Validation of sea ice concentration - Asian sector
Bulletin date: 2024-12-19
Data source: OSI SAF N.H. multi-product 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 |
124 |
952 |
91 |
51 |
0 |
0 |
0 |
0 |
| OW |
20 |
59 |
55 |
239 |
37 |
0 |
0 |
0 |
| VODI |
6 |
10 |
15 |
147 |
196 |
39 |
0 |
0 |
| ODI |
0 |
1 |
1 |
47 |
136 |
109 |
0 |
0 |
| CDI |
0 |
0 |
0 |
19 |
132 |
267 |
46 |
18 |
| VCDI |
0 |
0 |
0 |
5 |
42 |
417 |
5436 |
24379 |
|
...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 |
148 |
800 |
76 |
43 |
0 |
0 |
0 |
0 |
| OW |
2 |
53 |
45 |
176 |
73 |
0 |
0 |
0 |
| VODI |
0 |
12 |
14 |
108 |
181 |
87 |
0 |
0 |
| ODI |
0 |
1 |
7 |
38 |
96 |
204 |
20 |
0 |
| CDI |
0 |
0 |
0 |
10 |
112 |
181 |
191 |
8 |
| VCDI |
0 |
0 |
0 |
7 |
31 |
253 |
5379 |
24740 |
|
...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 |
144 |
771 |
63 |
13 |
0 |
0 |
0 |
0 |
| OW |
6 |
74 |
63 |
55 |
0 |
0 |
0 |
0 |
| VODI |
0 |
12 |
36 |
171 |
10 |
0 |
0 |
0 |
| ODI |
0 |
1 |
5 |
106 |
89 |
3 |
1 |
0 |
| CDI |
0 |
0 |
0 |
38 |
259 |
293 |
121 |
8 |
| VCDI |
0 |
0 |
0 |
15 |
131 |
528 |
7807 |
22273 |
|
...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 |
132 |
725 |
38 |
9 |
0 |
0 |
0 |
0 |
| OW |
14 |
104 |
60 |
35 |
0 |
0 |
0 |
0 |
| VODI |
4 |
24 |
32 |
148 |
22 |
0 |
0 |
0 |
| ODI |
0 |
3 |
6 |
127 |
93 |
13 |
0 |
0 |
| CDI |
0 |
1 |
0 |
45 |
300 |
290 |
298 |
8 |
| VCDI |
0 |
0 |
1 |
21 |
74 |
300 |
8181 |
21988 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
141 |
784 |
62 |
28 |
0 |
0 |
0 |
0 |
| OW |
9 |
58 |
55 |
81 |
5 |
0 |
0 |
0 |
| VODI |
0 |
14 |
16 |
152 |
40 |
1 |
0 |
0 |
| ODI |
0 |
1 |
3 |
86 |
152 |
45 |
4 |
0 |
| CDI |
0 |
0 |
1 |
32 |
239 |
310 |
401 |
20 |
| VCDI |
0 |
0 |
0 |
6 |
53 |
247 |
8074 |
21976 |
|
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 |
42 |
650 |
43 |
21 |
0 |
0 |
0 |
0 |
| OW |
0 |
128 |
33 |
112 |
3 |
0 |
0 |
0 |
| VODI |
0 |
36 |
31 |
152 |
53 |
1 |
0 |
0 |
| ODI |
0 |
3 |
9 |
114 |
143 |
16 |
3 |
0 |
| CDI |
0 |
0 |
0 |
38 |
332 |
295 |
305 |
11 |
| VCDI |
0 |
0 |
0 |
1 |
49 |
405 |
5653 |
24414 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
42 |
727 |
55 |
60 |
1 |
0 |
0 |
0 |
| OW |
0 |
77 |
35 |
122 |
14 |
1 |
0 |
0 |
| VODI |
0 |
12 |
21 |
155 |
93 |
1 |
0 |
0 |
| ODI |
0 |
1 |
5 |
87 |
206 |
26 |
3 |
0 |
| CDI |
0 |
0 |
0 |
14 |
243 |
341 |
404 |
36 |
| VCDI |
0 |
0 |
0 |
0 |
23 |
348 |
5554 |
24389 |
|
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 |
1 |
762 |
46 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
209 |
78 |
38 |
0 |
0 |
0 |
0 |
| VODI |
0 |
22 |
51 |
208 |
1 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
147 |
120 |
2 |
1 |
0 |
| CDI |
0 |
0 |
0 |
68 |
233 |
226 |
32 |
0 |
| VCDI |
0 |
0 |
0 |
33 |
85 |
389 |
4548 |
25793 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
755 |
66 |
28 |
0 |
0 |
0 |
0 |
| OW |
0 |
169 |
49 |
65 |
2 |
0 |
0 |
0 |
| VODI |
0 |
46 |
32 |
151 |
37 |
1 |
0 |
0 |
| ODI |
0 |
20 |
17 |
111 |
111 |
15 |
3 |
0 |
| CDI |
0 |
3 |
12 |
86 |
188 |
312 |
134 |
17 |
| VCDI |
0 |
0 |
0 |
55 |
101 |
289 |
4444 |
25776 |
|
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 |
13 |
696 |
41 |
34 |
0 |
0 |
0 |
0 |
| OW |
0 |
175 |
51 |
64 |
1 |
0 |
0 |
0 |
| VODI |
0 |
11 |
41 |
165 |
39 |
0 |
0 |
0 |
| ODI |
0 |
0 |
6 |
99 |
142 |
18 |
0 |
0 |
| CDI |
0 |
0 |
2 |
44 |
220 |
151 |
44 |
9 |
| VCDI |
0 |
0 |
0 |
53 |
93 |
364 |
5222 |
25298 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13 |
708 |
63 |
67 |
6 |
0 |
0 |
0 |
| OW |
0 |
116 |
22 |
79 |
21 |
0 |
0 |
0 |
| VODI |
0 |
42 |
25 |
119 |
66 |
16 |
0 |
0 |
| ODI |
0 |
14 |
15 |
71 |
135 |
28 |
1 |
0 |
| CDI |
0 |
2 |
11 |
52 |
161 |
209 |
179 |
20 |
| VCDI |
0 |
0 |
5 |
71 |
106 |
280 |
5086 |
25287 |
|
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 |
73 |
682 |
36 |
27 |
0 |
0 |
0 |
0 |
| OW |
5 |
197 |
50 |
70 |
0 |
0 |
0 |
0 |
| VODI |
1 |
55 |
15 |
112 |
30 |
0 |
0 |
0 |
| ODI |
0 |
24 |
7 |
67 |
144 |
27 |
2 |
0 |
| CDI |
0 |
30 |
8 |
35 |
173 |
93 |
8 |
0 |
| VCDI |
0 |
48 |
28 |
128 |
220 |
647 |
6640 |
23414 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
77 |
673 |
58 |
112 |
2 |
0 |
0 |
0 |
| OW |
2 |
155 |
17 |
76 |
23 |
0 |
0 |
0 |
| VODI |
0 |
86 |
15 |
69 |
95 |
8 |
0 |
0 |
| ODI |
0 |
45 |
17 |
33 |
126 |
54 |
2 |
0 |
| CDI |
0 |
45 |
23 |
72 |
179 |
206 |
78 |
36 |
| VCDI |
0 |
32 |
14 |
77 |
142 |
499 |
6570 |
23378 |
|
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