Validation of sea ice concentration - Asian sector
Bulletin date: 2022-12-29
Data source: OSI SAF N.H. AMSR 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 |
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 |
|
...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 |
0 |
513 |
177 |
81 |
42 |
9 |
3 |
0 |
| OW |
0 |
58 |
68 |
40 |
29 |
9 |
14 |
0 |
| VODI |
0 |
35 |
73 |
50 |
34 |
32 |
9 |
0 |
| ODI |
0 |
16 |
15 |
93 |
86 |
47 |
8 |
0 |
| CDI |
0 |
7 |
22 |
40 |
91 |
182 |
41 |
8 |
| VCDI |
0 |
2 |
69 |
105 |
196 |
1189 |
11418 |
17171 |
|
...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 |
0 |
597 |
119 |
68 |
5 |
0 |
0 |
0 |
| OW |
0 |
16 |
47 |
89 |
57 |
9 |
0 |
0 |
| VODI |
0 |
13 |
18 |
73 |
76 |
33 |
0 |
0 |
| ODI |
0 |
5 |
11 |
37 |
62 |
60 |
9 |
0 |
| CDI |
0 |
0 |
10 |
36 |
52 |
192 |
34 |
4 |
| VCDI |
0 |
0 |
13 |
146 |
113 |
607 |
11616 |
17855 |
|
...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 |
0 |
393 |
232 |
80 |
28 |
9 |
0 |
0 |
| OW |
0 |
47 |
71 |
52 |
39 |
15 |
0 |
0 |
| VODI |
0 |
27 |
62 |
52 |
62 |
43 |
0 |
0 |
| ODI |
0 |
9 |
45 |
23 |
39 |
81 |
0 |
0 |
| CDI |
0 |
4 |
42 |
30 |
33 |
164 |
45 |
0 |
| VCDI |
0 |
0 |
29 |
207 |
139 |
854 |
9289 |
19837 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
382 |
239 |
84 |
26 |
13 |
0 |
0 |
| OW |
0 |
53 |
72 |
63 |
50 |
15 |
0 |
0 |
| VODI |
0 |
30 |
54 |
41 |
57 |
37 |
0 |
0 |
| ODI |
0 |
12 |
47 |
21 |
39 |
82 |
0 |
0 |
| CDI |
0 |
3 |
40 |
31 |
28 |
155 |
49 |
0 |
| VCDI |
0 |
0 |
29 |
204 |
140 |
864 |
9285 |
19837 |
|
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 |
0 |
445 |
107 |
60 |
30 |
6 |
0 |
0 |
| OW |
0 |
110 |
90 |
82 |
26 |
28 |
0 |
0 |
| VODI |
0 |
86 |
64 |
82 |
83 |
33 |
0 |
0 |
| ODI |
0 |
46 |
41 |
58 |
49 |
62 |
4 |
0 |
| CDI |
0 |
39 |
45 |
35 |
125 |
178 |
60 |
0 |
| VCDI |
0 |
38 |
224 |
185 |
284 |
1311 |
9457 |
18509 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
461 |
131 |
76 |
34 |
14 |
0 |
0 |
| OW |
0 |
112 |
78 |
73 |
24 |
21 |
0 |
0 |
| VODI |
0 |
66 |
57 |
85 |
80 |
35 |
0 |
0 |
| ODI |
0 |
47 |
44 |
46 |
77 |
55 |
6 |
0 |
| CDI |
0 |
44 |
49 |
32 |
105 |
189 |
69 |
0 |
| VCDI |
0 |
34 |
212 |
190 |
277 |
1304 |
9446 |
18509 |
|
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 |
0 |
341 |
84 |
37 |
11 |
0 |
0 |
0 |
| OW |
0 |
60 |
39 |
104 |
49 |
0 |
0 |
0 |
| VODI |
0 |
54 |
66 |
122 |
91 |
18 |
0 |
0 |
| ODI |
0 |
19 |
31 |
74 |
111 |
58 |
0 |
0 |
| CDI |
0 |
30 |
13 |
65 |
129 |
152 |
29 |
0 |
| VCDI |
0 |
92 |
106 |
319 |
254 |
893 |
8110 |
20521 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
297 |
47 |
79 |
71 |
19 |
0 |
0 |
| OW |
0 |
62 |
73 |
95 |
47 |
14 |
0 |
0 |
| VODI |
0 |
88 |
60 |
88 |
94 |
49 |
1 |
0 |
| ODI |
0 |
43 |
40 |
60 |
86 |
73 |
5 |
0 |
| CDI |
0 |
42 |
23 |
70 |
109 |
161 |
75 |
0 |
| VCDI |
0 |
64 |
96 |
329 |
238 |
805 |
8058 |
20521 |
|
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 |
10 |
276 |
30 |
5 |
4 |
0 |
0 |
0 |
| OW |
0 |
69 |
17 |
14 |
67 |
1 |
0 |
0 |
| VODI |
0 |
34 |
33 |
59 |
132 |
0 |
0 |
0 |
| ODI |
0 |
23 |
31 |
60 |
123 |
16 |
0 |
0 |
| CDI |
0 |
25 |
22 |
76 |
116 |
118 |
13 |
2 |
| VCDI |
0 |
45 |
37 |
119 |
328 |
907 |
6334 |
22936 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10 |
284 |
27 |
5 |
117 |
2 |
0 |
0 |
| OW |
0 |
58 |
24 |
16 |
102 |
15 |
0 |
0 |
| VODI |
0 |
38 |
36 |
78 |
123 |
58 |
4 |
0 |
| ODI |
0 |
39 |
28 |
69 |
58 |
84 |
10 |
0 |
| CDI |
0 |
42 |
34 |
58 |
67 |
187 |
33 |
0 |
| VCDI |
0 |
11 |
21 |
107 |
303 |
696 |
6300 |
22938 |
|
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 |
0 |
238 |
18 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
64 |
3 |
0 |
1 |
12 |
0 |
0 |
| VODI |
0 |
69 |
20 |
2 |
34 |
96 |
3 |
0 |
| ODI |
0 |
29 |
23 |
20 |
33 |
114 |
4 |
0 |
| CDI |
0 |
7 |
18 |
71 |
48 |
141 |
17 |
0 |
| VCDI |
0 |
7 |
49 |
121 |
259 |
941 |
5609 |
24011 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
279 |
20 |
0 |
0 |
81 |
6 |
0 |
| OW |
0 |
56 |
4 |
2 |
19 |
93 |
14 |
0 |
| VODI |
0 |
46 |
19 |
8 |
44 |
153 |
21 |
0 |
| ODI |
0 |
15 |
28 |
32 |
9 |
102 |
27 |
0 |
| CDI |
0 |
8 |
19 |
70 |
49 |
115 |
54 |
14 |
| VCDI |
0 |
10 |
41 |
102 |
254 |
760 |
5511 |
23997 |
|
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