Validation of sea ice concentration - Asian sector
Bulletin date: 2022-04-21
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-04-15:
| 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 |
1 |
0 |
50 |
56 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
17 |
41 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
16 |
46 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
7 |
63 |
16 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
48 |
86 |
17 |
5 |
| VCDI |
0 |
0 |
0 |
25 |
124 |
1400 |
7776 |
22279 |
|
...date precedes bulletin
|
Date: 2022-04-17:
| 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 |
68 |
26 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
19 |
28 |
8 |
0 |
0 |
| VODI |
0 |
0 |
0 |
7 |
41 |
12 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
48 |
25 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
64 |
146 |
70 |
13 |
| VCDI |
0 |
0 |
0 |
0 |
57 |
1301 |
9374 |
20775 |
|
...date precedes bulletin
|
Date: 2022-04-19:
| 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 |
59 |
14 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
21 |
28 |
5 |
0 |
0 |
| VODI |
0 |
0 |
0 |
10 |
46 |
16 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
56 |
55 |
8 |
0 |
| CDI |
0 |
0 |
0 |
0 |
49 |
136 |
135 |
11 |
| VCDI |
0 |
0 |
0 |
0 |
99 |
855 |
11007 |
19470 |
|
...date precedes bulletin
|
Date: 2022-04-21:
| 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 |
28 |
24 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
7 |
31 |
6 |
0 |
0 |
| VODI |
0 |
0 |
0 |
16 |
36 |
22 |
0 |
0 |
| ODI |
0 |
0 |
0 |
8 |
36 |
27 |
3 |
0 |
| CDI |
0 |
0 |
0 |
0 |
43 |
159 |
110 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
86 |
1215 |
11016 |
19207 |
|
|
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 |
28 |
28 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
7 |
29 |
10 |
0 |
0 |
| VODI |
0 |
0 |
0 |
20 |
41 |
24 |
0 |
0 |
| ODI |
0 |
0 |
0 |
4 |
41 |
21 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
45 |
138 |
87 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
72 |
1236 |
11042 |
19207 |
|
Date: 2022-04-23:
| 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 |
28 |
17 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
11 |
25 |
7 |
0 |
0 |
| VODI |
0 |
0 |
0 |
3 |
42 |
20 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
47 |
26 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
52 |
94 |
11 |
13 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
516 |
7471 |
23686 |
|
|
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 |
29 |
21 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
10 |
22 |
12 |
0 |
0 |
| VODI |
0 |
0 |
0 |
3 |
52 |
19 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
43 |
22 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
57 |
75 |
8 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
535 |
7474 |
23689 |
|
Date: 2022-04-25:
| 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 |
21 |
12 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
18 |
22 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
12 |
41 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
49 |
23 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
51 |
74 |
6 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
20 |
324 |
5917 |
25478 |
|
|
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 |
20 |
19 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
6 |
28 |
8 |
0 |
0 |
| VODI |
0 |
0 |
0 |
18 |
25 |
18 |
0 |
0 |
| ODI |
0 |
0 |
0 |
8 |
36 |
19 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
53 |
38 |
9 |
17 |
| VCDI |
0 |
0 |
0 |
0 |
34 |
347 |
5914 |
25465 |
|
Date: 2022-04-27:
| 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 |
1 |
2 |
1 |
18 |
0 |
0 |
0 |
| OW |
0 |
4 |
1 |
4 |
24 |
1 |
0 |
0 |
| VODI |
0 |
2 |
2 |
8 |
30 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
16 |
37 |
20 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
59 |
134 |
78 |
12 |
| VCDI |
0 |
0 |
0 |
0 |
37 |
729 |
9603 |
21245 |
|
|
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 |
31 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
26 |
6 |
0 |
0 |
| VODI |
0 |
4 |
2 |
4 |
25 |
21 |
0 |
0 |
| ODI |
0 |
3 |
3 |
12 |
23 |
28 |
0 |
0 |
| CDI |
0 |
0 |
0 |
18 |
52 |
93 |
110 |
33 |
| VCDI |
0 |
0 |
0 |
0 |
48 |
745 |
9571 |
21224 |
|
Date: 2022-04-29:
| 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 |
5 |
0 |
18 |
6 |
0 |
0 |
0 |
| OW |
0 |
35 |
1 |
21 |
4 |
0 |
0 |
0 |
| VODI |
0 |
16 |
4 |
44 |
27 |
2 |
0 |
0 |
| ODI |
0 |
1 |
2 |
51 |
62 |
32 |
0 |
0 |
| CDI |
0 |
0 |
0 |
42 |
78 |
236 |
23 |
2 |
| VCDI |
0 |
0 |
0 |
73 |
253 |
3784 |
9068 |
18192 |
|
|
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 |
22 |
8 |
0 |
0 |
0 |
| OW |
0 |
3 |
0 |
22 |
5 |
0 |
0 |
0 |
| VODI |
0 |
44 |
2 |
40 |
12 |
3 |
0 |
0 |
| ODI |
0 |
10 |
5 |
44 |
52 |
24 |
1 |
0 |
| CDI |
0 |
0 |
0 |
60 |
92 |
168 |
57 |
17 |
| VCDI |
0 |
0 |
0 |
61 |
261 |
3859 |
9033 |
18177 |
|
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