Validation of sea ice concentration - Asian sector
Bulletin date: 2024-12-26
Data source: OSI SAF N.H. multi-product 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 |
138 |
646 |
53 |
14 |
0 |
0 |
0 |
0 |
| OW |
10 |
116 |
46 |
75 |
0 |
0 |
0 |
0 |
| VODI |
2 |
29 |
34 |
142 |
19 |
0 |
0 |
0 |
| ODI |
0 |
2 |
8 |
170 |
90 |
17 |
2 |
0 |
| CDI |
0 |
0 |
0 |
70 |
346 |
332 |
240 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
71 |
577 |
7972 |
21859 |
|
...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 |
694 |
21 |
17 |
0 |
0 |
0 |
0 |
| OW |
0 |
173 |
28 |
104 |
2 |
0 |
0 |
0 |
| VODI |
0 |
66 |
30 |
99 |
78 |
1 |
0 |
0 |
| ODI |
0 |
11 |
25 |
88 |
119 |
20 |
2 |
0 |
| CDI |
0 |
0 |
6 |
103 |
222 |
181 |
224 |
10 |
| VCDI |
0 |
0 |
0 |
7 |
117 |
415 |
5858 |
24375 |
|
...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 |
1 |
709 |
60 |
40 |
0 |
0 |
0 |
0 |
| OW |
0 |
193 |
39 |
73 |
0 |
0 |
0 |
0 |
| VODI |
0 |
13 |
41 |
199 |
12 |
0 |
0 |
0 |
| ODI |
0 |
0 |
11 |
107 |
123 |
3 |
0 |
0 |
| CDI |
0 |
0 |
4 |
68 |
206 |
270 |
27 |
5 |
| VCDI |
0 |
0 |
0 |
46 |
129 |
299 |
4225 |
26193 |
|
...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 |
37 |
684 |
37 |
25 |
0 |
0 |
0 |
0 |
| OW |
0 |
195 |
59 |
71 |
5 |
0 |
0 |
0 |
| VODI |
0 |
31 |
20 |
107 |
61 |
0 |
0 |
0 |
| ODI |
0 |
8 |
22 |
46 |
136 |
46 |
2 |
0 |
| CDI |
0 |
6 |
12 |
48 |
132 |
168 |
13 |
1 |
| VCDI |
0 |
3 |
12 |
94 |
143 |
486 |
6768 |
23618 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
37 |
786 |
71 |
60 |
0 |
0 |
0 |
0 |
| OW |
0 |
111 |
37 |
106 |
6 |
0 |
0 |
0 |
| VODI |
0 |
20 |
29 |
78 |
125 |
8 |
0 |
0 |
| ODI |
0 |
7 |
11 |
38 |
140 |
99 |
2 |
0 |
| CDI |
0 |
3 |
10 |
40 |
109 |
243 |
54 |
0 |
| VCDI |
0 |
0 |
4 |
69 |
97 |
350 |
6727 |
23619 |
|
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 |
109 |
650 |
37 |
24 |
0 |
0 |
0 |
0 |
| OW |
6 |
186 |
55 |
61 |
4 |
0 |
0 |
0 |
| VODI |
0 |
66 |
19 |
94 |
28 |
0 |
0 |
0 |
| ODI |
0 |
29 |
6 |
67 |
83 |
99 |
0 |
0 |
| CDI |
0 |
43 |
2 |
33 |
121 |
134 |
13 |
8 |
| VCDI |
0 |
114 |
35 |
128 |
191 |
634 |
7351 |
22666 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
112 |
744 |
75 |
78 |
1 |
0 |
0 |
0 |
| OW |
3 |
127 |
25 |
80 |
22 |
0 |
0 |
0 |
| VODI |
0 |
62 |
16 |
66 |
69 |
55 |
0 |
0 |
| ODI |
0 |
36 |
5 |
48 |
90 |
135 |
1 |
1 |
| CDI |
0 |
40 |
7 |
37 |
105 |
181 |
47 |
28 |
| VCDI |
0 |
79 |
26 |
98 |
140 |
496 |
7316 |
22645 |
|
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 |
93 |
721 |
39 |
30 |
0 |
0 |
0 |
0 |
| OW |
0 |
195 |
52 |
58 |
3 |
0 |
0 |
0 |
| VODI |
0 |
56 |
14 |
129 |
23 |
0 |
0 |
0 |
| ODI |
0 |
33 |
4 |
59 |
62 |
0 |
0 |
0 |
| CDI |
0 |
24 |
29 |
103 |
182 |
161 |
26 |
5 |
| VCDI |
0 |
0 |
0 |
33 |
185 |
541 |
5640 |
24596 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
93 |
740 |
59 |
83 |
6 |
0 |
0 |
0 |
| OW |
0 |
114 |
23 |
67 |
33 |
0 |
0 |
0 |
| VODI |
0 |
60 |
21 |
74 |
63 |
39 |
0 |
0 |
| ODI |
0 |
29 |
4 |
62 |
73 |
121 |
6 |
0 |
| CDI |
0 |
42 |
5 |
36 |
98 |
140 |
115 |
25 |
| VCDI |
0 |
44 |
26 |
90 |
182 |
402 |
5545 |
24576 |
|
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 |
109 |
778 |
32 |
6 |
0 |
0 |
0 |
0 |
| OW |
6 |
199 |
77 |
39 |
0 |
0 |
0 |
0 |
| VODI |
0 |
48 |
34 |
101 |
6 |
0 |
0 |
0 |
| ODI |
0 |
29 |
9 |
85 |
33 |
18 |
0 |
0 |
| CDI |
0 |
38 |
17 |
87 |
186 |
79 |
8 |
4 |
| VCDI |
0 |
0 |
10 |
98 |
528 |
1208 |
9953 |
19271 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
110 |
720 |
71 |
31 |
0 |
0 |
0 |
0 |
| OW |
5 |
154 |
36 |
73 |
5 |
0 |
0 |
0 |
| VODI |
0 |
73 |
26 |
77 |
84 |
1 |
0 |
0 |
| ODI |
0 |
24 |
16 |
78 |
148 |
14 |
0 |
0 |
| CDI |
0 |
51 |
3 |
68 |
207 |
77 |
23 |
5 |
| VCDI |
0 |
70 |
27 |
89 |
309 |
1213 |
9938 |
19270 |
|
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 |
189 |
757 |
34 |
7 |
0 |
0 |
0 |
0 |
| OW |
7 |
206 |
43 |
44 |
0 |
0 |
0 |
0 |
| VODI |
0 |
82 |
22 |
89 |
13 |
0 |
0 |
0 |
| ODI |
0 |
47 |
6 |
79 |
37 |
17 |
0 |
0 |
| CDI |
0 |
58 |
12 |
69 |
172 |
100 |
3 |
7 |
| VCDI |
0 |
96 |
53 |
242 |
526 |
1522 |
6839 |
21718 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
189 |
626 |
59 |
28 |
0 |
0 |
0 |
0 |
| OW |
7 |
199 |
22 |
65 |
2 |
0 |
0 |
0 |
| VODI |
0 |
108 |
17 |
125 |
35 |
0 |
0 |
0 |
| ODI |
0 |
75 |
10 |
77 |
105 |
7 |
0 |
0 |
| CDI |
0 |
58 |
27 |
54 |
221 |
66 |
7 |
30 |
| VCDI |
0 |
180 |
35 |
181 |
385 |
1566 |
6835 |
21695 |
|
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