Validation of sea ice concentration - Asian sector
Bulletin date: 2024-03-21
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-15:
| 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 |
6 |
6 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
65 |
27 |
33 |
7 |
0 |
0 |
0 |
| VODI |
0 |
50 |
12 |
31 |
8 |
0 |
0 |
0 |
| ODI |
0 |
18 |
5 |
30 |
11 |
0 |
0 |
0 |
| CDI |
0 |
1 |
3 |
25 |
62 |
40 |
25 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
71 |
557 |
11423 |
19550 |
|
...date precedes bulletin
|
Date: 2024-03-17:
| 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 |
40 |
6 |
11 |
0 |
0 |
0 |
0 |
| OW |
0 |
69 |
15 |
9 |
14 |
0 |
0 |
0 |
| VODI |
0 |
73 |
9 |
9 |
14 |
3 |
0 |
0 |
| ODI |
0 |
41 |
7 |
6 |
5 |
2 |
0 |
2 |
| CDI |
0 |
45 |
13 |
32 |
9 |
3 |
5 |
35 |
| VCDI |
0 |
49 |
31 |
83 |
125 |
540 |
10561 |
20216 |
|
...date precedes bulletin
|
Date: 2024-03-19:
| 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 |
31 |
4 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
99 |
19 |
26 |
1 |
0 |
0 |
0 |
| VODI |
0 |
26 |
14 |
31 |
20 |
0 |
0 |
0 |
| ODI |
0 |
16 |
11 |
26 |
22 |
8 |
8 |
0 |
| CDI |
0 |
0 |
5 |
44 |
47 |
35 |
47 |
4 |
| VCDI |
0 |
0 |
0 |
29 |
146 |
567 |
10448 |
20345 |
|
...date precedes bulletin
|
Date: 2024-03-21:
| 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 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
61 |
12 |
23 |
6 |
0 |
0 |
0 |
| VODI |
0 |
23 |
10 |
38 |
12 |
0 |
0 |
0 |
| ODI |
0 |
8 |
7 |
40 |
43 |
5 |
0 |
0 |
| CDI |
0 |
0 |
0 |
9 |
84 |
100 |
64 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
436 |
10245 |
20835 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
6 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
59 |
12 |
23 |
7 |
0 |
0 |
0 |
| VODI |
0 |
25 |
11 |
38 |
11 |
0 |
0 |
0 |
| ODI |
0 |
7 |
7 |
41 |
48 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
8 |
74 |
80 |
62 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
457 |
10247 |
20835 |
|
Date: 2024-03-23:
| 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 |
13 |
9 |
16 |
5 |
0 |
0 |
0 |
| VODI |
0 |
21 |
20 |
31 |
21 |
1 |
0 |
0 |
| ODI |
0 |
5 |
9 |
22 |
69 |
5 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
60 |
121 |
62 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
147 |
6773 |
24667 |
|
|
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 |
14 |
7 |
14 |
4 |
0 |
0 |
0 |
| VODI |
0 |
20 |
21 |
31 |
22 |
1 |
0 |
0 |
| ODI |
0 |
5 |
10 |
26 |
70 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
59 |
105 |
52 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
162 |
6783 |
24667 |
|
Date: 2024-03-25:
| 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 |
2 |
1 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
11 |
6 |
11 |
0 |
0 |
0 |
0 |
| ODI |
0 |
9 |
20 |
48 |
57 |
5 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
83 |
126 |
34 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
149 |
6112 |
25399 |
|
|
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 |
4 |
2 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
12 |
19 |
29 |
15 |
0 |
0 |
0 |
| ODI |
0 |
6 |
6 |
29 |
68 |
16 |
0 |
0 |
| CDI |
0 |
0 |
0 |
6 |
54 |
88 |
77 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
176 |
6069 |
25396 |
|
Date: 2024-03-27:
| 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 |
1 |
1 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
8 |
2 |
7 |
3 |
0 |
0 |
0 |
| ODI |
0 |
4 |
4 |
26 |
24 |
4 |
0 |
0 |
| CDI |
0 |
1 |
3 |
39 |
82 |
92 |
44 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
15 |
231 |
8424 |
23062 |
|
|
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 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
7 |
2 |
11 |
2 |
0 |
0 |
0 |
| ODI |
0 |
7 |
7 |
50 |
48 |
8 |
3 |
0 |
| CDI |
0 |
0 |
0 |
16 |
71 |
76 |
80 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
243 |
8385 |
23062 |
|
Date: 2024-03-29:
| 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 |
5 |
2 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
6 |
6 |
11 |
0 |
0 |
0 |
0 |
| ODI |
0 |
5 |
3 |
14 |
12 |
0 |
0 |
0 |
| CDI |
0 |
2 |
5 |
32 |
76 |
34 |
18 |
1 |
| VCDI |
0 |
6 |
14 |
36 |
30 |
208 |
5663 |
25892 |
|
|
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 |
3 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
9 |
8 |
6 |
0 |
0 |
0 |
0 |
| ODI |
0 |
5 |
8 |
28 |
9 |
0 |
0 |
0 |
| CDI |
0 |
7 |
13 |
53 |
100 |
77 |
44 |
0 |
| VCDI |
0 |
0 |
1 |
7 |
9 |
165 |
5637 |
25893 |
|
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