Validation of sea ice concentration
Bulletin date: 2020-08-13
Model vs. observations, sea ice class contingency tables
Date: 2020-08-07:
| 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 |
23163 |
5926 |
1209 |
686 |
151 |
70 |
63 |
0 |
| OW |
0 |
6 |
104 |
152 |
67 |
82 |
117 |
0 |
| VODI |
0 |
0 |
26 |
175 |
103 |
163 |
442 |
0 |
| ODI |
0 |
0 |
0 |
37 |
94 |
221 |
1877 |
386 |
| CDI |
0 |
0 |
0 |
19 |
22 |
123 |
1485 |
1178 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
10 |
0 |
|
...date precedes bulletin
|
Date: 2020-08-11:
| 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 |
23787 |
5806 |
1082 |
538 |
201 |
81 |
84 |
0 |
| OW |
0 |
2 |
54 |
138 |
70 |
77 |
113 |
0 |
| VODI |
0 |
0 |
11 |
130 |
106 |
229 |
376 |
0 |
| ODI |
0 |
0 |
3 |
49 |
63 |
193 |
1638 |
279 |
| CDI |
0 |
0 |
1 |
7 |
5 |
16 |
1389 |
1587 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
15 |
27 |
|
...date precedes bulletin
|
Date: 2020-08-13:
| 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 |
23369 |
6029 |
1317 |
566 |
295 |
113 |
56 |
0 |
| OW |
0 |
2 |
59 |
173 |
138 |
110 |
73 |
0 |
| VODI |
0 |
0 |
19 |
141 |
168 |
285 |
358 |
0 |
| ODI |
0 |
0 |
0 |
52 |
58 |
333 |
1849 |
212 |
| CDI |
0 |
0 |
0 |
5 |
8 |
18 |
1248 |
1087 |
| VCDI |
0 |
0 |
0 |
3 |
1 |
2 |
7 |
5 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23369 |
6029 |
1308 |
582 |
307 |
113 |
64 |
0 |
| OW |
0 |
2 |
68 |
158 |
125 |
108 |
78 |
0 |
| VODI |
0 |
0 |
19 |
137 |
171 |
278 |
356 |
0 |
| ODI |
0 |
0 |
0 |
50 |
54 |
337 |
1948 |
375 |
| CDI |
0 |
0 |
0 |
9 |
10 |
23 |
1117 |
883 |
| VCDI |
0 |
0 |
0 |
4 |
1 |
2 |
28 |
46 |
|
Date: 2020-08-17:
| 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 |
23700 |
6496 |
1016 |
673 |
158 |
42 |
9 |
0 |
| OW |
0 |
15 |
42 |
176 |
159 |
52 |
26 |
0 |
| VODI |
0 |
0 |
17 |
180 |
347 |
256 |
135 |
0 |
| ODI |
0 |
0 |
3 |
42 |
157 |
475 |
1583 |
19 |
| CDI |
0 |
0 |
0 |
2 |
11 |
126 |
1178 |
954 |
| VCDI |
0 |
0 |
0 |
7 |
0 |
4 |
5 |
94 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23700 |
6424 |
936 |
642 |
193 |
58 |
19 |
0 |
| OW |
0 |
52 |
80 |
154 |
197 |
86 |
43 |
0 |
| VODI |
0 |
35 |
50 |
193 |
246 |
305 |
202 |
0 |
| ODI |
0 |
0 |
12 |
82 |
183 |
381 |
1852 |
496 |
| CDI |
0 |
0 |
0 |
2 |
13 |
121 |
820 |
569 |
| VCDI |
0 |
0 |
0 |
7 |
0 |
4 |
0 |
2 |
|
Date: 2020-08-19:
| 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 |
24327 |
6151 |
877 |
568 |
253 |
54 |
12 |
0 |
| OW |
0 |
7 |
66 |
162 |
156 |
89 |
15 |
0 |
| VODI |
0 |
0 |
20 |
171 |
316 |
349 |
145 |
0 |
| ODI |
0 |
0 |
3 |
33 |
137 |
394 |
1655 |
59 |
| CDI |
0 |
0 |
0 |
1 |
9 |
64 |
1207 |
829 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
2 |
1 |
19 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24327 |
5993 |
781 |
556 |
290 |
64 |
14 |
0 |
| OW |
0 |
98 |
73 |
116 |
157 |
119 |
39 |
0 |
| VODI |
0 |
66 |
82 |
184 |
246 |
354 |
274 |
0 |
| ODI |
0 |
1 |
30 |
76 |
165 |
342 |
1857 |
392 |
| CDI |
0 |
0 |
0 |
3 |
13 |
72 |
850 |
515 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
1 |
1 |
0 |
|
Date: 2020-08-21:
| 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 |
23972 |
6705 |
841 |
587 |
144 |
37 |
28 |
0 |
| OW |
0 |
6 |
106 |
165 |
166 |
112 |
25 |
0 |
| VODI |
0 |
0 |
28 |
183 |
317 |
286 |
206 |
0 |
| ODI |
0 |
0 |
3 |
35 |
179 |
345 |
1687 |
84 |
| CDI |
0 |
0 |
0 |
0 |
3 |
55 |
1058 |
784 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
7 |
2 |
3 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23972 |
6492 |
730 |
593 |
166 |
56 |
18 |
0 |
| OW |
0 |
122 |
94 |
133 |
145 |
91 |
46 |
0 |
| VODI |
0 |
96 |
119 |
185 |
304 |
327 |
324 |
0 |
| ODI |
0 |
1 |
35 |
58 |
165 |
278 |
1782 |
374 |
| CDI |
0 |
0 |
0 |
1 |
29 |
82 |
834 |
497 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
8 |
2 |
0 |
|
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