Validation of sea ice concentration - Asian sector
Bulletin date: 2022-12-29
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
3 |
800 |
18 |
78 |
50 |
40 |
0 |
0 |
| OW |
0 |
52 |
12 |
68 |
29 |
22 |
3 |
0 |
| VODI |
0 |
24 |
7 |
92 |
111 |
10 |
6 |
0 |
| ODI |
0 |
6 |
3 |
36 |
142 |
35 |
7 |
0 |
| CDI |
0 |
1 |
1 |
22 |
80 |
219 |
87 |
39 |
| VCDI |
0 |
0 |
0 |
15 |
180 |
934 |
9588 |
19262 |
|
...date precedes bulletin
|
Date: 2022-12-25:
| 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 |
6 |
681 |
14 |
89 |
28 |
7 |
0 |
0 |
| OW |
0 |
115 |
4 |
44 |
39 |
16 |
0 |
0 |
| VODI |
0 |
54 |
15 |
81 |
69 |
14 |
0 |
0 |
| ODI |
0 |
19 |
4 |
58 |
166 |
15 |
3 |
0 |
| CDI |
0 |
25 |
2 |
18 |
151 |
160 |
27 |
8 |
| VCDI |
0 |
47 |
12 |
81 |
187 |
1195 |
9221 |
19407 |
|
...date precedes bulletin
|
Date: 2022-12-27:
| 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 |
11 |
687 |
18 |
63 |
10 |
0 |
0 |
0 |
| OW |
0 |
46 |
3 |
95 |
70 |
4 |
0 |
0 |
| VODI |
0 |
27 |
1 |
54 |
109 |
22 |
0 |
0 |
| ODI |
0 |
17 |
0 |
15 |
81 |
71 |
0 |
0 |
| CDI |
0 |
15 |
4 |
18 |
51 |
219 |
17 |
4 |
| VCDI |
0 |
12 |
5 |
96 |
154 |
606 |
6057 |
23420 |
|
...date precedes bulletin
|
Date: 2022-12-29:
| 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 |
36 |
577 |
17 |
80 |
32 |
0 |
0 |
0 |
| OW |
0 |
110 |
5 |
60 |
45 |
4 |
0 |
0 |
| VODI |
0 |
71 |
3 |
64 |
86 |
22 |
0 |
0 |
| ODI |
0 |
35 |
4 |
33 |
61 |
64 |
0 |
0 |
| CDI |
0 |
37 |
3 |
24 |
66 |
151 |
33 |
4 |
| VCDI |
0 |
69 |
11 |
108 |
213 |
890 |
6930 |
22134 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
36 |
576 |
17 |
80 |
35 |
0 |
0 |
0 |
| OW |
0 |
111 |
6 |
74 |
55 |
7 |
0 |
0 |
| VODI |
0 |
67 |
2 |
55 |
72 |
23 |
0 |
0 |
| ODI |
0 |
42 |
4 |
27 |
71 |
57 |
0 |
0 |
| CDI |
0 |
36 |
3 |
24 |
56 |
148 |
32 |
7 |
| VCDI |
0 |
67 |
11 |
109 |
214 |
896 |
6931 |
22131 |
|
Date: 2022-12-31:
| 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 |
15 |
514 |
15 |
73 |
31 |
0 |
0 |
0 |
| OW |
0 |
211 |
6 |
65 |
54 |
0 |
0 |
0 |
| VODI |
0 |
153 |
10 |
75 |
93 |
17 |
0 |
0 |
| ODI |
0 |
78 |
3 |
59 |
88 |
25 |
7 |
0 |
| CDI |
0 |
64 |
5 |
36 |
151 |
193 |
33 |
0 |
| VCDI |
0 |
189 |
18 |
156 |
385 |
1660 |
6938 |
20662 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15 |
572 |
15 |
72 |
42 |
0 |
0 |
0 |
| OW |
0 |
185 |
