Validation of sea ice concentration - Asian sector
Bulletin date: 2024-04-11
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-04-05:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
52 |
10 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
1 |
20 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
25 |
10 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
20 |
39 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
16 |
173 |
125 |
5 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
137 |
2618 |
29807 |
|
...date precedes bulletin
|
Date: 2024-04-07:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
58 |
10 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
2 |
0 |
17 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
2 |
27 |
3 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
32 |
21 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
21 |
64 |
166 |
18 |
9 |
| VCDI |
0 |
0 |
0 |
0 |
42 |
502 |
8109 |
23983 |
|
...date precedes bulletin
|
Date: 2024-04-09:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
64 |
6 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
9 |
8 |
14 |
0 |
0 |
0 |
0 |
| VODI |
0 |
3 |
4 |
46 |
3 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
7 |
18 |
0 |
1 |
1 |
| CDI |
0 |
0 |
0 |
0 |
61 |
151 |
87 |
11 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
266 |
8030 |
24304 |
|
...date precedes bulletin
|
Date: 2024-04-11:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
57 |
7 |
20 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
1 |
30 |
2 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
24 |
14 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
11 |
1 |
3 |
3 |
| CDI |
0 |
0 |
0 |
0 |
20 |
119 |
29 |
36 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
180 |
4007 |
28531 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
56 |
6 |
18 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
2 |
33 |
2 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
23 |
13 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
9 |
2 |
3 |
5 |
| CDI |
0 |
0 |
0 |
0 |
23 |
106 |
35 |
40 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
192 |
4001 |
28525 |
|
Date: 2024-04-13:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
62 |
7 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
6 |
5 |
23 |
0 |
0 |
0 |
0 |
| VODI |
0 |
1 |
1 |
18 |
14 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
6 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
53 |
144 |
30 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
37 |
605 |
8344 |
23726 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
60 |
7 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
8 |
5 |
23 |
0 |
0 |
0 |
0 |
| VODI |
0 |
1 |
1 |
18 |
14 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
2 |
3 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
58 |
147 |
29 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
36 |
599 |
8345 |
23726 |
|
Date: 2024-04-15:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
76 |
21 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
7 |
11 |
0 |
0 |
0 |
0 |
| VODI |
0 |
4 |
2 |
15 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
1 |
4 |
0 |
| CDI |
0 |
0 |
0 |
0 |
2 |
260 |
15 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
309 |
6867 |
25488 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
73 |
14 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
14 |
14 |
15 |
0 |
0 |
0 |
0 |
| VODI |
0 |
3 |
2 |
12 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
0 |
1 |
4 |
0 |
| CDI |
0 |
0 |
0 |
0 |
2 |
239 |
27 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
330 |
6855 |
25488 |
|
Date: 2024-04-17:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
71 |
10 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
23 |
6 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
15 |
0 |
7 |
1 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
7 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
45 |
229 |
14 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
112 |
2822 |
29668 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
69 |
8 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
32 |
8 |
15 |
0 |
0 |
0 |
0 |
| VODI |
0 |
8 |
0 |
4 |
2 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
5 |
3 |
0 |
2 |
| CDI |
0 |
0 |
0 |
0 |
36 |
226 |
35 |
27 |
| VCDI |
0 |
0 |
0 |
0 |
54 |
113 |
2801 |
29642 |
|
Date: 2024-04-19:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
41 |
63 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
6 |
36 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
4 |
0 |
0 |
3 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
14 |
0 |
2 |
0 |
| CDI |
0 |
0 |
0 |
0 |
61 |
50 |
201 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
41 |
158 |
4916 |
27497 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
32 |
47 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
15 |
56 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
2 |
1 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
33 |
46 |
182 |
17 |
| VCDI |
0 |
0 |
0 |
0 |
83 |
161 |
4936 |
27483 |
|
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