Validation of sea ice concentration
Bulletin date: 2020-12-17
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 |
16914 |
7280 |
1051 |
464 |
173 |
50 |
6 |
0 |
| OW |
0 |
22 |
227 |
158 |
123 |
81 |
26 |
0 |
| VODI |
0 |
1 |
136 |
157 |
154 |
103 |
89 |
0 |
| ODI |
0 |
0 |
50 |
90 |
114 |
151 |
175 |
0 |
| CDI |
0 |
0 |
13 |
82 |
172 |
237 |
450 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
114 |
560 |
5007 |
3712 |
|
...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 |
15952 |
7139 |
1131 |
430 |
204 |
190 |
18 |
0 |
| OW |
0 |
28 |
211 |
183 |
141 |
127 |
28 |
0 |
| VODI |
0 |
8 |
140 |
160 |
127 |
197 |
51 |
0 |
| ODI |
0 |
0 |
51 |
99 |
129 |
227 |
112 |
0 |
| CDI |
0 |
0 |
11 |
57 |
129 |
254 |
427 |
4 |
| VCDI |
0 |
0 |
3 |
11 |
27 |
155 |
5219 |
4779 |
|
...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 |
15922 |
7213 |
612 |
420 |
150 |
110 |
8 |
0 |
| OW |
3 |
145 |
159 |
143 |
105 |
131 |
29 |
0 |
| VODI |
0 |
38 |
170 |
187 |
108 |
124 |
54 |
0 |
| ODI |
0 |
5 |
78 |
121 |
126 |
170 |
86 |
2 |
| CDI |
0 |
2 |
39 |
100 |
109 |
251 |
260 |
25 |
| VCDI |
0 |
1 |
18 |
53 |
96 |
472 |
5595 |
4719 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15923 |
7230 |
630 |
448 |
178 |
170 |
18 |
0 |
| OW |
2 |
128 |
146 |
125 |
82 |
97 |
28 |
0 |
| VODI |
0 |
37 |
155 |
180 |
108 |
108 |
53 |
0 |
| ODI |
0 |
6 |
88 |
122 |
113 |
163 |
102 |
2 |
| CDI |
0 |
3 |
39 |
93 |
110 |
214 |
254 |
29 |
| VCDI |
0 |
0 |
18 |
56 |
103 |
506 |
5577 |
4715 |
|
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 |
15452 |
7120 |
569 |
349 |
183 |
61 |
8 |
0 |
| OW |
17 |
60 |
100 |
104 |
76 |
100 |
25 |
0 |
| VODI |
0 |
30 |
75 |
158 |
128 |
177 |
43 |
0 |
| ODI |
0 |
4 |
25 |
82 |
106 |
407 |
112 |
0 |
| CDI |
0 |
1 |
5 |
73 |
111 |
515 |
329 |
7 |
| VCDI |
0 |
0 |
4 |
14 |
73 |
574 |
6378 |
4504 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15456 |
7052 |
510 |
321 |
212 |
130 |
22 |
0 |
| OW |
13 |
102 |
105 |
95 |
45 |
117 |
55 |
0 |
| VODI |
0 |
41 |
97 |
117 |
110 |
216 |
108 |
0 |
| ODI |
0 |
13 |
33 |
99 |
73 |
236 |
107 |
0 |
| CDI |
0 |
5 |
23 |
86 |
106 |
321 |
296 |
10 |
| VCDI |
0 |
2 |
10 |
62 |
131 |
814 |
6307 |
4501 |
|
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 |
14907 |
7168 |
893 |
254 |
137 |
61 |
4 |
0 |
| OW |
8 |
59 |
186 |
144 |
87 |
64 |
5 |
0 |
| VODI |
0 |
22 |
123 |
124 |
131 |
147 |
13 |
0 |
| ODI |
0 |
8 |
56 |
89 |
159 |
273 |
34 |
0 |
| CDI |
0 |
2 |
37 |
51 |
156 |
378 |
265 |
12 |
| VCDI |
0 |
0 |
34 |
38 |
89 |
856 |
6180 |
4905 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14906 |
7074 |
868 |
303 |
198 |
108 |
8 |
0 |
| OW |
9 |
77 |
151 |
96 |
97 |
103 |
20 |
0 |
| VODI |
0 |
50 |
107 |
102 |
116 |
198 |
39 |
0 |
| ODI |
0 |
26 |
66 |
76 |
109 |
209 |
81 |
0 |
| CDI |
0 |
22 |
55 |
69 |
127 |
384 |
263 |
7 |
| VCDI |
0 |
10 |
82 |
54 |
112 |
777 |
6090 |
4910 |
|
Date: 2020-12-25:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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