Validation of sea ice concentration - Asian sector
Bulletin date: 2023-01-26
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-01-20:
| 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 |
104 |
149 |
1 |
2 |
0 |
0 |
0 |
0 |
| OW |
5 |
53 |
4 |
19 |
0 |
0 |
0 |
0 |
| VODI |
0 |
76 |
0 |
1 |
50 |
0 |
0 |
0 |
| ODI |
0 |
59 |
0 |
6 |
53 |
2 |
0 |
0 |
| CDI |
0 |
78 |
1 |
21 |
62 |
97 |
3 |
2 |
| VCDI |
0 |
252 |
20 |
132 |
459 |
1685 |
6570 |
22116 |
|
...date precedes bulletin
|
Date: 2023-01-22:
| 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 |
139 |
155 |
3 |
2 |
0 |
0 |
0 |
0 |
| OW |
5 |
60 |
6 |
16 |
0 |
0 |
0 |
0 |
| VODI |
0 |
74 |
0 |
55 |
25 |
0 |
0 |
0 |
| ODI |
0 |
70 |
1 |
20 |
41 |
7 |
0 |
0 |
| CDI |
0 |
82 |
2 |
53 |
77 |
61 |
10 |
1 |
| VCDI |
0 |
306 |
18 |
139 |
601 |
1910 |
6449 |
21694 |
|
...date precedes bulletin
|
Date: 2023-01-24:
| 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 |
120 |
311 |
4 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
111 |
5 |
24 |
2 |
0 |
0 |
0 |
| VODI |
0 |
99 |
5 |
112 |
51 |
0 |
0 |
0 |
| ODI |
0 |
59 |
0 |
54 |
61 |
7 |
0 |
0 |
| CDI |
0 |
56 |
0 |
42 |
134 |
62 |
11 |
2 |
| VCDI |
0 |
261 |
22 |
181 |
765 |
2335 |
5598 |
21584 |
|
...date precedes bulletin
|
Date: 2023-01-26:
| 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 |
75 |
326 |
2 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
88 |
8 |
52 |
5 |
0 |
0 |
0 |
| VODI |
0 |
161 |
5 |
126 |
55 |
9 |
0 |
0 |
| ODI |
0 |
80 |
1 |
61 |
42 |
55 |
0 |
0 |
| CDI |
0 |
64 |
3 |
55 |
88 |
127 |
59 |
7 |
| VCDI |
0 |
258 |
27 |
191 |
663 |
2558 |
6459 |
20370 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
75 |
327 |
2 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
71 |
9 |
40 |
6 |
0 |
0 |
0 |
| VODI |
0 |
125 |
4 |
140 |
45 |
8 |
0 |
0 |
| ODI |
0 |
104 |
1 |
62 |
48 |
52 |
0 |
0 |
| CDI |
0 |
95 |
3 |
53 |
78 |
124 |
60 |
12 |
| VCDI |
0 |
255 |
27 |
188 |
676 |
2565 |
6458 |
20365 |
|
Date: 2023-01-28:
| 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 |
47 |
309 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
72 |
7 |
14 |
2 |
0 |
0 |
0 |
| VODI |
0 |
71 |
3 |
25 |
92 |
3 |
0 |
0 |
| ODI |
0 |
98 |
1 |
17 |
106 |
40 |
0 |
0 |
| CDI |
0 |
81 |
4 |
15 |
105 |
126 |
34 |
6 |
| VCDI |
0 |
135 |
19 |
135 |
368 |
2226 |
7888 |
20033 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
47 |
307 |
3 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
62 |
5 |
14 |
2 |
0 |
0 |
0 |
| VODI |
0 |
59 |
2 |
23 |
100 |
3 |
0 |
0 |
| ODI |
0 |
63 |
1 |
13 |
107 |
39 |
0 |
0 |
| CDI |
0 |
91 |
2 |
14 |
95 |
139 |
36 |
7 |
| VCDI |
0 |
184 |
21 |
141 |
369 |
2214 |
7886 |
20032 |
|
Date: 2023-01-30:
| 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 |
80 |
310 |
9 |
11 |
0 |
0 |
0 |
0 |
| OW |
0 |
42 |
0 |
16 |
1 |
0 |
0 |
0 |
| VODI |
0 |
119 |
0 |
14 |
27 |
4 |
0 |
0 |
| ODI |
0 |
84 |
9 |
11 |
69 |
60 |
0 |
0 |
| CDI |
0 |
75 |
8 |
76 |
112 |
213 |
23 |
0 |
| VCDI |
0 |
61 |
6 |
50 |
154 |
1010 |
6908 |
22520 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
80 |
205 |
9 |
11 |
0 |
0 |
0 |
0 |
| OW |
0 |
48 |
0 |
16 |
0 |
0 |
0 |
0 |
| VODI |
0 |
66 |
0 |
11 |
23 |
6 |
0 |
0 |
| ODI |
0 |
48 |
0 |
4 |
55 |
133 |
1 |
0 |
| CDI |
0 |
57 |
0 |
2 |
24 |
116 |
28 |
12 |
| VCDI |
0 |
267 |
23 |
134 |
261 |
1032 |
6902 |
22508 |
|
Date: 2023-02-01:
| 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 |
78 |
270 |
3 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
40 |
1 |
12 |
0 |
0 |
0 |
0 |
| VODI |
0 |
41 |
0 |
10 |
20 |
2 |
0 |
0 |
| ODI |
0 |
44 |
0 |
0 |
67 |
28 |
0 |
0 |
| CDI |
0 |
99 |
2 |
2 |
46 |
224 |
55 |
6 |
| VCDI |
0 |
112 |
19 |
136 |
226 |
773 |
8103 |
21650 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
78 |
190 |
3 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
53 |
1 |
12 |
1 |
0 |
0 |
0 |
| VODI |
0 |
53 |
0 |
6 |
19 |
0 |
0 |
0 |
| ODI |
0 |
45 |
0 |
3 |
65 |
101 |
0 |
0 |
| CDI |
0 |
52 |
1 |
0 |
22 |
121 |
39 |
7 |
| VCDI |
0 |
213 |
20 |
138 |
252 |
805 |
8119 |
21649 |
|
Date: 2023-02-03:
| 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 |
307 |
9 |
20 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
4 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
38 |
1 |
19 |
28 |
0 |
0 |
0 |
| ODI |
0 |
27 |
1 |
17 |
64 |
16 |
0 |
0 |
| CDI |
0 |
41 |
2 |
6 |
68 |
102 |
27 |
9 |
| VCDI |
0 |
72 |
11 |
121 |
220 |
678 |
6099 |
24019 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
250 |
9 |
22 |
0 |
0 |
0 |
0 |
| OW |
0 |
61 |
2 |
8 |
0 |
0 |
0 |
0 |
| VODI |
0 |
56 |
2 |
14 |
36 |
2 |
0 |
0 |
| ODI |
0 |
35 |
2 |
23 |
80 |
24 |
2 |
0 |
| CDI |
0 |
46 |
2 |
7 |
50 |
96 |
40 |
0 |
| VCDI |
0 |
84 |
11 |
118 |
214 |
674 |
6084 |
24028 |
|
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