Validation of sea ice concentration - Asian sector
Bulletin date: 2024-12-12
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-06:
| 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 |
1318 |
32 |
28 |
7 |
2 |
0 |
0 |
| OW |
0 |
192 |
62 |
84 |
31 |
7 |
0 |
0 |
| VODI |
0 |
58 |
40 |
167 |
137 |
35 |
0 |
0 |
| ODI |
0 |
4 |
7 |
70 |
209 |
159 |
6 |
0 |
| CDI |
0 |
0 |
0 |
16 |
163 |
654 |
356 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
51 |
1031 |
11115 |
16041 |
|
...date precedes bulletin
|
Date: 2024-12-08:
| 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 |
1 |
1252 |
8 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
299 |
40 |
30 |
11 |
0 |
0 |
0 |
| VODI |
0 |
133 |
71 |
185 |
30 |
0 |
0 |
0 |
| ODI |
0 |
23 |
18 |
109 |
244 |
9 |
0 |
0 |
| CDI |
0 |
0 |
5 |
28 |
298 |
442 |
137 |
14 |
| VCDI |
0 |
0 |
0 |
1 |
89 |
630 |
7140 |
20831 |
|
...date precedes bulletin
|
Date: 2024-12-10:
| 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 |
106 |
1243 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
5 |
353 |
62 |
26 |
0 |
0 |
0 |
0 |
| VODI |
1 |
63 |
59 |
165 |
74 |
1 |
0 |
0 |
| ODI |
0 |
8 |
13 |
55 |
149 |
80 |
5 |
0 |
| CDI |
0 |
1 |
4 |
11 |
50 |
447 |
97 |
1 |
| VCDI |
0 |
0 |
0 |
2 |
9 |
442 |
6011 |
22539 |
|
...date precedes bulletin
|
Date: 2024-12-12:
| 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 |
2 |
1170 |
27 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
210 |
60 |
103 |
32 |
1 |
0 |
0 |
| VODI |
0 |
53 |
38 |
110 |
131 |
48 |
0 |
0 |
| ODI |
0 |
5 |
4 |
45 |
97 |
116 |
0 |
0 |
| CDI |
0 |
1 |
0 |
12 |
78 |
297 |
49 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
9 |
618 |
7605 |
21153 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2 |
1299 |
47 |
46 |
2 |
0 |
0 |
0 |
| OW |
0 |
122 |
66 |
114 |
63 |
7 |
0 |
0 |
| VODI |
0 |
17 |
15 |
99 |
144 |
101 |
0 |
0 |
| ODI |
0 |
1 |
1 |
16 |
94 |
127 |
5 |
0 |
| CDI |
0 |
0 |
0 |
3 |
42 |
315 |
82 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
530 |
7567 |
21151 |
|
Date: 2024-12-14:
| 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 |
1 |
926 |
26 |
20 |
2 |
0 |
0 |
0 |
| OW |
0 |
128 |
41 |
91 |
100 |
2 |
0 |
0 |
| VODI |
0 |
29 |
33 |
66 |
141 |
135 |
0 |
0 |
| ODI |
0 |
7 |
3 |
33 |
78 |
172 |
29 |
0 |
| CDI |
0 |
0 |
0 |
6 |
58 |
187 |
218 |
9 |
| VCDI |
0 |
0 |
0 |
0 |
22 |
362 |
12908 |
16249 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
1018 |
53 |
65 |
37 |
0 |
0 |
0 |
| OW |
0 |
52 |
38 |
79 |
124 |
15 |
0 |
0 |
| VODI |
0 |
18 |
9 |
59 |
127 |
204 |
2 |
0 |
| ODI |
0 |
2 |
3 |
12 |
75 |
146 |
54 |
0 |
| CDI |
0 |
0 |
0 |
1 |
28 |
179 |
211 |
16 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
314 |
12888 |
16242 |
|
Date: 2024-12-16:
| 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 |
1 |
810 |
14 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
137 |
21 |
29 |
0 |
0 |
0 |
0 |
| VODI |
0 |
81 |
67 |
86 |
37 |
3 |
0 |
0 |
| ODI |
0 |
4 |
11 |
68 |
128 |
28 |
1 |
0 |
| CDI |
0 |
0 |
0 |
16 |
152 |
320 |
45 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
49 |
517 |
12304 |
17147 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
873 |
33 |
41 |
12 |
2 |
0 |
0 |
| OW |
0 |
97 |
42 |
70 |
80 |
27 |
0 |
0 |
| VODI |
0 |
56 |
31 |
57 |
128 |
128 |
18 |
0 |
| ODI |
0 |
6 |
7 |
34 |
81 |
161 |
105 |
0 |
| CDI |
0 |
0 |
0 |
3 |
54 |
180 |
200 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
370 |
12027 |
17141 |
|
Date: 2024-12-18:
| 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 |
776 |
7 |
1 |
1 |
0 |
0 |
0 |
| OW |
0 |
169 |
13 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
88 |
55 |
50 |
12 |
1 |
0 |
0 |
| ODI |
0 |
20 |
17 |
95 |
66 |
12 |
1 |
0 |
| CDI |
0 |
7 |
9 |
23 |
156 |
317 |
286 |
0 |
| VCDI |
0 |
7 |
9 |
24 |
36 |
517 |
11500 |
17800 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
789 |
21 |
13 |
1 |
0 |
0 |
0 |
| OW |
0 |
164 |
32 |
51 |
25 |
8 |
0 |
0 |
| VODI |
0 |
82 |
33 |
86 |
111 |
89 |
14 |
0 |
| ODI |
0 |
20 |
10 |
31 |
67 |
141 |
171 |
0 |
| CDI |
0 |
12 |
11 |
11 |
51 |
187 |
322 |
3 |
| VCDI |
0 |
0 |
3 |
8 |
16 |
422 |
11280 |
17797 |
|
Date: 2024-12-20:
| 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 |
676 |
7 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
183 |
23 |
24 |
0 |
0 |
0 |
0 |
| VODI |
0 |
107 |
41 |
63 |
14 |
2 |
0 |
0 |
| ODI |
0 |
21 |
52 |
99 |
46 |
40 |
0 |
0 |
| CDI |
0 |
11 |
11 |
79 |
209 |
354 |
282 |
0 |
| VCDI |
0 |
8 |
3 |
10 |
50 |
575 |
8685 |
20403 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
562 |
19 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
238 |
19 |
25 |
7 |
0 |
0 |
0 |
| VODI |
0 |
153 |
52 |
82 |
78 |
39 |
0 |
0 |
| ODI |
0 |
32 |
35 |
86 |
103 |
201 |
48 |
0 |
| CDI |
0 |
13 |
7 |
42 |
87 |
215 |
200 |
0 |
| VCDI |
0 |
8 |
5 |
18 |
44 |
516 |
8719 |
20403 |
|
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