Validation of sea ice concentration - Asian sector
Bulletin date: 2021-04-08
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-04-02:
| 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 |
11 |
1 |
32 |
5 |
0 |
0 |
0 |
| OW |
0 |
8 |
0 |
5 |
14 |
0 |
0 |
0 |
| VODI |
0 |
9 |
1 |
6 |
14 |
0 |
0 |
0 |
| ODI |
0 |
4 |
2 |
7 |
18 |
10 |
4 |
0 |
| CDI |
0 |
7 |
0 |
16 |
80 |
110 |
39 |
4 |
| VCDI |
0 |
4 |
3 |
106 |
316 |
645 |
6571 |
24030 |
|
...date precedes bulletin
|
Date: 2021-04-04:
| 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 |
11 |
2 |
29 |
1 |
0 |
0 |
0 |
| OW |
0 |
8 |
1 |
11 |
9 |
0 |
0 |
0 |
| VODI |
0 |
12 |
0 |
7 |
16 |
0 |
0 |
0 |
| ODI |
0 |
5 |
2 |
6 |
20 |
2 |
0 |
0 |
| CDI |
0 |
9 |
0 |
10 |
70 |
104 |
34 |
6 |
| VCDI |
0 |
16 |
4 |
114 |
320 |
520 |
7092 |
23641 |
|
...date precedes bulletin
|
Date: 2021-04-06:
| 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 |
11 |
2 |
30 |
4 |
0 |
0 |
0 |
| OW |
0 |
10 |
0 |
16 |
11 |
0 |
0 |
0 |
| VODI |
0 |
12 |
1 |
5 |
25 |
1 |
0 |
0 |
| ODI |
0 |
4 |
2 |
6 |
41 |
22 |
0 |
0 |
| CDI |
0 |
11 |
1 |
12 |
56 |
122 |
35 |
11 |
| VCDI |
0 |
10 |
0 |
75 |
285 |
321 |
4531 |
26409 |
|
...date precedes bulletin
|
Date: 2021-04-08:
| 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 |
28 |
3 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
19 |
1 |
16 |
4 |
0 |
0 |
0 |
| VODI |
0 |
15 |
1 |
20 |
11 |
1 |
0 |
0 |
| ODI |
0 |
26 |
6 |
81 |
20 |
18 |
0 |
0 |
| CDI |
0 |
15 |
1 |
71 |
57 |
118 |
22 |
4 |
| VCDI |
0 |
42 |
8 |
251 |
220 |
627 |
5103 |
25259 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
32 |
3 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
15 |
1 |
15 |
4 |
0 |
0 |
0 |
| VODI |
0 |
14 |
0 |
25 |
11 |
1 |
0 |
0 |
| ODI |
0 |
28 |
7 |
69 |
19 |
16 |
0 |
0 |
| CDI |
0 |
10 |
1 |
66 |
60 |
112 |
21 |
4 |
| VCDI |
0 |
46 |
8 |
265 |
218 |
635 |
5104 |
25259 |
|
Date: 2021-04-10:
| 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 |
0 |
30 |
2 |
24 |
2 |
0 |
0 |
0 |
| OW |
0 |
27 |
2 |
17 |
11 |
0 |
0 |
0 |
| VODI |
0 |
156 |
2 |
7 |
42 |
3 |
0 |
0 |
| ODI |
0 |
86 |
9 |
19 |
67 |
34 |
2 |
0 |
| CDI |
0 |
81 |
3 |
28 |
141 |
114 |
54 |
13 |
| VCDI |
0 |
222 |
24 |
120 |
354 |
1060 |
7980 |
21346 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
32 |
2 |
27 |
2 |
0 |
0 |
0 |
| OW |
0 |
32 |
2 |
13 |
17 |
0 |
0 |
0 |
| VODI |
0 |
145 |
2 |
7 |
43 |
4 |
0 |
0 |
| ODI |
0 |
86 |
9 |
22 |
67 |
35 |
1 |
0 |
| CDI |
0 |
74 |
3 |
29 |
138 |
105 |
55 |
13 |
| VCDI |
0 |
233 |
24 |
117 |
350 |
1067 |
7980 |
21346 |
|
Date: 2021-04-12:
| 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 |
72 |
4 |
27 |
0 |
0 |
0 |
0 |
| OW |
0 |
83 |
2 |
32 |
11 |
0 |
0 |
0 |
| VODI |
0 |
211 |
4 |
82 |
47 |
3 |
0 |
0 |
| ODI |
0 |
82 |
7 |
66 |
190 |
26 |
27 |
2 |
| CDI |
0 |
53 |
2 |
29 |
261 |
197 |
118 |
95 |
| VCDI |
0 |
171 |
19 |
102 |
318 |
1113 |
11662 |
16964 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
87 |
5 |
39 |
8 |
0 |
0 |
0 |
| OW |
0 |
97 |
1 |
21 |
34 |
1 |
0 |
0 |
| VODI |
0 |
86 |
10 |
70 |
93 |
13 |
0 |
0 |
| ODI |
0 |
76 |
1 |
47 |
151 |
46 |
39 |
7 |
| CDI |
0 |
82 |
0 |
37 |
185 |
228 |
160 |
81 |
| VCDI |
0 |
244 |
21 |
124 |
356 |
1051 |
11608 |
16973 |
|
Date: 2021-04-14:
| 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 |
48 |
4 |
9 |
1 |
0 |
0 |
0 |
| OW |
0 |
30 |
3 |
23 |
15 |
0 |
0 |
0 |
| VODI |
0 |
104 |
4 |
39 |
57 |
8 |
9 |
0 |
| ODI |
0 |
77 |
1 |
25 |
205 |
80 |
55 |
4 |
| CDI |
0 |
61 |
4 |
30 |
178 |
332 |
304 |
150 |
| VCDI |
0 |
92 |
12 |
117 |
313 |
1780 |
10288 |
17620 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
32 |
2 |
7 |
26 |
0 |
0 |
0 |
| OW |
0 |
33 |
3 |
11 |
27 |
7 |
0 |
0 |
| VODI |
0 |
66 |
5 |
50 |
91 |
23 |
9 |
0 |
| ODI |
0 |
70 |
1 |
16 |
149 |
114 |
36 |
2 |
| CDI |
0 |
53 |
3 |
29 |
193 |
370 |
193 |
76 |
| VCDI |
0 |
158 |
14 |
130 |
283 |
1686 |
10418 |
17696 |
|
Date: 2021-04-16:
| 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 |
0 |
0 |
28 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
31 |
6 |
0 |
0 |
0 |
| VODI |
0 |
6 |
4 |
38 |
34 |
0 |
0 |
0 |
| ODI |
0 |
13 |
2 |
52 |
91 |
21 |
43 |
0 |
| CDI |
0 |
3 |
1 |
64 |
147 |
259 |
368 |
71 |
| VCDI |
0 |
30 |
11 |
144 |
232 |
1230 |
9081 |
20072 |
|
|
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 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
20 |
11 |
0 |
0 |
0 |
| VODI |
0 |
1 |
1 |
37 |
36 |
13 |
1 |
0 |
| ODI |
0 |
4 |
2 |
21 |
52 |
57 |
52 |
10 |
| CDI |
0 |
12 |
2 |
19 |
100 |
222 |
371 |
86 |
| VCDI |
0 |
35 |
13 |
239 |
311 |
1218 |
9068 |
20047 |
|
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