Validation of sea ice concentration - Asian sector
Bulletin date: 2021-02-25
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-02-19:
| 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 |
22 |
8 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
5 |
13 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
4 |
31 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
37 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
45 |
4 |
0 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
53 |
355 |
4463 |
27036 |
|
...date precedes bulletin
|
Date: 2021-02-21:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2021-02-23:
| 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 |
5 |
1 |
20 |
6 |
0 |
0 |
0 |
| OW |
0 |
2 |
1 |
8 |
12 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
8 |
30 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
5 |
27 |
8 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
65 |
6 |
0 |
73 |
| VCDI |
0 |
0 |
0 |
0 |
37 |
199 |
3567 |
27999 |
|
...date precedes bulletin
|
Date: 2021-02-25:
| 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 |
31 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
21 |
2 |
8 |
0 |
0 |
0 |
0 |
| VODI |
0 |
21 |
1 |
21 |
0 |
0 |
0 |
0 |
| ODI |
0 |
19 |
3 |
26 |
8 |
0 |
0 |
0 |
| CDI |
0 |
19 |
0 |
19 |
37 |
6 |
16 |
28 |
| VCDI |
0 |
40 |
5 |
69 |
158 |
391 |
6278 |
24854 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
38 |
0 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
16 |
2 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
21 |
4 |
21 |
2 |
0 |
0 |
0 |
| ODI |
0 |
17 |
0 |
27 |
11 |
0 |
0 |
0 |
| CDI |
0 |
21 |
0 |
16 |
38 |
7 |
19 |
27 |
| VCDI |
0 |
38 |
5 |
68 |
152 |
390 |
6275 |
24855 |
|
Date: 2021-02-27:
| 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 |
33 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
21 |
0 |
0 |
2 |
0 |
0 |
0 |
| VODI |
0 |
24 |
4 |
6 |
8 |
0 |
0 |
0 |
| ODI |
0 |
17 |
2 |
12 |
12 |
0 |
0 |
0 |
| CDI |
0 |
16 |
1 |
11 |
38 |
23 |
3 |
36 |
| VCDI |
0 |
78 |
5 |
93 |
272 |
366 |
6294 |
24705 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
40 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
21 |
1 |
0 |
2 |
0 |
0 |
0 |
| VODI |
0 |
23 |
3 |
11 |
10 |
0 |
0 |
0 |
| ODI |
0 |
14 |
2 |
12 |
15 |
0 |
0 |
0 |
| CDI |
0 |
19 |
1 |
8 |
44 |
23 |
7 |
33 |
| VCDI |
0 |
72 |
5 |
91 |
261 |
366 |
6290 |
24708 |
|
Date: 2021-03-01:
| 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 |
49 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
16 |
2 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
18 |
1 |
14 |
7 |
0 |
0 |
0 |
| ODI |
0 |
14 |
1 |
7 |
31 |
1 |
0 |
0 |
| CDI |
0 |
16 |
0 |
8 |
65 |
55 |
4 |
0 |
| VCDI |
0 |
69 |
7 |
118 |
374 |
654 |
8152 |
22389 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
39 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
13 |
4 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
16 |
1 |
16 |
6 |
0 |
0 |
0 |
| ODI |
0 |
11 |
1 |
6 |
24 |
2 |
0 |
0 |
| CDI |
0 |
16 |
1 |
4 |
63 |
51 |
6 |
0 |
| VCDI |
0 |
87 |
7 |
127 |
384 |
657 |
8150 |
22389 |
|
Date: 2021-03-03:
| 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 |
2 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
13 |
1 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
15 |
0 |
10 |
4 |
0 |
0 |
0 |
| ODI |
0 |
13 |
1 |
9 |
11 |
2 |
0 |
0 |
| CDI |
0 |
11 |
0 |
9 |
70 |
68 |
9 |
0 |
| VCDI |
0 |
93 |
10 |
240 |
387 |
1110 |
7248 |
22697 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
26 |
2 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
8 |
1 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
12 |
0 |
8 |
3 |
0 |
0 |
0 |
| ODI |
0 |
8 |
0 |
8 |
13 |
2 |
0 |
0 |
| CDI |
0 |
10 |
1 |
3 |
53 |
60 |
18 |
3 |
| VCDI |
0 |
120 |
10 |
252 |
403 |
1118 |
7239 |
22694 |
|
Date: 2021-03-05:
| 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 |
25 |
3 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
7 |
0 |
8 |
1 |
0 |
0 |
0 |
| VODI |
0 |
10 |
1 |
7 |
6 |
0 |
0 |
0 |
| ODI |
0 |
12 |
0 |
5 |
8 |
3 |
0 |
0 |
| CDI |
0 |
10 |
1 |
4 |
40 |
59 |
20 |
5 |
| VCDI |
0 |
20 |
6 |
220 |
338 |
917 |
5201 |
25135 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
14 |
2 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
6 |
1 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
8 |
0 |
7 |
3 |
0 |
0 |
0 |
| ODI |
0 |
5 |
1 |
4 |
5 |
0 |
0 |
0 |
| CDI |
0 |
8 |
0 |
5 |
24 |
55 |
22 |
22 |
| VCDI |
0 |
43 |
7 |
229 |
361 |
924 |
5199 |
25118 |
|
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