Validation of sea ice concentration
Bulletin date: 2021-12-30
Model vs. observations, sea ice class contingency tables
Date: 2021-12-24:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2021-12-28:
| 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 |
13749 |
5938 |
823 |
420 |
165 |
195 |
107 |
1 |
| OW |
0 |
31 |
140 |
139 |
82 |
77 |
30 |
0 |
| VODI |
0 |
11 |
94 |
130 |
120 |
133 |
50 |
0 |
| ODI |
0 |
0 |
43 |
69 |
96 |
197 |
93 |
39 |
| CDI |
0 |
0 |
35 |
24 |
86 |
223 |
425 |
189 |
| VCDI |
0 |
0 |
98 |
91 |
89 |
359 |
6594 |
6974 |
|
...date precedes bulletin
|
Date: 2021-12-30:
| 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 |
13343 |
5869 |
1130 |
328 |
156 |
188 |
135 |
4 |
| OW |
0 |
8 |
223 |
106 |
69 |
83 |
58 |
0 |
| VODI |
0 |
0 |
127 |
116 |
101 |
123 |
117 |
0 |
| ODI |
0 |
0 |
47 |
61 |
81 |
126 |
142 |
3 |
| CDI |
0 |
0 |
28 |
59 |
66 |
193 |
429 |
105 |
| VCDI |
0 |
0 |
70 |
137 |
109 |
339 |
7432 |
6448 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13343 |
5870 |
1147 |
346 |
167 |
194 |
149 |
4 |
| OW |
0 |
7 |
209 |
94 |
54 |
80 |
54 |
0 |
| VODI |
0 |
0 |
125 |
110 |
104 |
116 |
111 |
0 |
| ODI |
0 |
0 |
46 |
63 |
78 |
108 |
150 |
0 |
| CDI |
0 |
0 |
28 |
54 |
67 |
185 |
360 |
94 |
| VCDI |
0 |
0 |
70 |
140 |
112 |
369 |
7489 |
6462 |
|
Date: 2022-01-03:
| 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 |
13411 |
5781 |
1113 |
368 |
193 |
156 |
88 |
0 |
| OW |
0 |
13 |
154 |
134 |
109 |
77 |
47 |
0 |
| VODI |
0 |
5 |
104 |
127 |
142 |
125 |
48 |
0 |
| ODI |
0 |
4 |
44 |
72 |
113 |
191 |
86 |
0 |
| CDI |
0 |
0 |
27 |
73 |
105 |
312 |
265 |
13 |
| VCDI |
0 |
0 |
14 |
115 |
185 |
1091 |
7765 |
5489 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13411 |
5754 |
936 |
328 |
182 |
165 |
131 |
0 |
| OW |
0 |
27 |
205 |
120 |
81 |
67 |
27 |
0 |
| VODI |
0 |
10 |
138 |
128 |
124 |
116 |
67 |
0 |
| ODI |
0 |
7 |
68 |
78 |
118 |
148 |
71 |
0 |
| CDI |
0 |
5 |
54 |
76 |
120 |
266 |
274 |
28 |
| VCDI |
0 |
0 |
55 |
159 |
222 |
1190 |
7729 |
5474 |
|
Date: 2022-01-05:
| 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 |
13217 |
5712 |
873 |
386 |
234 |
148 |
109 |
8 |
| OW |
0 |
21 |
158 |
131 |
91 |
88 |
68 |
0 |
| VODI |
0 |
1 |
102 |
158 |
85 |
146 |
66 |
0 |
| ODI |
0 |
0 |
33 |
91 |
75 |
155 |
93 |
1 |
| CDI |
0 |
0 |
12 |
78 |
118 |
323 |
294 |
29 |
| VCDI |
0 |
0 |
10 |
90 |
161 |
742 |
7800 |
6252 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13217 |
5680 |
746 |
365 |
219 |
152 |
180 |
8 |
| OW |
0 |
43 |
183 |
131 |
88 |
70 |
36 |
0 |
| VODI |
0 |
11 |
121 |
143 |
90 |
158 |
76 |
0 |
| ODI |
0 |
0 |
59 |
76 |
83 |
178 |
114 |
2 |
| CDI |
0 |
0 |
46 |
67 |
91 |
218 |
288 |
38 |
| VCDI |
0 |
0 |
33 |
152 |
193 |
826 |
7736 |
6242 |
|
Date: 2022-01-07:
| 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 |
13188 |
5692 |
769 |
407 |
252 |
108 |
81 |
4 |
| OW |
0 |
45 |
144 |
122 |
89 |
107 |
50 |
0 |
| VODI |
0 |
12 |
110 |
137 |
98 |
143 |
76 |
0 |
| ODI |
0 |
0 |
49 |
74 |
98 |
159 |
135 |
0 |
| CDI |
0 |
0 |
16 |
70 |
97 |
231 |
449 |
10 |
| VCDI |
0 |
0 |
7 |
34 |
130 |
454 |
7160 |
7352 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13188 |
5623 |
720 |
421 |
239 |
144 |
165 |
4 |
| OW |
0 |
93 |
123 |
122 |
105 |
92 |
59 |
0 |
| VODI |
0 |
31 |
119 |
129 |
116 |
181 |
92 |
0 |
| ODI |
0 |
2 |
62 |
59 |
94 |
179 |
194 |
1 |
| CDI |
0 |
0 |
43 |
46 |
69 |
210 |
448 |
56 |
| VCDI |
0 |
0 |
28 |
67 |
141 |
396 |
6993 |
7305 |
|
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