Validation of sea ice concentration - Asian sector
Bulletin date: 2023-03-09
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-03-03:
| 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 |
0 |
324 |
18 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
48 |
2 |
3 |
5 |
0 |
0 |
0 |
| VODI |
0 |
69 |
6 |
4 |
7 |
2 |
0 |
0 |
| ODI |
0 |
165 |
9 |
17 |
2 |
7 |
1 |
0 |
| CDI |
0 |
41 |
52 |
43 |
22 |
30 |
94 |
0 |
| VCDI |
0 |
27 |
52 |
170 |
186 |
525 |
9927 |
20219 |
|
...date precedes bulletin
|
Date: 2023-03-05:
| 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 |
244 |
15 |
22 |
11 |
2 |
0 |
0 |
| OW |
0 |
35 |
2 |
4 |
10 |
6 |
0 |
0 |
| VODI |
0 |
30 |
6 |
3 |
5 |
7 |
0 |
0 |
| ODI |
0 |
21 |
15 |
5 |
3 |
5 |
2 |
0 |
| CDI |
0 |
24 |
38 |
16 |
8 |
42 |
37 |
5 |
| VCDI |
0 |
39 |
46 |
119 |
244 |
695 |
10980 |
19336 |
|
...date precedes bulletin
|
Date: 2023-03-07:
| 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 |
235 |
17 |
19 |
15 |
2 |
0 |
0 |
| OW |
0 |
28 |
5 |
7 |
15 |
4 |
0 |
0 |
| VODI |
0 |
23 |
11 |
9 |
10 |
11 |
0 |
0 |
| ODI |
0 |
15 |
9 |
9 |
3 |
6 |
1 |
0 |
| CDI |
0 |
9 |
12 |
16 |
9 |
12 |
9 |
10 |
| VCDI |
0 |
6 |
32 |
80 |
218 |
409 |
8829 |
21977 |
|
...date precedes bulletin
|
Date: 2023-03-09:
| 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 |
0 |
131 |
134 |
24 |
5 |
0 |
0 |
0 |
| OW |
0 |
12 |
29 |
13 |
14 |
2 |
0 |
0 |
| VODI |
0 |
7 |
35 |
4 |
17 |
6 |
0 |
0 |
| ODI |
0 |
9 |
25 |
5 |
9 |
10 |
2 |
0 |
| CDI |
0 |
12 |
33 |
13 |
16 |
39 |
78 |
7 |
| VCDI |
0 |
44 |
105 |
166 |
175 |
677 |
8974 |
21250 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
128 |
137 |
30 |
5 |
0 |
0 |
0 |
| OW |
0 |
14 |
26 |
7 |
12 |
2 |
0 |
0 |
| VODI |
0 |
8 |
36 |
4 |
19 |
5 |
0 |
0 |
| ODI |
0 |
7 |
23 |
5 |
8 |
10 |
2 |
0 |
| CDI |
0 |
14 |
32 |
12 |
18 |
34 |
74 |
3 |
| VCDI |
0 |
44 |
107 |
167 |
174 |
683 |
8978 |
21254 |
|
Date: 2023-03-11:
| 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 |
0 |
220 |
32 |
41 |
7 |
0 |
0 |
0 |
| OW |
0 |
48 |
2 |
14 |
8 |
4 |
0 |
0 |
| VODI |
0 |
52 |
4 |
6 |
17 |
6 |
3 |
0 |
| ODI |
0 |
37 |
3 |
3 |
5 |
9 |
7 |
0 |
| CDI |
0 |
42 |
2 |
8 |
12 |
27 |
43 |
3 |
| VCDI |
0 |
195 |
67 |
123 |
135 |
533 |
9447 |
20917 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
221 |
31 |
42 |
7 |
0 |
0 |
0 |
| OW |
0 |
45 |
3 |
12 |
10 |
4 |
0 |
0 |
| VODI |
0 |
53 |
3 |
7 |
12 |
5 |
2 |
0 |
| ODI |
0 |
38 |
4 |
3 |
8 |
7 |
8 |
0 |
| CDI |
0 |
39 |
3 |
8 |
9 |
23 |
45 |
5 |
| VCDI |
0 |
198 |
66 |
123 |
138 |
540 |
9445 |
20915 |
|
Date: 2023-03-13:
| 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 |
0 |
235 |
30 |
33 |
8 |
0 |
0 |
0 |
| OW |
0 |
43 |
2 |
8 |
12 |
5 |
0 |
0 |
| VODI |
0 |
60 |
7 |
7 |
14 |
11 |
1 |
0 |
| ODI |
0 |
29 |
3 |
6 |
21 |
19 |
2 |
0 |
| CDI |
0 |
29 |
4 |
6 |
13 |
47 |
64 |
0 |
| VCDI |
0 |
111 |
62 |
112 |
112 |
482 |
9230 |
21254 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
208 |
31 |
34 |
7 |
2 |
0 |
0 |
| OW |
0 |
42 |
1 |
8 |
13 |
3 |
0 |
0 |
| VODI |
0 |
45 |
4 |
6 |
13 |
10 |
1 |
0 |
| ODI |
0 |
29 |
6 |
5 |
18 |
11 |
4 |
0 |
| CDI |
0 |
34 |
4 |
4 |
11 |
35 |
46 |
0 |
| VCDI |
0 |
149 |
62 |
115 |
118 |
503 |
9246 |
21254 |
|
Date: 2023-03-15:
| 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 |
232 |
41 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
35 |
10 |
12 |
2 |
0 |
0 |
0 |
| VODI |
0 |
31 |
13 |
31 |
16 |
0 |
0 |
0 |
| ODI |
0 |
22 |
6 |
25 |
49 |
1 |
2 |
0 |
| CDI |
0 |
31 |
11 |
14 |
71 |
65 |
77 |
61 |
| VCDI |
0 |
114 |
56 |
93 |
260 |
1428 |
12388 |
16880 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
258 |
36 |
10 |
1 |
0 |
0 |
0 |
| OW |
0 |
46 |
12 |
7 |
4 |
0 |
0 |
0 |
| VODI |
0 |
36 |
19 |
33 |
18 |
1 |
4 |
0 |
| ODI |
0 |
31 |
12 |
26 |
63 |
10 |
8 |
0 |
| CDI |
0 |
23 |
22 |
26 |
63 |
88 |
71 |
3 |
| VCDI |
0 |
71 |
36 |
78 |
249 |
1395 |
12384 |
16938 |
|
Date: 2023-03-17:
| 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 |
169 |
35 |
29 |
7 |
1 |
0 |
0 |
| OW |
0 |
40 |
5 |
10 |
4 |
1 |
0 |
0 |
| VODI |
0 |
30 |
14 |
14 |
23 |
2 |
0 |
0 |
| ODI |
0 |
16 |
4 |
25 |
47 |
16 |
7 |
14 |
| CDI |
0 |
13 |
8 |
21 |
47 |
82 |
133 |
122 |
| VCDI |
0 |
40 |
20 |
68 |
225 |
1424 |
14267 |
15099 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
205 |
38 |
41 |
11 |
2 |
0 |
0 |
| OW |
0 |
34 |
8 |
13 |
24 |
7 |
2 |
0 |
| VODI |
0 |
26 |
17 |
39 |
72 |
46 |
19 |
0 |
| ODI |
0 |
14 |
8 |
17 |
33 |
73 |
82 |
9 |
| CDI |
0 |
16 |
8 |
14 |
39 |
123 |
323 |
82 |
| VCDI |
0 |
13 |
7 |
43 |
174 |
1275 |
13981 |
15144 |
|
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