Validation of sea ice concentration - Asian sector
Bulletin date: 2023-03-16
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-03-10:
| 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 |
221 |
46 |
22 |
16 |
0 |
0 |
0 |
| OW |
0 |
39 |
5 |
17 |
14 |
2 |
0 |
0 |
| VODI |
0 |
41 |
9 |
11 |
11 |
7 |
0 |
0 |
| ODI |
0 |
27 |
13 |
6 |
12 |
6 |
2 |
0 |
| CDI |
0 |
37 |
10 |
7 |
13 |
52 |
52 |
1 |
| VCDI |
0 |
100 |
135 |
147 |
167 |
628 |
9504 |
20702 |
|
...date precedes bulletin
|
Date: 2023-03-12:
| 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 |
237 |
24 |
20 |
11 |
1 |
0 |
0 |
| OW |
0 |
46 |
2 |
6 |
13 |
6 |
0 |
0 |
| VODI |
0 |
46 |
2 |
8 |
10 |
13 |
3 |
0 |
| ODI |
0 |
34 |
2 |
2 |
12 |
3 |
7 |
0 |
| CDI |
0 |
39 |
4 |
4 |
10 |
19 |
46 |
4 |
| VCDI |
0 |
194 |
65 |
95 |
116 |
457 |
10440 |
20081 |
|
...date precedes bulletin
|
Date: 2023-03-14:
| 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 |
174 |
111 |
7 |
1 |
0 |
0 |
0 |
| OW |
0 |
38 |
9 |
3 |
6 |
3 |
0 |
0 |
| VODI |
0 |
35 |
14 |
18 |
13 |
6 |
0 |
0 |
| ODI |
0 |
26 |
10 |
21 |
18 |
13 |
0 |
0 |
| CDI |
0 |
28 |
20 |
11 |
48 |
87 |
34 |
2 |
| VCDI |
0 |
66 |
143 |
105 |
156 |
747 |
9822 |
20287 |
|
...date precedes bulletin
|
Date: 2023-03-16:
| 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 |
199 |
30 |
24 |
1 |
0 |
0 |
0 |
| OW |
0 |
41 |
13 |
8 |
4 |
0 |
0 |
0 |
| VODI |
0 |
23 |
11 |
50 |
8 |
0 |
0 |
0 |
| ODI |
0 |
18 |
8 |
33 |
46 |
3 |
9 |
0 |
| CDI |
0 |
21 |
11 |
20 |
71 |
68 |
101 |
99 |
| VCDI |
0 |
60 |
36 |
84 |
264 |
1488 |
13839 |
15391 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
202 |
30 |
24 |
1 |
0 |
0 |
0 |
| OW |
0 |
38 |
12 |
9 |
4 |
0 |
0 |
0 |
| VODI |
0 |
23 |
15 |
51 |
7 |
0 |
0 |
0 |
| ODI |
0 |
20 |
8 |
31 |
47 |
3 |
8 |
0 |
| CDI |
0 |
21 |
12 |
23 |
69 |
70 |
107 |
93 |
| VCDI |
0 |
58 |
32 |
81 |
266 |
1486 |
13834 |
15397 |
|
Date: 2023-03-18:
| 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 |
138 |
38 |
40 |
10 |
0 |
0 |
0 |
| OW |
0 |
38 |
5 |
12 |
5 |
4 |
0 |
0 |
| VODI |
0 |
25 |
13 |
18 |
9 |
7 |
0 |
0 |
| ODI |
0 |
15 |
6 |
16 |
53 |
9 |
12 |
12 |
| CDI |
0 |
15 |
3 |
20 |
49 |
30 |
91 |
133 |
| VCDI |
0 |
13 |
19 |
47 |
157 |
1053 |
14124 |
15843 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
