Validation of sea ice concentration - Asian sector
Bulletin date: 2022-03-31
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-03-25:
| 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 |
107 |
8 |
41 |
12 |
0 |
0 |
0 |
| OW |
0 |
34 |
7 |
17 |
10 |
0 |
0 |
0 |
| VODI |
0 |
34 |
4 |
24 |
11 |
0 |
0 |
0 |
| ODI |
0 |
31 |
0 |
18 |
38 |
12 |
0 |
0 |
| CDI |
0 |
50 |
0 |
12 |
65 |
97 |
62 |
0 |
| VCDI |
0 |
92 |
10 |
86 |
226 |
1057 |
7301 |
22616 |
|
...date precedes bulletin
|
Date: 2022-03-27:
| 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 |
92 |
7 |
34 |
18 |
0 |
0 |
0 |
| OW |
0 |
36 |
5 |
25 |
12 |
0 |
0 |
0 |
| VODI |
0 |
36 |
2 |
25 |
9 |
0 |
0 |
0 |
| ODI |
0 |
31 |
1 |
10 |
25 |
2 |
0 |
0 |
| CDI |
0 |
34 |
2 |
9 |
43 |
91 |
65 |
8 |
| VCDI |
0 |
93 |
10 |
85 |
153 |
649 |
6224 |
24246 |
|
...date precedes bulletin
|
Date: 2022-03-29:
| 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 |
120 |
5 |
55 |
0 |
0 |
0 |
0 |
| OW |
0 |
40 |
7 |
26 |
2 |
0 |
0 |
0 |
| VODI |
0 |
32 |
2 |
42 |
0 |
0 |
0 |
0 |
| ODI |
0 |
25 |
0 |
25 |
6 |
5 |
5 |
0 |
| CDI |
0 |
22 |
1 |
5 |
54 |
144 |
73 |
25 |
| VCDI |
0 |
44 |
8 |
65 |
123 |
727 |
7447 |
22947 |
|
...date precedes bulletin
|
Date: 2022-03-31:
| 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 |
123 |
10 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
35 |
3 |
35 |
0 |
0 |
0 |
0 |
| VODI |
0 |
27 |
3 |
39 |
2 |
0 |
0 |
0 |
| ODI |
0 |
21 |
2 |
28 |
19 |
2 |
0 |
0 |
| CDI |
0 |
14 |
0 |
11 |
51 |
82 |
59 |
10 |
| VCDI |
0 |
32 |
6 |
54 |
130 |
944 |
6326 |
24004 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
124 |
10 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
34 |
2 |
34 |
0 |
0 |
0 |
0 |
| VODI |
0 |
27 |
4 |
39 |
4 |
0 |
0 |
0 |
| ODI |
0 |
18 |
2 |
27 |
21 |
5 |
0 |
0 |
| CDI |
0 |
15 |
0 |
11 |
48 |
92 |
58 |
15 |
| VCDI |
0 |
34 |
6 |
54 |
129 |
931 |
6327 |
23999 |
|
Date: 2022-04-02:
| 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 |
119 |
2 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
33 |
6 |
32 |
1 |
0 |
0 |
0 |
| VODI |
0 |
26 |
5 |
31 |
10 |
0 |
0 |
0 |
| ODI |
0 |
19 |
3 |
27 |
20 |
12 |
3 |
0 |
| CDI |
0 |
7 |
3 |
15 |
44 |
70 |
78 |
16 |
| VCDI |
0 |
15 |
6 |
56 |
157 |
792 |
7236 |
23231 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
119 |
1 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
31 |
7 |
26 |
2 |
0 |
0 |
0 |
| VODI |
0 |
28 |
5 |
28 |
10 |
0 |
0 |
0 |
| ODI |
0 |
16 |
3 |
29 |
27 |
8 |
4 |
0 |
| CDI |
0 |
9 |
3 |
16 |
42 |
76 |
89 |
14 |
| VCDI |
0 |
16 |
6 |
56 |
151 |
790 |
7224 |
23233 |
|
Date: 2022-04-04:
| 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 |
74 |
4 |
44 |
3 |
0 |
0 |
0 |
| OW |
0 |
10 |
3 |
43 |
20 |
0 |
0 |
0 |
| VODI |
0 |
5 |
2 |
49 |
28 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
29 |
46 |
19 |
1 |
0 |
| CDI |
0 |
0 |
0 |
12 |
40 |
78 |
41 |
13 |
| VCDI |
0 |
0 |
0 |
19 |
142 |
427 |
6269 |
24661 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
68 |
4 |
39 |
0 |
0 |
0 |
0 |
| OW |
0 |
12 |
1 |
37 |
11 |
0 |
0 |
0 |
| VODI |
0 |
9 |
2 |
35 |
26 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
31 |
29 |
11 |
0 |
0 |
| CDI |
0 |
0 |
0 |
25 |
53 |
68 |
82 |
14 |
| VCDI |
0 |
0 |
0 |
29 |
160 |
445 |
6229 |
24660 |
|
Date: 2022-04-06:
| 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 |
114 |
2 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
36 |
0 |
22 |
1 |
0 |
0 |
0 |
| VODI |
0 |
36 |
7 |
32 |
4 |
0 |
0 |
0 |
| ODI |
0 |
23 |
5 |
32 |
23 |
8 |
1 |
0 |
| CDI |
0 |
10 |
3 |
31 |
78 |
77 |
26 |
8 |
| VCDI |
0 |
0 |
0 |
78 |
240 |
825 |
7437 |
22917 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
89 |
1 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
42 |
2 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
38 |
4 |
26 |
3 |
0 |
0 |
0 |
| ODI |
0 |
31 |
6 |
30 |
22 |
21 |
4 |
0 |
| CDI |
0 |
19 |
2 |
32 |
74 |
87 |
57 |
1 |
| VCDI |
0 |
0 |
2 |
99 |
247 |
802 |
7403 |
22924 |
|
Date: 2022-04-08:
| 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 |
39 |
4 |
76 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
3 |
31 |
14 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
41 |
31 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
24 |
38 |
11 |
1 |
0 |
| CDI |
0 |
0 |
0 |
31 |
42 |
146 |
62 |
27 |
| VCDI |
0 |
0 |
0 |
12 |
160 |
1522 |
8907 |
20859 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
35 |
2 |
55 |
0 |
0 |
0 |
0 |
| OW |
0 |
5 |
1 |
30 |
13 |
0 |
0 |
0 |
| VODI |
0 |
0 |
4 |
33 |
34 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
34 |
24 |
35 |
2 |
0 |
| CDI |
0 |
0 |
0 |
31 |
32 |
167 |
67 |
4 |
| VCDI |
0 |
0 |
0 |
32 |
182 |
1477 |
8901 |
20882 |
|
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