Validation of sea ice concentration - Asian sector
Bulletin date: 2024-01-18
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-01-12:
| 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 |
5 |
4 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
46 |
16 |
31 |
0 |
0 |
0 |
0 |
| VODI |
0 |
38 |
26 |
41 |
2 |
0 |
0 |
0 |
| ODI |
0 |
1 |
5 |
35 |
41 |
7 |
0 |
0 |
| CDI |
0 |
0 |
0 |
11 |
59 |
117 |
86 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
353 |
8543 |
22606 |
|
...date precedes bulletin
|
Date: 2024-01-14:
| 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 |
5 |
1 |
0 |
0 |
0 |
| OW |
0 |
2 |
4 |
20 |
40 |
0 |
0 |
0 |
| VODI |
0 |
35 |
34 |
42 |
18 |
0 |
0 |
0 |
| ODI |
0 |
2 |
4 |
22 |
40 |
5 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
48 |
111 |
55 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
232 |
6366 |
24986 |
|
...date precedes bulletin
|
Date: 2024-01-16:
| 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 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
4 |
20 |
1 |
0 |
0 |
| VODI |
0 |
62 |
34 |
50 |
38 |
5 |
0 |
0 |
| ODI |
0 |
12 |
4 |
14 |
45 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
34 |
70 |
9 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
397 |
8457 |
22798 |
|
...date precedes bulletin
|
Date: 2024-01-18:
| 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 |
12 |
0 |
2 |
9 |
5 |
0 |
0 |
| VODI |
0 |
56 |
28 |
33 |
40 |
19 |
0 |
0 |
| ODI |
0 |
29 |
7 |
24 |
27 |
4 |
1 |
0 |
| CDI |
0 |
8 |
9 |
17 |
31 |
29 |
29 |
0 |
| VCDI |
0 |
11 |
7 |
26 |
45 |
536 |
9788 |
21250 |
|
|
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 |
12 |
0 |
1 |
10 |
6 |
0 |
0 |
| VODI |
0 |
56 |
29 |
41 |
38 |
18 |
0 |
0 |
| ODI |
0 |
33 |
5 |
18 |
29 |
5 |
2 |
0 |
| CDI |
0 |
4 |
10 |
19 |
32 |
32 |
22 |
0 |
| VCDI |
0 |
11 |
7 |
23 |
43 |
532 |
9794 |
21250 |
|
Date: 2024-01-20:
| 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 |
16 |
2 |
0 |
5 |
4 |
0 |
0 |
| VODI |
0 |
59 |
14 |
23 |
35 |
27 |
0 |
0 |
| ODI |
0 |
58 |
20 |
22 |
1 |
5 |
0 |
0 |
| CDI |
0 |
55 |
5 |
12 |
7 |
26 |
13 |
0 |
| VCDI |
0 |
21 |
15 |
33 |
88 |
631 |
12040 |
18845 |
|
|
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 |
15 |
1 |
0 |
5 |
6 |
0 |
0 |
| VODI |
0 |
62 |
22 |
22 |
33 |
25 |
0 |
0 |
| ODI |
0 |
58 |
13 |
23 |
3 |
5 |
0 |
0 |
| CDI |
0 |
61 |
7 |
11 |
8 |
25 |
19 |
0 |
| VCDI |
0 |
13 |
13 |
34 |
87 |
632 |
12034 |
18845 |
|
Date: 2024-01-22:
| 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 |
113 |
5 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
39 |
10 |
10 |
28 |
23 |
0 |
0 |
| ODI |
0 |
20 |
17 |
23 |
7 |
18 |
0 |
0 |
| CDI |
0 |
1 |
3 |
27 |
45 |
83 |
60 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
44 |
469 |
11680 |
19352 |
|
|
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 |
19 |
5 |
5 |
12 |
21 |
0 |
0 |
| VODI |
0 |
44 |
2 |
6 |
16 |
20 |
0 |
0 |
| ODI |
0 |
76 |
9 |
6 |
4 |
0 |
0 |
0 |
| CDI |
0 |
34 |
19 |
40 |
39 |
69 |
64 |
3 |
| VCDI |
0 |
0 |
0 |
8 |
53 |
483 |
11676 |
19349 |
|
Date: 2024-01-24:
| 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 |
71 |
5 |
8 |
0 |
0 |
0 |
0 |
| VODI |
0 |
55 |
9 |
13 |
36 |
10 |
0 |
0 |
| ODI |
0 |
26 |
15 |
22 |
6 |
19 |
4 |
0 |
| CDI |
0 |
2 |
9 |
30 |
48 |
81 |
30 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
254 |
5529 |
25792 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
4 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
16 |
5 |
13 |
27 |
9 |
1 |
0 |
| VODI |
0 |
26 |
4 |
12 |
12 |
13 |
0 |
0 |
| ODI |
0 |
32 |
7 |
9 |
2 |
5 |
0 |
0 |
| CDI |
0 |
64 |
19 |
24 |
24 |
51 |
16 |
1 |
| VCDI |
0 |
12 |
3 |
15 |
32 |
286 |
5546 |
25792 |
|
Date: 2024-01-26:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
28 |
11 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
65 |
16 |
44 |
27 |
4 |
1 |
0 |
| ODI |
0 |
43 |
14 |
15 |
15 |
9 |
1 |
0 |
| CDI |
0 |
56 |
7 |
14 |
18 |
36 |
8 |
0 |
| VCDI |
0 |
41 |
19 |
45 |
58 |
477 |
11640 |
19363 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
5 |
3 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
7 |
4 |
24 |
25 |
1 |
0 |
0 |
| VODI |
0 |
19 |
12 |
21 |
9 |
10 |
1 |
0 |
| ODI |
0 |
40 |
5 |
3 |
11 |
9 |
2 |
0 |
| CDI |
0 |
88 |
15 |
24 |
12 |
17 |
33 |
0 |
| VCDI |
0 |
74 |
28 |
52 |
61 |
489 |
11614 |
19363 |
|
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