Validation of sea ice concentration
Bulletin date: 2018-07-05
Model vs. observations, sea ice class contingency tables
Date: 2018-06-29:
| 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 |
17281 |
7325 |
1529 |
1063 |
398 |
136 |
205 |
0 |
| OW |
0 |
14 |
160 |
236 |
270 |
113 |
119 |
0 |
| VODI |
0 |
1 |
55 |
169 |
287 |
321 |
560 |
0 |
| ODI |
0 |
0 |
7 |
73 |
98 |
328 |
1644 |
0 |
| CDI |
0 |
0 |
1 |
12 |
43 |
194 |
996 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
20 |
114 |
1718 |
2656 |
|
...date precedes bulletin
|
Date: 2018-07-03:
| 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 |
18388 |
7134 |
893 |
1166 |
309 |
105 |
144 |
0 |
| OW |
0 |
1 |
45 |
377 |
294 |
121 |
98 |
0 |
| VODI |
0 |
0 |
3 |
174 |
388 |
252 |
756 |
0 |
| ODI |
0 |
0 |
0 |
49 |
244 |
447 |
1060 |
0 |
| CDI |
0 |
0 |
0 |
15 |
120 |
617 |
559 |
0 |
| VCDI |
0 |
0 |
3 |
10 |
48 |
91 |
1355 |
2893 |
|
...date precedes bulletin
|
Date: 2018-07-05:
| 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 |
18024 |
7008 |
1071 |
1243 |
683 |
179 |
156 |
0 |
| OW |
0 |
1 |
35 |
310 |
390 |
233 |
107 |
0 |
| VODI |
0 |
0 |
0 |
122 |
359 |
680 |
899 |
0 |
| ODI |
0 |
0 |
0 |
43 |
238 |
359 |
346 |
0 |
| CDI |
0 |
0 |
1 |
18 |
80 |
398 |
1093 |
0 |
| VCDI |
0 |
0 |
2 |
6 |
7 |
5 |
1075 |
2988 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18024 |
7008 |
1078 |
1268 |
790 |
241 |
167 |
0 |
| OW |
0 |
1 |
28 |
273 |
297 |
232 |
172 |
0 |
| VODI |
0 |
0 |
0 |
128 |
339 |
616 |
607 |
0 |
| ODI |
0 |
0 |
0 |
47 |
234 |
355 |
554 |
0 |
| CDI |
0 |
0 |
1 |
18 |
84 |
387 |
1040 |
0 |
| VCDI |
0 |
0 |
2 |
8 |
13 |
23 |
1136 |
2988 |
|
Date: 2018-07-09:
| 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 |
18244 |
6783 |
1396 |
1302 |
748 |
267 |
143 |
0 |
| OW |
0 |
0 |
83 |
226 |
354 |
254 |
79 |
0 |
| VODI |
0 |
1 |
11 |
91 |
316 |
645 |
365 |
0 |
| ODI |
0 |
1 |
1 |
11 |
127 |
962 |
694 |
0 |
| CDI |
0 |
1 |
0 |
9 |
14 |
214 |
1382 |
344 |
| VCDI |
0 |
2 |
0 |
2 |
0 |
6 |
386 |
2695 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18244 |
6783 |
1431 |
1396 |
991 |
509 |
228 |
0 |
| OW |
0 |
0 |
45 |
142 |
275 |
454 |
277 |
0 |
| VODI |
0 |
1 |
15 |
69 |
200 |
700 |
510 |
0 |
| ODI |
0 |
1 |
0 |
12 |
59 |
412 |
264 |
4 |
| CDI |
0 |
1 |
0 |
20 |
34 |
272 |
1240 |
72 |
| VCDI |
0 |
2 |
0 |
2 |
0 |
1 |
530 |
2963 |
|
Date: 2018-07-11:
| 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 |
18561 |
7060 |
1456 |
1073 |
763 |
315 |
161 |
19 |
| OW |
0 |
7 |
82 |
190 |
398 |
313 |
200 |
8 |
| VODI |
0 |
1 |
25 |
53 |
354 |
650 |
654 |
7 |
| ODI |
0 |
1 |
6 |
14 |
79 |
590 |
345 |
3 |
| CDI |
0 |
1 |
0 |
5 |
2 |
106 |
1479 |
505 |
| VCDI |
0 |
2 |
0 |
2 |
0 |
1 |
257 |
2411 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18561 |
7065 |
1492 |
1149 |
1002 |
532 |
315 |
20 |
| OW |
0 |
2 |
44 |
109 |
268 |
430 |
419 |
8 |
| VODI |
0 |
1 |
17 |
47 |
231 |
525 |
352 |
6 |
| ODI |
0 |
1 |
11 |
17 |
76 |
324 |
266 |
4 |
| CDI |
0 |
1 |
5 |
13 |
19 |
163 |
1398 |
221 |
| VCDI |
0 |
2 |
0 |
2 |
0 |
1 |
346 |
2694 |
|
Date: 2018-07-13:
| 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 |
18634 |
7172 |
1461 |
1441 |
719 |
221 |
141 |
25 |
| OW |
0 |
2 |
64 |
260 |
482 |
385 |
209 |
6 |
| VODI |
0 |
1 |
8 |
80 |
400 |
674 |
405 |
4 |
| ODI |
0 |
1 |
1 |
24 |
54 |
394 |
308 |
3 |
| CDI |
0 |
1 |
0 |
2 |
6 |
68 |
1495 |
539 |
| VCDI |
0 |
2 |
0 |
2 |
0 |
1 |
137 |
2327 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18634 |
7165 |
1490 |
1549 |
1056 |
497 |
293 |
26 |
| OW |
0 |
7 |
19 |
158 |
258 |
412 |
289 |
6 |
| VODI |
0 |
3 |
20 |
66 |
259 |
416 |
116 |
5 |
| ODI |
0 |
1 |
4 |
26 |
75 |
319 |
291 |
1 |
| CDI |
0 |
1 |
1 |
8 |
13 |
98 |
1602 |
304 |
| VCDI |
0 |
2 |
0 |
2 |
0 |
1 |
104 |
2562 |
|
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