Validation of sea ice concentration - Asian sector
Bulletin date: 2024-01-18
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-01-12:
| 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 |
42 |
19 |
20 |
0 |
0 |
0 |
0 |
| OW |
0 |
29 |
25 |
60 |
0 |
0 |
0 |
0 |
| VODI |
0 |
2 |
5 |
115 |
3 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
45 |
73 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
98 |
160 |
2 |
24 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
287 |
3579 |
28491 |
|
...date precedes bulletin
|
Date: 2024-01-14:
| 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 |
55 |
10 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
3 |
44 |
33 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
137 |
23 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
28 |
77 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
94 |
111 |
11 |
9 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
286 |
3043 |
29122 |
|
...date precedes bulletin
|
Date: 2024-01-16:
| 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 |
59 |
4 |
18 |
1 |
0 |
0 |
0 |
| OW |
0 |
0 |
1 |
22 |
17 |
0 |
0 |
0 |
| VODI |
0 |
0 |
9 |
156 |
54 |
1 |
0 |
0 |
| ODI |
0 |
4 |
4 |
28 |
65 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
66 |
61 |
7 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
396 |
6462 |
25651 |
|
...date precedes bulletin
|
Date: 2024-01-18:
| 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 |
110 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
11 |
0 |
6 |
8 |
14 |
0 |
0 |
0 |
| VODI |
10 |
0 |
1 |
122 |
57 |
0 |
0 |
0 |
| ODI |
6 |
1 |
0 |
64 |
34 |
1 |
1 |
0 |
| CDI |
9 |
0 |
0 |
24 |
47 |
25 |
11 |
5 |
| VCDI |
4 |
0 |
0 |
27 |
106 |
570 |
3917 |
27905 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
110 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
9 |
0 |
6 |
7 |
16 |
0 |
0 |
0 |
| VODI |
12 |
0 |
1 |
131 |
53 |
0 |
0 |
0 |
| ODI |
6 |
1 |
0 |
60 |
37 |
1 |
1 |
0 |
| CDI |
12 |
0 |
0 |
25 |
48 |
29 |
11 |
4 |
| VCDI |
1 |
0 |
0 |
22 |
104 |
566 |
3917 |
27906 |
|
Date: 2024-01-20:
| 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 |
73 |
34 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
6 |
21 |
3 |
3 |
8 |
0 |
0 |
0 |
| VODI |
4 |
73 |
8 |
33 |
62 |
0 |
0 |
0 |
| ODI |
0 |
92 |
12 |
7 |
5 |
0 |
0 |
0 |
| CDI |
1 |
20 |
25 |
29 |
23 |
32 |
6 |
9 |
| VCDI |
0 |
2 |
7 |
42 |
129 |
769 |
5783 |
25775 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73 |
34 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
6 |
21 |
3 |
2 |
10 |
0 |
0 |
0 |
| VODI |
4 |
81 |
9 |
33 |
58 |
0 |
0 |
0 |
| ODI |
0 |
89 |
11 |
7 |
7 |
1 |
0 |
0 |
| CDI |
1 |
17 |
29 |
33 |
23 |
37 |
7 |
14 |
| VCDI |
0 |
0 |
3 |
39 |
129 |
763 |
5782 |
25770 |
|
Date: 2024-01-22:
| 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 |
103 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
95 |
36 |
12 |
0 |
0 |
0 |
0 |
| VODI |
0 |
22 |
21 |
44 |
42 |
5 |
0 |
0 |
| ODI |
0 |
3 |
5 |
55 |
25 |
14 |
0 |
0 |
| CDI |
0 |
1 |
1 |
19 |
90 |
94 |
28 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
39 |
359 |
6815 |
25159 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
110 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
14 |
15 |
21 |
24 |
4 |
0 |
0 |
| VODI |
0 |
33 |
11 |
22 |
23 |
13 |
0 |
0 |
| ODI |
0 |
52 |
26 |
20 |
9 |
0 |
0 |
0 |
| CDI |
0 |
15 |
11 |
67 |
76 |
80 |
32 |
17 |
| VCDI |
0 |
0 |
0 |
0 |
64 |
375 |
6811 |
25149 |
|
Date: 2024-01-24:
| 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 |
68 |
13 |
19 |
0 |
0 |
0 |
0 |
| OW |
0 |
22 |
37 |
42 |
0 |
0 |
0 |
0 |
| VODI |
0 |
19 |
34 |
46 |
46 |
0 |
0 |
0 |
| ODI |
0 |
0 |
4 |
63 |
34 |
6 |
1 |
0 |
| CDI |
0 |
0 |
0 |
40 |
72 |
89 |
17 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
261 |
3851 |
28299 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
70 |
15 |
21 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
10 |
42 |
36 |
0 |
0 |
0 |
| VODI |
0 |
1 |
13 |
35 |
31 |
0 |
0 |
0 |
| ODI |
0 |
17 |
12 |
30 |
13 |
3 |
0 |
0 |
| CDI |
0 |
16 |
35 |
61 |
36 |
59 |
8 |
5 |
| VCDI |
0 |
5 |
3 |
21 |
48 |
294 |
3861 |
28295 |
|
Date: 2024-01-26:
| 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 |
59 |
14 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
12 |
31 |
2 |
0 |
0 |
0 |
| VODI |
0 |
41 |
25 |
75 |
37 |
1 |
0 |
0 |
| ODI |
0 |
37 |
21 |
26 |
27 |
4 |
0 |
0 |
| CDI |
0 |
22 |
23 |
35 |
26 |
43 |
5 |
1 |
| VCDI |
0 |
4 |
13 |
73 |
90 |
602 |
7846 |
23860 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
63 |
17 |
29 |
1 |
0 |
0 |
0 |
| OW |
0 |
4 |
4 |
41 |
26 |
0 |
0 |
0 |
| VODI |
0 |
7 |
8 |
45 |
28 |
5 |
0 |
0 |
| ODI |
0 |
23 |
17 |
22 |
13 |
12 |
3 |
0 |
| CDI |
0 |
47 |
33 |
49 |
22 |
29 |
40 |
0 |
| VCDI |
0 |
36 |
29 |
78 |
92 |
604 |
7808 |
23861 |
|
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