Validation of sea ice concentration - Asian sector
Bulletin date: 2024-01-18
Data source: OSI SAF N.H. AMSR 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 |
61 |
34 |
56 |
2 |
0 |
0 |
0 |
| OW |
0 |
10 |
7 |
15 |
2 |
0 |
0 |
0 |
| VODI |
0 |
5 |
5 |
16 |
9 |
2 |
0 |
0 |
| ODI |
0 |
11 |
2 |
15 |
13 |
3 |
0 |
0 |
| CDI |
0 |
3 |
3 |
13 |
32 |
20 |
42 |
6 |
| VCDI |
0 |
0 |
0 |
5 |
48 |
452 |
8587 |
22603 |
|
...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 |
22 |
18 |
47 |
59 |
0 |
0 |
0 |
| OW |
0 |
6 |
8 |
15 |
3 |
0 |
0 |
0 |
| VODI |
0 |
3 |
10 |
13 |
8 |
0 |
0 |
0 |
| ODI |
0 |
3 |
2 |
6 |
11 |
1 |
0 |
0 |
| CDI |
0 |
5 |
2 |
8 |
21 |
36 |
28 |
3 |
| VCDI |
0 |
0 |
2 |
9 |
46 |
311 |
6409 |
24967 |
|
...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 |
31 |
18 |
37 |
58 |
7 |
0 |
0 |
| OW |
0 |
12 |
5 |
6 |
3 |
0 |
0 |
0 |
| VODI |
0 |
18 |
5 |
7 |
7 |
0 |
0 |
0 |
| ODI |
0 |
6 |
3 |
4 |
7 |
0 |
0 |
0 |
| CDI |
0 |
4 |
1 |
6 |
23 |
22 |
6 |
8 |
| VCDI |
0 |
3 |
6 |
13 |
56 |
450 |
8460 |
22790 |
|
...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 |
0 |
20 |
7 |
20 |
52 |
21 |
0 |
0 |
| OW |
0 |
4 |
4 |
14 |
12 |
7 |
0 |
0 |
| VODI |
0 |
9 |
11 |
11 |
5 |
0 |
0 |
0 |
| ODI |
0 |
13 |
6 |
4 |
5 |
0 |
0 |
0 |
| CDI |
0 |
29 |
4 |
6 |
11 |
41 |
73 |
0 |
| VCDI |
0 |
41 |
19 |
47 |
67 |
524 |
9751 |
21244 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
21 |
7 |
24 |
59 |
28 |
0 |
0 |
| OW |
0 |
4 |
5 |
11 |
6 |
0 |
0 |
0 |
| VODI |
0 |
8 |
10 |
10 |
4 |
0 |
0 |
0 |
| ODI |
0 |
12 |
6 |
3 |
5 |
1 |
0 |
0 |
| CDI |
0 |
28 |
4 |
7 |
11 |
39 |
77 |
0 |
| VCDI |
0 |
43 |
19 |
47 |
67 |
525 |
9747 |
21244 |
|
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 |
0 |
17 |
10 |
20 |
38 |
15 |
0 |
0 |
| OW |
0 |
13 |
5 |
14 |
3 |
20 |
0 |
0 |
| VODI |
0 |
25 |
8 |
7 |
0 |
0 |
0 |
0 |
| ODI |
0 |
15 |
7 |
3 |
2 |
16 |
5 |
0 |
| CDI |
0 |
20 |
5 |
13 |
4 |
57 |
70 |
16 |
| VCDI |
0 |
119 |
21 |
33 |
89 |
585 |
11978 |
18829 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
19 |
11 |
25 |
40 |
27 |
0 |
0 |
| OW |
0 |
15 |
5 |
9 |
1 |
8 |
0 |
0 |
| VODI |
0 |
21 |
6 |
8 |
0 |
0 |
0 |
0 |
| ODI |
0 |
14 |
7 |
2 |
2 |
17 |
5 |
0 |
| CDI |
0 |
18 |
6 |
12 |
2 |
55 |
72 |
16 |
| VCDI |
0 |
122 |
21 |
34 |
91 |
586 |
11976 |
18829 |
|
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 |
70 |
7 |
11 |
21 |
17 |
0 |
0 |
| OW |
0 |
22 |
2 |
0 |
8 |
13 |
0 |
0 |
| VODI |
0 |
26 |
2 |
4 |
2 |
11 |
0 |
0 |
| ODI |
0 |
15 |
2 |
3 |
1 |
0 |
0 |
0 |
| CDI |
0 |
23 |
9 |
11 |
14 |
32 |
64 |
0 |
| VCDI |
0 |
17 |
13 |
36 |
78 |
520 |
11682 |
19346 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
24 |
7 |
11 |
27 |
27 |
0 |
0 |
| OW |
0 |
24 |
1 |
0 |
2 |
14 |
0 |
0 |
| VODI |
0 |
29 |
2 |
3 |
1 |
0 |
0 |
0 |
| ODI |
0 |
21 |
1 |
3 |
2 |
4 |
0 |
0 |
| CDI |
0 |
22 |
1 |
8 |
7 |
41 |
66 |
0 |
| VCDI |
0 |
53 |
23 |
40 |
85 |
507 |
11680 |
19346 |
|
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 |
33 |
14 |
32 |
26 |
5 |
0 |
0 |
| OW |
0 |
28 |
1 |
2 |
14 |
12 |
0 |
0 |
| VODI |
0 |
27 |
4 |
1 |
1 |
8 |
1 |
0 |
| ODI |
0 |
26 |
3 |
2 |
0 |
2 |
1 |
0 |
| CDI |
0 |
25 |
3 |
7 |
1 |
9 |
48 |
7 |
| VCDI |
0 |
15 |
13 |
29 |
55 |
328 |
5521 |
25778 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
14 |
5 |
26 |
35 |
13 |
0 |
0 |
| OW |
0 |
14 |
7 |
3 |
6 |
12 |
1 |
0 |
| VODI |
0 |
25 |
6 |
5 |
0 |
0 |
0 |
0 |
| ODI |
0 |
27 |
3 |
3 |
0 |
8 |
3 |
0 |
| CDI |
0 |
28 |
1 |
7 |
3 |
4 |
49 |
51 |
| VCDI |
0 |
46 |
16 |
29 |
53 |
327 |
5518 |
25734 |
|
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 |
13 |
19 |
35 |
13 |
0 |
0 |
0 |
| OW |
0 |
24 |
7 |
18 |
17 |
0 |
0 |
0 |
| VODI |
0 |
31 |
7 |
7 |
11 |
11 |
1 |
0 |
| ODI |
0 |
32 |
1 |
1 |
2 |
2 |
4 |
0 |
| CDI |
0 |
35 |
4 |
7 |
8 |
51 |
101 |
5 |
| VCDI |
0 |
98 |
29 |
57 |
67 |
462 |
11548 |
19354 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
9 |
12 |
41 |
30 |
0 |
0 |
0 |
| OW |
0 |
11 |
6 |
6 |
11 |
9 |
0 |
0 |
| VODI |
0 |
18 |
9 |
7 |
7 |
19 |
2 |
0 |
| ODI |
0 |
31 |
4 |
5 |
0 |
27 |
16 |
0 |
| CDI |
0 |
39 |
2 |
2 |
2 |
43 |
66 |
9 |
| VCDI |
0 |
125 |
34 |
64 |
68 |
428 |
11570 |
19350 |
|
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