Validation of sea ice concentration - Asian sector
Bulletin date: 2022-12-22
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-12-16:
| 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 |
0 |
1139 |
21 |
81 |
0 |
0 |
0 |
0 |
| OW |
0 |
200 |
6 |
71 |
22 |
0 |
0 |
0 |
| VODI |
0 |
113 |
23 |
96 |
67 |
0 |
0 |
0 |
| ODI |
0 |
9 |
4 |
99 |
108 |
6 |
4 |
0 |
| CDI |
0 |
1 |
0 |
57 |
101 |
96 |
30 |
0 |
| VCDI |
0 |
0 |
0 |
36 |
330 |
1134 |
6173 |
22055 |
|
...date precedes bulletin
|
Date: 2022-12-18:
| 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 |
0 |
1031 |
17 |
89 |
52 |
0 |
0 |
0 |
| OW |
0 |
188 |
12 |
94 |
35 |
0 |
0 |
0 |
| VODI |
0 |
105 |
11 |
135 |
70 |
7 |
0 |
0 |
| ODI |
0 |
21 |
5 |
78 |
96 |
53 |
10 |
0 |
| CDI |
0 |
10 |
3 |
49 |
63 |
172 |
38 |
1 |
| VCDI |
0 |
0 |
2 |
116 |
359 |
1029 |
9025 |
19106 |
|
...date precedes bulletin
|
Date: 2022-12-20:
| 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 |
0 |
1089 |
21 |
97 |
41 |
0 |
0 |
0 |
| OW |
0 |
82 |
23 |
134 |
34 |
0 |
0 |
0 |
| VODI |
0 |
21 |
8 |
181 |
70 |
2 |
0 |
0 |
| ODI |
0 |
11 |
1 |
54 |
191 |
28 |
0 |
0 |
| CDI |
0 |
8 |
4 |
26 |
100 |
159 |
54 |
10 |
| VCDI |
0 |
16 |
5 |
88 |
263 |
719 |
5025 |
23517 |
|
...date precedes bulletin
|
Date: 2022-12-22:
| 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 |
845 |
18 |
87 |
52 |
30 |
0 |
0 |
| OW |
0 |
47 |
11 |
82 |
28 |
23 |
0 |
0 |
| VODI |
0 |
22 |
8 |
119 |
115 |
16 |
0 |
0 |
| ODI |
0 |
6 |
1 |
27 |
171 |
33 |
0 |
0 |
| CDI |
0 |
1 |
1 |
15 |
99 |
195 |
23 |
100 |
| VCDI |
0 |
0 |
0 |
14 |
203 |
665 |
7276 |
21749 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
850 |
19 |
101 |
56 |
35 |
0 |
0 |
| OW |
0 |
42 |
12 |
84 |
44 |
22 |
0 |
0 |
| VODI |
0 |
22 |
7 |
103 |
148 |
17 |
0 |
0 |
| ODI |
0 |
6 |
0 |
29 |
125 |
83 |
0 |
0 |
| CDI |
0 |
1 |
1 |
16 |
99 |
144 |
25 |
116 |
| VCDI |
0 |
0 |
0 |
11 |
196 |
661 |
7274 |
21733 |
|
Date: 2022-12-24:
| 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 |
3 |
752 |
12 |
75 |
45 |
36 |
3 |
0 |
| OW |
0 |
90 |
19 |
62 |
14 |
16 |
10 |
0 |
| VODI |
0 |
32 |
10 |
121 |
75 |
9 |
7 |
0 |
| ODI |
0 |
10 |
2 |
43 |
158 |
16 |
9 |
0 |
| CDI |
0 |
9 |
4 |
17 |
139 |
210 |
42 |
15 |
| VCDI |
0 |
2 |
2 |
69 |
168 |
1434 |
9282 |
19060 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3 |
768 |
14 |
87 |
