Validation of sea ice concentration - Asian sector
Bulletin date: 2025-01-16
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-01-10:
| 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 |
50 |
524 |
21 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
111 |
36 |
57 |
28 |
0 |
0 |
0 |
| VODI |
0 |
39 |
25 |
76 |
44 |
9 |
0 |
0 |
| ODI |
0 |
18 |
9 |
67 |
58 |
30 |
1 |
0 |
| CDI |
0 |
16 |
7 |
96 |
147 |
160 |
12 |
0 |
| VCDI |
0 |
0 |
2 |
23 |
85 |
634 |
3783 |
26913 |
|
...date precedes bulletin
|
Date: 2025-01-12:
| 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 |
112 |
454 |
24 |
6 |
0 |
0 |
0 |
0 |
| OW |
13 |
139 |
29 |
73 |
3 |
0 |
0 |
0 |
| VODI |
0 |
52 |
21 |
85 |
38 |
0 |
0 |
0 |
| ODI |
0 |
27 |
5 |
73 |
56 |
1 |
0 |
0 |
| CDI |
0 |
35 |
9 |
49 |
128 |
75 |
14 |
0 |
| VCDI |
0 |
32 |
26 |
98 |
194 |
579 |
6258 |
24388 |
|
...date precedes bulletin
|
Date: 2025-01-14:
| 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 |
491 |
17 |
0 |
0 |
0 |
0 |
0 |
| OW |
1 |
221 |
25 |
22 |
1 |
0 |
0 |
0 |
| VODI |
0 |
90 |
36 |
108 |
2 |
0 |
0 |
0 |
| ODI |
0 |
35 |
19 |
66 |
69 |
0 |
0 |
0 |
| CDI |
0 |
11 |
27 |
110 |
152 |
145 |
28 |
14 |
| VCDI |
0 |
1 |
1 |
62 |
197 |
760 |
7912 |
22388 |
|
...date precedes bulletin
|
Date: 2025-01-16:
| 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 |
51 |
456 |
9 |
0 |
0 |
0 |
0 |
0 |
| OW |
5 |
214 |
38 |
14 |
1 |
0 |
0 |
0 |
| VODI |
0 |
100 |
26 |
81 |
1 |
0 |
0 |
0 |
| ODI |
0 |
42 |
17 |
87 |
21 |
0 |
0 |
0 |
| CDI |
0 |
21 |
22 |
117 |
216 |
88 |
10 |
17 |
| VCDI |
0 |
1 |
16 |
64 |
185 |
539 |
4780 |
25857 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
56 |
540 |
33 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
160 |
28 |
43 |
1 |
0 |
0 |
0 |
| VODI |
0 |
94 |
27 |
94 |
6 |
0 |
0 |
0 |
| ODI |
0 |
24 |
14 |
86 |
37 |
0 |
1 |
1 |
| CDI |
0 |
16 |
13 |
87 |
204 |
113 |
9 |
33 |
| VCDI |
0 |
0 |
13 |
47 |
176 |
514 |
4780 |
25840 |
|
Date: 2025-01-18:
| 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 |
47 |
379 |
10 |
0 |
0 |
0 |
0 |
0 |
| OW |
4 |
170 |
29 |
27 |
0 |
0 |
0 |
0 |
| VODI |
0 |
87 |
33 |
90 |
23 |
0 |
0 |
0 |
| ODI |
0 |
37 |
8 |
74 |
47 |
4 |
0 |
0 |
| CDI |
0 |
23 |
16 |
93 |
135 |
141 |
26 |
19 |
| VCDI |
0 |
0 |
6 |
48 |
176 |
483 |
3529 |
27332 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
51 |
468 |
18 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
123 |
37 |
56 |
3 |
0 |
0 |
0 |
| VODI |
0 |
59 |
23 |
113 |
37 |
0 |
0 |
0 |
| ODI |
0 |
31 |
5 |
69 |
42 |
20 |
1 |
0 |
| CDI |
0 |
14 |
12 |
46 |
131 |
134 |
34 |
34 |
| VCDI |
0 |
1 |
7 |
41 |
168 |
474 |
3520 |
27317 |
|
Date: 2025-01-20:
| 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 |
24 |
378 |
5 |
1 |
0 |
0 |
0 |
0 |
| OW |
6 |
115 |
27 |
15 |
0 |
0 |
0 |
0 |
| VODI |
0 |
33 |
20 |
102 |
25 |
0 |
0 |
0 |
| ODI |
0 |
3 |
4 |
69 |
111 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
26 |
179 |
182 |
28 |
3 |
| VCDI |
0 |
0 |
0 |
10 |
108 |
323 |
3016 |
28277 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25 |
358 |
16 |
14 |
2 |
0 |
0 |
0 |
| OW |
5 |
86 |
9 |
34 |
17 |
0 |
0 |
0 |
| VODI |
0 |
47 |
7 |
85 |
55 |
1 |
0 |
0 |
| ODI |
0 |
21 |
11 |
20 |
106 |
34 |
0 |
1 |
| CDI |
0 |
14 |
9 |
44 |
99 |
136 |
12 |
22 |
| VCDI |
0 |
3 |
4 |
26 |
144 |
340 |
3032 |
28257 |
|
Date: 2025-01-22:
| 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 |
16 |
398 |
18 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
51 |
10 |
39 |
3 |
0 |
0 |
0 |
| VODI |
0 |
17 |
8 |
42 |
33 |
0 |
0 |
0 |
| ODI |
0 |
7 |
1 |
24 |
64 |
37 |
0 |
0 |
| CDI |
0 |
3 |
1 |
28 |
73 |
249 |
55 |
8 |
| VCDI |
0 |
0 |
0 |
9 |
88 |
333 |
3571 |
27903 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16 |
327 |
24 |
30 |
0 |
0 |
0 |
0 |
| OW |
0 |
65 |
2 |
32 |
6 |
2 |
0 |
0 |
| VODI |
0 |
45 |
3 |
20 |
38 |
14 |
0 |
0 |
| ODI |
0 |
23 |
6 |
15 |
63 |
27 |
0 |
3 |
| CDI |
0 |
16 |
3 |
38 |
66 |
177 |
51 |
29 |
| VCDI |
0 |
0 |
0 |
14 |
88 |
399 |
3575 |
27879 |
|
Date: 2025-01-24:
| 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 |
0 |
418 |
17 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
56 |
13 |
26 |
0 |
0 |
0 |
0 |
| VODI |
0 |
26 |
10 |
41 |
28 |
0 |
0 |
0 |
| ODI |
0 |
15 |
7 |
27 |
77 |
33 |
2 |
0 |
| CDI |
0 |
8 |
8 |
53 |
105 |
203 |
130 |
14 |
| VCDI |
0 |
0 |
0 |
4 |
79 |
299 |
4600 |
26789 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
339 |
22 |
42 |
2 |
0 |
0 |
0 |
| OW |
0 |
81 |
4 |
16 |
11 |
0 |
0 |
0 |
| VODI |
0 |
51 |
4 |
23 |
31 |
12 |
0 |
0 |
| ODI |
0 |
26 |
7 |
9 |
53 |
19 |
0 |
0 |
| CDI |
0 |
22 |
14 |
25 |
81 |
142 |
76 |
23 |
| VCDI |
0 |
4 |
4 |
44 |
111 |
362 |
4656 |
26780 |
|
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