Validation of sea ice concentration - Asian sector
Bulletin date: 2020-12-31
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2020-12-25:
| 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 |
889 |
35 |
180 |
134 |
9 |
0 |
0 |
| OW |
0 |
28 |
6 |
79 |
71 |
22 |
0 |
0 |
| VODI |
0 |
21 |
1 |
35 |
155 |
35 |
0 |
0 |
| ODI |
0 |
11 |
3 |
19 |
86 |
44 |
0 |
0 |
| CDI |
0 |
8 |
1 |
17 |
225 |
109 |
16 |
1 |
| VCDI |
0 |
0 |
0 |
4 |
160 |
1581 |
6654 |
21443 |
|
...date precedes bulletin
|
Date: 2020-12-27:
| 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 |
739 |
44 |
124 |
156 |
38 |
0 |
0 |
| OW |
0 |
36 |
5 |
83 |
70 |
25 |
0 |
0 |
| VODI |
0 |
38 |
1 |
69 |
79 |
57 |
0 |
0 |
| ODI |
0 |
22 |
1 |
14 |
80 |
74 |
0 |
0 |
| CDI |
0 |
18 |
0 |
12 |
128 |
100 |
25 |
3 |
| VCDI |
0 |
6 |
2 |
11 |
177 |
1053 |
6547 |
22245 |
|
...date precedes bulletin
|
Date: 2020-12-29:
| 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 |
621 |
25 |
161 |
96 |
1 |
0 |
0 |
| OW |
0 |
34 |
17 |
78 |
74 |
6 |
0 |
0 |
| VODI |
0 |
23 |
1 |
77 |
137 |
13 |
0 |
0 |
| ODI |
0 |
10 |
1 |
48 |
133 |
34 |
0 |
0 |
| CDI |
0 |
7 |
1 |
19 |
170 |
146 |
26 |
2 |
| VCDI |
0 |
0 |
0 |
2 |
116 |
999 |
5053 |
23951 |
|
...date precedes bulletin
|
Date: 2020-12-31:
| 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 |
4 |
476 |
15 |
133 |
122 |
56 |
0 |
0 |
| OW |
0 |
56 |
8 |
50 |
65 |
45 |
0 |
0 |
| VODI |
0 |
42 |
5 |
47 |
70 |
69 |
0 |
0 |
| ODI |
0 |
22 |
3 |
44 |
69 |
76 |
5 |
0 |
| CDI |
0 |
12 |
1 |
42 |
88 |
177 |
29 |
0 |
| VCDI |
0 |
0 |
0 |
74 |
281 |
1305 |
5552 |
23039 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4 |
488 |
16 |
133 |
125 |
63 |
0 |
0 |
| OW |
0 |
49 |
6 |
50 |
67 |
45 |
0 |
0 |
| VODI |
0 |
40 |
6 |
51 |
65 |
63 |
2 |
0 |
| ODI |
0 |
21 |
3 |
44 |
65 |
63 |
6 |
0 |
| CDI |
0 |
10 |
1 |
38 |
92 |
173 |
42 |
0 |
| VCDI |
0 |
0 |
0 |
74 |
281 |
1321 |
5536 |
23039 |
|
Date: 2021-01-02:
| 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 |
4 |
437 |
22 |
109 |
102 |
79 |
11 |
0 |
| OW |
0 |
94 |
6 |
44 |
35 |
49 |
25 |
0 |
| VODI |
0 |
97 |
4 |
45 |
55 |
44 |
32 |
0 |
| ODI |
0 |
64 |
5 |
25 |
92 |
67 |
18 |
0 |
| CDI |
0 |
69 |
6 |
39 |
111 |
210 |
39 |
14 |
| VCDI |
0 |
38 |
8 |
115 |
413 |
1586 |
5839 |
22030 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4 |
426 |
22 |
108 |
101 |
70 |
10 |
0 |
| OW |
