Validation of sea ice concentration - Asian sector
Bulletin date: 2022-12-15
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-09:
| 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 |
933 |
528 |
104 |
56 |
18 |
0 |
0 |
| OW |
0 |
17 |
46 |
103 |
41 |
31 |
0 |
0 |
| VODI |
0 |
8 |
17 |
58 |
70 |
36 |
0 |
0 |
| ODI |
0 |
0 |
4 |
33 |
103 |
71 |
0 |
0 |
| CDI |
0 |
0 |
0 |
51 |
164 |
239 |
4 |
2 |
| VCDI |
0 |
0 |
0 |
1 |
91 |
1338 |
9783 |
18132 |
|
...date precedes bulletin
|
Date: 2022-12-11:
| 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 |
727 |
438 |
150 |
80 |
9 |
0 |
0 |
| OW |
0 |
9 |
69 |
98 |
140 |
55 |
0 |
0 |
| VODI |
0 |
1 |
29 |
74 |
68 |
50 |
0 |
0 |
| ODI |
0 |
0 |
1 |
51 |
83 |
51 |
0 |
0 |
| CDI |
0 |
0 |
0 |
31 |
139 |
132 |
5 |
17 |
| VCDI |
0 |
0 |
0 |
25 |
180 |
1106 |
7582 |
20682 |
|
...date precedes bulletin
|
Date: 2022-12-13:
| 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 |
898 |
243 |
92 |
45 |
1 |
0 |
0 |
| OW |
0 |
37 |
122 |
74 |
31 |
9 |
0 |
0 |
| VODI |
0 |
10 |
26 |
135 |
129 |
59 |
0 |
0 |
| ODI |
0 |
4 |
2 |
73 |
94 |
162 |
3 |
0 |
| CDI |
0 |
1 |
1 |
56 |
105 |
232 |
51 |
1 |
| VCDI |
0 |
0 |
0 |
6 |
108 |
1523 |
10875 |
16874 |
|
...date precedes bulletin
|
Date: 2022-12-15:
| 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 |
630 |
452 |
78 |
37 |
0 |
0 |
0 |
| OW |
0 |
47 |
129 |
63 |
30 |
7 |
0 |
0 |
| VODI |
0 |
12 |
55 |
119 |
89 |
35 |
0 |
0 |
| ODI |
0 |
4 |
7 |
38 |
87 |
97 |
0 |
0 |
| CDI |
0 |
2 |
1 |
28 |
54 |
141 |
45 |
34 |
| VCDI |
0 |
0 |
0 |
15 |
161 |
601 |
9082 |
19902 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
592 |
486 |
92 |
42 |
1 |
0 |
0 |
| OW |
0 |
80 |
92 |
56 |
38 |
6 |
0 |
0 |
| VODI |
0 |
18 |
58 |
106 |
73 |
26 |
0 |
0 |
| ODI |
0 |
2 |
7 |
47 |
82 |
72 |
0 |
0 |
| CDI |
0 |
3 |
1 |
24 |
59 |
139 |
25 |
31 |
| VCDI |
0 |
0 |
0 |
16 |
164 |
637 |
9102 |
19905 |
|
Date: 2022-12-17:
| 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 |
952 |
199 |
59 |
23 |
0 |
0 |
0 |
| OW |
0 |
170 |
85 |
54 |
26 |
0 |
0 |
0 |
| VODI |
0 |
55 |
88 |
101 |
65 |
5 |
0 |
0 |
| ODI |
0 |
22 |
32 |
74 |
66 |
38 |
10 |
0 |
| CDI |
0 |
16 |
30 |
39 |
58 |
131 |
32 |
1 |
| VCDI |
0 |
13 |
42 |
136 |
226 |
1575 |
10216 |
17443 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
891 |
202 |
71 |
24 |
0 |
0 |
