Validation of sea ice concentration - Asian sector
Bulletin date: 2023-02-02
Data source: OSI SAF N.H. AMSR 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 |
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 |
|
...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 |
0 |
299 |
22 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
58 |
9 |
12 |
0 |
0 |
0 |
0 |
| VODI |
0 |
55 |
9 |
13 |
24 |
1 |
0 |
0 |
| ODI |
0 |
40 |
30 |
11 |
86 |
90 |
2 |
0 |
| CDI |
0 |
56 |
46 |
13 |
56 |
117 |
44 |
7 |
| VCDI |
0 |
89 |
67 |
154 |
302 |
1864 |
9014 |
19491 |
|
...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 |
18 |
326 |
37 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
31 |
14 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
29 |
21 |
11 |
18 |
4 |
0 |
0 |
| ODI |
0 |
26 |
85 |
10 |
44 |
62 |
3 |
0 |
| CDI |
0 |
18 |
74 |
35 |
41 |
182 |
66 |
5 |
| VCDI |
0 |
17 |
69 |
147 |
206 |
873 |
9470 |
20129 |
|
...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 |
0 |
314 |
36 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
42 |
6 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
33 |
3 |
12 |
27 |
3 |
0 |
0 |
| ODI |
0 |
31 |
5 |
9 |
47 |
41 |
0 |
0 |
| CDI |
0 |
27 |
29 |
8 |
98 |
103 |
51 |
0 |
| VCDI |
0 |
33 |
94 |
143 |
239 |
795 |
11267 |
18576 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
317 |
37 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
40 |
5 |
10 |
2 |
0 |
0 |
0 |
| VODI |
0 |
34 |
3 |
11 |
28 |
7 |
0 |
0 |
| ODI |
0 |
29 |
4 |
8 |
40 |
31 |
0 |
0 |
| CDI |
0 |
25 |
26 |
7 |
100 |
96 |
52 |
0 |
| VCDI |
0 |
35 |
98 |
144 |
241 |
808 |
11266 |
18576 |
|
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 |
262 |
36 |
21 |
10 |
0 |
0 |
0 |
| OW |
0 |
43 |
10 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
36 |
11 |
14 |
5 |
0 |
0 |
0 |
| ODI |
0 |
25 |
10 |
15 |
63 |
11 |
0 |
0 |
| CDI |
0 |
7 |
22 |
18 |
69 |
82 |
19 |
0 |
| VCDI |
0 |
0 |
16 |
168 |
192 |
644 |
9670 |
20603 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
257 |
38 |
21 |
10 |
0 |
0 |
0 |
| OW |
0 |
54 |
12 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
33 |
8 |
21 |
8 |
0 |
0 |
0 |
| ODI |
0 |
22 |
9 |
9 |
79 |
19 |
0 |
0 |
| CDI |
0 |
7 |
19 |
15 |
46 |
88 |
22 |
0 |
| VCDI |
0 |
0 |
19 |
170 |
196 |
630 |
9667 |
20603 |
|
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 |
284 |
50 |
39 |
13 |
0 |
0 |
0 |
| OW |
0 |
31 |
6 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
25 |
13 |
10 |
5 |
0 |
0 |
0 |
| ODI |
0 |
9 |
17 |
9 |
8 |
29 |
6 |
0 |
| CDI |
0 |
0 |
15 |
32 |
6 |
27 |
35 |
0 |
| VCDI |
0 |
0 |
0 |
85 |
141 |
430 |
8155 |
22595 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
208 |
43 |
37 |
13 |
0 |
0 |
0 |
| OW |
0 |
50 |
8 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
40 |
8 |
11 |
0 |
0 |
0 |
0 |
| ODI |
0 |
28 |
7 |
6 |
10 |
6 |
0 |
0 |
| CDI |
0 |
22 |
9 |
7 |
5 |
58 |
113 |
0 |
| VCDI |
0 |
1 |
26 |
118 |
145 |
422 |
8083 |
22595 |
|
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 |
0 |
334 |
57 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
52 |
15 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
49 |
13 |
16 |
1 |
0 |
0 |
0 |
| ODI |
0 |
37 |
21 |
24 |
33 |
0 |
0 |
0 |
| CDI |
0 |
34 |
23 |
24 |
67 |
31 |
13 |
0 |
| VCDI |
0 |
98 |
129 |
208 |
511 |
1619 |
8498 |
20161 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
282 |
42 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
50 |
11 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
49 |
13 |
2 |
0 |
0 |
0 |
0 |
| ODI |
0 |
47 |
12 |
24 |
24 |
0 |
0 |
0 |
| CDI |
0 |
41 |
22 |
28 |
75 |
97 |
25 |
0 |
| VCDI |
0 |
135 |
158 |
218 |
513 |
1553 |
8486 |
20161 |
|
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 |
93 |
325 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
1 |
70 |
1 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
83 |
10 |
9 |
14 |
0 |
0 |
0 |
| ODI |
0 |
70 |
18 |
43 |
26 |
1 |
0 |
0 |
| CDI |
0 |
65 |
14 |
38 |
83 |
47 |
16 |
0 |
| VCDI |
0 |
241 |
168 |
349 |
577 |
2497 |
8564 |
18659 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
93 |
242 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
1 |
51 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
65 |
1 |
1 |
0 |
0 |
0 |
0 |
| ODI |
0 |
67 |
2 |
1 |
4 |
0 |
9 |
0 |
| CDI |
0 |
76 |
18 |
30 |
30 |
33 |
50 |
2 |
| VCDI |
0 |
353 |
190 |
407 |
666 |
2512 |
8521 |
18657 |
|
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