Validation of sea ice concentration
Bulletin date: 2017-01-26
Model vs. observations, sea ice class contingency tables
Date: 2017-01-20:
| 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 |
14402 |
7160 |
1087 |
785 |
164 |
23 |
0 |
0 |
| OW |
0 |
101 |
260 |
238 |
178 |
48 |
4 |
0 |
| VODI |
0 |
65 |
429 |
285 |
312 |
116 |
33 |
0 |
| ODI |
0 |
39 |
249 |
175 |
338 |
285 |
169 |
0 |
| CDI |
0 |
22 |
62 |
90 |
317 |
521 |
542 |
61 |
| VCDI |
0 |
2 |
56 |
86 |
305 |
1200 |
4162 |
3788 |
|
...date precedes bulletin
|
Date: 2017-01-24:
| 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 |
14846 |
6598 |
1494 |
493 |
129 |
44 |
6 |
0 |
| OW |
0 |
15 |
197 |
236 |
139 |
50 |
10 |
0 |
| VODI |
0 |
6 |
99 |
241 |
172 |
171 |
24 |
0 |
| ODI |
0 |
0 |
97 |
226 |
235 |
233 |
81 |
0 |
| CDI |
0 |
0 |
60 |
99 |
240 |
618 |
414 |
13 |
| VCDI |
0 |
0 |
22 |
41 |
143 |
772 |
6101 |
3794 |
|
...date precedes bulletin
|
Date: 2017-01-26:
| 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 |
14860 |
6677 |
1298 |
416 |
129 |
33 |
0 |
0 |
| OW |
0 |
46 |
239 |
165 |
93 |
25 |
4 |
0 |
| VODI |
0 |
3 |
252 |
243 |
167 |
82 |
17 |
0 |
| ODI |
0 |
0 |
113 |
230 |
348 |
304 |
67 |
6 |
| CDI |
0 |
0 |
78 |
162 |
357 |
318 |
247 |
27 |
| VCDI |
0 |
0 |
60 |
135 |
350 |
1106 |
5789 |
3713 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14860 |
6647 |
1342 |
450 |
155 |
33 |
0 |
0 |
| OW |
0 |
67 |
222 |
163 |
77 |
37 |
5 |
0 |
| VODI |
0 |
12 |
223 |
218 |
224 |
119 |
18 |
0 |
| ODI |
0 |
0 |
115 |
218 |
297 |
267 |
61 |
6 |
| CDI |
0 |
0 |
78 |
166 |
348 |
301 |
259 |
29 |
| VCDI |
0 |
0 |
60 |
136 |
343 |
1111 |
5781 |
3711 |
|
Date: 2017-01-30:
| 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 |
14819 |
6210 |
1378 |
624 |
274 |
91 |
13 |
0 |
| OW |
0 |
0 |
240 |
261 |
169 |
52 |
21 |
0 |
| VODI |
0 |
0 |
153 |
324 |
286 |
121 |
31 |
0 |
| ODI |
0 |
0 |
32 |
124 |
244 |
358 |
62 |
0 |
| CDI |
0 |
0 |
11 |
91 |
205 |
464 |
305 |
8 |
| VCDI |
0 |
0 |
18 |
41 |
187 |
1036 |
6216 |
3690 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14819 |
6163 |
1026 |
452 |
301 |
103 |
20 |
0 |
| OW |
0 |
43 |
237 |
131 |
136 |
62 |
18 |
0 |
| VODI |
0 |
4 |
206 |
238 |
171 |
131 |
31 |
0 |
| ODI |
0 |
0 |
130 |
273 |
227 |
225 |
48 |
0 |
| CDI |
0 |
0 |
135 |
222 |
238 |
416 |
285 |
13 |
| VCDI |
0 |
0 |
98 |
149 |
292 |
1185 |
6246 |
3685 |
|
Date: 2017-02-01:
| 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 |
14702 |
6209 |
1159 |
400 |
235 |
125 |
43 |
0 |
| OW |
0 |
7 |
315 |
185 |
102 |
67 |
23 |
0 |
| VODI |
0 |
0 |
236 |
249 |
178 |
164 |
35 |
0 |
| ODI |
0 |
0 |
147 |
246 |
196 |
195 |
67 |
0 |
| CDI |
0 |
0 |
45 |
123 |
213 |
415 |
334 |
3 |
| VCDI |
0 |
0 |
32 |
86 |
240 |
1128 |
6496 |
3759 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14702 |
6142 |
994 |
400 |
283 |
203 |
59 |
0 |
| OW |
0 |
58 |
243 |
136 |
96 |
104 |
24 |
0 |
| VODI |
0 |
16 |
308 |
211 |
168 |
191 |
46 |
0 |
| ODI |
0 |
0 |
208 |
230 |
172 |
190 |
103 |
0 |
| CDI |
0 |
0 |
99 |
178 |
149 |
332 |
346 |
11 |
| VCDI |
0 |
0 |
82 |
134 |
296 |
1074 |
6420 |
3751 |
|
Date: 2017-02-03:
| 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 |
14982 |
6284 |
848 |
378 |
181 |
92 |
36 |
0 |
| OW |
0 |
43 |
218 |
131 |
85 |
68 |
16 |
0 |
| VODI |
0 |
12 |
181 |
159 |
134 |
166 |
37 |
0 |
| ODI |
0 |
0 |
68 |
135 |
139 |
339 |
82 |
0 |
| CDI |
0 |
0 |
55 |
95 |
189 |
529 |
423 |
16 |
| VCDI |
0 |
0 |
47 |
96 |
164 |
1016 |
6556 |
4159 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14982 |
6170 |
705 |
352 |
184 |
108 |
44 |
0 |
| OW |
0 |
131 |
223 |
128 |
64 |
84 |
17 |
0 |
| VODI |
0 |
34 |
236 |
149 |
108 |
167 |
41 |
0 |
| ODI |
0 |
4 |
111 |
129 |
196 |
360 |
81 |
0 |
| CDI |
0 |
0 |
62 |
116 |
144 |
521 |
454 |
16 |
| VCDI |
0 |
0 |
80 |
120 |
196 |
970 |
6513 |
4159 |
|
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