Validation of sea ice concentration - Asian sector
Bulletin date: 2021-03-25
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-03-19:
| 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 |
2 |
13 |
8 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
6 |
9 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
6 |
11 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
15 |
7 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
21 |
10 |
0 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
38 |
302 |
2020 |
29608 |
|
...date precedes bulletin
|
Date: 2021-03-21:
| 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 |
24 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
2 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
18 |
1 |
10 |
0 |
0 |
0 |
0 |
| ODI |
0 |
16 |
0 |
7 |
3 |
0 |
0 |
0 |
| CDI |
0 |
12 |
3 |
12 |
13 |
4 |
24 |
8 |
| VCDI |
0 |
8 |
5 |
85 |
276 |
445 |
5618 |
25467 |
|
...date precedes bulletin
|
Date: 2021-03-23:
| 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 |
38 |
4 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
13 |
2 |
8 |
0 |
0 |
0 |
0 |
| VODI |
0 |
12 |
1 |
16 |
0 |
0 |
0 |
0 |
| ODI |
0 |
11 |
0 |
11 |
6 |
0 |
0 |
0 |
| CDI |
0 |
15 |
0 |
8 |
32 |
7 |
1 |
16 |
| VCDI |
0 |
52 |
10 |
74 |
264 |
409 |
4950 |
26121 |
|
...date precedes bulletin
|
Date: 2021-03-25:
| 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 |
33 |
5 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
12 |
1 |
12 |
0 |
0 |
0 |
0 |
| VODI |
0 |
10 |
1 |
17 |
1 |
0 |
0 |
0 |
| ODI |
0 |
11 |
1 |
10 |
8 |
0 |
0 |
0 |
| CDI |
0 |
16 |
0 |
6 |
52 |
12 |
3 |
41 |
| VCDI |
0 |
58 |
8 |
74 |
344 |
283 |
3866 |
27196 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
33 |
6 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
0 |
13 |
0 |
0 |
0 |
0 |
| VODI |
0 |
12 |
1 |
16 |
3 |
0 |
0 |
0 |
| ODI |
0 |
9 |
1 |
8 |
12 |
0 |
0 |
0 |
| CDI |
0 |
17 |
0 |
4 |
61 |
11 |
2 |
46 |
| VCDI |
0 |
59 |
8 |
73 |
329 |
284 |
3867 |
27191 |
|
Date: 2021-03-27:
| 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 |
31 |
6 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
6 |
1 |
16 |
0 |
0 |
0 |
0 |
| VODI |
0 |
10 |
0 |
16 |
4 |
0 |
0 |
0 |
| ODI |
0 |
7 |
1 |
9 |
13 |
0 |
0 |
0 |
| CDI |
0 |
12 |
0 |
10 |
34 |
22 |
0 |
14 |
| VCDI |
0 |
3 |
3 |
57 |
259 |
245 |
2837 |
28462 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
32 |
5 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
7 |
2 |
18 |
3 |
0 |
0 |
0 |
| VODI |
0 |
9 |
0 |
16 |
5 |
0 |
0 |
0 |
| ODI |
0 |
8 |
1 |
8 |
14 |
0 |
0 |
0 |
| CDI |
0 |
10 |
0 |
10 |
37 |
22 |
0 |
10 |
| VCDI |
0 |
3 |
3 |
57 |
251 |
245 |
2837 |
28466 |
|
Date: 2021-03-29:
| 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 |
36 |
4 |
11 |
0 |
0 |
0 |
0 |
| OW |
0 |
9 |
1 |
14 |
7 |
0 |
0 |
0 |
| VODI |
0 |
9 |
0 |
13 |
11 |
0 |
0 |
0 |
| ODI |
0 |
4 |
0 |
10 |
33 |
1 |
0 |
0 |
| CDI |
0 |
2 |
2 |
19 |
89 |
61 |
0 |
0 |
| VCDI |
0 |
0 |
1 |
20 |
185 |
239 |
2823 |
28478 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
30 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
11 |
3 |
11 |
2 |
0 |
0 |
0 |
| VODI |
0 |
11 |
1 |
18 |
8 |
0 |
0 |
0 |
| ODI |
0 |
5 |
0 |
10 |
12 |
0 |
0 |
0 |
| CDI |
0 |
3 |
2 |
13 |
32 |
21 |
0 |
0 |
| VCDI |
0 |
0 |
1 |
35 |
271 |
280 |
2823 |
28478 |
|
Date: 2021-03-31:
| 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 |
28 |
3 |
20 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
1 |
8 |
10 |
0 |
0 |
0 |
| VODI |
0 |
13 |
0 |
5 |
15 |
0 |
0 |
0 |
| ODI |
0 |
6 |
1 |
4 |
17 |
8 |
0 |
0 |
| CDI |
0 |
10 |
0 |
13 |
89 |
59 |
18 |
16 |
| VCDI |
0 |
10 |
1 |
65 |
283 |
440 |
4793 |
26136 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
31 |
2 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
12 |
2 |
14 |
3 |
0 |
0 |
0 |
| VODI |
0 |
11 |
0 |
17 |
9 |
0 |
0 |
0 |
| ODI |
0 |
10 |
1 |
4 |
20 |
6 |
0 |
0 |
| CDI |
0 |
8 |
0 |
19 |
86 |
52 |
14 |
37 |
| VCDI |
0 |
5 |
1 |
59 |
296 |
449 |
4797 |
26115 |
|
Date: 2021-04-02:
| 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 |
11 |
1 |
32 |
5 |
0 |
0 |
0 |
| OW |
0 |
8 |
0 |
5 |
14 |
0 |
0 |
0 |
| VODI |
0 |
9 |
1 |
6 |
14 |
0 |
0 |
0 |
| ODI |
0 |
4 |
2 |
7 |
18 |
10 |
4 |
0 |
| CDI |
0 |
7 |
0 |
16 |
80 |
110 |
39 |
4 |
| VCDI |
0 |
4 |
3 |
106 |
316 |
645 |
6571 |
24030 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
14 |
1 |
19 |
0 |
0 |
0 |
0 |
| OW |
0 |
8 |
1 |
15 |
2 |
0 |
0 |
0 |
| VODI |
0 |
9 |
2 |
13 |
15 |
0 |
0 |
0 |
| ODI |
0 |
5 |
0 |
7 |
52 |
7 |
1 |
0 |
| CDI |
0 |
6 |
1 |
14 |
105 |
157 |
34 |
7 |
| VCDI |
0 |
1 |
2 |
104 |
273 |
601 |
6579 |
24027 |
|
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