Validation of sea ice concentration - Asian sector
Bulletin date: 2022-03-24
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-03-18:
| 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 |
241 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
72 |
3 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
77 |
12 |
2 |
0 |
0 |
0 |
0 |
| ODI |
0 |
63 |
18 |
36 |
30 |
17 |
7 |
0 |
| CDI |
0 |
63 |
27 |
37 |
93 |
115 |
143 |
0 |
| VCDI |
0 |
332 |
121 |
178 |
323 |
1759 |
14745 |
13568 |
|
...date precedes bulletin
|
Date: 2022-03-20:
| 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 |
165 |
24 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
46 |
17 |
11 |
0 |
0 |
0 |
0 |
| VODI |
0 |
53 |
10 |
24 |
3 |
1 |
0 |
0 |
| ODI |
0 |
60 |
16 |
32 |
25 |
6 |
1 |
0 |
| CDI |
0 |
74 |
24 |
66 |
96 |
118 |
76 |
32 |
| VCDI |
0 |
232 |
115 |
191 |
293 |
1649 |
13147 |
15473 |
|
...date precedes bulletin
|
Date: 2022-03-22:
| 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 |
121 |
89 |
25 |
7 |
0 |
0 |
0 |
| OW |
0 |
32 |
31 |
14 |
4 |
2 |
0 |
0 |
| VODI |
0 |
38 |
92 |
26 |
5 |
4 |
0 |
0 |
| ODI |
0 |
4 |
119 |
76 |
12 |
6 |
2 |
0 |
| CDI |
0 |
16 |
91 |
104 |
97 |
140 |
59 |
0 |
| VCDI |
0 |
26 |
55 |
131 |
209 |
1697 |
14202 |
14546 |
|
...date precedes bulletin
|
Date: 2022-03-24:
| 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 |
103 |
36 |
28 |
17 |
1 |
0 |
0 |
| OW |
0 |
25 |
8 |
27 |
9 |
0 |
0 |
0 |
| VODI |
0 |
34 |
15 |
17 |
11 |
2 |
0 |
0 |
| ODI |
0 |
40 |
7 |
43 |
28 |
9 |
1 |
0 |
| CDI |
0 |
62 |
27 |
25 |
76 |
89 |
64 |
2 |
| VCDI |
0 |
70 |
72 |
135 |
242 |
1617 |
8983 |
20157 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
109 |
37 |
32 |
21 |
1 |
0 |
0 |
| OW |
0 |
22 |
10 |
24 |
6 |
0 |
0 |
0 |
| VODI |
0 |
35 |
13 |
20 |
10 |
2 |
0 |
0 |
| ODI |
0 |
43 |
7 |
48 |
39 |
9 |
1 |
0 |
| CDI |
0 |
60 |
31 |
28 |
72 |
101 |
71 |
0 |
| VCDI |
0 |
65 |
67 |
123 |
235 |
1605 |
8976 |
20159 |
|
Date: 2022-03-26:
| 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 |
68 |
40 |
28 |
21 |
3 |
0 |
0 |
| OW |
0 |
14 |
16 |
24 |
18 |
0 |
0 |
0 |
| VODI |
0 |
21 |
10 |
23 |
17 |
1 |
0 |
0 |
| ODI |
0 |
18 |
15 |
21 |
20 |
12 |
1 |
0 |
| CDI |
0 |
26 |
15 |
12 |
61 |
108 |
54 |
1 |
| VCDI |
0 |
46 |
50 |
125 |
167 |
1223 |
11228 |
18575 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
71 |
43 |
36 |
25 |
3 |
0 |
0 |
| OW |
0 |
14 |
15 |
22 |
14 |
0 |
0 |
0 |
| VODI |
0 |
24 |
12 |
18 |
18 |
2 |
0 |
0 |
| ODI |
0 |
19 |
15 |
24 |
28 |
23 |
1 |
0 |
| CDI |
0 |
35 |
24 |
19 |
53 |
113 |
58 |
0 |
| VCDI |
0 |
30 |
37 |
114 |
166 |
1206 |
11224 |
18576 |
|
Date: 2022-03-28:
| 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 |
107 |
67 |
26 |
0 |
0 |
0 |
| OW |
0 |
8 |
22 |
39 |
9 |
0 |
0 |
0 |
| VODI |
0 |
7 |
30 |
23 |
11 |
0 |
0 |
0 |
| ODI |
0 |
10 |
17 |
17 |
26 |
7 |
2 |
0 |
| CDI |
0 |
3 |
16 |
7 |
17 |
135 |
64 |
1 |
| VCDI |
0 |
41 |
62 |
62 |
86 |
718 |
12612 |
17825 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
2 |
92 |
48 |
25 |
0 |
0 |
0 |
| OW |
0 |
3 |
23 |
36 |
9 |
0 |
0 |
0 |
| VODI |
0 |
6 |
23 |
32 |
11 |
0 |
0 |
0 |
| ODI |
0 |
11 |
21 |
19 |
17 |
8 |
4 |
0 |
| CDI |
0 |
15 |
35 |
21 |
23 |
124 |
68 |
2 |
| VCDI |
0 |
37 |
60 |
59 |
90 |
728 |
12606 |
17824 |
|
Date: 2022-03-30:
| 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 |
84 |
71 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
23 |
46 |
1 |
0 |
0 |
0 |
| VODI |
0 |
0 |
30 |
40 |
6 |
0 |
0 |
0 |
| ODI |
0 |
1 |
21 |
42 |
4 |
2 |
2 |
0 |
| CDI |
0 |
0 |
8 |
35 |
39 |
100 |
114 |
2 |
| VCDI |
0 |
3 |
57 |
77 |
109 |
884 |
11332 |
18949 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
78 |
65 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
17 |
46 |
2 |
0 |
0 |
0 |
| VODI |
0 |
0 |
33 |
35 |
5 |
0 |
0 |
0 |
| ODI |
0 |
1 |
24 |
43 |
9 |
3 |
5 |
0 |
| CDI |
0 |
0 |
14 |
42 |
35 |
116 |
115 |
0 |
| VCDI |
0 |
3 |
57 |
80 |
108 |
867 |
11328 |
18951 |
|
Date: 2022-04-01:
| 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 |
61 |
51 |
28 |
0 |
0 |
0 |
0 |
| OW |
0 |
9 |
20 |
40 |
5 |
0 |
0 |
0 |
| VODI |
0 |
3 |
29 |
26 |
14 |
0 |
0 |
0 |
| ODI |
0 |
6 |
16 |
29 |
23 |
6 |
0 |
0 |
| CDI |
0 |
2 |
5 |
21 |
48 |
93 |
74 |
6 |
| VCDI |
0 |
0 |
19 |
95 |
195 |
1010 |
11177 |
18971 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
57 |
48 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
12 |
17 |
31 |
0 |
0 |
0 |
0 |
| VODI |
0 |
2 |
28 |
38 |
7 |
0 |
0 |
0 |
| ODI |
0 |
4 |
16 |
22 |
15 |
1 |
0 |
0 |
| CDI |
0 |
6 |
12 |
33 |
46 |
66 |
62 |
7 |
| VCDI |
0 |
0 |
19 |
99 |
217 |
1042 |
11189 |
18970 |
|
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