Validation of sea ice concentration - Asian sector
Bulletin date: 2024-12-26
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-20:
| 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 |
676 |
7 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
183 |
23 |
24 |
0 |
0 |
0 |
0 |
| VODI |
0 |
107 |
41 |
63 |
14 |
2 |
0 |
0 |
| ODI |
0 |
21 |
52 |
99 |
46 |
40 |
0 |
0 |
| CDI |
0 |
11 |
11 |
79 |
209 |
354 |
282 |
0 |
| VCDI |
0 |
8 |
3 |
10 |
50 |
575 |
8685 |
20403 |
|
...date precedes bulletin
|
Date: 2024-12-22:
| 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 |
575 |
10 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
206 |
32 |
36 |
4 |
0 |
0 |
0 |
| VODI |
0 |
132 |
19 |
63 |
44 |
7 |
1 |
0 |
| ODI |
0 |
61 |
28 |
63 |
71 |
28 |
9 |
0 |
| CDI |
0 |
38 |
39 |
84 |
105 |
169 |
281 |
0 |
| VCDI |
0 |
1 |
4 |
29 |
69 |
262 |
7480 |
22132 |
|
...date precedes bulletin
|
Date: 2024-12-24:
| 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 |
6 |
645 |
15 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
240 |
11 |
25 |
2 |
0 |
0 |
0 |
| VODI |
0 |
114 |
33 |
85 |
15 |
0 |
0 |
0 |
| ODI |
0 |
30 |
24 |
94 |
69 |
18 |
3 |
0 |
| CDI |
0 |
17 |
30 |
67 |
112 |
205 |
121 |
0 |
| VCDI |
0 |
1 |
3 |
39 |
65 |
324 |
7150 |
22513 |
|
...date precedes bulletin
|
Date: 2024-12-26:
| 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 |
48 |
609 |
6 |
3 |
0 |
0 |
0 |
0 |
| OW |
2 |
267 |
11 |
16 |
2 |
0 |
0 |
0 |
| VODI |
0 |
98 |
23 |
28 |
48 |
1 |
0 |
0 |
| ODI |
0 |
34 |
17 |
42 |
96 |
51 |
2 |
0 |
| CDI |
0 |
40 |
14 |
35 |
101 |
138 |
18 |
0 |
| VCDI |
0 |
56 |
26 |
74 |
104 |
339 |
8685 |
21048 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
50 |
755 |
8 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
188 |
19 |
16 |
5 |
0 |
0 |
0 |
| VODI |
0 |
70 |
28 |
57 |
80 |
12 |
0 |
0 |
| ODI |
0 |
33 |
10 |
38 |
108 |
87 |
11 |
0 |
| CDI |
0 |
30 |
14 |
25 |
95 |
196 |
70 |
0 |
| VCDI |
0 |
28 |
18 |
56 |
63 |
234 |
8624 |
21048 |
|
Date: 2024-12-28:
| 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 |
116 |
565 |
14 |
5 |
1 |
0 |
0 |
0 |
| OW |
14 |
217 |
22 |
26 |
6 |
0 |
0 |
0 |
| VODI |
0 |
92 |
20 |
48 |
24 |
2 |
0 |
0 |
| ODI |
0 |
43 |
8 |
25 |
82 |
90 |
16 |
0 |
| CDI |
0 |
53 |
7 |
23 |
67 |
162 |
7 |
13 |
| VCDI |
0 |
187 |
32 |
82 |
115 |
535 |
8817 |
20546 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
125 |
691 |
32 |
19 |
3 |
0 |
0 |
0 |
| OW |
5 |
156 |
15 |
44 |
19 |
0 |
0 |
0 |
| VODI |
0 |
77 |
15 |
38 |
57 |
56 |
9 |
0 |
| ODI |
0 |
46 |
9 |
22 |
77 |
132 |
11 |
0 |
| CDI |
0 |
51 |
12 |
27 |
61 |
176 |
60 |
33 |
| VCDI |
0 |
136 |
20 |
59 |
78 |
425 |
8760 |
20526 |
|
Date: 2024-12-30:
| 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 |
80 |
676 |
9 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
256 |
12 |
18 |
0 |
0 |
0 |
0 |
| VODI |
0 |
109 |
45 |
43 |
7 |
0 |
0 |
0 |
| ODI |
0 |
48 |
10 |
54 |
30 |
2 |
0 |
0 |
| CDI |
0 |
58 |
31 |
79 |
132 |
175 |
24 |
0 |
| VCDI |
0 |
4 |
7 |
57 |
124 |
500 |
9880 |
19612 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
79 |
726 |
15 |
19 |
1 |
0 |
0 |
0 |
| OW |
1 |
166 |
17 |
23 |
12 |
2 |
0 |
0 |
| VODI |
0 |
107 |
21 |
38 |
36 |
40 |
0 |
0 |
| ODI |
0 |
38 |
21 |
43 |
66 |
111 |
5 |
0 |
| CDI |
0 |
38 |
11 |
44 |
73 |
162 |
95 |
7 |
| VCDI |
0 |
76 |
29 |
84 |
105 |
362 |
9804 |
19605 |
|
Date: 2025-01-01:
| 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 |
130 |
668 |
2 |
1 |
0 |
0 |
0 |
0 |
| OW |
4 |
272 |
13 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
124 |
21 |
22 |
1 |
1 |
0 |
0 |
| ODI |
0 |
61 |
29 |
32 |
22 |
14 |
0 |
0 |
| CDI |
0 |
71 |
25 |
88 |
113 |
78 |
7 |
8 |
| VCDI |
0 |
46 |
27 |
129 |
445 |
1214 |
13508 |
14904 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
131 |
656 |
14 |
4 |
0 |
0 |
0 |
0 |
| OW |
3 |
208 |
14 |
17 |
3 |
3 |
0 |
0 |
| VODI |
0 |
121 |
25 |
39 |
49 |
11 |
0 |
0 |
| ODI |
0 |
62 |
19 |
67 |
98 |
11 |
0 |
0 |
| CDI |
0 |
66 |
17 |
72 |
130 |
90 |
20 |
12 |
| VCDI |
0 |
129 |
28 |
75 |
301 |
1192 |
13495 |
14900 |
|
Date: 2025-01-03:
| 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 |
218 |
627 |
11 |
1 |
0 |
0 |
0 |
0 |
| OW |
8 |
241 |
10 |
10 |
1 |
0 |
0 |
0 |
| VODI |
0 |
119 |
29 |
23 |
13 |
3 |
0 |
0 |
| ODI |
0 |
62 |
15 |
52 |
22 |
23 |
0 |
0 |
| CDI |
0 |
78 |
9 |
49 |
125 |
114 |
7 |
19 |
| VCDI |
0 |
222 |
66 |
185 |
344 |
1224 |
9932 |
18220 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
219 |
508 |
27 |
4 |
0 |
0 |
0 |
0 |
| OW |
7 |
226 |
10 |
23 |
6 |
0 |
0 |
0 |
| VODI |
0 |
142 |
23 |
64 |
32 |
10 |
0 |
0 |
| ODI |
0 |
91 |
14 |
63 |
85 |
16 |
0 |
0 |
| CDI |
0 |
100 |
16 |
42 |
132 |
98 |
31 |
15 |
| VCDI |
0 |
282 |
50 |
124 |
250 |
1240 |
9908 |
18224 |
|
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