Validation of sea ice concentration - Asian sector
Bulletin date: 2024-04-18
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-04-12:
| 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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
4 |
5 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
35 |
146 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
614 |
11989 |
19196 |
|
...date precedes bulletin
|
Date: 2024-04-14:
| 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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
3 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
33 |
163 |
5 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
13 |
509 |
10879 |
20469 |
|
...date precedes bulletin
|
Date: 2024-04-16:
| 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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
0 |
3 |
0 |
0 |
| CDI |
0 |
0 |
0 |
6 |
22 |
240 |
24 |
1 |
| VCDI |
0 |
0 |
0 |
3 |
8 |
175 |
8295 |
23304 |
|
...date precedes bulletin
|
Date: 2024-04-18:
| 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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
3 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
3 |
5 |
2 |
1 |
18 |
0 |
| CDI |
0 |
0 |
0 |
23 |
20 |
101 |
162 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
50 |
416 |
5788 |
25487 |
|
|
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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
3 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
3 |
3 |
2 |
1 |
18 |
0 |
| CDI |
0 |
0 |
0 |
23 |
20 |
102 |
159 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
50 |
415 |
5791 |
25487 |
|
Date: 2024-04-20:
| 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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
3 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
11 |
8 |
1 |
0 |
0 |
| CDI |
0 |
0 |
2 |
18 |
41 |
53 |
196 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
59 |
352 |
10438 |
20897 |
|
|
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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
3 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
11 |
7 |
0 |
1 |
0 |
| CDI |
0 |
0 |
2 |
17 |
43 |
57 |
196 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
58 |
349 |
10437 |
20897 |
|
Date: 2024-04-22:
| 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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
1 |
6 |
7 |
4 |
0 |
0 |
0 |
| ODI |
0 |
3 |
2 |
7 |
8 |
6 |
0 |
0 |
| CDI |
0 |
4 |
3 |
11 |
38 |
72 |
15 |
0 |
| VCDI |
0 |
0 |
1 |
7 |
92 |
469 |
12151 |
19175 |
|
|
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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
2 |
2 |
0 |
0 |
0 |
| ODI |
0 |
0 |
4 |
5 |
4 |
5 |
0 |
0 |
| CDI |
0 |
5 |
2 |
6 |
28 |
121 |
77 |
1 |
| VCDI |
0 |
3 |
5 |
19 |
108 |
421 |
12089 |
19174 |
|
Date: 2024-04-24:
| 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 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
2 |
5 |
6 |
0 |
1 |
0 |
0 |
| ODI |
0 |
8 |
1 |
6 |
5 |
16 |
9 |
0 |
| CDI |
0 |
9 |
8 |
24 |
43 |
30 |
25 |
0 |
| VCDI |
0 |
15 |
7 |
22 |
140 |
695 |
13798 |
17207 |
|
|
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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
1 |
2 |
4 |
1 |
0 |
0 |
0 |
| ODI |
0 |
6 |
6 |
5 |
3 |
4 |
1 |
0 |
| CDI |
0 |
10 |
3 |
16 |
70 |
76 |
12 |
0 |
| VCDI |
0 |
17 |
10 |
33 |
114 |
662 |
13819 |
17207 |
|
Date: 2024-04-26:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
| VODI |
0 |
0 |
3 |
3 |
13 |
5 |
0 |
0 |
| ODI |
0 |
12 |
3 |
6 |
16 |
1 |
1 |
0 |
| CDI |
0 |
20 |
17 |
25 |
12 |
7 |
39 |
0 |
| VCDI |
0 |
26 |
24 |
98 |
192 |
510 |
14437 |
16611 |
|
|
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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
13 |
2 |
5 |
4 |
3 |
0 |
0 |
| ODI |
0 |
10 |
11 |
6 |
12 |
1 |
28 |
1 |
| CDI |
0 |
16 |
13 |
62 |
103 |
26 |
55 |
6 |
| VCDI |
0 |
19 |
20 |
58 |
114 |
494 |
14394 |
16604 |
|
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