Validation of sea ice concentration - Asian sector
Bulletin date: 2022-12-22
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-16:
| 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 |
523 |
648 |
53 |
17 |
0 |
0 |
0 |
| OW |
0 |
69 |
150 |
56 |
24 |
0 |
0 |
0 |
| VODI |
0 |
27 |
107 |
96 |
65 |
4 |
0 |
0 |
| ODI |
0 |
11 |
33 |
71 |
87 |
25 |
3 |
0 |
| CDI |
0 |
9 |
19 |
39 |
68 |
131 |
19 |
0 |
| VCDI |
0 |
35 |
15 |
70 |
189 |
1216 |
9014 |
19189 |
|
...date precedes bulletin
|
Date: 2022-12-18:
| 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 |
837 |
224 |
66 |
62 |
0 |
0 |
0 |
| OW |
0 |
151 |
74 |
70 |
33 |
1 |
0 |
0 |
| VODI |
0 |
41 |
84 |
121 |
60 |
22 |
0 |
0 |
| ODI |
0 |
34 |
18 |
68 |
85 |
43 |
15 |
0 |
| CDI |
0 |
23 |
18 |
33 |
65 |
135 |
61 |
1 |
| VCDI |
0 |
20 |
46 |
156 |
211 |
1282 |
10871 |
17051 |
|
...date precedes bulletin
|
Date: 2022-12-20:
| 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 |
960 |
138 |
97 |
53 |
0 |
0 |
0 |
| OW |
0 |
60 |
74 |
110 |
29 |
0 |
0 |
0 |
| VODI |
0 |
22 |
63 |
112 |
74 |
11 |
0 |
0 |
| ODI |
0 |
4 |
29 |
58 |
138 |
56 |
0 |
0 |
| CDI |
0 |
6 |
13 |
42 |
60 |
157 |
79 |
4 |
| VCDI |
0 |
5 |
47 |
114 |
187 |
630 |
9455 |
19195 |
|
...date precedes bulletin
|
Date: 2022-12-22:
| 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 |
766 |
121 |
72 |
31 |
35 |
7 |
0 |
| OW |
0 |
50 |
37 |
56 |
21 |
13 |
14 |
0 |
| VODI |
0 |
13 |
64 |
89 |
85 |
21 |
8 |
0 |
| ODI |
0 |
2 |
12 |
70 |
56 |
96 |
2 |
0 |
| CDI |
0 |
3 |
3 |
42 |
51 |
198 |
122 |
15 |
| VCDI |
0 |
4 |
0 |
65 |
157 |
724 |
13019 |
15938 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
771 |
126 |
83 |
33 |
38 |
10 |
0 |
| OW |
0 |
43 |
40 |
66 |
30 |
13 |
12 |
0 |
| VODI |
0 |
15 |
57 |
91 |
94 |
33 |
7 |
0 |
| ODI |
0 |
2 |
12 |
46 |
46 |
127 |
10 |
0 |
| CDI |
0 |
3 |
2 |
46 |
43 |
169 |
118 |
21 |
| VCDI |
0 |
4 |
0 |
62 |
155 |
707 |
13015 |
15932 |
|
Date: 2022-12-24:
| 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 |
659 |
97 |
87 |
33 |
31 |
19 |
0 |
| OW |
0 |
74 |
50 |
46 |
14 |
8 |
19 |
0 |
| VODI |
0 |
23 |
52 |
104 |
51 |
12 |
12 |
0 |
| ODI |
0 |
5 |
11 |
78 |
77 |
53 |
14 |
0 |
| CDI |
0 |
1 |
11 |
26 |
67 |
193 |
123 |
15 |
| VCDI |
0 |
0 |
12 |
77 |
205 |
1413 |
10836 |
17474 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
672 |
104 |
