Validation of sea ice concentration - Asian sector
Bulletin date: 2024-01-25
Data source: OSI SAF N.H. AMSR 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
14 |
0 |
0 |
5 |
3 |
0 |
0 |
| VODI |
0 |
88 |
13 |
35 |
38 |
4 |
0 |
0 |
| ODI |
0 |
62 |
14 |
8 |
2 |
7 |
1 |
0 |
| CDI |
0 |
38 |
3 |
10 |
5 |
16 |
9 |
0 |
| VCDI |
0 |
17 |
8 |
39 |
64 |
654 |
8723 |
22202 |
|
...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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
22 |
2 |
2 |
9 |
9 |
0 |
0 |
| VODI |
0 |
55 |
5 |
9 |
29 |
22 |
0 |
0 |
| ODI |
0 |
103 |
4 |
1 |
2 |
0 |
0 |
0 |
| CDI |
0 |
58 |
16 |
42 |
24 |
45 |
62 |
0 |
| VCDI |
0 |
0 |
1 |
25 |
100 |
717 |
13959 |
16759 |
|
...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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
82 |
9 |
5 |
4 |
0 |
0 |
0 |
| VODI |
0 |
40 |
5 |
7 |
12 |
33 |
2 |
0 |
| ODI |
0 |
16 |
17 |
26 |
12 |
17 |
10 |
0 |
| CDI |
0 |
0 |
2 |
16 |
36 |
122 |
46 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
28 |
385 |
9383 |
21767 |
|
...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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
55 |
9 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
57 |
19 |
32 |
28 |
2 |
0 |
0 |
| ODI |
0 |
35 |
17 |
13 |
10 |
14 |
0 |
0 |
| CDI |
0 |
41 |
18 |
18 |
16 |
57 |
10 |
0 |
| VCDI |
0 |
5 |
6 |
32 |
49 |
385 |
8835 |
22310 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
64 |
10 |
8 |
0 |
0 |
0 |
0 |
| VODI |
0 |
53 |
22 |
33 |
28 |
4 |
0 |
0 |
| ODI |
0 |
26 |
13 |
13 |
9 |
11 |
0 |
0 |
| CDI |
0 |
43 |
18 |
18 |
18 |
59 |
14 |
0 |
| VCDI |
0 |
7 |
6 |
32 |
48 |
384 |
8831 |
22310 |
|
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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
13 |
14 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
54 |
24 |
46 |
36 |
8 |
0 |
0 |
| ODI |
0 |
42 |
17 |
14 |
16 |
8 |
1 |
0 |
| CDI |
0 |
46 |
16 |
17 |
19 |
11 |
1 |
0 |
| VCDI |
0 |
43 |
34 |
49 |
84 |
663 |
13907 |
16894 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
16 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
57 |
22 |
47 |
39 |
9 |
0 |
0 |
| ODI |
0 |
35 |
18 |
14 |
10 |
7 |
1 |
0 |
| CDI |
0 |
44 |
18 |
17 |
23 |
14 |
3 |
0 |
| VCDI |
0 |
44 |
31 |
47 |
83 |
660 |
13905 |
16894 |
|
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 |
11 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
231 |
14 |
21 |
4 |
0 |
0 |
0 |
| VODI |
0 |
92 |
2 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
34 |
1 |
1 |
3 |
2 |
1 |
0 |
| CDI |
0 |
79 |
17 |
19 |
21 |
21 |
7 |
0 |
| VCDI |
0 |
116 |
28 |
93 |
236 |
932 |
9646 |
20450 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
34 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
164 |
10 |
10 |
1 |
0 |
0 |
0 |
| ODI |
0 |
96 |
6 |
12 |
5 |
2 |
0 |
0 |
| CDI |
0 |
64 |
1 |
6 |
14 |
19 |
4 |
0 |
| VCDI |
0 |
205 |
45 |
106 |
244 |
934 |
9650 |
20450 |
|
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 |
19 |
73 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
58 |
178 |
0 |
1 |
2 |
0 |
0 |
0 |
| VODI |
6 |
146 |
6 |
4 |
3 |
2 |
0 |
0 |
| ODI |
0 |
54 |
7 |
13 |
8 |
4 |
0 |
0 |
| CDI |
0 |
88 |
17 |
36 |
41 |
56 |
12 |
0 |
| VCDI |
0 |
386 |
76 |
195 |
487 |
2186 |
9427 |
18491 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
6 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
21 |
38 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
56 |
103 |
0 |
2 |
1 |
0 |
0 |
0 |
| ODI |
6 |
125 |
1 |
2 |
6 |
1 |
0 |
0 |
| CDI |
0 |
204 |
22 |
27 |
38 |
50 |
14 |
0 |
| VCDI |
0 |
449 |
83 |
218 |
496 |
2197 |
9425 |
18491 |
|
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 |
81 |
75 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
89 |
130 |
7 |
8 |
1 |
0 |
0 |
0 |
| VODI |
24 |
177 |
8 |
10 |
13 |
0 |
0 |
0 |
| ODI |
0 |
65 |
12 |
18 |
10 |
5 |
0 |
0 |
| CDI |
0 |
117 |
24 |
65 |
55 |
50 |
16 |
0 |
| VCDI |
0 |
551 |
131 |
379 |
805 |
2318 |
7115 |
19722 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10 |
7 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
42 |
13 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
103 |
41 |
2 |
3 |
1 |
0 |
0 |
0 |
| ODI |
33 |
81 |
2 |
12 |
4 |
0 |
0 |
0 |
| CDI |
6 |
228 |
11 |
20 |
27 |
22 |
8 |
0 |
| VCDI |
0 |
745 |
167 |
446 |
852 |
2351 |
7123 |
19722 |
|
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