Validation of sea ice concentration - Asian sector
Bulletin date: 2022-03-31
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-03-25:
| 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 |
87 |
33 |
25 |
20 |
3 |
0 |
0 |
| OW |
0 |
19 |
17 |
15 |
17 |
0 |
0 |
0 |
| VODI |
0 |
31 |
15 |
13 |
13 |
1 |
0 |
0 |
| ODI |
0 |
23 |
18 |
12 |
38 |
8 |
0 |
0 |
| CDI |
0 |
32 |
16 |
17 |
86 |
80 |
55 |
0 |
| VCDI |
0 |
47 |
61 |
131 |
204 |
1374 |
9359 |
20212 |
|
...date precedes bulletin
|
Date: 2022-03-27:
| 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 |
70 |
23 |
32 |
23 |
3 |
0 |
0 |
| OW |
0 |
17 |
13 |
26 |
21 |
1 |
0 |
0 |
| VODI |
0 |
27 |
9 |
17 |
19 |
0 |
0 |
0 |
| ODI |
0 |
24 |
7 |
18 |
11 |
9 |
0 |
0 |
| CDI |
0 |
31 |
10 |
7 |
37 |
98 |
67 |
2 |
| VCDI |
0 |
64 |
61 |
108 |
125 |
810 |
10156 |
20136 |
|
...date precedes bulletin
|
Date: 2022-03-29:
| 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 |
3 |
83 |
93 |
1 |
0 |
0 |
0 |
| OW |
0 |
4 |
22 |
45 |
4 |
0 |
0 |
0 |
| VODI |
0 |
2 |
23 |
48 |
3 |
0 |
0 |
0 |
| ODI |
0 |
0 |
12 |
39 |
6 |
4 |
5 |
0 |
| CDI |
0 |
0 |
16 |
15 |
42 |
158 |
93 |
0 |
| VCDI |
0 |
3 |
77 |
64 |
85 |
846 |
12245 |
18041 |
|
...date precedes bulletin
|
Date: 2022-03-31:
| 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 |
74 |
39 |
1 |
0 |
0 |
0 |
| OW |
0 |
3 |
28 |
40 |
2 |
0 |
0 |
0 |
| VODI |
0 |
6 |
30 |
29 |
6 |
0 |
0 |
0 |
| ODI |
0 |
6 |
28 |
18 |
18 |
2 |
0 |
0 |
| CDI |
0 |
0 |
8 |
23 |
49 |
87 |
60 |
0 |
| VCDI |
0 |
0 |
35 |
92 |
126 |
1007 |
9706 |
20530 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
29 |
73 |
43 |
1 |
0 |
0 |
0 |
| OW |
0 |
3 |
28 |
37 |
2 |
0 |
0 |
0 |
| VODI |
0 |
7 |
30 |
30 |
7 |
0 |
0 |
0 |
| ODI |
0 |
5 |
27 |
16 |
21 |
4 |
0 |
0 |
| CDI |
0 |
0 |
10 |
23 |
46 |
92 |
66 |
2 |
| VCDI |
0 |
0 |
35 |
92 |
125 |
1000 |
9700 |
20528 |
|
Date: 2022-04-02:
| 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 |
63 |
40 |
24 |
1 |
0 |
0 |
0 |
| OW |
0 |
20 |
12 |
27 |
13 |
0 |
0 |
0 |
| VODI |
0 |
11 |
22 |
23 |
16 |
0 |
0 |
0 |
| ODI |
0 |
7 |
26 |
18 |
29 |
3 |
1 |
0 |
| CDI |
0 |
3 |
7 |
18 |
30 |
90 |
83 |
2 |
| VCDI |
0 |
1 |
15 |
85 |
159 |
985 |
11318 |
18930 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
67 |
35 |
27 |
4 |
0 |
0 |
0 |
| OW |
0 |
14 |
16 |
24 |
12 |
0 |
0 |
0 |
| VODI |
0 |
12 |
22 |
23 |
14 |
0 |
0 |
0 |
| ODI |
0 |
7 |
25 |
18 |
31 |
5 |
1 |
0 |
| CDI |
0 |
4 |
9 |
17 |
33 |
91 |
93 |
2 |
| VCDI |
0 |
1 |
15 |
86 |
154 |
982 |
11308 |
18930 |
|
Date: 2022-04-04:
| 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 |
50 |
36 |
32 |
7 |
0 |
0 |
0 |
| OW |
0 |
2 |
10 |
36 |
28 |
0 |
0 |
0 |
| VODI |
0 |
3 |
3 |
42 |
27 |
9 |
0 |
0 |
| ODI |
0 |
1 |
10 |
22 |
42 |
18 |
2 |
0 |
| CDI |
0 |
0 |
5 |
11 |
36 |
95 |
37 |
0 |
| VCDI |
0 |
0 |
0 |
55 |
125 |
552 |
11088 |
19698 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
49 |
31 |
29 |
2 |
0 |
0 |
0 |
| OW |
0 |
3 |
9 |
28 |
21 |
0 |
0 |
0 |
| VODI |
0 |
3 |
8 |
31 |
25 |
5 |
0 |
0 |
| ODI |
0 |
0 |
5 |
27 |
29 |
12 |
0 |
0 |
| CDI |
0 |
1 |
8 |
21 |
49 |
76 |
87 |
0 |
| VCDI |
0 |
0 |
3 |
62 |
139 |
581 |
11040 |
19698 |
|
Date: 2022-04-06:
| 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 |
43 |
41 |
38 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
22 |
30 |
4 |
0 |
0 |
0 |
| VODI |
0 |
9 |
21 |
36 |
13 |
0 |
0 |
0 |
| ODI |
0 |
14 |
11 |
32 |
27 |
6 |
2 |
0 |
| CDI |
0 |
5 |
12 |
31 |
74 |
68 |
35 |
8 |
| VCDI |
0 |
0 |
1 |
132 |
251 |
830 |
11252 |
19031 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
37 |
30 |
27 |
0 |
0 |
0 |
0 |
| OW |
0 |
7 |
24 |
21 |
2 |
0 |
0 |
0 |
| VODI |
0 |
9 |
22 |
33 |
7 |
0 |
0 |
0 |
| ODI |
0 |
10 |
17 |
37 |
29 |
16 |
5 |
0 |
| CDI |
0 |
11 |
8 |
40 |
62 |
81 |
69 |
1 |
| VCDI |
0 |
0 |
7 |
141 |
269 |
807 |
11215 |
19038 |
|
Date: 2022-04-08:
| 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 |
17 |
45 |
28 |
0 |
0 |
0 |
| OW |
0 |
2 |
9 |
24 |
14 |
0 |
0 |
0 |
| VODI |
0 |
0 |
2 |
43 |
25 |
2 |
0 |
0 |
| ODI |
0 |
0 |
1 |
29 |
27 |
14 |
3 |
0 |
| CDI |
0 |
1 |
5 |
28 |
62 |
94 |
92 |
26 |
| VCDI |
0 |
0 |
0 |
41 |
409 |
1103 |
11342 |
18565 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
25 |
14 |
36 |
17 |
0 |
0 |
0 |
| OW |
0 |
3 |
4 |
23 |
19 |
0 |
0 |
0 |
| VODI |
0 |
2 |
7 |
33 |
25 |
4 |
0 |
0 |
| ODI |
0 |
1 |
2 |
33 |
27 |
25 |
7 |
0 |
| CDI |
0 |
1 |
7 |
27 |
55 |
119 |
90 |
2 |
| VCDI |
0 |
0 |
0 |
58 |
422 |
1065 |
11340 |
18589 |
|
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