Validation of sea ice concentration - Asian sector
Bulletin date: 2023-01-12
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
228 |
28 |
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 |
|
...date precedes bulletin
|
Date: 2023-01-08:
| 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 |
222 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
44 |
7 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
50 |
16 |
6 |
0 |
33 |
5 |
0 |
| ODI |
0 |
29 |
19 |
13 |
29 |
104 |
24 |
0 |
| CDI |
0 |
8 |
17 |
50 |
53 |
130 |
87 |
0 |
| VCDI |
0 |
5 |
33 |
78 |
236 |
861 |
5314 |
24607 |
|
...date precedes bulletin
|
Date: 2023-01-10:
| 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 |
275 |
16 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
58 |
7 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
43 |
16 |
5 |
0 |
0 |
0 |
0 |
| ODI |
0 |
19 |
20 |
9 |
6 |
4 |
0 |
0 |
| CDI |
0 |
12 |
37 |
27 |
29 |
106 |
47 |
3 |
| VCDI |
0 |
2 |
27 |
119 |
129 |
530 |
7503 |
23033 |
|
...date precedes bulletin
|
Date: 2023-01-12:
| 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 |
240 |
8 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
10 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
45 |
14 |
8 |
9 |
1 |
0 |
0 |
| ODI |
0 |
21 |
15 |
13 |
4 |
14 |
2 |
0 |
| CDI |
0 |
19 |
16 |
41 |
16 |
42 |
46 |
0 |
| VCDI |
0 |
2 |
63 |
174 |
166 |
574 |
6990 |
23477 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
249 |
9 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
42 |
8 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
39 |
17 |
10 |
7 |
1 |
0 |
0 |
| ODI |
0 |
21 |
14 |
13 |
5 |
15 |
2 |
0 |
| CDI |
0 |
21 |
16 |
33 |
15 |
32 |
45 |
0 |
| VCDI |
0 |
2 |
62 |
182 |
168 |
583 |
6991 |
23477 |
|
Date: 2023-01-14:
| 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 |
0 |
212 |
12 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
46 |
2 |
5 |
1 |
0 |
0 |
0 |
| VODI |
0 |
60 |
3 |
8 |
7 |
2 |
0 |
0 |
| ODI |
0 |
38 |
14 |
0 |
15 |
16 |
0 |
0 |
| CDI |
0 |
32 |
23 |
10 |
8 |
72 |
19 |
0 |
| VCDI |
0 |
70 |
88 |
214 |
202 |
731 |
11627 |
18542 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
222 |
11 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
43 |
5 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
59 |
1 |
8 |
8 |
2 |
0 |
0 |
| ODI |
0 |
33 |
17 |
2 |
13 |
16 |
1 |
0 |
| CDI |
0 |
34 |
21 |
8 |
9 |
68 |
19 |
0 |
| VCDI |
0 |
67 |
87 |
216 |
203 |
735 |
11626 |
18542 |
|
Date: 2023-01-16:
| 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 |
0 |
237 |
32 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
51 |
6 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
63 |
4 |
12 |
17 |
1 |
0 |
0 |
| ODI |
0 |
41 |
7 |
1 |
16 |
29 |
0 |
0 |
| CDI |
0 |
36 |
21 |
8 |
13 |
55 |
14 |
2 |
| VCDI |
0 |
63 |
129 |
151 |
241 |
788 |
7969 |
22065 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
192 |
15 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
49 |
12 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
54 |
10 |
12 |
3 |
0 |
0 |
0 |
| ODI |
0 |
47 |
7 |
4 |
26 |
12 |
5 |
0 |
| CDI |
0 |
60 |
16 |
6 |
15 |
69 |
21 |
3 |
| VCDI |
0 |
89 |
139 |
153 |
243 |
792 |
7957 |
22064 |
|
Date: 2023-01-18:
| 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 |
237 |
25 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
18 |
8 |
0 |
0 |
0 |
0 |
| VODI |
0 |
45 |
18 |
26 |
16 |
2 |
0 |
0 |
| ODI |
0 |
42 |
16 |
2 |
21 |
21 |
0 |
0 |
| CDI |
0 |
55 |
22 |
11 |
48 |
51 |
6 |
10 |
| VCDI |
0 |
94 |
243 |
193 |
400 |
1640 |
7129 |
21636 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
200 |
12 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
64 |
14 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
58 |
16 |
22 |
16 |
7 |
0 |
0 |
| ODI |
0 |
45 |
20 |
14 |
23 |
10 |
0 |
0 |
| CDI |
0 |
53 |
26 |
22 |
64 |
61 |
2 |
9 |
| VCDI |
0 |
100 |
254 |
178 |
382 |
1636 |
7133 |
21637 |
|
Date: 2023-01-20:
| 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 |
79 |
171 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
22 |
48 |
9 |
2 |
0 |
0 |
0 |
| VODI |
0 |
8 |
68 |
21 |
24 |
6 |
0 |
0 |
| ODI |
0 |
16 |
43 |
9 |
33 |
19 |
0 |
0 |
| CDI |
0 |
32 |
51 |
29 |
60 |
87 |
3 |
2 |
| VCDI |
0 |
105 |
159 |
196 |
432 |
1584 |
7396 |
21362 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
81 |
186 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
22 |
64 |
10 |
3 |
0 |
0 |
0 |
| VODI |
0 |
14 |
63 |
32 |
48 |
17 |
0 |
0 |
| ODI |
0 |
15 |
45 |
29 |
58 |
22 |
0 |
0 |
| CDI |
0 |
30 |
42 |
32 |
66 |
143 |
29 |
0 |
| VCDI |
0 |
100 |
140 |
160 |
376 |
1514 |
7370 |
21364 |
|
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