Validation of sea ice concentration - Asian sector
Bulletin date: 2024-05-09
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-05-03:
| 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 |
22 |
127 |
0 |
1 |
1 |
0 |
0 |
0 |
| OW |
0 |
1 |
0 |
13 |
11 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
32 |
47 |
4 |
0 |
0 |
| ODI |
0 |
0 |
0 |
4 |
55 |
11 |
7 |
0 |
| CDI |
0 |
0 |
0 |
2 |
196 |
286 |
140 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
139 |
1605 |
12497 |
17894 |
|
...date precedes bulletin
|
Date: 2024-05-05:
| 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 |
146 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
4 |
0 |
7 |
12 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
5 |
72 |
6 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
73 |
12 |
2 |
0 |
| CDI |
0 |
0 |
0 |
6 |
238 |
381 |
227 |
8 |
| VCDI |
0 |
0 |
0 |
17 |
197 |
1208 |
13255 |
17218 |
|
...date precedes bulletin
|
Date: 2024-05-07:
| 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 |
147 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
0 |
2 |
4 |
1 |
0 |
0 |
| VODI |
0 |
0 |
0 |
21 |
31 |
8 |
1 |
0 |
| ODI |
0 |
0 |
0 |
22 |
148 |
17 |
2 |
0 |
| CDI |
0 |
0 |
0 |
26 |
281 |
340 |
85 |
7 |
| VCDI |
0 |
0 |
0 |
29 |
289 |
1585 |
12844 |
17203 |
|
...date precedes bulletin
|
Date: 2024-05-09:
| 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 |
32 |
115 |
0 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
0 |
17 |
4 |
1 |
0 |
0 |
| VODI |
0 |
0 |
0 |
69 |
27 |
2 |
4 |
0 |
| ODI |
0 |
0 |
0 |
42 |
81 |
20 |
11 |
0 |
| CDI |
0 |
0 |
0 |
25 |
262 |
275 |
149 |
0 |
| VCDI |
0 |
0 |
0 |
41 |
350 |
1867 |
13180 |
16517 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
32 |
118 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
16 |
4 |
1 |
1 |
0 |
| VODI |
0 |
0 |
0 |
63 |
24 |
6 |
4 |
0 |
| ODI |
0 |
0 |
0 |
55 |
84 |
18 |
13 |
0 |
| CDI |
0 |
0 |
0 |
21 |
268 |
317 |
173 |
0 |
| VCDI |
0 |
0 |
0 |
41 |
344 |
1823 |
13153 |
16517 |
|
Date: 2024-05-11:
| 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 |
73 |
76 |
0 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
2 |
0 |
38 |
5 |
0 |
0 |
0 |
| VODI |
0 |
1 |
4 |
98 |
16 |
7 |
2 |
0 |
| ODI |
0 |
0 |
0 |
24 |
57 |
24 |
3 |
0 |
| CDI |
0 |
0 |
0 |
32 |
252 |
392 |
57 |
2 |
| VCDI |
0 |
0 |
0 |
61 |
547 |
1986 |
12093 |
17230 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73 |
77 |
0 |
17 |
1 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
38 |
6 |
1 |
1 |
0 |
| VODI |
0 |
1 |
3 |
86 |
13 |
6 |
1 |
0 |
| ODI |
0 |
1 |
1 |
40 |
53 |
33 |
3 |
0 |
| CDI |
0 |
0 |
0 |
24 |
245 |
430 |
61 |
1 |
| VCDI |
0 |
0 |
0 |
62 |
559 |
1939 |
12089 |
17231 |
|
Date: 2024-05-13:
| 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 |
105 |
45 |
0 |
11 |
0 |
0 |
0 |
0 |
| OW |
0 |
14 |
2 |
46 |
6 |
0 |
0 |
0 |
| VODI |
0 |
2 |
3 |
91 |
26 |
2 |
5 |
0 |
| ODI |
0 |
0 |
0 |
31 |
106 |
16 |
5 |
0 |
| CDI |
0 |
0 |
0 |
104 |
280 |
692 |
54 |
1 |
| VCDI |
0 |
0 |
0 |
55 |
558 |
1494 |
12580 |
16762 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
105 |
45 |
0 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
50 |
11 |
0 |
1 |
0 |
| VODI |
0 |
4 |
0 |
61 |
19 |
3 |
6 |
0 |
| ODI |
0 |
12 |
4 |
32 |
70 |
30 |
4 |
0 |
| CDI |
0 |
0 |
1 |
58 |
258 |
457 |
75 |
7 |
| VCDI |
0 |
0 |
0 |
128 |
618 |
1714 |
12558 |
16756 |
|
Date: 2024-05-15:
| 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 |
150 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
13 |
30 |
8 |
0 |
1 |
0 |
| VODI |
0 |
15 |
7 |
78 |
29 |
3 |
6 |
0 |
| ODI |
0 |
0 |
1 |
40 |
82 |
21 |
4 |
0 |
| CDI |
0 |
0 |
0 |
120 |
340 |
560 |
60 |
1 |
| VCDI |
0 |
0 |
0 |
41 |
543 |
1412 |
10025 |
19489 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
0 |
0 |
1 |
4 |
0 |
0 |
0 |
| OW |
0 |
9 |
9 |
22 |
19 |
2 |
1 |
0 |
| VODI |
0 |
4 |
7 |
53 |
43 |
14 |
5 |
0 |
| ODI |
0 |
17 |
1 |
44 |
72 |
34 |
14 |
0 |
| CDI |
0 |
2 |
4 |
87 |
378 |
476 |
61 |
3 |
| VCDI |
0 |
0 |
0 |
102 |
486 |
1470 |
10015 |
19487 |
|
Date: 2024-05-17:
| 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 |
150 |
1 |
1 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
30 |
18 |
23 |
3 |
0 |
0 |
0 |
| VODI |
0 |
16 |
18 |
53 |
21 |
3 |
5 |
0 |
| ODI |
0 |
1 |
5 |
55 |
43 |
19 |
7 |
0 |
| CDI |
0 |
0 |
0 |
88 |
384 |
578 |
75 |
17 |
| VCDI |
0 |
0 |
0 |
29 |
512 |
1427 |
9927 |
19586 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
1 |
0 |
2 |
17 |
0 |
0 |
0 |
| OW |
0 |
7 |
3 |
23 |
13 |
3 |
4 |
0 |
| VODI |
0 |
10 |
24 |
54 |
29 |
13 |
12 |
1 |
| ODI |
0 |
28 |
9 |
18 |
50 |
39 |
16 |
4 |
| CDI |
0 |
2 |
6 |
105 |
415 |
583 |
137 |
23 |
| VCDI |
0 |
0 |
0 |
47 |
439 |
1389 |
9845 |
19575 |
|
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