Validation of sea ice concentration - Asian sector
Bulletin date: 2024-01-04
Data source: OSI SAF N.H. multi-product 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 |
13 |
326 |
19 |
2 |
0 |
0 |
0 |
0 |
| OW |
1 |
95 |
7 |
20 |
0 |
0 |
0 |
0 |
| VODI |
0 |
57 |
24 |
41 |
19 |
5 |
0 |
0 |
| ODI |
0 |
28 |
17 |
62 |
152 |
199 |
0 |
0 |
| CDI |
0 |
28 |
8 |
54 |
246 |
353 |
8 |
0 |
| VCDI |
0 |
21 |
28 |
106 |
351 |
906 |
5138 |
24762 |
|
...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 |
15 |
272 |
17 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
128 |
3 |
6 |
1 |
0 |
0 |
0 |
| VODI |
0 |
41 |
16 |
34 |
2 |
0 |
0 |
0 |
| ODI |
0 |
24 |
24 |
71 |
45 |
44 |
0 |
0 |
| CDI |
0 |
4 |
11 |
108 |
129 |
216 |
2 |
16 |
| VCDI |
0 |
0 |
0 |
83 |
280 |
1494 |
4270 |
25731 |
|
...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 |
0 |
361 |
16 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
76 |
7 |
17 |
6 |
0 |
0 |
0 |
| VODI |
0 |
20 |
11 |
40 |
39 |
0 |
0 |
0 |
| ODI |
0 |
8 |
18 |
41 |
42 |
4 |
0 |
0 |
| CDI |
0 |
0 |
9 |
110 |
78 |
89 |
2 |
2 |
| VCDI |
0 |
0 |
0 |
81 |
217 |
1719 |
4057 |
26002 |
|
...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 |
259 |
11 |
43 |
6 |
0 |
0 |
0 |
| OW |
0 |
46 |
12 |
15 |
9 |
0 |
0 |
0 |
| VODI |
0 |
14 |
23 |
50 |
23 |
0 |
0 |
0 |
| ODI |
0 |
7 |
6 |
50 |
35 |
4 |
0 |
0 |
| CDI |
0 |
14 |
9 |
41 |
173 |
214 |
42 |
13 |
| VCDI |
0 |
29 |
25 |
124 |
229 |
1185 |
6570 |
23815 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
257 |
12 |
42 |
6 |
0 |
0 |
0 |
| OW |
0 |
46 |
12 |
16 |
6 |
0 |
0 |
0 |
| VODI |
0 |
19 |
22 |
50 |
26 |
0 |
0 |
0 |
| ODI |
0 |
7 |
9 |
57 |
35 |
3 |
0 |
0 |
| CDI |
0 |
15 |
9 |
38 |
178 |
212 |
51 |
12 |
| VCDI |
0 |
25 |
22 |
120 |
224 |
1188 |
6561 |
23816 |
|
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 |
177 |
14 |
35 |
0 |
0 |
0 |
0 |
| OW |
0 |
77 |
3 |
7 |
8 |
0 |
0 |
0 |
| VODI |
0 |
37 |
27 |
27 |
18 |
0 |
0 |
0 |
| ODI |
0 |
5 |
16 |
54 |
20 |
1 |
0 |
0 |
| CDI |
0 |
6 |
12 |
78 |
174 |
129 |
3 |
22 |
| VCDI |
0 |
14 |
29 |
180 |
303 |
1891 |
6759 |
22970 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
182 |
14 |
31 |
0 |
0 |
0 |
0 |
| OW |
0 |
71 |
7 |
11 |
6 |
0 |
0 |
0 |
| VODI |
0 |
39 |
21 |
23 |
17 |
0 |
0 |
0 |
| ODI |
0 |
4 |
19 |
62 |
22 |
0 |
0 |
0 |
| CDI |
0 |
12 |
18 |
82 |
179 |
131 |
6 |
24 |
| VCDI |
0 |
8 |
22 |
172 |
299 |
1890 |
6756 |
22968 |
|
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 |
155 |
13 |
21 |
0 |
0 |
0 |
0 |
| OW |
0 |
124 |
15 |
13 |
0 |
0 |
0 |
0 |
| VODI |
0 |
21 |
26 |
48 |
8 |
0 |
0 |
0 |
| ODI |
0 |
4 |
6 |
75 |
44 |
0 |
0 |
0 |
| CDI |
0 |
0 |
3 |
83 |
128 |
129 |
5 |
0 |
| VCDI |
0 |
0 |
0 |
64 |
201 |
1594 |
5322 |
24994 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
105 |
13 |
19 |
0 |
0 |
0 |
0 |
| OW |
0 |
89 |
0 |
14 |
0 |
0 |
0 |
0 |
| VODI |
0 |
80 |
11 |
16 |
7 |
0 |
0 |
0 |
| ODI |
0 |
25 |
26 |
48 |
30 |
0 |
0 |
0 |
| CDI |
0 |
4 |
9 |
46 |
90 |
22 |
6 |
1 |
| VCDI |
0 |
1 |
4 |
161 |
254 |
1701 |
5321 |
24993 |
|
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 |
82 |
11 |
34 |
0 |
0 |
0 |
0 |
| OW |
0 |
112 |
18 |
14 |
9 |
0 |
0 |
0 |
| VODI |
0 |
15 |
29 |
61 |
16 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
60 |
45 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
138 |
48 |
5 |
9 |
| VCDI |
0 |
0 |
0 |
0 |
82 |
1111 |
5676 |
25514 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
39 |
11 |
39 |
0 |
0 |
0 |
0 |
| OW |
0 |
97 |
0 |
5 |
9 |
0 |
0 |
0 |
| VODI |
0 |
62 |
33 |
23 |
21 |
0 |
0 |
0 |
| ODI |
0 |
11 |
13 |
63 |
27 |
0 |
0 |
0 |
| CDI |
0 |
0 |
1 |
44 |
112 |
35 |
12 |
5 |
| VCDI |
0 |
0 |
0 |
2 |
121 |
1124 |
5669 |
25518 |
|
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 |
42 |
19 |
20 |
0 |
0 |
0 |
0 |
| OW |
0 |
29 |
25 |
60 |
0 |
0 |
0 |
0 |
| VODI |
0 |
2 |
5 |
115 |
3 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
45 |
73 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
98 |
160 |
2 |
24 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
287 |
3579 |
28491 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
39 |
15 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
11 |
20 |
64 |
0 |
0 |
0 |
0 |
| VODI |
0 |
22 |
12 |
109 |
9 |
0 |
0 |
0 |
| ODI |
0 |
1 |
1 |
25 |
44 |
0 |
0 |
0 |
| CDI |
0 |
0 |
1 |
28 |
117 |
88 |
2 |
8 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
360 |
3579 |
28507 |
|
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