Validation of sea ice concentration - Asian sector
Bulletin date: 2021-04-01
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-03-26:
| 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 |
33 |
5 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
7 |
2 |
14 |
0 |
0 |
0 |
0 |
| VODI |
0 |
10 |
1 |
15 |
7 |
0 |
0 |
0 |
| ODI |
0 |
10 |
0 |
5 |
14 |
0 |
0 |
0 |
| CDI |
0 |
14 |
2 |
4 |
39 |
25 |
0 |
67 |
| VCDI |
0 |
13 |
2 |
70 |
248 |
307 |
2851 |
28315 |
|
...date precedes bulletin
|
Date: 2021-03-28:
| 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 |
31 |
6 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
6 |
0 |
15 |
1 |
0 |
0 |
0 |
| VODI |
0 |
11 |
1 |
13 |
9 |
0 |
0 |
0 |
| ODI |
0 |
7 |
0 |
5 |
17 |
0 |
0 |
0 |
| CDI |
0 |
7 |
2 |
10 |
33 |
32 |
2 |
2 |
| VCDI |
0 |
0 |
1 |
24 |
139 |
283 |
2724 |
28699 |
|
...date precedes bulletin
|
Date: 2021-03-30:
| 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 |
4 |
14 |
1 |
0 |
0 |
0 |
| OW |
0 |
11 |
0 |
16 |
5 |
0 |
0 |
0 |
| VODI |
0 |
11 |
1 |
8 |
13 |
0 |
0 |
0 |
| ODI |
0 |
6 |
0 |
3 |
18 |
0 |
0 |
0 |
| CDI |
0 |
7 |
2 |
19 |
95 |
15 |
21 |
4 |
| VCDI |
0 |
4 |
4 |
33 |
266 |
306 |
3296 |
27866 |
|
...date precedes bulletin
|
Date: 2021-04-01:
| 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 |
22 |
3 |
24 |
1 |
0 |
0 |
0 |
| OW |
0 |
8 |
0 |
8 |
11 |
0 |
0 |
0 |
| VODI |
0 |
11 |
0 |
4 |
16 |
0 |
0 |
0 |
| ODI |
0 |
6 |
2 |
6 |
15 |
9 |
2 |
0 |
| CDI |
0 |
6 |
0 |
18 |
86 |
85 |
35 |
1 |
| VCDI |
0 |
5 |
5 |
78 |
309 |
612 |
5427 |
25267 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
22 |
3 |
26 |
4 |
0 |
0 |
0 |
| OW |
0 |
9 |
0 |
7 |
13 |
0 |
0 |
0 |
| VODI |
0 |
11 |
0 |
4 |
19 |
0 |
0 |
0 |
| ODI |
0 |
5 |
2 |
7 |
29 |
18 |
5 |
0 |
| CDI |
0 |
6 |
0 |
22 |
80 |
122 |
42 |
1 |
| VCDI |
0 |
5 |
5 |
72 |
293 |
566 |
5417 |
25267 |
|
Date: 2021-04-03:
| 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 |
11 |
1 |
29 |
3 |
0 |
0 |
0 |
| OW |
0 |
8 |
0 |
9 |
14 |
0 |
0 |
0 |
| VODI |
0 |
9 |
1 |
5 |
19 |
0 |
0 |
0 |
| ODI |
0 |
6 |
1 |
7 |
19 |
6 |
0 |
0 |
| CDI |
0 |
6 |
1 |
11 |
52 |
140 |
44 |
5 |
| VCDI |
0 |
8 |
2 |
106 |
312 |
571 |
7098 |
23578 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
13 |
1 |
30 |
4 |
0 |
0 |
0 |
| OW |
0 |
8 |
0 |
8 |
15 |
0 |
0 |
0 |
| VODI |
0 |
9 |
1 |
7 |
24 |
0 |
0 |
0 |
| ODI |
0 |
5 |
1 |
8 |
26 |
20 |
7 |
0 |
| CDI |
0 |
7 |
1 |
16 |
55 |
163 |
62 |
3 |
| VCDI |
0 |
6 |
2 |
98 |
295 |
534 |
7073 |
23580 |
|
Date: 2021-04-05:
| 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 |
11 |
2 |
30 |
4 |
0 |
0 |
0 |
| OW |
0 |
9 |
1 |
8 |
12 |
0 |
0 |
0 |
| VODI |
0 |
11 |
0 |
6 |
26 |
0 |
0 |
0 |
| ODI |
0 |
8 |
2 |
6 |
53 |
12 |
0 |
0 |
| CDI |
0 |
7 |
2 |
21 |
75 |
118 |
35 |
10 |
| VCDI |
0 |
8 |
0 |
96 |
273 |
354 |
5493 |
25389 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
10 |
2 |
27 |
5 |
0 |
0 |
0 |
| OW |
0 |
8 |
1 |
9 |
12 |
0 |
0 |
0 |
| VODI |
0 |
12 |
0 |
4 |
25 |
0 |
0 |
0 |
| ODI |
0 |
4 |
2 |
9 |
21 |
20 |
5 |
0 |
| CDI |
0 |
9 |
1 |
8 |
58 |
105 |
77 |
11 |
| VCDI |
0 |
11 |
1 |
110 |
322 |
359 |
5446 |
25388 |
|
Date: 2021-04-07:
| 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 |
20 |
3 |
21 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
1 |
16 |
7 |
0 |
0 |
0 |
| VODI |
0 |
13 |
1 |
10 |
21 |
1 |
0 |
0 |
| ODI |
0 |
7 |
2 |
35 |
56 |
12 |
0 |
0 |
| CDI |
0 |
10 |
1 |
26 |
89 |
77 |
29 |
21 |
| VCDI |
0 |
8 |
1 |
156 |
250 |
442 |
4752 |
25984 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
16 |
3 |
19 |
1 |
0 |
0 |
0 |
| OW |
0 |
8 |
0 |
13 |
8 |
0 |
0 |
0 |
| VODI |
0 |
11 |
1 |
9 |
25 |
1 |
0 |
0 |
| ODI |
0 |
10 |
1 |
8 |
39 |
12 |
0 |
0 |
| CDI |
0 |
9 |
2 |
31 |
72 |
66 |
27 |
8 |
| VCDI |
0 |
14 |
2 |
184 |
278 |
453 |
4754 |
25997 |
|
Date: 2021-04-09:
| 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 |
29 |
2 |
23 |
0 |
0 |
0 |
0 |
| OW |
0 |
18 |
0 |
14 |
6 |
0 |
0 |
0 |
| VODI |
0 |
36 |
4 |
24 |
27 |
0 |
0 |
0 |
| ODI |
0 |
66 |
10 |
63 |
45 |
24 |
0 |
0 |
| CDI |
0 |
37 |
5 |
62 |
112 |
109 |
17 |
0 |
| VCDI |
0 |
72 |
15 |
230 |
312 |
821 |
6668 |
23231 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
19 |
2 |
18 |
1 |
0 |
0 |
0 |
| OW |
0 |
14 |
0 |
18 |
4 |
0 |
0 |
0 |
| VODI |
0 |
19 |
0 |
19 |
30 |
0 |
0 |
0 |
| ODI |
0 |
52 |
7 |
25 |
53 |
17 |
0 |
0 |
| CDI |
0 |
38 |
4 |
45 |
74 |
93 |
19 |
0 |
| VCDI |
0 |
116 |
23 |
291 |
340 |
844 |
6666 |
23231 |
|
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