Validation of sea ice concentration - Asian sector
Bulletin date: 2020-12-17
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2020-12-11:
| 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 |
1011 |
2347 |
7 |
19 |
0 |
0 |
0 |
0 |
| OW |
4 |
305 |
8 |
25 |
10 |
0 |
0 |
0 |
| VODI |
0 |
224 |
17 |
112 |
30 |
0 |
0 |
0 |
| ODI |
0 |
46 |
28 |
171 |
99 |
24 |
0 |
0 |
| CDI |
0 |
0 |
3 |
157 |
253 |
111 |
7 |
4 |
| VCDI |
0 |
0 |
0 |
26 |
506 |
1819 |
3164 |
21545 |
|
...date precedes bulletin
|
Date: 2020-12-13:
| 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 |
467 |
2397 |
10 |
51 |
18 |
0 |
0 |
0 |
| OW |
5 |
404 |
3 |
26 |
15 |
5 |
0 |
0 |
| VODI |
0 |
291 |
29 |
63 |
23 |
10 |
0 |
0 |
| ODI |
0 |
102 |
29 |
147 |
35 |
18 |
0 |
0 |
| CDI |
0 |
7 |
11 |
171 |
176 |
138 |
40 |
5 |
| VCDI |
0 |
0 |
0 |
57 |
631 |
2352 |
5335 |
19011 |
|
...date precedes bulletin
|
Date: 2020-12-15:
| 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 |
59 |
2547 |
50 |
98 |
58 |
4 |
0 |
0 |
| OW |
0 |
160 |
35 |
132 |
87 |
6 |
0 |
0 |
| VODI |
0 |
36 |
12 |
203 |
89 |
9 |
0 |
0 |
| ODI |
0 |
0 |
2 |
69 |
227 |
13 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
254 |
112 |
17 |
8 |
| VCDI |
0 |
0 |
0 |
50 |
284 |
2600 |
8108 |
16752 |
|
...date precedes bulletin
|
Date: 2020-12-17:
| 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 |
53 |
2145 |
34 |
90 |
18 |
1 |
0 |
0 |
| OW |
0 |
166 |
21 |
125 |
21 |
4 |
0 |
0 |
| VODI |
0 |
67 |
25 |
189 |
92 |
9 |
0 |
0 |
| ODI |
0 |
2 |
2 |
82 |
223 |
8 |
0 |
0 |
| CDI |
0 |
0 |
0 |
8 |
248 |
76 |
22 |
0 |
| VCDI |
0 |
0 |
0 |
114 |
372 |
2548 |
6912 |
18405 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
53 |
2145 |
39 |
100 |
20 |
2 |
0 |
0 |
| OW |
0 |
170 |
14 |
118 |
22 |
5 |
0 |
0 |
| VODI |
0 |
64 |
28 |
183 |
83 |
8 |
0 |
0 |
| ODI |
0 |
1 |
1 |
83 |
202 |
7 |
0 |
0 |
| CDI |
0 |
0 |
0 |
10 |
219 |
64 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
114 |
428 |
2560 |
6910 |
18405 |
|
Date: 2020-12-19:
| 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 |
24 |
1628 |
35 |
146 |
26 |
0 |
0 |
0 |
| OW |
0 |
152 |
16 |
116 |
74 |
0 |
0 |
0 |
| VODI |
0 |
21 |
8 |
165 |
195 |
8 |
0 |
0 |
| ODI |
0 |
0 |
0 |
63 |
230 |
20 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
267 |
114 |
33 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
312 |
2699 |
8577 |
17136 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24 |
1651 |
37 |
148 |
36 |
0 |
0 |
0 |
| OW |
0 |
138 |
19 |
130 |
70 |
3 |
0 |
0 |
| VODI |
0 |
12 |
3 |
160 |
201 |
7 |
0 |
0 |
| ODI |
0 |
0 |
0 |
54 |
222 |
17 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
257 |
103 |
35 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
318 |
2711 |
8575 |
17136 |
|
Date: 2020-12-21:
| 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 |
1396 |
39 |
197 |
23 |
0 |
0 |
0 |
| OW |
0 |
32 |
9 |
101 |
67 |
0 |
0 |
0 |
| VODI |
0 |
5 |
5 |
162 |
172 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
19 |
349 |
33 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
242 |
381 |
22 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
29 |
2566 |
9490 |
16738 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1377 |
36 |
187 |
34 |
0 |
0 |
0 |
| OW |
0 |
48 |
9 |
91 |
89 |
4 |
0 |
0 |
| VODI |
0 |
8 |
8 |
161 |
162 |
11 |
0 |
0 |
| ODI |
0 |
0 |
0 |
35 |
248 |
25 |
0 |
0 |
| CDI |
0 |
0 |
0 |
6 |
220 |
197 |
36 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
129 |
2744 |
9476 |
16734 |
|
Date: 2020-12-23:
| 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 |
1113 |
36 |
217 |
67 |
0 |
0 |
0 |
| OW |
0 |
42 |
5 |
93 |
82 |
0 |
0 |
0 |
| VODI |
0 |
13 |
3 |
63 |
115 |
1 |
0 |
0 |
| ODI |
0 |
7 |
1 |
83 |
148 |
15 |
0 |
0 |
| CDI |
0 |
1 |
2 |
26 |
222 |
119 |
26 |
5 |
| VCDI |
0 |
0 |
0 |
2 |
166 |
2579 |
8446 |
18384 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1117 |
32 |
209 |
81 |
0 |
0 |
0 |
| OW |
0 |
38 |
10 |
104 |
89 |
0 |
0 |
0 |
| VODI |
0 |
14 |
1 |
64 |
171 |
9 |
0 |
0 |
| ODI |
0 |
6 |
2 |
69 |
151 |
34 |
0 |
0 |
| CDI |
0 |
1 |
2 |
31 |
161 |
165 |
11 |
5 |
| VCDI |
0 |
0 |
0 |
7 |
147 |
2506 |
8461 |
18384 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
884 |
32 |
201 |
171 |
31 |
0 |
0 |
| OW |
0 |
35 |
7 |
60 |
89 |
23 |
0 |
0 |
| VODI |
0 |
21 |
3 |
46 |
174 |
50 |
0 |
0 |
| ODI |
0 |
12 |
3 |
10 |
120 |
80 |
0 |
0 |
| CDI |
0 |
5 |
1 |
17 |
156 |
173 |
28 |
31 |
| VCDI |
0 |
0 |
0 |
0 |
121 |
1443 |
6642 |
21413 |
|
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