Validation of sea ice concentration - Asian sector
Bulletin date: 2024-01-04
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-29:
| 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 |
16 |
238 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
1 |
95 |
6 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
88 |
13 |
16 |
14 |
0 |
0 |
0 |
| ODI |
0 |
42 |
14 |
38 |
158 |
176 |
0 |
0 |
| CDI |
0 |
43 |
9 |
39 |
199 |
332 |
22 |
0 |
| VCDI |
0 |
49 |
39 |
92 |
307 |
887 |
6821 |
22325 |
|
...date precedes bulletin
|
Date: 2023-12-31:
| 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 |
22 |
185 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
120 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
58 |
15 |
4 |
0 |
0 |
0 |
0 |
| ODI |
0 |
53 |
25 |
32 |
27 |
49 |
2 |
0 |
| CDI |
0 |
25 |
31 |
70 |
82 |
226 |
12 |
13 |
| VCDI |
0 |
10 |
8 |
79 |
243 |
1405 |
5100 |
24186 |
|
...date precedes bulletin
|
Date: 2024-01-02:
| 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 |
5 |
283 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
83 |
3 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
35 |
7 |
29 |
16 |
2 |
0 |
0 |
| ODI |
0 |
22 |
12 |
31 |
27 |
11 |
0 |
0 |
| CDI |
0 |
12 |
24 |
87 |
48 |
85 |
4 |
0 |
| VCDI |
0 |
16 |
12 |
75 |
183 |
1563 |
7325 |
22081 |
|
...date precedes bulletin
|
Date: 2024-01-04:
| 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 |
0 |
208 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
67 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
62 |
12 |
9 |
2 |
0 |
0 |
0 |
| ODI |
0 |
18 |
18 |
30 |
7 |
6 |
0 |
0 |
| CDI |
0 |
26 |
4 |
31 |
113 |
229 |
67 |
0 |
| VCDI |
0 |
105 |
29 |
84 |
149 |
1032 |
8535 |
21239 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
207 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
67 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
66 |
14 |
9 |
1 |
0 |
0 |
0 |
| ODI |
0 |
23 |
17 |
32 |
7 |
6 |
0 |
0 |
| CDI |
0 |
30 |
4 |
29 |
113 |
244 |
64 |
0 |
| VCDI |
0 |
93 |
28 |
84 |
150 |
1017 |
8538 |
21239 |
|
Date: 2024-01-06:
| 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 |
119 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
75 |
3 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
77 |
3 |
2 |
0 |
0 |
0 |
0 |
| ODI |
0 |
33 |
22 |
15 |
8 |
0 |
0 |
0 |
| CDI |
0 |
39 |
4 |
43 |
123 |
148 |
37 |
0 |
| VCDI |
0 |
107 |
58 |
114 |
193 |
1834 |
8257 |
20767 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
124 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
73 |
2 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
72 |
1 |
2 |
0 |
0 |
0 |
0 |
| ODI |
0 |
36 |
24 |
19 |
9 |
1 |
0 |
0 |
| CDI |
0 |
57 |
4 |
40 |
130 |
152 |
41 |
0 |
| VCDI |
0 |
88 |
58 |
113 |
185 |
1829 |
8253 |
20767 |
|
Date: 2024-01-08:
| 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 |
0 |
100 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
133 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
54 |
20 |
12 |
0 |
0 |
0 |
0 |
| ODI |
0 |
21 |
14 |
50 |
21 |
0 |
0 |
0 |
| CDI |
0 |
36 |
14 |
33 |
97 |
129 |
15 |
0 |
| VCDI |
0 |
15 |
15 |
68 |
168 |
1500 |
6725 |
22842 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
53 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
81 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
95 |
2 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
48 |
18 |
33 |
6 |
0 |
0 |
0 |
| CDI |
0 |
19 |
10 |
26 |
68 |
32 |
5 |
0 |
| VCDI |
0 |
63 |
33 |
104 |
212 |
1597 |
6735 |
22842 |
|
Date: 2024-01-10:
| 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 |
0 |
45 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
109 |
17 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
73 |
19 |
9 |
0 |
0 |
0 |
0 |
| ODI |
0 |
7 |
9 |
39 |
34 |
0 |
0 |
0 |
| CDI |
0 |
1 |
3 |
14 |
80 |
65 |
20 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
92 |
1075 |
8580 |
21784 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
6 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
84 |
9 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
91 |
18 |
1 |
0 |
0 |
0 |
0 |
| ODI |
0 |
31 |
14 |
32 |
21 |
0 |
0 |
0 |
| CDI |
0 |
23 |
7 |
23 |
72 |
43 |
20 |
4 |
| VCDI |
0 |
0 |
2 |
10 |
113 |
1097 |
8580 |
21780 |
|
Date: 2024-01-12:
| 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 |
0 |
5 |
4 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
46 |
16 |
31 |
0 |
0 |
0 |
0 |
| VODI |
0 |
38 |
26 |
41 |
2 |
0 |
0 |
0 |
| ODI |
0 |
1 |
5 |
35 |
41 |
7 |
0 |
0 |
| CDI |
0 |
0 |
0 |
11 |
59 |
117 |
86 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
353 |
8543 |
22606 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
31 |
21 |
30 |
0 |
0 |
0 |
0 |
| VODI |
0 |
41 |
23 |
53 |
7 |
0 |
0 |
0 |
| ODI |
0 |
3 |
2 |
16 |
23 |
4 |
0 |
0 |
| CDI |
0 |
15 |
4 |
21 |
63 |
79 |
32 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
394 |
8597 |
22604 |
|
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