Validation of sea ice concentration - Asian sector
Bulletin date: 2021-04-15
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-04-09:
| 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 |
29 |
2 |
23 |
0 |
0 |
0 |
0 |
| OW |
0 |
18 |
0 |
14 |
6 |
0 |
0 |
0 |
| VODI |
0 |
36 |
4 |
24 |
27 |
0 |
0 |
0 |
| ODI |
0 |
66 |
10 |
63 |
45 |
24 |
0 |
0 |
| CDI |
0 |
37 |
5 |
62 |
112 |
109 |
17 |
0 |
| VCDI |
0 |
72 |
15 |
230 |
312 |
821 |
6668 |
23231 |
|
...date precedes bulletin
|
Date: 2021-04-11:
| 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 |
47 |
4 |
33 |
0 |
0 |
0 |
0 |
| OW |
0 |
54 |
1 |
26 |
9 |
0 |
0 |
0 |
| VODI |
0 |
167 |
4 |
29 |
82 |
8 |
0 |
0 |
| ODI |
0 |
84 |
7 |
46 |
85 |
50 |
16 |
0 |
| CDI |
0 |
77 |
1 |
45 |
167 |
180 |
108 |
40 |
| VCDI |
0 |
247 |
22 |
129 |
385 |
1192 |
9633 |
19104 |
|
...date precedes bulletin
|
Date: 2021-04-13:
| 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 |
54 |
4 |
21 |
2 |
0 |
0 |
0 |
| OW |
0 |
79 |
3 |
30 |
10 |
0 |
0 |
0 |
| VODI |
0 |
161 |
1 |
46 |
93 |
4 |
1 |
0 |
| ODI |
0 |
68 |
2 |
43 |
229 |
46 |
40 |
23 |
| CDI |
0 |
57 |
6 |
20 |
273 |
276 |
190 |
115 |
| VCDI |
0 |
142 |
17 |
103 |
331 |
1925 |
9838 |
17829 |
|
...date precedes bulletin
|
Date: 2021-04-15:
| 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 |
27 |
3 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
9 |
1 |
31 |
5 |
0 |
0 |
0 |
| VODI |
0 |
41 |
5 |
39 |
41 |
0 |
7 |
0 |
| ODI |
0 |
41 |
6 |
55 |
135 |
66 |
69 |
0 |
| CDI |
0 |
38 |
2 |
42 |
126 |
359 |
350 |
90 |
| VCDI |
0 |
65 |
11 |
107 |
230 |
1459 |
10114 |
18503 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
27 |
3 |
8 |
1 |
0 |
0 |
0 |
| OW |
0 |
9 |
2 |
27 |
9 |
0 |
0 |
0 |
| VODI |
0 |
38 |
4 |
43 |
41 |
0 |
2 |
0 |
| ODI |
0 |
51 |
6 |
53 |
137 |
51 |
67 |
0 |
| CDI |
0 |
44 |
2 |
48 |
118 |
357 |
329 |
96 |
| VCDI |
0 |
52 |
11 |
100 |
231 |
1476 |
10142 |
18497 |
|
Date: 2021-04-17:
| 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 |
0 |
0 |
21 |
2 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
25 |
6 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
30 |
34 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
34 |
66 |
34 |
2 |
0 |
| CDI |
0 |
0 |
0 |
37 |
122 |
234 |
131 |
134 |
| VCDI |
0 |
0 |
0 |
120 |
252 |
920 |
8539 |
21339 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
18 |
1 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
24 |
5 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
31 |
30 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
31 |
64 |
38 |
3 |
0 |
| CDI |
0 |
0 |
0 |
45 |
144 |
210 |
165 |
158 |
| VCDI |
0 |
0 |
0 |
118 |
238 |
940 |
8504 |
21315 |
|
Date: 2021-04-19:
| 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 |
27 |
4 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
11 |
4 |
57 |
3 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
70 |
36 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
25 |
141 |
6 |
4 |
3 |
| CDI |
0 |
0 |
0 |
21 |
142 |
248 |
70 |
105 |
| VCDI |
0 |
0 |
0 |
75 |
199 |
936 |
9328 |
20557 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
17 |
3 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
3 |
14 |
0 |
0 |
0 |
0 |
| VODI |
0 |
4 |
3 |
41 |
8 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
34 |
41 |
1 |
19 |
44 |
| CDI |
0 |
0 |
0 |
54 |
169 |
192 |
157 |
197 |
| VCDI |
0 |
0 |
0 |
109 |
303 |
997 |
9226 |
20424 |
|
Date: 2021-04-21:
| 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 |
104 |
2 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
53 |
8 |
25 |
0 |
0 |
0 |
0 |
| VODI |
0 |
42 |
4 |
47 |
37 |
0 |
0 |
0 |
| ODI |
0 |
22 |
3 |
17 |
153 |
16 |
19 |
0 |
| CDI |
0 |
12 |
3 |
37 |
147 |
318 |
119 |
15 |
| VCDI |
0 |
29 |
8 |
115 |
205 |
1678 |
10101 |
18742 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
48 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
1 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
41 |
8 |
24 |
6 |
0 |
0 |
0 |
| ODI |
0 |
30 |
2 |
48 |
51 |
17 |
4 |
1 |
| CDI |
0 |
54 |
5 |
41 |
227 |
233 |
198 |
71 |
| VCDI |
0 |
42 |
12 |
125 |
258 |
1762 |
10037 |
18685 |
|
Date: 2021-04-23:
| 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 |
118 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
66 |
10 |
35 |
1 |
0 |
0 |
0 |
| VODI |
0 |
48 |
6 |
87 |
75 |
6 |
0 |
0 |
| ODI |
0 |
27 |
4 |
25 |
120 |
14 |
17 |
0 |
| CDI |
0 |
15 |
3 |
37 |
221 |
250 |
199 |
49 |
| VCDI |
0 |
54 |
8 |
92 |
340 |
2424 |
9998 |
17733 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
56 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
49 |
0 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
48 |
12 |
36 |
7 |
0 |
0 |
0 |
| ODI |
0 |
35 |
2 |
72 |
61 |
30 |
27 |
3 |
| CDI |
0 |
53 |
4 |
53 |
335 |
244 |
230 |
29 |
| VCDI |
0 |
87 |
13 |
110 |
354 |
2420 |
9957 |
17750 |
|
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