Validation of sea ice concentration - Asian sector
Bulletin date: 2023-02-02
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
50 |
337 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
72 |
5 |
15 |
3 |
0 |
0 |
0 |
| VODI |
0 |
99 |
4 |
139 |
52 |
1 |
0 |
0 |
| ODI |
0 |
107 |
2 |
67 |
55 |
46 |
0 |
0 |
| CDI |
0 |
66 |
3 |
44 |
75 |
170 |
68 |
22 |
| VCDI |
0 |
152 |
16 |
137 |
615 |
2353 |
7142 |
20164 |
|
...date precedes bulletin
|
Date: 2023-01-29:
| 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 |
273 |
1 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
58 |
4 |
17 |
0 |
0 |
0 |
0 |
| VODI |
0 |
63 |
1 |
18 |
20 |
0 |
0 |
0 |
| ODI |
0 |
68 |
1 |
8 |
120 |
62 |
0 |
0 |
| CDI |
0 |
99 |
2 |
10 |
58 |
134 |
23 |
13 |
| VCDI |
0 |
144 |
20 |
136 |
300 |
1755 |
6965 |
21661 |
|
...date precedes bulletin
|
Date: 2023-01-31:
| 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 |
284 |
6 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
39 |
2 |
13 |
1 |
0 |
0 |
0 |
| VODI |
0 |
47 |
0 |
13 |
22 |
1 |
0 |
0 |
| ODI |
0 |
110 |
0 |
3 |
69 |
48 |
0 |
0 |
| CDI |
0 |
88 |
9 |
25 |
46 |
199 |
46 |
8 |
| VCDI |
0 |
84 |
13 |
110 |
211 |
799 |
6925 |
22769 |
|
...date precedes bulletin
|
Date: 2023-02-02:
| 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 |
62 |
274 |
5 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
42 |
2 |
13 |
0 |
0 |
0 |
0 |
| VODI |
0 |
35 |
0 |
13 |
30 |
0 |
0 |
0 |
| ODI |
0 |
36 |
1 |
4 |
75 |
17 |
0 |
0 |
| CDI |
0 |
53 |
2 |
4 |
100 |
102 |
50 |
5 |
| VCDI |
0 |
122 |
16 |
114 |
245 |
822 |
6582 |
23246 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62 |
277 |
7 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
41 |
0 |
16 |
0 |
0 |
0 |
0 |
| VODI |
0 |
35 |
0 |
12 |
35 |
1 |
0 |
0 |
| ODI |
0 |
33 |
1 |
2 |
63 |
13 |
0 |
0 |
| CDI |
0 |
48 |
2 |
5 |
104 |
93 |
49 |
5 |
| VCDI |
0 |
128 |
16 |
113 |
248 |
834 |
6583 |
23246 |
|
Date: 2023-02-04:
| 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 |
294 |
10 |
25 |
0 |
0 |
0 |
0 |
| OW |
0 |
48 |
1 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
33 |
6 |
17 |
10 |
0 |
0 |
0 |
| ODI |
0 |
29 |
0 |
22 |
66 |
7 |
0 |
0 |
| CDI |
0 |
21 |
5 |
13 |
75 |
92 |
7 |
4 |
| VCDI |
0 |
16 |
4 |
121 |
236 |
597 |
4873 |
25446 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
291 |
9 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
56 |
4 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
31 |
4 |
17 |
18 |
0 |
0 |
0 |
| ODI |
0 |
26 |
0 |
19 |
73 |
20 |
0 |
0 |
| CDI |
0 |
18 |
5 |
11 |
57 |
93 |
9 |
4 |
| VCDI |
0 |
19 |
4 |
123 |
239 |
583 |
4871 |
25446 |
|
Date: 2023-02-06:
| 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 |
337 |
11 |
37 |
1 |
0 |
0 |
0 |
| OW |
0 |
29 |
1 |
14 |
0 |
0 |
0 |
0 |
| VODI |
0 |
26 |
5 |
16 |
6 |
0 |
0 |
0 |
| ODI |
0 |
15 |
1 |
17 |
27 |
18 |
0 |
0 |
| CDI |
0 |
14 |
6 |
25 |
11 |
46 |
7 |
6 |
| VCDI |
0 |
0 |
1 |
65 |
172 |
371 |
4107 |
26690 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
267 |
7 |
26 |
1 |
0 |
0 |
0 |
| OW |
0 |
41 |
5 |
15 |
0 |
0 |
0 |
0 |
| VODI |
0 |
40 |
1 |
18 |
0 |
0 |
0 |
0 |
| ODI |
0 |
27 |
1 |
10 |
13 |
6 |
0 |
0 |
| CDI |
0 |
26 |
2 |
9 |
25 |
50 |
87 |
15 |
| VCDI |
0 |
20 |
9 |
96 |
178 |
379 |
4027 |
26681 |
|
Date: 2023-02-08:
| 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 |
106 |
291 |
2 |
6 |
0 |
0 |
0 |
0 |
| OW |
1 |
55 |
4 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
55 |
2 |
19 |
3 |
0 |
0 |
0 |
| ODI |
0 |
48 |
0 |
26 |
37 |
4 |
0 |
0 |
| CDI |
0 |
55 |
0 |
12 |
69 |
41 |
15 |
0 |
| VCDI |
0 |
197 |
19 |
194 |
452 |
1590 |
6316 |
22456 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
103 |
234 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
4 |
52 |
0 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
49 |
4 |
9 |
2 |
0 |
0 |
0 |
| ODI |
0 |
48 |
2 |
16 |
33 |
8 |
0 |
0 |
| CDI |
0 |
56 |
1 |
29 |
65 |
112 |
25 |
0 |
| VCDI |
0 |
262 |
19 |
205 |
461 |
1515 |
6306 |
22456 |
|
Date: 2023-02-10:
| 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 |
185 |
232 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
1 |
69 |
0 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
85 |
1 |
15 |
15 |
0 |
0 |
0 |
| ODI |
0 |
88 |
5 |
39 |
25 |
1 |
0 |
0 |
| CDI |
0 |
74 |
3 |
35 |
77 |
67 |
7 |
0 |
| VCDI |
0 |
423 |
26 |
236 |
629 |
2813 |
6346 |
20582 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
182 |
153 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
4 |
48 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
63 |
1 |
2 |
1 |
0 |
0 |
0 |
| ODI |
0 |
66 |
0 |
3 |
5 |
0 |
9 |
0 |
| CDI |
0 |
85 |
4 |
32 |
35 |
46 |
35 |
2 |
| VCDI |
0 |
556 |
31 |
290 |
705 |
2835 |
6309 |
20580 |
|
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