Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-29
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-02-23:
| 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 |
276 |
7 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
50 |
13 |
11 |
5 |
0 |
0 |
0 |
| VODI |
0 |
37 |
5 |
18 |
10 |
0 |
0 |
0 |
| ODI |
0 |
37 |
4 |
4 |
3 |
0 |
0 |
0 |
| CDI |
0 |
30 |
29 |
57 |
51 |
34 |
41 |
0 |
| VCDI |
0 |
2 |
3 |
115 |
331 |
943 |
9743 |
20219 |
|
...date precedes bulletin
|
Date: 2024-02-25:
| 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 |
294 |
7 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
79 |
7 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
52 |
5 |
19 |
9 |
0 |
0 |
0 |
| ODI |
0 |
51 |
2 |
5 |
9 |
11 |
0 |
0 |
| CDI |
0 |
74 |
11 |
16 |
24 |
48 |
12 |
0 |
| VCDI |
0 |
140 |
75 |
119 |
265 |
1287 |
9802 |
19654 |
|
...date precedes bulletin
|
Date: 2024-02-27:
| 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 |
382 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
75 |
10 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
133 |
7 |
20 |
7 |
1 |
0 |
0 |
| ODI |
0 |
64 |
21 |
25 |
48 |
16 |
1 |
0 |
| CDI |
0 |
56 |
19 |
42 |
119 |
146 |
108 |
25 |
| VCDI |
0 |
157 |
32 |
103 |
233 |
1842 |
13373 |
15012 |
|
...date precedes bulletin
|
Date: 2024-02-29:
| 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 |
364 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
74 |
9 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
101 |
5 |
12 |
3 |
0 |
0 |
0 |
| ODI |
0 |
113 |
9 |
22 |
15 |
14 |
7 |
0 |
| CDI |
0 |
68 |
23 |
39 |
55 |
129 |
123 |
12 |
| VCDI |
0 |
130 |
41 |
109 |
256 |
1535 |
13462 |
15349 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
368 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
68 |
10 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
86 |
4 |
6 |
2 |
0 |
0 |
0 |
| ODI |
0 |
104 |
6 |
18 |
15 |
15 |
9 |
0 |
| CDI |
0 |
78 |
22 |
33 |
42 |
117 |
111 |
6 |
| VCDI |
0 |
146 |
45 |
122 |
270 |
1546 |
13472 |
15355 |
|
Date: 2024-03-02:
| 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 |
310 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
61 |
7 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
142 |
9 |
13 |
4 |
3 |
1 |
0 |
| ODI |
0 |
114 |
8 |
10 |
21 |
7 |
6 |
0 |
| CDI |
0 |
140 |
18 |
20 |
55 |
106 |
38 |
3 |
| VCDI |
0 |
186 |
48 |
172 |
279 |
2295 |
9991 |
18014 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
305 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
60 |
7 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
120 |
8 |
7 |
0 |
2 |
0 |
0 |
| ODI |
0 |
114 |
8 |
13 |
19 |
8 |
4 |
0 |
| CDI |
0 |
130 |
12 |
20 |
52 |
99 |
39 |
4 |
| VCDI |
0 |
224 |
55 |
174 |
288 |
2302 |
9993 |
18013 |
|
Date: 2024-03-04:
| 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 |
321 |
18 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
39 |
9 |
7 |
1 |
0 |
0 |
0 |
| VODI |
0 |
67 |
6 |
17 |
27 |
0 |
0 |
0 |
| ODI |
0 |
28 |
15 |
17 |
73 |
13 |
0 |
0 |
| CDI |
0 |
16 |
19 |
50 |
113 |
150 |
81 |
2 |
| VCDI |
0 |
1 |
12 |
60 |
107 |
1549 |
8717 |
20545 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
220 |
12 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
41 |
12 |
2 |
1 |
0 |
0 |
0 |
| VODI |
0 |
37 |
4 |
16 |
6 |
0 |
0 |
0 |
| ODI |
0 |
38 |
1 |
3 |
25 |
4 |
3 |
0 |
| CDI |
0 |
69 |
5 |
9 |
53 |
95 |
116 |
14 |
| VCDI |
0 |
67 |
45 |
121 |
236 |
1613 |
8679 |
20533 |
|
Date: 2024-03-06:
| 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 |
287 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
55 |
4 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
51 |
6 |
14 |
7 |
1 |
0 |
0 |
| ODI |
0 |
35 |
6 |
7 |
35 |
15 |
0 |
0 |
| CDI |
0 |
29 |
17 |
19 |
81 |
70 |
3 |
0 |
| VCDI |
0 |
5 |
21 |
93 |
133 |
689 |
7524 |
22866 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
222 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
51 |
2 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
40 |
8 |
9 |
4 |
0 |
0 |
0 |
| ODI |
0 |
29 |
2 |
8 |
9 |
0 |
0 |
0 |
| CDI |
0 |
39 |
1 |
4 |
5 |
25 |
42 |
2 |
| VCDI |
0 |
81 |
42 |
113 |
238 |
750 |
7485 |
22864 |
|
Date: 2024-03-08:
| 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 |
240 |
13 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
37 |
7 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
47 |
3 |
11 |
6 |
0 |
0 |
0 |
| ODI |
0 |
35 |
9 |
14 |
17 |
2 |
0 |
0 |
| CDI |
0 |
16 |
13 |
18 |
15 |
58 |
37 |
0 |
| VCDI |
0 |
8 |
5 |
46 |
168 |
626 |
6073 |
24549 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
203 |
8 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
43 |
11 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
37 |
4 |
14 |
7 |
0 |
0 |
0 |
| ODI |
0 |
32 |
0 |
4 |
16 |
3 |
0 |
0 |
| CDI |
0 |
38 |
6 |
9 |
4 |
27 |
6 |
0 |
| VCDI |
0 |
30 |
21 |
64 |
179 |
656 |
6104 |
24549 |
|
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