Validation of sea ice concentration - Asian sector
Bulletin date: 2024-12-19
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-13:
| 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 |
1001 |
30 |
26 |
3 |
0 |
0 |
0 |
| OW |
0 |
162 |
65 |
104 |
53 |
1 |
0 |
0 |
| VODI |
0 |
42 |
26 |
87 |
162 |
78 |
0 |
0 |
| ODI |
0 |
2 |
5 |
43 |
99 |
138 |
4 |
0 |
| CDI |
0 |
0 |
0 |
2 |
78 |
274 |
115 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
22 |
512 |
9662 |
19283 |
|
...date precedes bulletin
|
Date: 2024-12-15:
| 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 |
1 |
855 |
20 |
11 |
0 |
0 |
0 |
0 |
| OW |
0 |
136 |
51 |
87 |
65 |
5 |
0 |
0 |
| VODI |
0 |
41 |
20 |
68 |
148 |
114 |
4 |
0 |
| ODI |
0 |
12 |
7 |
21 |
71 |
201 |
47 |
0 |
| CDI |
0 |
0 |
0 |
9 |
64 |
179 |
224 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
27 |
322 |
9390 |
19880 |
|
...date precedes bulletin
|
Date: 2024-12-17:
| 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 |
804 |
6 |
3 |
1 |
0 |
0 |
0 |
| OW |
0 |
162 |
21 |
9 |
1 |
0 |
0 |
0 |
| VODI |
0 |
96 |
53 |
68 |
12 |
0 |
0 |
0 |
| ODI |
0 |
16 |
17 |
78 |
70 |
15 |
2 |
0 |
| CDI |
0 |
8 |
6 |
29 |
186 |
287 |
176 |
0 |
| VCDI |
0 |
0 |
5 |
18 |
45 |
619 |
13633 |
15636 |
|
...date precedes bulletin
|
Date: 2024-12-19:
| 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 |
736 |
7 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
172 |
14 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
123 |
49 |
47 |
7 |
2 |
0 |
0 |
| ODI |
0 |
14 |
36 |
102 |
50 |
13 |
2 |
0 |
| CDI |
0 |
7 |
6 |
53 |
183 |
358 |
292 |
0 |
| VCDI |
0 |
8 |
2 |
15 |
56 |
392 |
9017 |
20309 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
830 |
10 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
147 |
26 |
21 |
2 |
0 |
0 |
0 |
| VODI |
0 |
72 |
58 |
74 |
12 |
2 |
1 |
0 |
| ODI |
0 |
6 |
18 |
93 |
96 |
49 |
1 |
0 |
| CDI |
0 |
5 |
1 |
30 |
153 |
379 |
397 |
1 |
| VCDI |
0 |
0 |
1 |
4 |
33 |
335 |
8912 |
20308 |
|
Date: 2024-12-21:
| 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 |
579 |
16 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
178 |
31 |
40 |
6 |
0 |
0 |
0 |
| VODI |
0 |
115 |
34 |
77 |
33 |
6 |
1 |
0 |
| ODI |
0 |
26 |
37 |
95 |
78 |
30 |
6 |
0 |
| CDI |
0 |
4 |
13 |
84 |
173 |
259 |
397 |
0 |
| VCDI |
0 |
0 |
2 |
15 |
46 |
308 |
8196 |
21193 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
675 |
25 |
18 |
0 |
0 |
0 |
0 |
| OW |
0 |
135 |
32 |
53 |
11 |
1 |
1 |
0 |
| VODI |
0 |
83 |
45 |
86 |
55 |
7 |
1 |
0 |
| ODI |
0 |
9 |
28 |
111 |
112 |
49 |
5 |
0 |
| CDI |
0 |
0 |
3 |
46 |
136 |
310 |
503 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
22 |
236 |
8090 |
21193 |
|
Date: 2024-12-23:
| 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 |
16 |
644 |
7 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
261 |
20 |
13 |
0 |
0 |
0 |
0 |
| VODI |
0 |
127 |
52 |
85 |
8 |
0 |
0 |
0 |
| ODI |
0 |
25 |
31 |
114 |
73 |
22 |
1 |
0 |
| CDI |
0 |
13 |
21 |
67 |
115 |
257 |
49 |
0 |
| VCDI |
0 |
0 |
1 |
24 |
59 |
302 |
6915 |
22760 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16 |
672 |
5 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
211 |
35 |
16 |
1 |
0 |
0 |
0 |
| VODI |
0 |
97 |
42 |
89 |
27 |
5 |
1 |
0 |
| ODI |
0 |
53 |
22 |
96 |
62 |
33 |
4 |
0 |
| CDI |
0 |
35 |
21 |
72 |
111 |
283 |
208 |
11 |
| VCDI |
0 |
2 |
7 |
29 |
54 |
260 |
6752 |
22749 |
|
Date: 2024-12-25:
| 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 |
26 |
619 |
9 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
228 |
12 |
21 |
2 |
0 |
0 |
0 |
| VODI |
0 |
90 |
41 |
56 |
47 |
0 |
0 |
0 |
| ODI |
0 |
27 |
11 |
66 |
104 |
39 |
0 |
0 |
| CDI |
0 |
15 |
10 |
46 |
126 |
144 |
102 |
5 |
| VCDI |
0 |
1 |
9 |
45 |
71 |
330 |
9044 |
20732 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
26 |
660 |
14 |
9 |
6 |
0 |
0 |
0 |
| OW |
0 |
150 |
26 |
26 |
10 |
4 |
0 |
0 |
| VODI |
0 |
92 |
16 |
71 |
50 |
21 |
3 |
0 |
| ODI |
0 |
44 |
12 |
34 |
135 |
28 |
7 |
0 |
| CDI |
0 |
21 |
13 |
47 |
85 |
200 |
212 |
13 |
| VCDI |
0 |
13 |
11 |
51 |
64 |
260 |
8924 |
20724 |
|
Date: 2024-12-27:
| 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 |
85 |
611 |
3 |
3 |
0 |
0 |
0 |
0 |
| OW |
10 |
256 |
9 |
14 |
3 |
0 |
0 |
0 |
| VODI |
1 |
91 |
34 |
34 |
21 |
8 |
0 |
0 |
| ODI |
0 |
42 |
9 |
51 |
98 |
49 |
2 |
0 |
| CDI |
0 |
51 |
9 |
25 |
98 |
121 |
12 |
0 |
| VCDI |
0 |
136 |
34 |
74 |
153 |
522 |
9158 |
20255 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
90 |
651 |
23 |
16 |
0 |
0 |
0 |
0 |
| OW |
6 |
175 |
16 |
41 |
19 |
0 |
0 |
0 |
| VODI |
0 |
112 |
13 |
47 |
52 |
31 |
1 |
0 |
| ODI |
0 |
69 |
6 |
28 |
81 |
72 |
3 |
0 |
| CDI |
0 |
102 |
21 |
26 |
122 |
191 |
115 |
22 |
| VCDI |
0 |
78 |
19 |
43 |
99 |
406 |
9053 |
20233 |
|
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