0 |
120 |
5 |
45 |
35 |
56 |
22 |
0 |
| VODI |
0 |
90 |
4 |
43 |
55 |
43 |
26 |
0 |
| ODI |
0 |
58 |
6 |
31 |
88 |
62 |
24 |
0 |
| CDI |
0 |
64 |
6 |
37 |
112 |
194 |
49 |
10 |
| VCDI |
0 |
41 |
8 |
113 |
417 |
1610 |
5833 |
22034 |
|
Date: 2021-01-04:
| 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 |
13 |
571 |
17 |
110 |
52 |
15 |
0 |
0 |
| OW |
0 |
137 |
3 |
75 |
29 |
34 |
0 |
0 |
| VODI |
0 |
59 |
15 |
92 |
72 |
68 |
3 |
0 |
| ODI |
0 |
53 |
6 |
76 |
119 |
71 |
17 |
0 |
| CDI |
0 |
31 |
3 |
71 |
182 |
183 |
91 |
35 |
| VCDI |
0 |
38 |
8 |
93 |
452 |
1461 |
6130 |
21597 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13 |
441 |
18 |
135 |
82 |
65 |
1 |
0 |
| OW |
0 |
112 |
4 |
65 |
48 |
61 |
15 |
0 |
| VODI |
0 |
114 |
2 |
51 |
53 |
51 |
33 |
0 |
| ODI |
0 |
76 |
6 |
23 |
100 |
68 |
38 |
0 |
| CDI |
0 |
77 |
8 |
82 |
87 |
159 |
113 |
35 |
| VCDI |
0 |
69 |
14 |
161 |
536 |
1428 |
6041 |
21597 |
|
Date: 2021-01-06:
| 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 |
35 |
729 |
9 |
94 |
19 |
0 |
0 |
0 |
| OW |
0 |
287 |
15 |
48 |
18 |
0 |
0 |
0 |
| VODI |
0 |
270 |
13 |
137 |
42 |
5 |
0 |
0 |
| ODI |
0 |
197 |
24 |
215 |
139 |
41 |
7 |
0 |
| CDI |
0 |
174 |
17 |
188 |
274 |
135 |
147 |
16 |
| VCDI |
0 |
72 |
10 |
224 |
1044 |
2819 |
9541 |
15077 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
35 |
687 |
19 |
159 |
61 |
4 |
0 |
0 |
| OW |
0 |
165 |
11 |
109 |
39 |
11 |
0 |
0 |
| VODI |
0 |
298 |
10 |
172 |
130 |
24 |
0 |
0 |
| ODI |
0 |
192 |
10 |
79 |
165 |
52 |
2 |
0 |
| CDI |
0 |
136 |
5 |
45 |
189 |
101 |
14 |
0 |
| VCDI |
0 |
251 |
33 |
342 |
952 |
2808 |
9679 |
15093 |
|
Date: 2021-01-08:
| 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 |
13 |
571 |
13 |
84 |
10 |
0 |
0 |
0 |
| OW |
0 |
356 |
11 |
66 |
12 |
0 |
0 |
0 |
| VODI |
0 |
434 |
22 |
141 |
100 |
0 |
0 |
0 |
| ODI |
0 |
265 |
16 |
162 |
127 |
0 |
0 |
0 |
| CDI |
0 |
128 |
14 |
110 |
333 |
60 |
18 |
4 |
| VCDI |
0 |
57 |
9 |
112 |
464 |
2573 |
7279 |
18518 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13 |
749 |
25 |
153 |
25 |
0 |
0 |
0 |
| OW |
0 |
186 |
3 |
64 |
39 |
0 |
0 |
0 |
| VODI |
0 |
312 |
14 |
92 |
83 |
0 |
0 |
0 |
| ODI |
0 |
267 |
15 |
142 |
93 |
0 |
0 |
0 |
| CDI |
0 |
148 |
12 |
76 |
253 |
13 |
18 |
0 |
| VCDI |
0 |
149 |
16 |
148 |
553 |
2620 |
7279 |
18522 |
|
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