Validation of sea ice concentration - Asian sector
Bulletin date: 2023-02-16
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2023-02-12:
| 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 |
324 |
22 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
58 |
1 |
1 |
1 |
0 |
0 |
0 |
| VODI |
0 |
46 |
25 |
15 |
20 |
4 |
0 |
0 |
| ODI |
0 |
43 |
25 |
46 |
28 |
10 |
0 |
0 |
| CDI |
0 |
46 |
26 |
42 |
38 |
54 |
11 |
0 |
| VCDI |
0 |
177 |
173 |
397 |
391 |
2201 |
8681 |
19150 |
|
...date precedes bulletin
|
Date: 2023-02-14:
| 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 |
332 |
35 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
42 |
11 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
29 |
11 |
34 |
30 |
1 |
0 |
0 |
| ODI |
0 |
21 |
20 |
53 |
35 |
32 |
1 |
0 |
| CDI |
0 |
39 |
13 |
32 |
61 |
59 |
83 |
1 |
| VCDI |
0 |
45 |
72 |
163 |
449 |
1223 |
11413 |
17737 |
|
...date precedes bulletin
|
Date: 2023-02-16:
| 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 |
391 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
5 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
37 |
20 |
27 |
22 |
0 |
0 |
0 |
| ODI |
0 |
28 |
15 |
60 |
24 |
23 |
0 |
0 |
| CDI |
0 |
40 |
19 |
63 |
23 |
86 |
74 |
1 |
| VCDI |
0 |
66 |
111 |
272 |
423 |
1408 |
9365 |
19432 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
386 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
52 |
7 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
41 |
20 |
20 |
18 |
0 |
0 |
0 |
| ODI |
0 |
29 |
17 |
58 |
27 |
16 |
0 |
0 |
| CDI |
0 |
39 |
14 |
58 |
16 |
78 |
77 |
1 |
| VCDI |
0 |
62 |
112 |
286 |
431 |
1423 |
9362 |
19432 |
|
Date: 2023-02-18:
| 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 |
34 |
372 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
1 |
63 |
7 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
71 |
37 |
50 |
9 |
2 |
0 |
0 |
| ODI |
0 |
48 |
21 |
49 |
106 |
19 |
0 |
0 |
| CDI |
0 |
59 |
10 |
57 |
103 |
86 |
12 |
0 |
| VCDI |
0 |
195 |
92 |
331 |
430 |
1645 |
9230 |
18938 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
33 |
353 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
2 |
64 |
7 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
87 |
29 |
37 |
3 |
1 |
0 |
0 |
| ODI |
0 |
56 |
26 |
50 |
96 |
16 |
0 |
0 |
| CDI |
0 |
52 |
12 |
60 |
111 |
78 |
9 |
0 |
| VCDI |
0 |
196 |
93 |
341 |
438 |
1657 |
9233 |
18938 |
|
Date: 2023-02-20:
| 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 |
426 |
9 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
60 |
5 |
33 |
5 |
0 |
0 |
0 |
| VODI |
0 |
119 |
46 |
94 |
11 |
2 |
0 |
0 |
| ODI |
0 |
47 |
61 |
110 |
107 |
38 |
0 |
0 |
| CDI |
0 |
64 |
30 |
86 |
168 |
105 |
60 |
11 |
| VCDI |
0 |
75 |
51 |
228 |
433 |
1743 |
11047 |
16805 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
329 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
66 |
6 |
9 |
2 |
0 |
0 |
0 |
| VODI |
0 |
94 |
38 |
42 |
3 |
0 |
0 |
0 |
| ODI |
0 |
80 |
48 |
101 |
45 |
16 |
3 |
0 |
| CDI |
0 |
65 |
22 |
94 |
148 |
134 |
106 |
13 |
| VCDI |
0 |
157 |
87 |
308 |
526 |
1738 |
10998 |
16803 |
|
Date: 2023-02-22:
| 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 |
0 |
337 |
39 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
42 |
7 |
14 |
6 |
1 |
0 |
0 |
| VODI |
0 |
24 |
24 |
53 |
46 |
5 |
0 |
0 |
| ODI |
0 |
4 |
36 |
102 |
100 |
18 |
6 |
0 |
| CDI |
0 |
2 |
26 |
89 |
168 |
95 |
23 |
8 |
| VCDI |
0 |
0 |
19 |
130 |
494 |
742 |
9522 |
19895 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
269 |
19 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
55 |
20 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
45 |
5 |
18 |
31 |
1 |
0 |
0 |
| ODI |
0 |
35 |
19 |
89 |
73 |
10 |
0 |
0 |
| CDI |
0 |
5 |
46 |
80 |
132 |
81 |
33 |
2 |
| VCDI |
0 |
0 |
42 |
200 |
578 |
769 |
9518 |
19901 |
|
Date: 2023-02-24:
| 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 |
0 |
306 |
25 |
33 |
11 |
0 |
0 |
0 |
| OW |
0 |
42 |
5 |
6 |
3 |
0 |
0 |
0 |
| VODI |
0 |
47 |
12 |
11 |
4 |
0 |
0 |
0 |
| ODI |
0 |
42 |
9 |
22 |
27 |
19 |
0 |
0 |
| CDI |
0 |
64 |
11 |
27 |
82 |
94 |
43 |
1 |
| VCDI |
0 |
131 |
69 |
125 |
225 |
1132 |
11722 |
17732 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
287 |
19 |
22 |
2 |
0 |
0 |
0 |
| OW |
0 |
55 |
7 |
11 |
11 |
0 |
0 |
0 |
| VODI |
0 |
57 |
16 |
9 |
1 |
0 |
0 |
0 |
| ODI |
0 |
51 |
15 |
31 |
42 |
40 |
9 |
0 |
| CDI |
0 |
49 |
10 |
34 |
91 |
170 |
53 |
13 |
| VCDI |
0 |
133 |
64 |
117 |
205 |
1035 |
11703 |
17720 |
|
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