Validation of sea ice concentration - Asian sector
Bulletin date: 2023-05-11
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-05-05:
| 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 |
156 |
46 |
37 |
0 |
0 |
0 |
0 |
| OW |
0 |
43 |
10 |
50 |
17 |
0 |
0 |
0 |
| VODI |
0 |
29 |
5 |
10 |
11 |
12 |
0 |
0 |
| ODI |
0 |
17 |
2 |
14 |
12 |
39 |
8 |
0 |
| CDI |
0 |
9 |
12 |
18 |
68 |
213 |
92 |
3 |
| VCDI |
0 |
0 |
2 |
33 |
125 |
2021 |
11485 |
17483 |
|
...date precedes bulletin
|
Date: 2023-05-07:
| 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 |
166 |
38 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
31 |
18 |
49 |
18 |
0 |
0 |
0 |
| VODI |
0 |
23 |
6 |
9 |
12 |
9 |
0 |
0 |
| ODI |
0 |
10 |
6 |
14 |
9 |
30 |
1 |
0 |
| CDI |
0 |
1 |
10 |
29 |
65 |
171 |
83 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
120 |
1304 |
11946 |
17855 |
|
...date precedes bulletin
|
Date: 2023-05-09:
| 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 |
293 |
26 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
21 |
7 |
22 |
7 |
0 |
0 |
0 |
| VODI |
0 |
16 |
10 |
8 |
22 |
3 |
0 |
0 |
| ODI |
0 |
6 |
7 |
18 |
18 |
44 |
0 |
0 |
| CDI |
0 |
0 |
6 |
62 |
113 |
326 |
37 |
16 |
| VCDI |
0 |
0 |
0 |
1 |
49 |
1416 |
12247 |
17269 |
|
...date precedes bulletin
|
Date: 2023-05-11:
| 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 |
261 |
44 |
22 |
0 |
0 |
0 |
0 |
| OW |
0 |
16 |
11 |
21 |
9 |
0 |
0 |
0 |
| VODI |
0 |
4 |
14 |
19 |
12 |
8 |
0 |
0 |
| ODI |
0 |
0 |
2 |
21 |
24 |
25 |
0 |
0 |
| CDI |
0 |
0 |
0 |
51 |
134 |
249 |
136 |
22 |
| VCDI |
0 |
0 |
0 |
9 |
62 |
1664 |
12647 |
16595 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
257 |
44 |
35 |
1 |
0 |
0 |
0 |
| OW |
0 |
21 |
13 |
8 |
16 |
1 |
0 |
0 |
| VODI |
0 |
3 |
12 |
22 |
4 |
5 |
0 |
0 |
| ODI |
0 |
0 |
2 |
22 |
31 |
26 |
0 |
0 |
| CDI |
0 |
0 |
0 |
48 |
136 |
264 |
128 |
31 |
| VCDI |
0 |
0 |
0 |
8 |
53 |
1650 |
12655 |
16586 |
|
Date: 2023-05-13:
| 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 |
282 |
28 |
18 |
0 |
0 |
0 |
0 |
| OW |
0 |
28 |
5 |
14 |
18 |
0 |
0 |
0 |
| VODI |
0 |
26 |
4 |
8 |
11 |
3 |
0 |
0 |
| ODI |
0 |
12 |
11 |
13 |
37 |
18 |
53 |
0 |
| CDI |
0 |
8 |
7 |
28 |
146 |
351 |
153 |
9 |
| VCDI |
0 |
0 |
2 |
33 |
110 |
1885 |
11578 |
17183 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
285 |
29 |
26 |
6 |
0 |
0 |
0 |
| OW |
0 |
25 |
5 |
7 |
17 |
1 |
0 |
0 |
| VODI |
0 |
27 |
4 |
9 |
12 |
4 |
0 |
0 |
| ODI |
0 |
12 |
10 |
12 |
38 |
20 |
61 |
0 |
| CDI |
0 |
7 |
7 |
27 |
146 |
350 |
152 |
16 |
| VCDI |
0 |
0 |
2 |
33 |
103 |
1882 |
11571 |
17176 |
|
Date: 2023-05-15:
| 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 |
368 |
20 |
19 |
1 |
0 |
0 |
0 |
| OW |
0 |
29 |
3 |
12 |
12 |
0 |
0 |
0 |
| VODI |
0 |
14 |
16 |
30 |
35 |
4 |
0 |
0 |
| ODI |
0 |
9 |
3 |
24 |
89 |
53 |
15 |
0 |
| CDI |
0 |
2 |
8 |
43 |
168 |
688 |
177 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
1408 |
11000 |
17806 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
312 |
17 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
31 |
2 |
7 |
11 |
0 |
0 |
0 |
| VODI |
0 |
33 |
2 |
20 |
21 |
3 |
0 |
0 |
| ODI |
0 |
23 |
3 |
18 |
61 |
36 |
55 |
0 |
| CDI |
0 |
19 |
15 |
23 |
118 |
254 |
225 |
19 |
| VCDI |
0 |
4 |
11 |
44 |
110 |
1860 |
10912 |
17797 |
|
Date: 2023-05-17:
| 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 |
405 |
15 |
36 |
6 |
0 |
0 |
0 |
| OW |
0 |
21 |
5 |
22 |
11 |
1 |
0 |
0 |
| VODI |
0 |
9 |
13 |
24 |
72 |
0 |
0 |
0 |
| ODI |
0 |
9 |
5 |
25 |
108 |
8 |
20 |
0 |
| CDI |
0 |
6 |
6 |
40 |
274 |
365 |
282 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
216 |
3121 |
11395 |
15558 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
313 |
11 |
19 |
3 |
0 |
0 |
0 |
| OW |
0 |
33 |
0 |
10 |
10 |
0 |
0 |
0 |
| VODI |
0 |
33 |
2 |
27 |
55 |
1 |
27 |
0 |
| ODI |
0 |
35 |
2 |
20 |
103 |
1 |
52 |
0 |
| CDI |
0 |
32 |
20 |
33 |
204 |
103 |
194 |
7 |
| VCDI |
0 |
4 |
9 |
42 |
312 |
3390 |
11424 |
15551 |
|
Date: 2023-05-19:
| 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 |
391 |
31 |
38 |
10 |
0 |
0 |
0 |
| OW |
0 |
24 |
6 |
28 |
32 |
1 |
0 |
0 |
| VODI |
0 |
14 |
11 |
47 |
72 |
4 |
0 |
0 |
| ODI |
0 |
5 |
8 |
34 |
123 |
36 |
5 |
0 |
| CDI |
0 |
6 |
2 |
41 |
281 |
533 |
139 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
323 |
4365 |
12459 |
12996 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
298 |
16 |
24 |
15 |
0 |
0 |
0 |
| OW |
0 |
43 |
3 |
6 |
37 |
0 |
0 |
0 |
| VODI |
0 |
39 |
15 |
25 |
70 |
1 |
39 |
0 |
| ODI |
0 |
31 |
1 |
37 |
91 |
11 |
103 |
0 |
| CDI |
0 |
26 |
20 |
46 |
155 |
261 |
299 |
0 |
| VCDI |
0 |
3 |
3 |
67 |
473 |
4666 |
12162 |
12996 |
|
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