Validation of sea ice concentration - Asian sector
Bulletin date: 2021-03-04
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-02-26:
| 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 |
34 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
1 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
26 |
1 |
13 |
3 |
0 |
0 |
0 |
| ODI |
0 |
17 |
5 |
13 |
11 |
0 |
0 |
0 |
| CDI |
0 |
18 |
1 |
24 |
35 |
27 |
9 |
40 |
| VCDI |
0 |
67 |
7 |
73 |
240 |
336 |
5765 |
25296 |
|
...date precedes bulletin
|
Date: 2021-02-28:
| 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 |
34 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
23 |
0 |
0 |
1 |
0 |
0 |
0 |
| VODI |
0 |
21 |
5 |
6 |
5 |
0 |
0 |
0 |
| ODI |
0 |
17 |
2 |
14 |
15 |
0 |
0 |
0 |
| CDI |
0 |
16 |
1 |
10 |
35 |
20 |
35 |
3 |
| VCDI |
0 |
81 |
6 |
93 |
304 |
443 |
7531 |
23361 |
|
...date precedes bulletin
|
Date: 2021-03-02:
| 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 |
45 |
3 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
12 |
0 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
18 |
1 |
13 |
6 |
0 |
0 |
0 |
| ODI |
0 |
14 |
1 |
3 |
19 |
0 |
0 |
0 |
| CDI |
0 |
13 |
0 |
14 |
81 |
62 |
4 |
0 |
| VCDI |
0 |
83 |
9 |
174 |
429 |
1190 |
7847 |
22033 |
|
...date precedes bulletin
|
Date: 2021-03-04:
| 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 |
31 |
3 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
12 |
0 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
11 |
1 |
9 |
3 |
0 |
0 |
0 |
| ODI |
0 |
11 |
0 |
11 |
3 |
3 |
0 |
0 |
| CDI |
0 |
11 |
1 |
8 |
56 |
73 |
17 |
0 |
| VCDI |
0 |
56 |
8 |
241 |
348 |
1029 |
6217 |
23907 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
34 |
2 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
1 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
15 |
1 |
11 |
2 |
0 |
0 |
0 |
| ODI |
0 |
10 |
0 |
13 |
4 |
5 |
0 |
0 |
| CDI |
0 |
7 |
1 |
6 |
55 |
67 |
16 |
0 |
| VCDI |
0 |
56 |
8 |
241 |
349 |
1033 |
6218 |
23907 |
|
Date: 2021-03-06:
| 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 |
18 |
2 |
16 |
1 |
0 |
0 |
0 |
| OW |
0 |
5 |
1 |
4 |
4 |
0 |
0 |
0 |
| VODI |
0 |
9 |
0 |
5 |
8 |
0 |
0 |
0 |
| ODI |
0 |
12 |
1 |
7 |
8 |
2 |
0 |
0 |
| CDI |
0 |
7 |
2 |
4 |
32 |
28 |
27 |
26 |
| VCDI |
0 |
10 |
3 |
232 |
345 |
696 |
4926 |
25641 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
18 |
2 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
8 |
1 |
3 |
4 |
0 |
0 |
0 |
| VODI |
0 |
14 |
1 |
9 |
8 |
0 |
0 |
0 |
| ODI |
0 |
5 |
2 |
4 |
9 |
2 |
0 |
0 |
| CDI |
0 |
6 |
0 |
6 |
33 |
27 |
28 |
25 |
| VCDI |
0 |
10 |
3 |
230 |
344 |
697 |
4925 |
25642 |
|
Date: 2021-03-08:
| 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 |
2 |
12 |
5 |
0 |
0 |
0 |
| OW |
0 |
10 |
0 |
2 |
7 |
0 |
0 |
0 |
| VODI |
0 |
7 |
1 |
7 |
12 |
2 |
0 |
0 |
| ODI |
0 |
1 |
1 |
14 |
8 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
31 |
36 |
13 |
28 |
1 |
| VCDI |
0 |
0 |
0 |
105 |
293 |
474 |
5653 |
25329 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
17 |
1 |
10 |
3 |
0 |
0 |
0 |
| OW |
0 |
7 |
1 |
1 |
5 |
0 |
0 |
0 |
| VODI |
0 |
12 |
0 |
4 |
9 |
0 |
0 |
0 |
| ODI |
0 |
6 |
1 |
7 |
7 |
3 |
0 |
0 |
| CDI |
0 |
0 |
1 |
13 |
8 |
22 |
31 |
9 |
| VCDI |
0 |
0 |
0 |
136 |
329 |
468 |
5650 |
25321 |
|
Date: 2021-03-10:
| 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 |
1 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
13 |
1 |
5 |
1 |
0 |
0 |
0 |
| VODI |
0 |
11 |
4 |
12 |
2 |
0 |
0 |
0 |
| ODI |
0 |
7 |
1 |
8 |
9 |
0 |
0 |
0 |
| CDI |
0 |
6 |
0 |
5 |
17 |
38 |
51 |
112 |
| VCDI |
0 |
10 |
2 |
52 |
155 |
578 |
8933 |
22010 |
|
|
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 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
12 |
1 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
14 |
2 |
5 |
1 |
0 |
0 |
0 |
| ODI |
0 |
8 |
2 |
8 |
2 |
0 |
0 |
0 |
| CDI |
0 |
10 |
1 |
7 |
6 |
15 |
16 |
67 |
| VCDI |
0 |
20 |
3 |
61 |
175 |
601 |
8968 |
22055 |
|
Date: 2021-03-12:
| 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 |
29 |
0 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
11 |
2 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
16 |
1 |
7 |
2 |
0 |
0 |
0 |
| ODI |
0 |
9 |
2 |
12 |
4 |
0 |
0 |
0 |
| CDI |
0 |
6 |
0 |
7 |
10 |
82 |
51 |
82 |
| VCDI |
0 |
9 |
3 |
47 |
171 |
651 |
8480 |
22381 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
18 |
0 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
14 |
0 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
12 |
2 |
5 |
2 |
0 |
0 |
0 |
| ODI |
0 |
11 |
1 |
8 |
2 |
0 |
0 |
0 |
| CDI |
0 |
12 |
1 |
8 |
6 |
11 |
31 |
15 |
| VCDI |
0 |
13 |
4 |
52 |
177 |
722 |
8500 |
22448 |
|
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