Validation of sea ice concentration - Asian sector
Bulletin date: 2024-04-04
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-29:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
5 |
2 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
6 |
6 |
11 |
0 |
0 |
0 |
0 |
| ODI |
0 |
5 |
3 |
14 |
12 |
0 |
0 |
0 |
| CDI |
0 |
2 |
5 |
32 |
76 |
34 |
18 |
1 |
| VCDI |
0 |
6 |
14 |
36 |
30 |
208 |
5663 |
25892 |
|
...date precedes bulletin
|
Date: 2024-03-31:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
11 |
4 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
17 |
7 |
13 |
4 |
0 |
0 |
0 |
| ODI |
0 |
12 |
0 |
7 |
14 |
0 |
0 |
0 |
| CDI |
0 |
36 |
6 |
11 |
26 |
38 |
23 |
0 |
| VCDI |
0 |
48 |
33 |
56 |
40 |
273 |
10778 |
20625 |
|
...date precedes bulletin
|
Date: 2024-04-02:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
15 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
25 |
5 |
5 |
0 |
0 |
0 |
0 |
| ODI |
0 |
7 |
11 |
14 |
6 |
0 |
0 |
0 |
| CDI |
0 |
8 |
20 |
56 |
66 |
68 |
6 |
7 |
| VCDI |
0 |
0 |
1 |
5 |
29 |
209 |
4382 |
27137 |
|
...date precedes bulletin
|
Date: 2024-04-04:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
9 |
9 |
2 |
0 |
0 |
0 |
0 |
| ODI |
0 |
2 |
5 |
19 |
5 |
5 |
2 |
0 |
| CDI |
0 |
1 |
3 |
47 |
116 |
105 |
24 |
17 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
116 |
4349 |
27237 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
9 |
9 |
3 |
0 |
0 |
0 |
0 |
| ODI |
0 |
2 |
5 |
18 |
3 |
4 |
1 |
0 |
| CDI |
0 |
1 |
3 |
47 |
118 |
105 |
31 |
25 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
117 |
4343 |
27229 |
|
Date: 2024-04-06:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
7 |
4 |
2 |
0 |
0 |
0 |
0 |
| ODI |
0 |
5 |
7 |
5 |
4 |
1 |
0 |
0 |
| CDI |
0 |
1 |
11 |
44 |
120 |
102 |
21 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
27 |
295 |
7142 |
24280 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
7 |
7 |
2 |
0 |
0 |
0 |
0 |
| ODI |
0 |
6 |
4 |
8 |
3 |
1 |
0 |
0 |
| CDI |
0 |
0 |
11 |
41 |
121 |
97 |
20 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
27 |
300 |
7143 |
24280 |
|
Date: 2024-04-08:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
6 |
3 |
7 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
6 |
15 |
7 |
0 |
0 |
0 |
| CDI |
0 |
0 |
2 |
17 |
59 |
195 |
72 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
42 |
440 |
14314 |
16896 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
4 |
5 |
7 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
6 |
32 |
73 |
167 |
62 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
35 |
468 |
14324 |
16896 |
|
Date: 2024-04-10:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
1 |
2 |
4 |
2 |
0 |
0 |
0 |
| ODI |
0 |
1 |
1 |
4 |
9 |
1 |
0 |
0 |
| CDI |
0 |
0 |
1 |
6 |
29 |
115 |
46 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
259 |
11594 |
19989 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
2 |
2 |
4 |
3 |
1 |
23 |
1 |
| CDI |
0 |
0 |
2 |
9 |
26 |
81 |
32 |
17 |
| VCDI |
0 |
0 |
0 |
1 |
19 |
293 |
11585 |
19981 |
|
Date: 2024-04-12:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
4 |
5 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
35 |
146 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
614 |
11989 |
19196 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
7 |
0 |
| ODI |
0 |
0 |
0 |
0 |
2 |
6 |
20 |
0 |
| CDI |
0 |
0 |
0 |
5 |
37 |
67 |
56 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
45 |
691 |
11950 |
19196 |
|
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