Validation of sea ice concentration - Asian sector
Bulletin date: 2024-01-25
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-01-19:
| 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 |
0 |
21 |
8 |
46 |
29 |
0 |
0 |
0 |
| OW |
0 |
30 |
4 |
10 |
11 |
0 |
0 |
0 |
| VODI |
0 |
28 |
6 |
1 |
0 |
0 |
0 |
0 |
| ODI |
0 |
23 |
1 |
2 |
0 |
10 |
0 |
0 |
| CDI |
0 |
22 |
0 |
1 |
1 |
47 |
87 |
31 |
| VCDI |
0 |
45 |
26 |
70 |
131 |
693 |
4655 |
26043 |
|
...date precedes bulletin
|
Date: 2024-01-21:
| 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 |
10 |
9 |
26 |
40 |
0 |
0 |
0 |
| OW |
0 |
31 |
5 |
4 |
19 |
0 |
0 |
0 |
| VODI |
0 |
24 |
5 |
3 |
2 |
0 |
0 |
0 |
| ODI |
0 |
25 |
1 |
3 |
3 |
18 |
0 |
0 |
| CDI |
0 |
23 |
5 |
4 |
21 |
76 |
80 |
38 |
| VCDI |
0 |
36 |
22 |
71 |
133 |
764 |
6698 |
23883 |
|
...date precedes bulletin
|
Date: 2024-01-23:
| 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 |
24 |
2 |
49 |
25 |
22 |
0 |
0 |
| OW |
0 |
11 |
7 |
6 |
4 |
13 |
0 |
0 |
| VODI |
0 |
16 |
5 |
10 |
3 |
7 |
0 |
0 |
| ODI |
0 |
7 |
5 |
9 |
2 |
0 |
0 |
0 |
| CDI |
0 |
3 |
7 |
15 |
13 |
25 |
15 |
55 |
| VCDI |
0 |
1 |
4 |
36 |
70 |
385 |
4012 |
27214 |
|
...date precedes bulletin
|
Date: 2024-01-25:
| 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 |
15 |
12 |
62 |
2 |
0 |
0 |
0 |
| OW |
0 |
11 |
12 |
31 |
11 |
0 |
0 |
0 |
| VODI |
0 |
18 |
17 |
7 |
22 |
0 |
0 |
0 |
| ODI |
0 |
17 |
14 |
0 |
0 |
4 |
4 |
0 |
| CDI |
0 |
25 |
7 |
7 |
2 |
56 |
31 |
15 |
| VCDI |
0 |
2 |
20 |
83 |
103 |
417 |
4360 |
26695 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
14 |
10 |
74 |
4 |
0 |
0 |
0 |
| OW |
0 |
9 |
13 |
20 |
20 |
0 |
0 |
0 |
| VODI |
0 |
17 |
17 |
6 |
11 |
0 |
0 |
0 |
| ODI |
0 |
21 |
10 |
0 |
0 |
7 |
5 |
0 |
| CDI |
0 |
23 |
9 |
6 |
2 |
52 |
33 |
10 |
| VCDI |
0 |
4 |
23 |
84 |
103 |
418 |
4357 |
26700 |
|
Date: 2024-01-27:
| 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 |
3 |
4 |
50 |
1 |
0 |
0 |
0 |
| OW |
0 |
15 |
8 |
46 |
12 |
0 |
0 |
0 |
| VODI |
0 |
11 |
9 |
16 |
24 |
0 |
0 |
0 |
| ODI |
0 |
13 |
13 |
11 |
8 |
0 |
2 |
0 |
| CDI |
0 |
19 |
18 |
4 |
14 |
35 |
46 |
76 |
| VCDI |
0 |
26 |
44 |
115 |
107 |
618 |
8415 |
22299 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
4 |
4 |
58 |
3 |
0 |
0 |
0 |
| OW |
0 |
11 |
7 |
36 |
14 |
0 |
0 |
0 |
| VODI |
0 |
13 |
10 |
18 |
22 |
0 |
0 |
0 |
| ODI |
0 |
11 |
11 |
9 |
7 |
0 |
2 |
0 |
| CDI |
0 |
17 |
18 |
5 |
13 |
41 |
43 |
75 |
| VCDI |
0 |
31 |
46 |
116 |
107 |
612 |
8418 |
22300 |
|
Date: 2024-01-29:
| 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 |
236 |
8 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
64 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
39 |
6 |
5 |
3 |
0 |
0 |
0 |
| ODI |
0 |
41 |
3 |
19 |
25 |
23 |
0 |
0 |
| CDI |
0 |
40 |
12 |
37 |
46 |
77 |
26 |
6 |
| VCDI |
0 |
44 |
23 |
97 |
209 |
940 |
8154 |
21899 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
94 |
5 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
87 |
3 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
71 |
0 |
0 |
5 |
0 |
0 |
0 |
| ODI |
0 |
36 |
2 |
8 |
17 |
22 |
0 |
0 |
| CDI |
0 |
38 |
2 |
22 |
34 |
75 |
17 |
1 |
| VCDI |
0 |
138 |
40 |
128 |
227 |
943 |
8163 |
21904 |
|
Date: 2024-01-31:
| 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 |
31 |
221 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
13 |
102 |
2 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
108 |
5 |
30 |
11 |
0 |
0 |
0 |
| ODI |
0 |
83 |
5 |
42 |
59 |
35 |
0 |
1 |
| CDI |
0 |
76 |
4 |
58 |
84 |
136 |
28 |
33 |
| VCDI |
0 |
135 |
48 |
266 |
444 |
2454 |
6799 |
20768 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14 |
82 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
23 |
62 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
7 |
69 |
0 |
14 |
10 |
13 |
0 |
0 |
| ODI |
0 |
46 |
2 |
37 |
25 |
43 |
2 |
2 |
| CDI |
0 |
88 |
4 |
39 |
73 |
117 |
68 |
85 |
| VCDI |
0 |
378 |
58 |
307 |
490 |
2452 |
6757 |
20715 |
|
Date: 2024-02-02:
| 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 |
129 |
128 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
29 |
92 |
1 |
2 |
2 |
0 |
0 |
0 |
| VODI |
0 |
194 |
20 |
60 |
27 |
0 |
0 |
0 |
| ODI |
0 |
109 |
9 |
71 |
47 |
36 |
0 |
0 |
| CDI |
0 |
91 |
1 |
79 |
106 |
138 |
16 |
0 |
| VCDI |
0 |
220 |
84 |
373 |
882 |
2709 |
6497 |
19930 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66 |
14 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
51 |
23 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
25 |
41 |
1 |
1 |
9 |
0 |
0 |
0 |
| ODI |
14 |
49 |
2 |
30 |
20 |
33 |
1 |
1 |
| CDI |
2 |
131 |
7 |
48 |
51 |
111 |
49 |
83 |
| VCDI |
0 |
576 |
105 |
506 |
984 |
2739 |
6463 |
19846 |
|
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