97 |
36 |
31 |
23 |
0 |
| OW |
0 |
69 |
54 |
45 |
15 |
9 |
17 |
0 |
| VODI |
0 |
17 |
44 |
124 |
67 |
15 |
13 |
0 |
| ODI |
0 |
4 |
11 |
57 |
69 |
81 |
15 |
0 |
| CDI |
0 |
0 |
12 |
23 |
59 |
160 |
144 |
15 |
| VCDI |
0 |
0 |
8 |
72 |
201 |
1414 |
10811 |
17474 |
|
Date: 2022-12-26:
| 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 |
597 |
159 |
62 |
14 |
0 |
0 |
0 |
| OW |
0 |
24 |
86 |
57 |
36 |
10 |
0 |
0 |
| VODI |
0 |
15 |
46 |
85 |
43 |
36 |
1 |
0 |
| ODI |
0 |
9 |
20 |
55 |
68 |
58 |
6 |
0 |
| CDI |
0 |
4 |
12 |
32 |
117 |
167 |
38 |
0 |
| VCDI |
0 |
0 |
80 |
101 |
137 |
900 |
12275 |
16732 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
514 |
149 |
56 |
26 |
11 |
0 |
0 |
| OW |
0 |
95 |
50 |
58 |
18 |
19 |
4 |
0 |
| VODI |
0 |
21 |
73 |
67 |
41 |
33 |
9 |
0 |
| ODI |
0 |
12 |
28 |
57 |
88 |
63 |
7 |
0 |
| CDI |
0 |
6 |
21 |
37 |
92 |
215 |
66 |
0 |
| VCDI |
0 |
1 |
82 |
117 |
150 |
830 |
12234 |
16732 |
|
Date: 2022-12-28:
| 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 |
530 |
106 |
97 |
26 |
3 |
0 |
0 |
| OW |
0 |
27 |
42 |
65 |
62 |
21 |
0 |
0 |
| VODI |
0 |
10 |
24 |
53 |
54 |
67 |
0 |
0 |
| ODI |
0 |
3 |
10 |
35 |
28 |
108 |
4 |
0 |
| CDI |
0 |
1 |
7 |
46 |
8 |
181 |
66 |
3 |
| VCDI |
0 |
0 |
0 |
133 |
108 |
360 |
10186 |
19608 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
471 |
94 |
111 |
69 |
25 |
0 |
0 |
| OW |
0 |
80 |
35 |
50 |
40 |
45 |
9 |
0 |
| VODI |
0 |
16 |
34 |
45 |
47 |
108 |
17 |
0 |
| ODI |
0 |
2 |
17 |
33 |
13 |
88 |
38 |
0 |
| CDI |
0 |
2 |
9 |
48 |
7 |
169 |
154 |
6 |
| VCDI |
0 |
0 |
0 |
142 |
110 |
305 |
10038 |
19605 |
|
Date: 2022-12-30:
| 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 |
479 |
146 |
55 |
32 |
12 |
0 |
0 |
| OW |
0 |
95 |
66 |
60 |
35 |
17 |
0 |
0 |
| VODI |
0 |
65 |
63 |
61 |
68 |
29 |
0 |
0 |
| ODI |
0 |
36 |
48 |
38 |
40 |
55 |
0 |
0 |
| CDI |
0 |
22 |
54 |
35 |
79 |
172 |
50 |
0 |
| VCDI |
0 |
9 |
157 |
160 |
259 |
1389 |
10205 |
17991 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
419 |
161 |
100 |
92 |
25 |
0 |
0 |
| OW |
0 |
95 |
79 |
51 |
36 |
41 |
0 |
0 |
| VODI |
0 |
56 |
39 |
74 |
59 |
77 |
0 |
0 |
| ODI |
0 |
37 |
16 |
14 |
67 |
98 |
17 |
0 |
| CDI |
0 |
37 |
34 |
4 |
44 |
221 |
88 |
21 |
| VCDI |
0 |
62 |
205 |
166 |
215 |
1212 |
10150 |
17970 |
|
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