0 |
| OW |
0 |
213 |
59 |
40 |
23 |
0 |
0 |
0 |
| VODI |
0 |
74 |
116 |
79 |
51 |
5 |
0 |
0 |
| ODI |
0 |
22 |
31 |
103 |
60 |
29 |
10 |
0 |
| CDI |
0 |
14 |
29 |
35 |
70 |
89 |
30 |
2 |
| VCDI |
0 |
14 |
39 |
135 |
236 |
1626 |
10218 |
17442 |
|
Date: 2022-12-19:
| 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 |
1038 |
133 |
66 |
51 |
6 |
0 |
0 |
| OW |
0 |
69 |
66 |
86 |
25 |
10 |
0 |
0 |
| VODI |
0 |
40 |
62 |
101 |
86 |
14 |
0 |
0 |
| ODI |
0 |
25 |
12 |
50 |
121 |
52 |
1 |
0 |
| CDI |
0 |
13 |
20 |
33 |
60 |
159 |
64 |
0 |
| VCDI |
0 |
4 |
43 |
140 |
185 |
1034 |
14491 |
13722 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
873 |
70 |
63 |
65 |
16 |
0 |
0 |
| OW |
0 |
185 |
83 |
56 |
27 |
14 |
0 |
0 |
| VODI |
0 |
68 |
97 |
114 |
63 |
23 |
0 |
0 |
| ODI |
0 |
29 |
13 |
55 |
116 |
46 |
9 |
0 |
| CDI |
0 |
21 |
18 |
31 |
56 |
108 |
81 |
17 |
| VCDI |
0 |
13 |
55 |
157 |
201 |
1068 |
14466 |
13705 |
|
Date: 2022-12-21:
| 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 |
789 |
158 |
93 |
51 |
17 |
0 |
0 |
| OW |
0 |
41 |
82 |
107 |
16 |
16 |
0 |
0 |
| VODI |
0 |
9 |
66 |
97 |
110 |
16 |
0 |
0 |
| ODI |
0 |
0 |
18 |
72 |
105 |
87 |
1 |
0 |
| CDI |
0 |
0 |
7 |
50 |
68 |
174 |
55 |
12 |
| VCDI |
0 |
0 |
5 |
112 |
131 |
467 |
8667 |
20383 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
635 |
96 |
70 |
40 |
13 |
0 |
0 |
| OW |
0 |
122 |
51 |
42 |
32 |
23 |
0 |
0 |
| VODI |
0 |
68 |
91 |
116 |
36 |
24 |
0 |
0 |
| ODI |
0 |
13 |
52 |
79 |
109 |
36 |
0 |
0 |
| CDI |
0 |
1 |
21 |
57 |
103 |
146 |
63 |
40 |
| VCDI |
0 |
0 |
25 |
167 |
161 |
535 |
8660 |
20355 |
|
Date: 2022-12-23:
| 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 |
692 |
134 |
79 |
30 |
46 |
8 |
0 |
| OW |
0 |
46 |
40 |
50 |
25 |
9 |
16 |
0 |
| VODI |
0 |
18 |
45 |
86 |
71 |
21 |
9 |
0 |
| ODI |
0 |
0 |
8 |
68 |
71 |
70 |
12 |
0 |
| CDI |
0 |
0 |
2 |
30 |
48 |
202 |
152 |
15 |
| VCDI |
0 |
0 |
0 |
32 |
177 |
993 |
13446 |
15331 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
603 |
98 |
72 |
26 |
45 |
5 |
0 |
| OW |
0 |
111 |
46 |
42 |
22 |
12 |
24 |
0 |
| VODI |
0 |
40 |
50 |
78 |
112 |
24 |
11 |
0 |
| ODI |
0 |
2 |
28 |
54 |
41 |
106 |
22 |
0 |
| CDI |
0 |
0 |
7 |
52 |
31 |
181 |
157 |
18 |
| VCDI |
0 |
0 |
0 |
47 |
190 |
973 |
13424 |
15328 |
|
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