137 |
38 |
41 |
10 |
1 |
0 |
0 |
| OW |
0 |
30 |
4 |
11 |
6 |
4 |
0 |
0 |
| VODI |
0 |
32 |
13 |
18 |
7 |
7 |
0 |
0 |
| ODI |
0 |
20 |
7 |
16 |
51 |
10 |
11 |
12 |
| CDI |
0 |
12 |
3 |
19 |
51 |
25 |
95 |
138 |
| VCDI |
0 |
13 |
19 |
48 |
158 |
1056 |
14121 |
15838 |
|
Date: 2023-03-20:
| 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 |
188 |
41 |
38 |
7 |
0 |
0 |
0 |
| OW |
0 |
24 |
17 |
13 |
11 |
1 |
0 |
0 |
| VODI |
0 |
23 |
7 |
15 |
31 |
10 |
0 |
0 |
| ODI |
0 |
9 |
5 |
10 |
57 |
21 |
0 |
0 |
| CDI |
0 |
6 |
6 |
8 |
26 |
34 |
20 |
19 |
| VCDI |
0 |
2 |
11 |
28 |
85 |
625 |
8978 |
21706 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
137 |
29 |
27 |
12 |
0 |
0 |
0 |
| OW |
0 |
34 |
10 |
9 |
2 |
2 |
0 |
0 |
| VODI |
0 |
36 |
14 |
16 |
7 |
4 |
0 |
0 |
| ODI |
0 |
21 |
9 |
8 |
28 |
13 |
2 |
1 |
| CDI |
0 |
16 |
8 |
12 |
43 |
23 |
98 |
32 |
| VCDI |
0 |
8 |
17 |
40 |
125 |
649 |
8898 |
21692 |
|
Date: 2023-03-22:
| 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 |
123 |
94 |
35 |
10 |
1 |
0 |
0 |
| OW |
0 |
32 |
17 |
16 |
16 |
2 |
0 |
0 |
| VODI |
0 |
17 |
7 |
8 |
24 |
19 |
1 |
0 |
| ODI |
0 |
12 |
5 |
7 |
19 |
46 |
6 |
0 |
| CDI |
0 |
7 |
6 |
6 |
10 |
53 |
56 |
7 |
| VCDI |
0 |
0 |
7 |
21 |
108 |
614 |
11440 |
19230 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
91 |
79 |
19 |
15 |
0 |
0 |
0 |
| OW |
0 |
35 |
20 |
16 |
5 |
5 |
0 |
0 |
| VODI |
0 |
33 |
14 |
17 |
12 |
11 |
0 |
0 |
| ODI |
0 |
18 |
8 |
8 |
38 |
43 |
21 |
0 |
| CDI |
0 |
10 |
5 |
12 |
22 |
76 |
135 |
18 |
| VCDI |
0 |
4 |
10 |
21 |
95 |
600 |
11347 |
19219 |
|
Date: 2023-03-24:
| 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 |
154 |
44 |
26 |
11 |
1 |
0 |
0 |
| OW |
0 |
38 |
9 |
18 |
11 |
5 |
0 |
0 |
| VODI |
0 |
23 |
5 |
15 |
15 |
15 |
0 |
0 |
| ODI |
0 |
15 |
4 |
9 |
18 |
32 |
19 |
0 |
| CDI |
0 |
7 |
10 |
6 |
29 |
63 |
26 |
30 |
| VCDI |
0 |
3 |
16 |
15 |
117 |
738 |
10562 |
19973 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
137 |
39 |
32 |
12 |
3 |
0 |
0 |
| OW |
0 |
37 |
11 |
7 |
13 |
6 |
0 |
0 |
| VODI |
0 |
35 |
7 |
14 |
10 |
20 |
0 |
0 |
| ODI |
0 |
20 |
4 |
10 |
17 |
50 |
36 |
0 |
| CDI |
0 |
9 |
11 |
9 |
35 |
74 |
205 |
19 |
| VCDI |
0 |
2 |
16 |
17 |
114 |
701 |
10366 |
19984 |
|
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