48 |
37 |
6 |
0 |
| OW |
0 |
84 |
18 |
66 |
16 |
17 |
8 |
0 |
| VODI |
0 |
25 |
10 |
115 |
108 |
14 |
8 |
0 |
| ODI |
0 |
9 |
2 |
37 |
141 |
41 |
7 |
0 |
| CDI |
0 |
9 |
5 |
17 |
116 |
182 |
69 |
15 |
| VCDI |
0 |
0 |
0 |
65 |
170 |
1430 |
9255 |
19060 |
|
Date: 2022-12-26:
| 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 |
11 |
732 |
16 |
62 |
11 |
0 |
0 |
0 |
| OW |
0 |
86 |
9 |
79 |
39 |
0 |
0 |
0 |
| VODI |
0 |
36 |
6 |
76 |
98 |
10 |
0 |
0 |
| ODI |
0 |
24 |
2 |
26 |
121 |
43 |
0 |
0 |
| CDI |
0 |
17 |
0 |
17 |
140 |
183 |
5 |
8 |
| VCDI |
0 |
63 |
8 |
69 |
168 |
848 |
7403 |
21666 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11 |
649 |
10 |
49 |
37 |
0 |
0 |
0 |
| OW |
0 |
130 |
7 |
64 |
32 |
11 |
0 |
0 |
| VODI |
0 |
49 |
12 |
77 |
73 |
33 |
0 |
0 |
| ODI |
0 |
33 |
2 |
40 |
118 |
58 |
4 |
0 |
| CDI |
0 |
31 |
2 |
20 |
134 |
202 |
23 |
25 |
| VCDI |
0 |
66 |
8 |
79 |
183 |
780 |
7381 |
21649 |
|
Date: 2022-12-28:
| 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 |
16 |
617 |
17 |
90 |
20 |
2 |
0 |
0 |
| OW |
0 |
54 |
4 |
70 |
80 |
9 |
0 |
0 |
| VODI |
0 |
25 |
2 |
49 |
90 |
42 |
0 |
0 |
| ODI |
0 |
13 |
2 |
22 |
59 |
92 |
0 |
0 |
| CDI |
0 |
17 |
1 |
22 |
35 |
208 |
16 |
13 |
| VCDI |
0 |
14 |
6 |
68 |
160 |
413 |
3565 |
26169 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16 |
549 |
11 |
105 |
69 |
20 |
0 |
0 |
| OW |
0 |
101 |
6 |
37 |
77 |
38 |
0 |
0 |
| VODI |
0 |
37 |
4 |
51 |
66 |
102 |
7 |
0 |
| ODI |
0 |
18 |
2 |
31 |
27 |
88 |
25 |
0 |
| CDI |
0 |
18 |
3 |
24 |
34 |
178 |
101 |
37 |
| VCDI |
0 |
17 |
6 |
73 |
171 |
340 |
3448 |
26145 |
|
Date: 2022-12-30:
| 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 |
11 |
597 |
16 |
65 |
35 |
0 |
0 |
0 |
| OW |
0 |
156 |
7 |
57 |
49 |
4 |
0 |
0 |
| VODI |
0 |
126 |
7 |
56 |
80 |
17 |
0 |
0 |
| ODI |
0 |
67 |
7 |
45 |
79 |
19 |
0 |
0 |
| CDI |
0 |
59 |
2 |
40 |
105 |
156 |
50 |
0 |
| VCDI |
0 |
133 |
15 |
129 |
331 |
1472 |
7113 |
20977 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11 |
563 |
16 |
97 |
110 |
0 |
0 |
0 |
| OW |
0 |
155 |
15 |
56 |
64 |
12 |
0 |
0 |
| VODI |
0 |
79 |
4 |
72 |
96 |
54 |
0 |
0 |
| ODI |
0 |
50 |
1 |
14 |
82 |
87 |
15 |
0 |
| CDI |
0 |
69 |
0 |
4 |
51 |
244 |
60 |
21 |
| VCDI |
0 |
222 |
18 |
149 |
276 |
1271 |
7088 |
20956 |
|
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