Validation of sea ice concentration - Asian sector
Bulletin date: 2023-12-07
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-01:
| 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 |
1021 |
68 |
114 |
147 |
22 |
0 |
0 |
| OW |
0 |
198 |
46 |
57 |
14 |
15 |
0 |
0 |
| VODI |
0 |
134 |
48 |
117 |
107 |
19 |
0 |
0 |
| ODI |
0 |
21 |
19 |
84 |
151 |
88 |
9 |
0 |
| CDI |
0 |
6 |
5 |
27 |
126 |
183 |
96 |
1 |
| VCDI |
0 |
1 |
3 |
19 |
93 |
1692 |
11587 |
15744 |
|
...date precedes bulletin
|
Date: 2023-12-03:
| 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 |
882 |
55 |
117 |
62 |
12 |
0 |
0 |
| OW |
0 |
162 |
35 |
44 |
26 |
15 |
1 |
0 |
| VODI |
0 |
62 |
64 |
109 |
71 |
41 |
11 |
0 |
| ODI |
0 |
29 |
19 |
63 |
158 |
114 |
5 |
0 |
| CDI |
0 |
9 |
11 |
59 |
123 |
142 |
35 |
8 |
| VCDI |
0 |
0 |
0 |
8 |
114 |
913 |
7373 |
21130 |
|
...date precedes bulletin
|
Date: 2023-12-05:
| 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 |
684 |
69 |
126 |
67 |
17 |
1 |
0 |
| OW |
0 |
82 |
38 |
61 |
39 |
3 |
1 |
0 |
| VODI |
0 |
52 |
42 |
121 |
65 |
13 |
0 |
0 |
| ODI |
0 |
6 |
16 |
84 |
146 |
30 |
1 |
0 |
| CDI |
0 |
0 |
1 |
39 |
270 |
266 |
31 |
7 |
| VCDI |
0 |
0 |
0 |
3 |
35 |
799 |
9045 |
19822 |
|
...date precedes bulletin
|
Date: 2023-12-07:
| 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 |
3 |
393 |
59 |
180 |
141 |
42 |
13 |
0 |
| OW |
0 |
30 |
23 |
53 |
36 |
23 |
3 |
0 |
| VODI |
0 |
15 |
12 |
73 |
96 |
57 |
4 |
0 |
| ODI |
0 |
11 |
19 |
31 |
92 |
69 |
12 |
0 |
| CDI |
0 |
2 |
6 |
43 |
115 |
287 |
56 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
109 |
726 |
9090 |
20157 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3 |
397 |
57 |
183 |
143 |
45 |
15 |
0 |
| OW |
0 |
25 |
26 |
46 |
39 |
20 |
1 |
0 |
| VODI |
0 |
16 |
8 |
69 |
82 |
44 |
4 |
0 |
| ODI |
0 |
7 |
15 |
30 |
88 |
75 |
11 |
0 |
| CDI |
0 |
6 |
13 |
44 |
101 |
240 |
59 |
1 |
| VCDI |
0 |
0 |
0 |
9 |
136 |
780 |
9088 |
20156 |
|
Date: 2023-12-09:
| 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 |
1 |
349 |
13 |
42 |
211 |
126 |
42 |
0 |
| OW |
0 |
37 |
18 |
47 |
44 |
33 |
3 |
0 |
| VODI |
0 |
22 |
12 |
38 |
83 |
50 |
1 |
0 |
| ODI |
0 |
3 |
6 |
37 |
82 |
108 |
4 |
0 |
| CDI |
0 |
0 |
6 |
22 |
58 |
241 |
64 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
57 |
549 |
7791 |
21872 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
352 |
13 |
41 |
219 |
129 |
43 |
0 |
| OW |
0 |
36 |
17 |
44 |
37 |
27 |
2 |
0 |
| VODI |
0 |
20 |
14 |
41 |
75 |
42 |
1 |
0 |
| ODI |
0 |
3 |
6 |
32 |
79 |
95 |
4 |
0 |
| CDI |
0 |
0 |
3 |
22 |
59 |
232 |
47 |
2 |
| VCDI |
0 |
0 |
2 |
16 |
66 |
582 |
7808 |
21870 |
|
Date: 2023-12-11:
| 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 |
5 |
769 |
56 |
113 |
101 |
56 |
2 |
0 |
| OW |
0 |
158 |
40 |
96 |
45 |
0 |
0 |
0 |
| VODI |
0 |
121 |
46 |
56 |
64 |
1 |
0 |
0 |
| ODI |
0 |
35 |
37 |
85 |
89 |
18 |
0 |
0 |
| CDI |
0 |
9 |
17 |
68 |
115 |
154 |
26 |
4 |
| VCDI |
0 |
8 |
16 |
69 |
115 |
941 |
8549 |
19998 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5 |
587 |
24 |
65 |
94 |
56 |
2 |
0 |
| OW |
0 |
150 |
28 |
44 |
35 |
0 |
0 |
0 |
| VODI |
0 |
120 |
20 |
64 |
48 |
0 |
0 |
0 |
| ODI |
0 |
97 |
18 |
60 |
53 |
7 |
0 |
0 |
| CDI |
0 |
85 |
52 |
97 |
98 |
59 |
29 |
5 |
| VCDI |
0 |
61 |
70 |
157 |
201 |
1048 |
8546 |
19997 |
|
Date: 2023-12-13:
| 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 |
1 |
659 |
34 |
109 |
97 |
26 |
0 |
0 |
| OW |
0 |
308 |
44 |
53 |
55 |
5 |
0 |
0 |
| VODI |
0 |
237 |
29 |
79 |
56 |
7 |
0 |
0 |
| ODI |
0 |
108 |
28 |
71 |
53 |
24 |
10 |
0 |
| CDI |
0 |
49 |
29 |
125 |
89 |
65 |
40 |
2 |
| VCDI |
0 |
64 |
38 |
129 |
198 |
1323 |
7851 |
19987 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
575 |
25 |
73 |
88 |
27 |
0 |
0 |
| OW |
0 |
207 |
19 |
51 |
50 |
3 |
0 |
0 |
| VODI |
0 |
228 |
39 |
55 |
63 |
16 |
0 |
0 |
| ODI |
0 |
215 |
16 |
72 |
64 |
30 |
10 |
0 |
| CDI |
0 |
119 |
54 |
97 |
50 |
83 |
55 |
0 |
| VCDI |
0 |
81 |
49 |
218 |
233 |
1291 |
7836 |
19989 |
|
Date: 2023-12-15:
| 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 |
7 |
496 |
20 |
62 |
118 |
5 |
0 |
0 |
| OW |
0 |
278 |
15 |
27 |
83 |
53 |
0 |
0 |
| VODI |
0 |
253 |
62 |
104 |
80 |
58 |
0 |
0 |
| ODI |
0 |
86 |
38 |
108 |
77 |
72 |
0 |
0 |
| CDI |
0 |
33 |
21 |
86 |
141 |
156 |
12 |
2 |
| VCDI |
0 |
69 |
23 |
96 |
268 |
1660 |
7123 |
20290 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7 |
423 |
13 |
59 |
122 |
9 |
0 |
0 |
| OW |
0 |
209 |
16 |
22 |
43 |
49 |
0 |
0 |
| VODI |
0 |
188 |
32 |
56 |
90 |
52 |
0 |
0 |
| ODI |
0 |
203 |
34 |
58 |
67 |
94 |
0 |
0 |
| CDI |
0 |
110 |
42 |
94 |
87 |
82 |
13 |
2 |
| VCDI |
0 |
82 |
42 |
194 |
358 |
1718 |
7122 |
20290 |
|
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