Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-01
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-01-26:
| 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 |
6 |
10 |
62 |
2 |
0 |
0 |
0 |
| OW |
0 |
13 |
13 |
23 |
17 |
0 |
0 |
0 |
| VODI |
0 |
17 |
10 |
15 |
26 |
0 |
0 |
0 |
| ODI |
0 |
16 |
18 |
0 |
1 |
6 |
1 |
0 |
| CDI |
0 |
30 |
9 |
3 |
4 |
55 |
42 |
68 |
| VCDI |
0 |
37 |
33 |
99 |
103 |
508 |
7461 |
23374 |
|
...date precedes bulletin
|
Date: 2024-01-28:
| 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 |
8 |
7 |
39 |
0 |
0 |
0 |
0 |
| OW |
0 |
16 |
21 |
34 |
10 |
0 |
0 |
0 |
| VODI |
0 |
26 |
10 |
23 |
18 |
0 |
0 |
0 |
| ODI |
0 |
18 |
13 |
0 |
18 |
2 |
4 |
0 |
| CDI |
0 |
39 |
5 |
1 |
23 |
39 |
75 |
28 |
| VCDI |
0 |
75 |
34 |
107 |
138 |
648 |
9483 |
21120 |
|
...date precedes bulletin
|
Date: 2024-01-30:
| 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 |
219 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
108 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
72 |
5 |
12 |
13 |
0 |
0 |
0 |
| ODI |
0 |
64 |
3 |
27 |
44 |
31 |
0 |
0 |
| CDI |
0 |
67 |
10 |
47 |
73 |
108 |
22 |
25 |
| VCDI |
0 |
59 |
36 |
180 |
356 |
1348 |
7846 |
21307 |
|
...date precedes bulletin
|
Date: 2024-02-01:
| 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 |
110 |
143 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
21 |
98 |
0 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
143 |
23 |
41 |
15 |
0 |
0 |
0 |
| ODI |
0 |
102 |
6 |
55 |
68 |
15 |
0 |
0 |
| CDI |
0 |
77 |
9 |
60 |
128 |
124 |
35 |
0 |
| VCDI |
0 |
231 |
95 |
312 |
743 |
2688 |
6836 |
19895 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
123 |
167 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
8 |
95 |
2 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
150 |
21 |
49 |
28 |
0 |
0 |
0 |
| ODI |
0 |
90 |
6 |
50 |
67 |
15 |
0 |
0 |
| CDI |
0 |
73 |
10 |
57 |
144 |
123 |
41 |
0 |
| VCDI |
0 |
219 |
94 |
312 |
715 |
2689 |
6830 |
19895 |
|
Date: 2024-02-03:
| 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 |
150 |
136 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
18 |
97 |
4 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
244 |
10 |
36 |
26 |
2 |
0 |
0 |
| ODI |
0 |
133 |
14 |
71 |
67 |
35 |
0 |
0 |
| CDI |
0 |
86 |
16 |
89 |
93 |
151 |
9 |
20 |
| VCDI |
0 |
268 |
86 |
443 |
928 |
2785 |
5919 |
20142 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
160 |
156 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
8 |
117 |
5 |
8 |
0 |
0 |
0 |
0 |
| VODI |
0 |
256 |
11 |
32 |
24 |
1 |
0 |
0 |
| ODI |
0 |
117 |
17 |
62 |
62 |
33 |
0 |
0 |
| CDI |
0 |
81 |
6 |
101 |
104 |
164 |
9 |
15 |
| VCDI |
0 |
237 |
91 |
440 |
924 |
2775 |
5919 |
20147 |
|
Date: 2024-02-05:
| 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 |
360 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
178 |
27 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
136 |
43 |
136 |
29 |
0 |
0 |
0 |
| ODI |
0 |
22 |
14 |
127 |
66 |
63 |
0 |
0 |
| CDI |
0 |
44 |
21 |
111 |
284 |
341 |
24 |
2 |
| VCDI |
0 |
20 |
18 |
167 |
531 |
2696 |
6454 |
20129 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20 |
188 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
16 |
74 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
152 |
1 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
205 |
30 |
60 |
26 |
5 |
0 |
0 |
| CDI |
0 |
53 |
32 |
93 |
138 |
201 |
29 |
5 |
| VCDI |
0 |
88 |
60 |
391 |
746 |
2894 |
6449 |
20126 |
|
Date: 2024-02-07:
| 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 |
298 |
8 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
51 |
0 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
80 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
143 |
33 |
31 |
25 |
44 |
4 |
0 |
| CDI |
0 |
60 |
12 |
127 |
157 |
228 |
67 |
0 |
| VCDI |
0 |
21 |
19 |
92 |
522 |
1867 |
7540 |
20650 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
144 |
3 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
100 |
5 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
78 |
0 |
1 |
0 |
0 |
0 |
0 |
| ODI |
0 |
70 |
0 |
0 |
0 |
1 |
7 |
0 |
| CDI |
0 |
176 |
18 |
22 |
6 |
99 |
58 |
0 |
| VCDI |
0 |
85 |
46 |
228 |
698 |
2039 |
7546 |
20650 |
|
Date: 2024-02-09:
| 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 |
256 |
32 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
52 |
0 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
60 |
3 |
1 |
0 |
0 |
0 |
0 |
| ODI |
0 |
61 |
3 |
4 |
3 |
33 |
0 |
0 |
| CDI |
0 |
144 |
23 |
63 |
45 |
122 |
54 |
0 |
| VCDI |
0 |
50 |
20 |
132 |
492 |
1787 |
7477 |
21148 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
112 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
70 |
23 |
11 |
0 |
0 |
0 |
0 |
| VODI |
0 |
80 |
8 |
5 |
0 |
4 |
1 |
0 |
| ODI |
0 |
70 |
3 |
2 |
7 |
54 |
3 |
0 |
| CDI |
0 |
106 |
7 |
13 |
19 |
122 |
45 |
6 |
| VCDI |
0 |
185 |
39 |
186 |
514 |
1762 |
7482 |
21142 |
|
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