Validation of sea ice concentration - Asian sector
Bulletin date: 2022-04-28
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-04-22:
| 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 |
11 |
16 |
18 |
0 |
0 |
| OW |
0 |
0 |
0 |
6 |
13 |
25 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
32 |
37 |
3 |
0 |
| ODI |
0 |
0 |
0 |
0 |
35 |
39 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
23 |
99 |
115 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
193 |
987 |
11504 |
18926 |
|
...date precedes bulletin
|
Date: 2022-04-24:
| 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 |
7 |
17 |
18 |
0 |
0 |
0 |
| OW |
0 |
0 |
2 |
17 |
8 |
13 |
0 |
0 |
| VODI |
0 |
0 |
0 |
20 |
17 |
24 |
0 |
0 |
| ODI |
0 |
0 |
0 |
13 |
23 |
26 |
2 |
0 |
| CDI |
0 |
0 |
0 |
0 |
39 |
83 |
15 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
28 |
600 |
11349 |
19761 |
|
...date precedes bulletin
|
Date: 2022-04-26:
| 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 |
3 |
1 |
16 |
10 |
0 |
0 |
0 |
| OW |
0 |
3 |
5 |
10 |
14 |
7 |
0 |
0 |
| VODI |
0 |
2 |
2 |
22 |
15 |
18 |
0 |
0 |
| ODI |
0 |
0 |
0 |
10 |
24 |
25 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
45 |
90 |
80 |
8 |
| VCDI |
0 |
0 |
0 |
0 |
31 |
565 |
14842 |
16233 |
|
...date precedes bulletin
|
Date: 2022-04-28:
| 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 |
7 |
1 |
7 |
12 |
0 |
0 |
0 |
| OW |
0 |
11 |
9 |
2 |
19 |
2 |
0 |
0 |
| VODI |
0 |
4 |
15 |
17 |
18 |
14 |
0 |
0 |
| ODI |
0 |
1 |
7 |
19 |
50 |
35 |
1 |
0 |
| CDI |
0 |
2 |
3 |
17 |
107 |
103 |
114 |
2 |
| VCDI |
0 |
1 |
0 |
29 |
357 |
2826 |
12353 |
15917 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
11 |
1 |
8 |
14 |
0 |
0 |
0 |
| OW |
0 |
6 |
6 |
1 |
18 |
2 |
0 |
0 |
| VODI |
0 |
4 |
16 |
18 |
15 |
12 |
0 |
0 |
| ODI |
0 |
1 |
7 |
20 |
51 |
37 |
1 |
0 |
| CDI |
0 |
3 |
5 |
19 |
106 |
106 |
114 |
2 |
| VCDI |
0 |
1 |
0 |
25 |
359 |
2823 |
12353 |
15917 |
|
Date: 2022-04-30:
| 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 |
11 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
44 |
22 |
7 |
2 |
0 |
0 |
0 |
| VODI |
0 |
14 |
22 |
59 |
17 |
18 |
1 |
0 |
| ODI |
0 |
5 |
7 |
56 |
70 |
22 |
0 |
0 |
| CDI |
0 |
2 |
6 |
51 |
89 |
172 |
76 |
34 |
| VCDI |
0 |
2 |
7 |
134 |
552 |
3309 |
11139 |
16115 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
16 |
16 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
28 |
19 |
9 |
2 |
0 |
0 |
0 |
| VODI |
0 |
16 |
19 |
52 |
11 |
4 |
0 |
0 |
| ODI |
0 |
8 |
9 |
62 |
62 |
26 |
2 |
0 |
| CDI |
0 |
2 |
5 |
51 |
109 |
178 |
73 |
36 |
| VCDI |
0 |
2 |
7 |
132 |
546 |
3313 |
11141 |
16113 |
|
Date: 2022-05-02:
| 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 |
65 |
2 |
14 |
3 |
0 |
0 |
0 |
| OW |
0 |
10 |
15 |
39 |
13 |
3 |
0 |
0 |
| VODI |
0 |
4 |
16 |
64 |
27 |
13 |
3 |
0 |
| ODI |
0 |
1 |
6 |
39 |
88 |
26 |
8 |
0 |
| CDI |
0 |
0 |
0 |
22 |
75 |
213 |
185 |
1 |
| VCDI |
0 |
0 |
0 |
46 |
378 |
2476 |
14093 |
14134 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
16 |
0 |
13 |
4 |
0 |
0 |
0 |
| OW |
0 |
39 |
2 |
19 |
8 |
0 |
0 |
0 |
| VODI |
0 |
24 |
12 |
40 |
15 |
4 |
0 |
0 |
| ODI |
0 |
1 |
13 |
60 |
59 |
21 |
16 |
0 |
| CDI |
0 |
0 |
4 |
24 |
105 |
168 |
225 |
4 |
| VCDI |
0 |
0 |
8 |
68 |
393 |
2538 |
14048 |
14131 |
|
Date: 2022-05-04:
| 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 |
35 |
12 |
13 |
6 |
0 |
0 |
0 |
| OW |
0 |
3 |
5 |
38 |
29 |
1 |
0 |
0 |
| VODI |
0 |
6 |
1 |
21 |
47 |
16 |
4 |
0 |
| ODI |
0 |
1 |
0 |
18 |
75 |
55 |
21 |
0 |
| CDI |
0 |
0 |
0 |
12 |
159 |
310 |
198 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
222 |
2061 |
14367 |
14323 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
2 |
0 |
7 |
10 |
0 |
0 |
0 |
| OW |
0 |
29 |
1 |
8 |
16 |
2 |
0 |
0 |
| VODI |
0 |
9 |
16 |
32 |
20 |
15 |
3 |
0 |
| ODI |
0 |
5 |
1 |
18 |
80 |
67 |
20 |
0 |
| CDI |
0 |
0 |
0 |
12 |
160 |
244 |
156 |
10 |
| VCDI |
0 |
0 |
0 |
48 |
252 |
2115 |
14411 |
14313 |
|
Date: 2022-05-06:
| 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 |
36 |
10 |
6 |
6 |
1 |
0 |
0 |
| OW |
0 |
8 |
8 |
13 |
25 |
17 |
0 |
0 |
| VODI |
0 |
3 |
1 |
13 |
40 |
37 |
7 |
0 |
| ODI |
0 |
0 |
1 |
22 |
49 |
58 |
16 |
0 |
| CDI |
0 |
0 |
9 |
78 |
128 |
223 |
248 |
0 |
| VCDI |
0 |
0 |
0 |
84 |
393 |
2832 |
13379 |
14331 |
|
|
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 |
1 |
8 |
5 |
0 |
0 |
| OW |
0 |
20 |
0 |
1 |
9 |
13 |
0 |
0 |
| VODI |
0 |
23 |
15 |
31 |
36 |
29 |
4 |
0 |
| ODI |
0 |
4 |
13 |
45 |
69 |
40 |
19 |
0 |
| CDI |
0 |
0 |
1 |
85 |
138 |
184 |
257 |
40 |
| VCDI |
0 |
0 |
0 |
53 |
381 |
2897 |
13370 |
14291 |
|
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