6 |
71 |
41 |
5 |
0 |
0 |
| VODI |
0 |
124 |
10 |
83 |
88 |
18 |
0 |
0 |
| ODI |
0 |
83 |
3 |
44 |
113 |
23 |
9 |
0 |
| CDI |
0 |
72 |
6 |
34 |
139 |
204 |
33 |
0 |
| VCDI |
0 |
173 |
17 |
160 |
379 |
1645 |
6936 |
20662 |
|
Date: 2023-01-02:
| 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 |
77 |
354 |
8 |
23 |
11 |
0 |
0 |
0 |
| OW |
0 |
97 |
5 |
104 |
46 |
0 |
0 |
0 |
| VODI |
0 |
136 |
5 |
104 |
101 |
5 |
0 |
0 |
| ODI |
0 |
75 |
3 |
25 |
148 |
42 |
0 |
0 |
| CDI |
0 |
63 |
3 |
22 |
143 |
180 |
7 |
0 |
| VCDI |
0 |
230 |
22 |
177 |
361 |
1071 |
5604 |
22830 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
77 |
274 |
8 |
57 |
92 |
5 |
0 |
0 |
| OW |
0 |
123 |
5 |
110 |
42 |
11 |
0 |
0 |
| VODI |
0 |
167 |
3 |
62 |
110 |
38 |
0 |
0 |
| ODI |
0 |
112 |
1 |
14 |
99 |
79 |
2 |
0 |
| CDI |
0 |
111 |
5 |
12 |
108 |
174 |
67 |
3 |
| VCDI |
0 |
168 |
24 |
200 |
359 |
991 |
5542 |
22827 |
|
Date: 2023-01-04:
| 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 |
23 |
298 |
0 |
0 |
4 |
0 |
0 |
0 |
| OW |
0 |
79 |
1 |
20 |
68 |
0 |
0 |
0 |
| VODI |
0 |
53 |
8 |
59 |
136 |
2 |
0 |
0 |
| ODI |
0 |
41 |
5 |
70 |
120 |
17 |
0 |
0 |
| CDI |
0 |
42 |
3 |
94 |
95 |
127 |
6 |
5 |
| VCDI |
0 |
59 |
6 |
119 |
325 |
1062 |
4611 |
24524 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23 |
300 |
1 |
2 |
119 |
0 |
0 |
0 |
| OW |
0 |
72 |
1 |
22 |
104 |
16 |
0 |
0 |
| VODI |
0 |
73 |
4 |
75 |
123 |
62 |
0 |
0 |
| ODI |
0 |
55 |
10 |
81 |
35 |
107 |
0 |
0 |
| CDI |
0 |
51 |
5 |
84 |
68 |
197 |
16 |
0 |
| VCDI |
0 |
21 |
2 |
98 |
299 |
826 |
4601 |
24529 |
|
Date: 2023-01-06:
| 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 |
14 |
242 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
63 |
3 |
1 |
1 |
12 |
0 |
0 |
| VODI |
0 |
75 |
4 |
10 |
32 |
103 |
0 |
0 |
| ODI |
0 |
33 |
6 |
34 |
46 |
104 |
0 |
0 |
| CDI |
0 |
13 |
3 |
78 |
53 |
150 |
5 |
0 |
| VCDI |
0 |
31 |
5 |
127 |
278 |
957 |
4070 |
25529 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14 |
280 |
3 |
2 |
0 |
87 |
0 |
0 |
| OW |
0 |
56 |
1 |
3 |
14 |
114 |
0 |
0 |
| VODI |
0 |
50 |
6 |
17 |
64 |
142 |
12 |
0 |
| ODI |
0 |
29 |
4 |
41 |
10 |
109 |
20 |
0 |
| CDI |
0 |
26 |
4 |
70 |
53 |
112 |
42 |
22 |
| VCDI |
0 |
16 |
3 |
117 |
269 |
762 |
4001 |
25507 |
|
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