |
207 |
306 |
169 |
| VCDI |
0 |
15 |
4 |
51 |
155 |
525 |
7162 |
22620 |
|
Date: 2025-04-05:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
286 |
7 |
15 |
2 |
0 |
0 |
0 |
| OW |
0 |
25 |
1 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
36 |
2 |
8 |
3 |
0 |
0 |
0 |
| ODI |
0 |
35 |
1 |
15 |
9 |
16 |
10 |
11 |
| CDI |
0 |
43 |
1 |
34 |
79 |
176 |
188 |
205 |
| VCDI |
0 |
155 |
23 |
183 |
235 |
662 |
5685 |
24129 |
|
Date: 2025-04-07:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
260 |
3 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
16 |
0 |
3 |
1 |
0 |
0 |
0 |
| VODI |
0 |
23 |
1 |
8 |
5 |
0 |
0 |
0 |
| ODI |
0 |
29 |
0 |
11 |
3 |
6 |
19 |
3 |
| CDI |
0 |
22 |
0 |
42 |
50 |
75 |
159 |
147 |
| VCDI |
0 |
103 |
12 |
156 |
209 |
611 |
5391 |
24889 |
|
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