Validation of sea ice concentration - Asian sector
Bulletin date: 2024-04-11
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-04-05:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
6 |
6 |
6 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
20 |
3 |
3 |
3 |
0 |
| CDI |
0 |
0 |
4 |
42 |
122 |
112 |
24 |
17 |
| VCDI |
0 |
0 |
0 |
2 |
10 |
118 |
4316 |
27266 |
|
...date precedes bulletin
|
Date: 2024-04-07:
| 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 |
8 |
1 |
1 |
0 |
0 |
0 |
0 |
| ODI |
0 |
11 |
1 |
6 |
3 |
1 |
0 |
0 |
| CDI |
0 |
10 |
10 |
18 |
39 |
156 |
48 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
38 |
588 |
10373 |
20757 |
|
...date precedes bulletin
|
Date: 2024-04-09:
| 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 |
2 |
7 |
1 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
10 |
11 |
0 |
1 |
0 |
| CDI |
0 |
0 |
0 |
16 |
38 |
138 |
117 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
36 |
363 |
13047 |
18291 |
|
...date precedes bulletin
|
Date: 2024-04-11:
| 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 |
2 |
2 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
4 |
6 |
1 |
3 |
0 |
| CDI |
0 |
0 |
0 |
4 |
15 |
109 |
87 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
341 |
12436 |
19057 |
|
|
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 |
1 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
4 |
4 |
1 |
7 |
0 |
| CDI |
0 |
0 |
0 |
4 |
18 |
99 |
92 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
351 |
12427 |
19057 |
|
Date: 2024-04-13:
| 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 |
1 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
4 |
1 |
0 |
0 |
| CDI |
0 |
0 |
2 |
4 |
48 |
125 |
25 |
0 |
| VCDI |
0 |
0 |
1 |
3 |
52 |
547 |
12504 |
18763 |
|
|
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 |
1 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
1 |
2 |
1 |
0 |
0 |
| CDI |
0 |
0 |
2 |
6 |
53 |
130 |
24 |
0 |
| VCDI |
0 |
0 |
1 |
2 |
49 |
542 |
12505 |
18763 |
|
Date: 2024-04-15:
| 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 |
0 |
1 |
3 |
0 |
| CDI |
0 |
0 |
0 |
0 |
7 |
224 |
34 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
341 |
10402 |
21061 |
|
|
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 |
0 |
1 |
3 |
0 |
| CDI |
0 |
0 |
0 |
0 |
7 |
204 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
361 |
10392 |
21061 |
|
Date: 2024-04-17:
| 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 |
1 |
0 |
0 |
0 |
0 |
| ODI |
0 |
1 |
1 |
3 |
2 |
1 |
0 |
0 |
| CDI |
0 |
0 |
1 |
12 |
32 |
188 |
44 |
7 |
| VCDI |
0 |
0 |
0 |
306 |
1481 |
1144 |
10821 |
18037 |
|
|
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 |
2 |
0 |
0 |
0 |
0 |
| ODI |
0 |
1 |
0 |
1 |
2 |
3 |
0 |
0 |
| CDI |
0 |
0 |
2 |
11 |
24 |
192 |
63 |
37 |
| VCDI |
0 |
0 |
0 |
308 |
1489 |
1138 |
10802 |
18007 |
|
Date: 2024-04-19:
| 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 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
1 |
2 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
3 |
7 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
32 |
64 |
210 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
42 |
314 |
9101 |
22292 |
|
|
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 |
1 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
2 |
2 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
15 |
49 |
205 |
5 |
| VCDI |
0 |
0 |
0 |
10 |
65 |
331 |
9106 |
22287 |
|
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