Validation of sea ice concentration
Bulletin date: 2017-07-06
Model vs. observations, sea ice class contingency tables
Date: 2017-06-30:
| 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 |
15379 |
6032 |
2256 |
1204 |
597 |
371 |
185 |
0 |
| OW |
0 |
0 |
71 |
214 |
217 |
167 |
188 |
0 |
| VODI |
0 |
0 |
33 |
155 |
297 |
484 |
422 |
0 |
| ODI |
0 |
0 |
7 |
39 |
115 |
510 |
881 |
0 |
| CDI |
0 |
0 |
6 |
19 |
82 |
218 |
2062 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
54 |
1798 |
4082 |
|
...date precedes bulletin
|
Date: 2017-07-04:
| 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 |
15790 |
6043 |
2764 |
766 |
703 |
359 |
237 |
7 |
| OW |
0 |
0 |
33 |
65 |
157 |
180 |
252 |
9 |
| VODI |
0 |
0 |
3 |
42 |
73 |
290 |
708 |
11 |
| ODI |
0 |
0 |
1 |
12 |
28 |
136 |
1217 |
9 |
| CDI |
0 |
0 |
2 |
13 |
11 |
115 |
2323 |
143 |
| VCDI |
0 |
0 |
0 |
1 |
5 |
11 |
1373 |
4267 |
|
...date precedes bulletin
|
Date: 2017-07-06:
| 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 |
16017 |
6259 |
2298 |
823 |
552 |
635 |
286 |
0 |
| OW |
0 |
0 |
28 |
52 |
66 |
312 |
328 |
0 |
| VODI |
0 |
0 |
2 |
41 |
52 |
336 |
823 |
0 |
| ODI |
0 |
0 |
1 |
10 |
33 |
184 |
1161 |
0 |
| CDI |
0 |
0 |
2 |
9 |
18 |
119 |
2211 |
234 |
| VCDI |
0 |
0 |
0 |
2 |
6 |
16 |
1066 |
4177 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16017 |
6259 |
2308 |
825 |
564 |
664 |
324 |
0 |
| OW |
0 |
0 |
18 |
58 |
56 |
295 |
306 |
0 |
| VODI |
0 |
0 |
2 |
34 |
50 |
343 |
848 |
0 |
| ODI |
0 |
0 |
1 |
11 |
28 |
152 |
1110 |
0 |
| CDI |
0 |
0 |
2 |
7 |
24 |
135 |
2235 |
245 |
| VCDI |
0 |
0 |
0 |
2 |
5 |
13 |
1052 |
4166 |
|
Date: 2017-07-10:
| 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 |
16205 |
6442 |
2590 |
998 |
646 |
266 |
159 |
0 |
| OW |
0 |
0 |
33 |
92 |
363 |
178 |
103 |
0 |
| VODI |
0 |
0 |
16 |
89 |
317 |
434 |
337 |
0 |
| ODI |
0 |
0 |
2 |
49 |
120 |
332 |
1166 |
0 |
| CDI |
0 |
0 |
0 |
9 |
15 |
89 |
1929 |
615 |
| VCDI |
0 |
0 |
0 |
1 |
4 |
1 |
808 |
3751 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16205 |
6436 |
2581 |
978 |
739 |
337 |
206 |
0 |
| OW |
0 |
6 |
36 |
116 |
328 |
280 |
144 |
0 |
| VODI |
0 |
0 |
24 |
85 |
255 |
358 |
596 |
0 |
| ODI |
0 |
0 |
0 |
44 |
90 |
182 |
941 |
0 |
| CDI |
0 |
0 |
0 |
13 |
50 |
141 |
1949 |
565 |
| VCDI |
0 |
0 |
0 |
2 |
3 |
2 |
666 |
3801 |
|
Date: 2017-07-12:
| 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 |
16025 |
6557 |
2687 |
910 |
711 |
576 |
177 |
0 |
| OW |
0 |
0 |
49 |
109 |
237 |
291 |
175 |
0 |
| VODI |
0 |
0 |
14 |
108 |
216 |
381 |
580 |
0 |
| ODI |
0 |
0 |
5 |
29 |
69 |
173 |
1181 |
0 |
| CDI |
0 |
0 |
1 |
7 |
14 |
77 |
1788 |
843 |
| VCDI |
0 |
0 |
0 |
2 |
4 |
3 |
716 |
3444 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16025 |
6557 |
2680 |
894 |
711 |
696 |
261 |
0 |
| OW |
0 |
0 |
49 |
136 |
258 |
307 |
257 |
0 |
| VODI |
0 |
0 |
24 |
83 |
145 |
247 |
744 |
0 |
| ODI |
0 |
0 |
3 |
40 |
91 |
125 |
892 |
0 |
| CDI |
0 |
0 |
0 |
10 |
44 |
126 |
1932 |
735 |
| VCDI |
0 |
0 |
0 |
2 |
2 |
0 |
531 |
3552 |
|
Date: 2017-07-14:
| 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 |
16034 |
6511 |
2989 |
1088 |
877 |
263 |
133 |
0 |
| OW |
0 |
0 |
50 |
182 |
413 |
195 |
115 |
0 |
| VODI |
0 |
0 |
15 |
134 |
335 |
431 |
425 |
0 |
| ODI |
0 |
0 |
5 |
35 |
106 |
208 |
1010 |
0 |
| CDI |
0 |
0 |
0 |
12 |
27 |
87 |
1787 |
830 |
| VCDI |
0 |
0 |
0 |
3 |
0 |
2 |
559 |
3298 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16034 |
6511 |
2958 |
1086 |
1067 |
375 |
204 |
0 |
| OW |
0 |
0 |
75 |
192 |
279 |
222 |
196 |
0 |
| VODI |
0 |
0 |
23 |
116 |
237 |
286 |
589 |
0 |
| ODI |
0 |
0 |
3 |
42 |
117 |
158 |
712 |
0 |
| CDI |
0 |
0 |
0 |
15 |
54 |
141 |
1805 |
895 |
| VCDI |
0 |
0 |
0 |
3 |
4 |
4 |
523 |
3233 |
|
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