Validation of sea ice concentration - Asian sector
Bulletin date: 2024-01-25
Data source: OSI SAF N.H. multi-product 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 |
110 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
12 |
9 |
4 |
2 |
7 |
0 |
0 |
0 |
| VODI |
10 |
86 |
9 |
58 |
29 |
0 |
0 |
0 |
| ODI |
6 |
75 |
11 |
8 |
4 |
3 |
0 |
0 |
| CDI |
12 |
7 |
20 |
24 |
10 |
22 |
9 |
1 |
| VCDI |
0 |
0 |
1 |
43 |
126 |
808 |
5799 |
25771 |
|
...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 |
105 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
27 |
9 |
9 |
14 |
0 |
0 |
0 |
| VODI |
0 |
49 |
15 |
26 |
50 |
0 |
0 |
0 |
| ODI |
0 |
90 |
16 |
17 |
6 |
0 |
0 |
0 |
| CDI |
0 |
11 |
14 |
74 |
62 |
70 |
51 |
5 |
| VCDI |
0 |
0 |
0 |
5 |
107 |
905 |
7014 |
24345 |
|
...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 |
81 |
14 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
57 |
8 |
57 |
0 |
0 |
0 |
0 |
| VODI |
0 |
20 |
11 |
39 |
25 |
23 |
0 |
0 |
| ODI |
0 |
1 |
3 |
60 |
25 |
27 |
0 |
0 |
| CDI |
0 |
0 |
0 |
16 |
70 |
123 |
23 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
313 |
4067 |
28020 |
|
...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 |
63 |
13 |
23 |
0 |
0 |
0 |
0 |
| OW |
0 |
30 |
23 |
36 |
0 |
0 |
0 |
0 |
| VODI |
0 |
43 |
21 |
64 |
27 |
0 |
0 |
0 |
| ODI |
0 |
23 |
23 |
39 |
23 |
4 |
0 |
0 |
| CDI |
0 |
0 |
9 |
65 |
34 |
68 |
5 |
1 |
| VCDI |
0 |
0 |
0 |
27 |
80 |
452 |
4909 |
26991 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
63 |
13 |
22 |
0 |
0 |
0 |
0 |
| OW |
0 |
38 |
24 |
34 |
0 |
0 |
0 |
0 |
| VODI |
0 |
37 |
25 |
72 |
28 |
0 |
0 |
0 |
| ODI |
0 |
20 |
15 |
32 |
20 |
3 |
0 |
0 |
| CDI |
0 |
1 |
12 |
65 |
38 |
68 |
6 |
1 |
| VCDI |
0 |
0 |
0 |
29 |
78 |
453 |
4908 |
26991 |
|
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 |
57 |
5 |
31 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
7 |
23 |
7 |
0 |
0 |
0 |
| VODI |
0 |
42 |
15 |
94 |
39 |
0 |
0 |
0 |
| ODI |
0 |
41 |
13 |
34 |
32 |
0 |
0 |
0 |
| CDI |
0 |
26 |
19 |
33 |
31 |
10 |
5 |
0 |
| VCDI |
0 |
4 |
9 |
86 |
98 |
738 |
9903 |
21684 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
58 |
5 |
31 |
0 |
0 |
0 |
0 |
| OW |
0 |
14 |
8 |
24 |
5 |
0 |
0 |
0 |
| VODI |
0 |
47 |
15 |
93 |
42 |
0 |
0 |
0 |
| ODI |
0 |
37 |
12 |
32 |
25 |
0 |
0 |
0 |
| CDI |
0 |
21 |
20 |
36 |
39 |
12 |
3 |
0 |
| VCDI |
0 |
3 |
8 |
85 |
96 |
736 |
9905 |
21684 |
|
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 |
73 |
13 |
2 |
0 |
0 |
0 |
0 |
| OW |
10 |
252 |
8 |
13 |
0 |
0 |
0 |
0 |
| VODI |
7 |
93 |
4 |
24 |
0 |
0 |
0 |
0 |
| ODI |
0 |
21 |
7 |
14 |
19 |
12 |
0 |
0 |
| CDI |
0 |
47 |
9 |
54 |
47 |
54 |
8 |
0 |
| VCDI |
0 |
39 |
24 |
99 |
264 |
1143 |
8326 |
22410 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
62 |
13 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
34 |
0 |
12 |
0 |
0 |
0 |
0 |
| VODI |
9 |
174 |
5 |
13 |
0 |
0 |
0 |
0 |
| ODI |
8 |
110 |
6 |
11 |
16 |
8 |
0 |
0 |
| CDI |
0 |
43 |
8 |
22 |
35 |
56 |
4 |
0 |
| VCDI |
0 |
102 |
33 |
142 |
279 |
1145 |
8330 |
22410 |
|
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 |
9 |
144 |
9 |
1 |
0 |
0 |
0 |
0 |
| OW |
42 |
187 |
6 |
21 |
3 |
0 |
0 |
0 |
| VODI |
11 |
131 |
7 |
41 |
17 |
0 |
0 |
0 |
| ODI |
0 |
36 |
4 |
43 |
23 |
9 |
0 |
0 |
| CDI |
0 |
59 |
3 |
76 |
85 |
85 |
23 |
1 |
| VCDI |
0 |
228 |
51 |
290 |
524 |
2714 |
7303 |
20910 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
66 |
4 |
0 |
0 |
0 |
0 |
0 |
| OW |
11 |
49 |
8 |
4 |
0 |
0 |
0 |
0 |
| VODI |
40 |
119 |
3 |
23 |
1 |
0 |
0 |
0 |
| ODI |
11 |
116 |
1 |
36 |
12 |
7 |
0 |
0 |
| CDI |
0 |
162 |
3 |
87 |
98 |
72 |
28 |
0 |
| VCDI |
0 |
273 |
61 |
322 |
541 |
2729 |
7298 |
20911 |
|
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 |
69 |
143 |
3 |
19 |
1 |
0 |
0 |
0 |
| OW |
78 |
128 |
3 |
51 |
3 |
0 |
0 |
0 |
| VODI |
31 |
156 |
11 |
50 |
22 |
0 |
0 |
0 |
| ODI |
0 |
36 |
13 |
53 |
25 |
3 |
0 |
0 |
| CDI |
0 |
77 |
13 |
102 |
112 |
79 |
5 |
0 |
| VCDI |
0 |
373 |
58 |
415 |
950 |
2978 |
6647 |
20389 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7 |
65 |
0 |
3 |
0 |
0 |
0 |
0 |
| OW |
39 |
16 |
3 |
14 |
0 |
0 |
0 |
0 |
| VODI |
99 |
38 |
0 |
28 |
1 |
0 |
0 |
0 |
| ODI |
33 |
93 |
1 |
30 |
10 |
0 |
0 |
0 |
| CDI |
0 |
203 |
9 |
89 |
51 |
54 |
2 |
1 |
| VCDI |
0 |
498 |
88 |
526 |
1051 |
3006 |
6650 |
20388 |
|
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