Validation of sea ice concentration - Asian sector
Bulletin date: 2022-04-28
Data source: OSI SAF N.H. 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 |
0 |
30 |
15 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
15 |
29 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
28 |
41 |
3 |
0 |
| ODI |
0 |
0 |
0 |
0 |
34 |
34 |
6 |
0 |
| CDI |
0 |
0 |
0 |
0 |
18 |
119 |
100 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
46 |
903 |
10439 |
20222 |
|
...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 |
0 |
19 |
23 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
5 |
27 |
8 |
0 |
0 |
| VODI |
0 |
0 |
0 |
5 |
33 |
23 |
0 |
0 |
| ODI |
0 |
0 |
0 |
6 |
30 |
28 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
49 |
73 |
13 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
33 |
329 |
7466 |
23910 |
|
...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 |
0 |
1 |
3 |
26 |
0 |
0 |
0 |
| OW |
0 |
1 |
1 |
7 |
26 |
4 |
0 |
0 |
| VODI |
0 |
0 |
0 |
7 |
36 |
16 |
0 |
0 |
| ODI |
0 |
0 |
0 |
5 |
32 |
22 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
42 |
101 |
62 |
15 |
| VCDI |
0 |
0 |
0 |
0 |
25 |
307 |
9139 |
22200 |
|
...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 |
8 |
0 |
0 |
18 |
1 |
0 |
0 |
| OW |
0 |
17 |
1 |
4 |
18 |
3 |
0 |
0 |
| VODI |
0 |
15 |
4 |
13 |
30 |
6 |
0 |
0 |
| ODI |
0 |
4 |
2 |
17 |
50 |
40 |
0 |
0 |
| CDI |
0 |
0 |
0 |
15 |
66 |
192 |
28 |
47 |
| VCDI |
0 |
0 |
0 |
7 |
186 |
2903 |
7490 |
20897 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
12 |
0 |
1 |
20 |
1 |
0 |
0 |
| OW |
0 |
9 |
1 |
3 |
18 |
2 |
0 |
0 |
| VODI |
0 |
17 |
2 |
13 |
26 |
7 |
0 |
0 |
| ODI |
0 |
6 |
4 |
17 |
53 |
37 |
0 |
0 |
| CDI |
0 |
0 |
0 |
18 |
63 |
195 |
28 |
51 |
| VCDI |
0 |
0 |
0 |
4 |
188 |
2903 |
7490 |
20893 |
|
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 |
9 |
0 |
14 |
5 |
0 |
0 |
0 |
| OW |
0 |
59 |
2 |
10 |
4 |
0 |
0 |
0 |
| VODI |
0 |
18 |
12 |
40 |
56 |
5 |
0 |
0 |
| ODI |
0 |
1 |
0 |
44 |
100 |
15 |
0 |
0 |
| CDI |
0 |
0 |
0 |
29 |
159 |
182 |
6 |
54 |
| VCDI |
0 |
0 |
0 |
51 |
358 |
3875 |
8952 |
18022 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
24 |
0 |
16 |
5 |
0 |
0 |
0 |
| OW |
0 |
38 |
5 |
11 |
4 |
0 |
0 |
0 |
| VODI |
0 |
24 |
8 |
36 |
31 |
3 |
0 |
0 |
| ODI |
0 |
1 |
1 |
48 |
106 |
13 |
0 |
0 |
| CDI |
0 |
0 |
0 |
21 |
189 |
186 |
6 |
52 |
| VCDI |
0 |
0 |
0 |
56 |
347 |
3875 |
8952 |
18024 |
|
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 |
12 |
5 |
0 |
0 |
0 |
| OW |
0 |
4 |
4 |
59 |
13 |
0 |
0 |
0 |
| VODI |
0 |
1 |
0 |
62 |
61 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
16 |
119 |
31 |
2 |
0 |
| CDI |
0 |
0 |
0 |
9 |
143 |
220 |
51 |
73 |
| VCDI |
0 |
0 |
0 |
0 |
210 |
2872 |
10771 |
17274 |
|
|
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 |
11 |
6 |
0 |
0 |
0 |
| OW |
0 |
36 |
2 |
21 |
9 |
0 |
0 |
0 |
| VODI |
0 |
18 |
2 |
49 |
25 |
1 |
0 |
0 |
| ODI |
0 |
0 |
2 |
40 |
90 |
24 |
4 |
10 |
| CDI |
0 |
0 |
0 |
13 |
165 |
169 |
56 |
127 |
| VCDI |
0 |
0 |
0 |
24 |
256 |
2932 |
10764 |
17210 |
|
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 |
37 |
5 |
8 |
16 |
0 |
0 |
0 |
| OW |
0 |
0 |
2 |
18 |
56 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
22 |
69 |
4 |
0 |
0 |
| ODI |
0 |
0 |
0 |
5 |
80 |
83 |
2 |
0 |
| CDI |
0 |
0 |
0 |
4 |
109 |
434 |
132 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
109 |
2283 |
11233 |
17371 |
|
|
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 |
0 |
17 |
0 |
0 |
0 |
| OW |
0 |
22 |
2 |
6 |
23 |
3 |
0 |
0 |
| VODI |
0 |
13 |
5 |
22 |
36 |
19 |
0 |
0 |
| ODI |
0 |
0 |
0 |
18 |
67 |
91 |
15 |
0 |
| CDI |
0 |
0 |
0 |
0 |
135 |
321 |
116 |
10 |
| VCDI |
0 |
0 |
0 |
11 |
161 |
2370 |
11236 |
17361 |
|
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 |
40 |
5 |
8 |
6 |
0 |
0 |
0 |
| OW |
0 |
1 |
2 |
26 |
39 |
3 |
0 |
0 |
| VODI |
0 |
0 |
0 |
7 |
71 |
23 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
80 |
64 |
2 |
0 |
| CDI |
0 |
0 |
0 |
0 |
157 |
453 |
76 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
202 |
3465 |
10411 |
16941 |
|
|
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 |
12 |
2 |
0 |
0 |
| OW |
0 |
16 |
2 |
2 |
18 |
5 |
0 |
0 |
| VODI |
0 |
25 |
5 |
16 |
64 |
26 |
2 |
0 |
| ODI |
0 |
0 |
0 |
22 |
110 |
53 |
5 |
0 |
| CDI |
0 |
0 |
0 |
1 |
182 |
324 |
154 |
44 |
| VCDI |
0 |
0 |
0 |
0 |
169 |
3598 |
10328 |
16897 |
|
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