Validation of sea ice concentration
Bulletin date: 2020-12-31
Model vs. observations, sea ice class contingency tables
Date: 2020-12-25:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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 |
14559 |
6641 |
1521 |
349 |
82 |
91 |
50 |
0 |
| OW |
0 |
37 |
231 |
195 |
112 |
77 |
37 |
0 |
| VODI |
0 |
16 |
135 |
212 |
172 |
168 |
37 |
0 |
| ODI |
0 |
14 |
52 |
107 |
154 |
218 |
81 |
0 |
| CDI |
0 |
5 |
40 |
73 |
145 |
312 |
476 |
14 |
| VCDI |
0 |
4 |
113 |
131 |
153 |
622 |
6111 |
4612 |
|
...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 |
15030 |
6717 |
836 |
237 |
67 |
108 |
21 |
0 |
| OW |
0 |
217 |
295 |
161 |
75 |
62 |
17 |
0 |
| VODI |
0 |
63 |
221 |
234 |
112 |
108 |
35 |
0 |
| ODI |
0 |
17 |
86 |
162 |
138 |
182 |
61 |
0 |
| CDI |
0 |
23 |
38 |
158 |
150 |
353 |
351 |
22 |
| VCDI |
0 |
113 |
72 |
165 |
262 |
813 |
6388 |
3989 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15030 |
6766 |
883 |
262 |
86 |
120 |
21 |
0 |
| OW |
0 |
173 |
284 |
167 |
78 |
59 |
23 |
0 |
| VODI |
0 |
66 |
194 |
233 |
112 |
107 |
29 |
0 |
| ODI |
0 |
22 |
87 |
147 |
120 |
174 |
61 |
0 |
| CDI |
0 |
22 |
29 |
152 |
145 |
358 |
318 |
16 |
| VCDI |
0 |
101 |
71 |
156 |
263 |
808 |
6421 |
3995 |
|
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 |
14921 |
6811 |
1179 |
357 |
107 |
48 |
35 |
0 |
| OW |
0 |
115 |
269 |
213 |
139 |
77 |
41 |
0 |
| VODI |
0 |
37 |
160 |
212 |
192 |
168 |
76 |
0 |
| ODI |
0 |
16 |
98 |
113 |
135 |
288 |
129 |
0 |
| CDI |
0 |
9 |
80 |
106 |
131 |
357 |
704 |
6 |
| VCDI |
0 |
18 |
126 |
161 |
204 |
435 |
5957 |
3929 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14921 |
6334 |
877 |
283 |
107 |
73 |
94 |
0 |
| OW |
0 |
341 |
245 |
139 |
120 |
76 |
67 |
0 |
| VODI |
0 |
190 |
290 |
171 |
144 |
170 |
87 |
0 |
| ODI |
0 |
55 |
124 |
143 |
115 |
245 |
129 |
0 |
| CDI |
0 |
33 |
116 |
143 |
125 |
274 |
572 |
6 |
| VCDI |
0 |
53 |
260 |
283 |
297 |
535 |
5993 |
3929 |
|
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 |
14814 |
6711 |
1178 |
310 |
103 |
61 |
21 |
0 |
| OW |
0 |
157 |
326 |
248 |
105 |
99 |
24 |
0 |
| VODI |
0 |
48 |
209 |
303 |
216 |
189 |
67 |
0 |
| ODI |
0 |
2 |
113 |
237 |
178 |
330 |
106 |
0 |
| CDI |
0 |
0 |
93 |
219 |
162 |
432 |
394 |
20 |
| VCDI |
0 |
0 |
96 |
189 |
279 |
814 |
5169 |
4137 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14814 |
6224 |
1031 |
334 |
120 |
109 |
69 |
0 |
| OW |
0 |
200 |
219 |
184 |
83 |
104 |
50 |
0 |
| VODI |
0 |
315 |
235 |
255 |
203 |
261 |
76 |
0 |
| ODI |
0 |
125 |
164 |
187 |
136 |
298 |
125 |
0 |
| CDI |
0 |
51 |
96 |
141 |
147 |
413 |
344 |
21 |
| VCDI |
0 |
3 |
270 |
405 |
354 |
740 |
5117 |
4136 |
|
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 |
14606 |
6710 |
855 |
553 |
111 |
18 |
3 |
0 |
| OW |
0 |
156 |
324 |
331 |
101 |
48 |
7 |
0 |
| VODI |
0 |
109 |
266 |
488 |
221 |
116 |
19 |
0 |
| ODI |
0 |
35 |
183 |
238 |
212 |
139 |
81 |
0 |
| CDI |
0 |
11 |
84 |
245 |
218 |
269 |
261 |
0 |
| VCDI |
0 |
46 |
74 |
215 |
313 |
640 |
6962 |
2891 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14606 |
6577 |
871 |
425 |
90 |
28 |
3 |
0 |
| OW |
0 |
178 |
280 |
267 |
78 |
31 |
3 |
0 |
| VODI |
0 |
112 |
240 |
526 |
184 |
74 |
16 |
0 |
| ODI |
0 |
67 |
177 |
327 |
220 |
180 |
79 |
0 |
| CDI |
0 |
65 |
77 |
212 |
223 |
256 |
323 |
2 |
| VCDI |
0 |
68 |
141 |
313 |
381 |
661 |
6909 |
2889 |
|
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