Validation of sea ice concentration - Asian sector
Bulletin date: 2024-03-14
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-08:
| 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 |
90 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
120 |
8 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
73 |
9 |
11 |
6 |
0 |
0 |
0 |
| ODI |
0 |
46 |
11 |
15 |
12 |
0 |
0 |
0 |
| CDI |
0 |
51 |
15 |
36 |
54 |
35 |
10 |
1 |
| VCDI |
0 |
3 |
7 |
34 |
134 |
651 |
6100 |
24548 |
|
...date precedes bulletin
|
Date: 2024-03-10:
| 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 |
81 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
117 |
4 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
81 |
11 |
11 |
5 |
0 |
0 |
0 |
| ODI |
0 |
57 |
9 |
5 |
6 |
4 |
0 |
0 |
| CDI |
0 |
43 |
14 |
37 |
9 |
21 |
1 |
0 |
| VCDI |
0 |
2 |
6 |
35 |
84 |
350 |
3643 |
27446 |
|
...date precedes bulletin
|
Date: 2024-03-12:
| 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 |
91 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
160 |
9 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
55 |
16 |
8 |
6 |
0 |
0 |
0 |
| ODI |
0 |
22 |
3 |
19 |
11 |
3 |
0 |
0 |
| CDI |
0 |
8 |
11 |
46 |
38 |
40 |
7 |
26 |
| VCDI |
0 |
0 |
0 |
37 |
60 |
368 |
6134 |
24896 |
|
...date precedes bulletin
|
Date: 2024-03-14:
| 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 |
15 |
8 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
107 |
12 |
22 |
3 |
0 |
0 |
0 |
| VODI |
0 |
54 |
15 |
10 |
4 |
0 |
0 |
0 |
| ODI |
0 |
11 |
12 |
33 |
12 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
13 |
77 |
56 |
20 |
0 |
| VCDI |
0 |
1 |
1 |
10 |
54 |
774 |
8807 |
21937 |
|
|
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 |
17 |
0 |
0 |
0 |
0 |
| OW |
0 |
101 |
12 |
19 |
2 |
0 |
0 |
0 |
| VODI |
0 |
50 |
16 |
14 |
4 |
0 |
0 |
0 |
| ODI |
0 |
12 |
12 |
28 |
17 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
74 |
60 |
25 |
4 |
| VCDI |
0 |
1 |
1 |
10 |
53 |
770 |
8802 |
21933 |
|
Date: 2024-03-16:
| 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 |
35 |
6 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
89 |
10 |
16 |
10 |
0 |
0 |
0 |
| VODI |
0 |
74 |
8 |
8 |
17 |
1 |
0 |
0 |
| ODI |
0 |
38 |
5 |
3 |
4 |
1 |
5 |
0 |
| CDI |
0 |
52 |
19 |
17 |
1 |
4 |
42 |
0 |
| VCDI |
0 |
10 |
17 |
118 |
134 |
539 |
11330 |
19466 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
34 |
9 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
98 |
5 |
15 |
10 |
0 |
0 |
0 |
| VODI |
0 |
74 |
7 |
7 |
15 |
0 |
0 |
0 |
| ODI |
0 |
35 |
9 |
4 |
5 |
2 |
5 |
0 |
| CDI |
0 |
45 |
17 |
22 |
3 |
4 |
46 |
4 |
| VCDI |
0 |
12 |
18 |
113 |
133 |
539 |
11326 |
19462 |
|
Date: 2024-03-18:
| 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 |
46 |
3 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
131 |
23 |
15 |
3 |
0 |
0 |
0 |
| VODI |
0 |
38 |
13 |
18 |
16 |
1 |
0 |
0 |
| ODI |
0 |
20 |
8 |
21 |
17 |
6 |
0 |
0 |
| CDI |
0 |
16 |
19 |
34 |
14 |
43 |
28 |
0 |
| VCDI |
0 |
4 |
12 |
79 |
107 |
526 |
11325 |
19495 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
41 |
5 |
3 |
3 |
0 |
0 |
0 |
| OW |
0 |
60 |
10 |
14 |
9 |
3 |
0 |
0 |
| VODI |
0 |
60 |
15 |
9 |
17 |
6 |
0 |
0 |
| ODI |
0 |
47 |
8 |
17 |
8 |
6 |
0 |
0 |
| CDI |
0 |
35 |
17 |
25 |
5 |
29 |
29 |
0 |
| VCDI |
0 |
12 |
23 |
100 |
115 |
532 |
11324 |
19495 |
|
Date: 2024-03-20:
| 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 |
15 |
5 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
82 |
20 |
28 |
2 |
0 |
0 |
0 |
| VODI |
0 |
22 |
11 |
38 |
13 |
1 |
0 |
0 |
| ODI |
0 |
11 |
12 |
29 |
25 |
10 |
0 |
0 |
| CDI |
0 |
0 |
0 |
22 |
87 |
57 |
77 |
7 |
| VCDI |
0 |
0 |
0 |
1 |
52 |
591 |
11612 |
19251 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
11 |
7 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
33 |
9 |
10 |
2 |
0 |
0 |
0 |
| VODI |
0 |
50 |
13 |
39 |
12 |
10 |
0 |
0 |
| ODI |
0 |
31 |
11 |
27 |
20 |
12 |
2 |
0 |
| CDI |
0 |
5 |
8 |
36 |
46 |
28 |
44 |
1 |
| VCDI |
0 |
0 |
0 |
3 |
99 |
609 |
11643 |
19257 |
|
Date: 2024-03-22:
| 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 |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
34 |
10 |
20 |
8 |
0 |
0 |
0 |
| VODI |
0 |
22 |
14 |
19 |
32 |
2 |
0 |
0 |
| ODI |
0 |
6 |
10 |
21 |
63 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
51 |
143 |
42 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
221 |
9299 |
22047 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
9 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
18 |
9 |
8 |
2 |
0 |
0 |
0 |
| VODI |
0 |
12 |
13 |
31 |
56 |
14 |
0 |
0 |
| ODI |
0 |
19 |
5 |
10 |
35 |
22 |
1 |
0 |
| CDI |
0 |
4 |
8 |
15 |
59 |
48 |
12 |
13 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
288 |
9328 |
22039 |
|
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