Validation of sea ice concentration - Asian sector
Bulletin date: 2023-01-19
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-01-13:
| 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 |
0 |
221 |
10 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
5 |
3 |
4 |
0 |
0 |
0 |
| VODI |
0 |
58 |
4 |
5 |
8 |
4 |
0 |
0 |
| ODI |
0 |
32 |
10 |
6 |
5 |
21 |
0 |
0 |
| CDI |
0 |
27 |
23 |
23 |
2 |
57 |
30 |
0 |
| VCDI |
0 |
19 |
93 |
200 |
200 |
801 |
6940 |
23218 |
|
...date precedes bulletin
|
Date: 2023-01-15:
| 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 |
0 |
198 |
12 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
49 |
8 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
51 |
9 |
8 |
12 |
0 |
0 |
0 |
| ODI |
0 |
45 |
6 |
3 |
15 |
16 |
0 |
0 |
| CDI |
0 |
48 |
17 |
4 |
7 |
77 |
6 |
0 |
| VCDI |
0 |
96 |
112 |
168 |
225 |
787 |
8540 |
21560 |
|
...date precedes bulletin
|
Date: 2023-01-17:
| 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 |
0 |
77 |
182 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
55 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
2 |
57 |
18 |
18 |
0 |
0 |
0 |
| ODI |
0 |
6 |
52 |
0 |
14 |
30 |
0 |
0 |
| CDI |
0 |
27 |
50 |
7 |
23 |
69 |
9 |
1 |
| VCDI |
0 |
34 |
251 |
166 |
318 |
1208 |
7581 |
21808 |
|
...date precedes bulletin
|
Date: 2023-01-19:
| 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 |
0 |
234 |
23 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
61 |
15 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
56 |
17 |
12 |
22 |
5 |
0 |
0 |
| ODI |
0 |
53 |
1 |
6 |
8 |
30 |
0 |
0 |
| CDI |
0 |
65 |
6 |
16 |
29 |
65 |
2 |
11 |
| VCDI |
0 |
131 |
142 |
193 |
396 |
1727 |
7761 |
20986 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
249 |
26 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
60 |
16 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
59 |
14 |
11 |
9 |
1 |
0 |
0 |
| ODI |
0 |
56 |
2 |
12 |
17 |
22 |
0 |
0 |
| CDI |
0 |
56 |
8 |
16 |
31 |
56 |
2 |
11 |
| VCDI |
0 |
120 |
138 |
191 |
398 |
1748 |
7761 |
20986 |
|
Date: 2023-01-21:
| 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 |
0 |
267 |
19 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
55 |
21 |
11 |
1 |
0 |
0 |
0 |
| VODI |
0 |
62 |
18 |
41 |
25 |
6 |
0 |
0 |
| ODI |
0 |
56 |
14 |
18 |
38 |
11 |
0 |
0 |
| CDI |
0 |
71 |
25 |
57 |
77 |
41 |
11 |
0 |
| VCDI |
0 |
122 |
198 |
286 |
552 |
1905 |
7650 |
20424 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
279 |
17 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
57 |
30 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
68 |
17 |
42 |
12 |
0 |
0 |
0 |
| ODI |
0 |
67 |
10 |
26 |
48 |
9 |
0 |
0 |
| CDI |
0 |
70 |
31 |
59 |
82 |
42 |
13 |
0 |
| VCDI |
0 |
92 |
190 |
282 |
551 |
1912 |
7648 |
20424 |
|
Date: 2023-01-23:
| 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 |
0 |
344 |
90 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
95 |
5 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
64 |
27 |
64 |
40 |
3 |
0 |
0 |
| ODI |
0 |
45 |
9 |
58 |
54 |
7 |
0 |
0 |
| CDI |
0 |
51 |
11 |
59 |
64 |
73 |
15 |
0 |
| VCDI |
0 |
141 |
81 |
219 |
375 |
1753 |
6815 |
21509 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
265 |
74 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
78 |
11 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
69 |
11 |
39 |
13 |
0 |
0 |
0 |
| ODI |
0 |
58 |
14 |
34 |
50 |
18 |
4 |
0 |
| CDI |
0 |
71 |
26 |
55 |
64 |
65 |
47 |
0 |
| VCDI |
0 |
199 |
87 |
280 |
406 |
1753 |
6779 |
21509 |
|
Date: 2023-01-25:
| 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 |
0 |
424 |
9 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
81 |
30 |
35 |
10 |
0 |
0 |
0 |
| VODI |
0 |
135 |
29 |
96 |
65 |
3 |
0 |
0 |
| ODI |
0 |
54 |
23 |
54 |
62 |
23 |
0 |
0 |
| CDI |
0 |
45 |
17 |
85 |
83 |
81 |
39 |
5 |
| VCDI |
0 |
158 |
114 |
329 |
736 |
2418 |
7819 |
19020 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
382 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
61 |
14 |
2 |
2 |
0 |
0 |
0 |
| VODI |
0 |
100 |
25 |
53 |
55 |
10 |
0 |
0 |
| ODI |
0 |
64 |
33 |
68 |
58 |
54 |
2 |
0 |
| CDI |
0 |
78 |
29 |
109 |
77 |
90 |
40 |
40 |
| VCDI |
0 |
212 |
119 |
367 |
764 |
2371 |
7816 |
18985 |
|
Date: 2023-01-27:
| 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 |
0 |
373 |
15 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
54 |
15 |
23 |
2 |
1 |
0 |
0 |
| VODI |
0 |
83 |
25 |
122 |
54 |
11 |
0 |
0 |
| ODI |
0 |
86 |
25 |
65 |
45 |
53 |
3 |
0 |
| CDI |
0 |
44 |
22 |
67 |
57 |
167 |
91 |
0 |
| VCDI |
0 |
103 |
68 |
178 |
689 |
2211 |
8600 |
18730 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
283 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
51 |
12 |
1 |
1 |
0 |
0 |
0 |
| VODI |
0 |
67 |
17 |
46 |
7 |
25 |
0 |
0 |
| ODI |
0 |
60 |
15 |
59 |
54 |
76 |
24 |
0 |
| CDI |
0 |
76 |
28 |
112 |
51 |
129 |
139 |
6 |
| VCDI |
0 |
206 |
96 |
237 |
734 |
2213 |
8531 |
18724 |
|
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