Validation of sea ice concentration - Asian sector
Bulletin date: 2023-01-26
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-01-20:
| 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 |
79 |
171 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
22 |
48 |
9 |
2 |
0 |
0 |
0 |
| VODI |
0 |
8 |
68 |
21 |
24 |
6 |
0 |
0 |
| ODI |
0 |
16 |
43 |
9 |
33 |
19 |
0 |
0 |
| CDI |
0 |
32 |
51 |
29 |
60 |
87 |
3 |
2 |
| VCDI |
0 |
105 |
159 |
196 |
432 |
1584 |
7396 |
21362 |
|
...date precedes bulletin
|
Date: 2023-01-22:
| 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 |
27 |
267 |
5 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
66 |
12 |
8 |
1 |
0 |
0 |
0 |
| VODI |
0 |
71 |
12 |
44 |
23 |
4 |
0 |
0 |
| ODI |
0 |
57 |
20 |
22 |
30 |
10 |
0 |
0 |
| CDI |
0 |
77 |
20 |
54 |
61 |
56 |
18 |
0 |
| VCDI |
0 |
205 |
87 |
290 |
596 |
1639 |
8083 |
20217 |
|
...date precedes bulletin
|
Date: 2023-01-24:
| 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 |
41 |
389 |
9 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
100 |
25 |
15 |
2 |
0 |
0 |
0 |
| VODI |
0 |
94 |
25 |
91 |
57 |
0 |
0 |
0 |
| ODI |
0 |
46 |
22 |
62 |
45 |
6 |
0 |
0 |
| CDI |
0 |
40 |
19 |
80 |
88 |
69 |
10 |
1 |
| VCDI |
0 |
175 |
96 |
292 |
691 |
2060 |
7882 |
19550 |
|
...date precedes bulletin
|
Date: 2023-01-26:
| 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 |
0 |
400 |
4 |
0 |
1 |
0 |
0 |
0 |
| OW |
0 |
64 |
23 |
58 |
8 |
0 |
0 |
0 |
| VODI |
0 |
136 |
45 |
105 |
47 |
21 |
2 |
0 |
| ODI |
0 |
66 |
31 |
47 |
52 |
43 |
0 |
0 |
| CDI |
0 |
46 |
21 |
77 |
73 |
120 |
66 |
0 |
| VCDI |
0 |
120 |
108 |
338 |
623 |
2312 |
8492 |
18533 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
398 |
7 |
1 |
2 |
0 |
0 |
0 |
| OW |
0 |
54 |
18 |
49 |
5 |
0 |
0 |
0 |
| VODI |
0 |
105 |
39 |
116 |
43 |
17 |
2 |
0 |
| ODI |
0 |
88 |
35 |
49 |
50 |
45 |
0 |
0 |
| CDI |
0 |
72 |
27 |
70 |
70 |
113 |
70 |
3 |
| VCDI |
0 |
115 |
106 |
340 |
634 |
2321 |
8488 |
18530 |
|
Date: 2023-01-28:
| 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 |
5 |
327 |
24 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
63 |
16 |
16 |
0 |
0 |
0 |
0 |
| VODI |
0 |
68 |
6 |
33 |
86 |
1 |
0 |
0 |
| ODI |
0 |
69 |
31 |
44 |
78 |
37 |
3 |
0 |
| CDI |
0 |
59 |
22 |
42 |
79 |
125 |
38 |
6 |
| VCDI |
0 |
89 |
65 |
153 |
464 |
2109 |
9850 |
18074 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5 |
323 |
27 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
59 |
12 |
12 |
0 |
0 |
0 |
0 |
| VODI |
0 |
56 |
4 |
33 |
93 |
1 |
0 |
0 |
| ODI |
0 |
49 |
17 |
39 |
81 |
35 |
2 |
0 |
| CDI |
0 |
69 |
24 |
33 |
73 |
139 |
39 |
7 |
| VCDI |
0 |
119 |
80 |
168 |
460 |
2097 |
9850 |
18073 |
|
Date: 2023-01-30:
| 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 |
0 |
316 |
90 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
29 |
18 |
9 |
3 |
0 |
0 |
0 |
| VODI |
0 |
44 |
76 |
13 |
24 |
7 |
0 |
0 |
| ODI |
0 |
46 |
47 |
18 |
48 |
71 |
3 |
0 |
| CDI |
0 |
49 |
32 |
87 |
94 |
178 |
67 |
0 |
| VCDI |
0 |
29 |
42 |
59 |
153 |
1069 |
8012 |
21345 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
236 |
65 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
42 |
10 |
8 |
4 |
0 |
0 |
0 |
| VODI |
0 |
51 |
18 |
9 |
21 |
7 |
0 |
0 |
| ODI |
0 |
28 |
22 |
5 |
35 |
142 |
9 |
0 |
| CDI |
0 |
22 |
35 |
5 |
20 |
84 |
68 |
5 |
| VCDI |
0 |
134 |
155 |
159 |
242 |
1092 |
8005 |
21340 |
|
Date: 2023-02-01:
| 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 |
316 |
44 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
31 |
13 |
8 |
1 |
0 |
0 |
0 |
| VODI |
0 |
23 |
19 |
6 |
20 |
5 |
0 |
0 |
| ODI |
0 |
14 |
30 |
13 |
29 |
50 |
3 |
0 |
| CDI |
0 |
19 |
78 |
13 |
49 |
213 |
61 |
1 |
| VCDI |
0 |
46 |
69 |
161 |
236 |
829 |
12351 |
17327 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
253 |
27 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
37 |
18 |
8 |
4 |
0 |
0 |
0 |
| VODI |
0 |
38 |
17 |
2 |
17 |
4 |
0 |
0 |
| ODI |
0 |
35 |
11 |
5 |
36 |
123 |
4 |
0 |
| CDI |
0 |
17 |
36 |
11 |
21 |
105 |
49 |
3 |
| VCDI |
0 |
69 |
144 |
174 |
257 |
865 |
12362 |
17325 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
243 |
31 |
5 |
2 |
0 |
0 |
0 |
| OW |
0 |
51 |
20 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
30 |
30 |
26 |
21 |
3 |
0 |
0 |
| ODI |
0 |
12 |
27 |
19 |
69 |
33 |
6 |
0 |
| CDI |
0 |
14 |
36 |
10 |
46 |
85 |
50 |
0 |
| VCDI |
0 |
3 |
59 |
158 |
208 |
712 |
9042 |
21031 |
|
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