Validation of sea ice concentration - Asian sector
Bulletin date: 2023-02-09
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
287 |
42 |
5 |
2 |
0 |
0 |
0 |
| OW |
0 |
37 |
21 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
17 |
28 |
23 |
18 |
0 |
0 |
0 |
| ODI |
0 |
5 |
24 |
18 |
53 |
24 |
1 |
0 |
| CDI |
0 |
7 |
34 |
12 |
68 |
101 |
28 |
5 |
| VCDI |
0 |
0 |
54 |
158 |
205 |
708 |
9069 |
21026 |
|
...date precedes bulletin
|
Date: 2023-02-05:
| 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 |
219 |
53 |
37 |
10 |
0 |
0 |
0 |
| OW |
0 |
39 |
16 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
38 |
9 |
14 |
1 |
0 |
0 |
0 |
| ODI |
0 |
20 |
7 |
9 |
13 |
33 |
0 |
0 |
| CDI |
0 |
11 |
19 |
11 |
18 |
110 |
41 |
0 |
| VCDI |
0 |
0 |
10 |
116 |
170 |
566 |
9177 |
21315 |
|
...date precedes bulletin
|
Date: 2023-02-07:
| 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 |
51 |
300 |
42 |
0 |
0 |
0 |
0 |
| OW |
0 |
5 |
51 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
3 |
44 |
16 |
1 |
0 |
0 |
0 |
| ODI |
0 |
0 |
38 |
9 |
18 |
14 |
2 |
0 |
| CDI |
0 |
0 |
34 |
23 |
24 |
33 |
21 |
0 |
| VCDI |
0 |
0 |
84 |
150 |
221 |
791 |
8271 |
21832 |
|
...date precedes bulletin
|
Date: 2023-02-09:
| 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 |
175 |
241 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
44 |
29 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
38 |
48 |
2 |
3 |
1 |
0 |
0 |
| ODI |
0 |
29 |
40 |
26 |
19 |
9 |
0 |
0 |
| CDI |
0 |
26 |
44 |
41 |
45 |
59 |
9 |
0 |
| VCDI |
0 |
61 |
219 |
305 |
487 |
1993 |
8127 |
19962 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
173 |
241 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
46 |
30 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
37 |
45 |
4 |
6 |
2 |
0 |
0 |
| ODI |
0 |
26 |
41 |
24 |
18 |
11 |
0 |
0 |
| CDI |
0 |
26 |
42 |
42 |
43 |
75 |
10 |
0 |
| VCDI |
0 |
65 |
222 |
304 |
487 |
1974 |
8126 |
19962 |
|
Date: 2023-02-11:
| 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 |
379 |
12 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
65 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
65 |
21 |
11 |
20 |
2 |
0 |
0 |
| ODI |
0 |
48 |
38 |
39 |
16 |
3 |
0 |
0 |
| CDI |
0 |
44 |
46 |
57 |
61 |
59 |
11 |
0 |
| VCDI |
0 |
136 |
339 |
323 |
518 |
2579 |
7926 |
19264 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
375 |
12 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
66 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
64 |
30 |
28 |
25 |
4 |
0 |
0 |
| ODI |
0 |
46 |
30 |
39 |
20 |
5 |
0 |
0 |
| CDI |
0 |
43 |
39 |
48 |
41 |
60 |
16 |
0 |
| VCDI |
0 |
143 |
345 |
315 |
529 |
2574 |
7921 |
19264 |
|
Date: 2023-02-13:
| 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 |
356 |
24 |
23 |
7 |
0 |
0 |
0 |
| OW |
0 |
40 |
12 |
4 |
2 |
0 |
0 |
0 |
| VODI |
0 |
54 |
16 |
48 |
20 |
8 |
0 |
0 |
| ODI |
0 |
34 |
24 |
64 |
34 |
11 |
1 |
0 |
| CDI |
0 |
79 |
16 |
65 |
57 |
33 |
45 |
0 |
| VCDI |
0 |
78 |
49 |
234 |
447 |
1872 |
9749 |
18576 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
298 |
22 |
23 |
7 |
0 |
0 |
0 |
| OW |
0 |
62 |
4 |
1 |
2 |
0 |
0 |
0 |
| VODI |
0 |
48 |
18 |
30 |
19 |
6 |
0 |
0 |
| ODI |
0 |
32 |
12 |
79 |
68 |
19 |
1 |
0 |
| CDI |
0 |
28 |
19 |
43 |
38 |
46 |
55 |
0 |
| VCDI |
0 |
173 |
66 |
262 |
433 |
1853 |
9739 |
18576 |
|
Date: 2023-02-15:
| 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 |
201 |
166 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
34 |
25 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
22 |
28 |
19 |
12 |
7 |
0 |
0 |
| ODI |
0 |
9 |
23 |
20 |
55 |
22 |
13 |
0 |
| CDI |
0 |
12 |
39 |
17 |
57 |
50 |
75 |
0 |
| VCDI |
0 |
20 |
44 |
121 |
336 |
809 |
10987 |
18858 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
161 |
155 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
52 |
22 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
36 |
27 |
6 |
1 |
0 |
0 |
0 |
| ODI |
0 |
13 |
17 |
18 |
84 |
56 |
17 |
0 |
| CDI |
0 |
5 |
34 |
22 |
60 |
74 |
85 |
5 |
| VCDI |
0 |
31 |
70 |
132 |
315 |
758 |
10973 |
18853 |
|
Date: 2023-02-17:
| 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 |
284 |
118 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
40 |
24 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
37 |
35 |
39 |
33 |
7 |
0 |
0 |
| ODI |
0 |
39 |
12 |
63 |
33 |
48 |
0 |
0 |
| CDI |
0 |
42 |
14 |
62 |
32 |
101 |
9 |
8 |
| VCDI |
0 |
158 |
60 |
308 |
339 |
1141 |
8214 |
20779 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
229 |
100 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
59 |
22 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
41 |
23 |
5 |
3 |
3 |
0 |
0 |
| ODI |
0 |
33 |
19 |
47 |
33 |
16 |
0 |
0 |
| CDI |
0 |
34 |
22 |
102 |
50 |
27 |
8 |
0 |
| VCDI |
0 |
204 |
77 |
321 |
351 |
1251 |
8215 |
20787 |
|
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