Validation of sea ice concentration
Bulletin date: 2018-07-12
Model vs. observations, sea ice class contingency tables
Date: 2018-07-06:
| 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 |
17830 |
7002 |
1192 |
1256 |
814 |
255 |
153 |
0 |
| OW |
0 |
0 |
27 |
220 |
388 |
393 |
181 |
0 |
| VODI |
0 |
0 |
0 |
73 |
246 |
735 |
931 |
0 |
| ODI |
0 |
0 |
0 |
27 |
166 |
393 |
273 |
0 |
| CDI |
0 |
0 |
3 |
10 |
51 |
379 |
1187 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
3 |
7 |
1093 |
2867 |
|
...date precedes bulletin
|
Date: 2018-07-10:
| 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 |
18199 |
7085 |
1513 |
1190 |
750 |
312 |
142 |
16 |
| OW |
0 |
5 |
80 |
181 |
383 |
315 |
144 |
8 |
| VODI |
0 |
1 |
8 |
57 |
351 |
626 |
573 |
7 |
| ODI |
0 |
1 |
0 |
7 |
101 |
725 |
495 |
5 |
| CDI |
0 |
1 |
0 |
7 |
8 |
154 |
1411 |
453 |
| VCDI |
0 |
2 |
0 |
2 |
0 |
1 |
257 |
2583 |
|
...date precedes bulletin
|
Date: 2018-07-12:
| 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 |
18532 |
7045 |
1557 |
1065 |
816 |
375 |
208 |
23 |
| OW |
0 |
0 |
63 |
175 |
393 |
357 |
275 |
6 |
| VODI |
0 |
1 |
9 |
60 |
347 |
737 |
570 |
6 |
| ODI |
0 |
1 |
1 |
11 |
78 |
414 |
334 |
3 |
| CDI |
0 |
1 |
0 |
2 |
8 |
69 |
1514 |
556 |
| VCDI |
0 |
2 |
0 |
2 |
0 |
1 |
202 |
2340 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18532 |
7043 |
1568 |
1086 |
900 |
475 |
260 |
23 |
| OW |
0 |
2 |
51 |
138 |
302 |
305 |
250 |
7 |
| VODI |
0 |
1 |
10 |
72 |
344 |
640 |
503 |
5 |
| ODI |
0 |
1 |
1 |
14 |
85 |
448 |
325 |
3 |
| CDI |
0 |
1 |
0 |
3 |
10 |
84 |
1555 |
578 |
| VCDI |
0 |
2 |
0 |
2 |
1 |
1 |
210 |
2318 |
|
Date: 2018-07-16:
| 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 |
18426 |
7108 |
1812 |
1442 |
1005 |
256 |
157 |
18 |
| OW |
0 |
0 |
37 |
158 |
467 |
245 |
142 |
5 |
| VODI |
0 |
0 |
11 |
71 |
367 |
426 |
170 |
12 |
| ODI |
0 |
0 |
3 |
30 |
190 |
541 |
88 |
18 |
| CDI |
0 |
0 |
0 |
2 |
5 |
463 |
1921 |
555 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
133 |
1875 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18426 |
7108 |
1827 |
1427 |
1157 |
437 |
210 |
18 |
| OW |
0 |
0 |
30 |
208 |
516 |
361 |
156 |
8 |
| VODI |
0 |
0 |
6 |
44 |
306 |
561 |
236 |
16 |
| ODI |
0 |
0 |
0 |
21 |
50 |
312 |
369 |
17 |
| CDI |
0 |
0 |
0 |
3 |
5 |
260 |
1536 |
697 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
104 |
1727 |
|
Date: 2018-07-18:
| 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 |
18581 |
7145 |
1985 |
1345 |
1098 |
377 |
150 |
18 |
| OW |
0 |
0 |
45 |
136 |
413 |
302 |
144 |
0 |
| VODI |
0 |
0 |
0 |
56 |
343 |
283 |
157 |
12 |
| ODI |
0 |
0 |
0 |
10 |
114 |
311 |
266 |
21 |
| CDI |
0 |
0 |
0 |
0 |
3 |
228 |
1953 |
979 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
46 |
1638 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18581 |
7145 |
1972 |
1331 |
1245 |
554 |
242 |
18 |
| OW |
0 |
0 |
56 |
169 |
471 |
325 |
189 |
2 |
| VODI |
0 |
0 |
2 |
32 |
205 |
361 |
280 |
15 |
| ODI |
0 |
0 |
0 |
12 |
47 |
194 |
528 |
20 |
| CDI |
0 |
0 |
0 |
3 |
3 |
67 |
1448 |
1109 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
29 |
1504 |
|
Date: 2018-07-20:
| 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 |
18916 |
7338 |
1697 |
1512 |
1171 |
238 |
120 |
18 |
| OW |
0 |
0 |
10 |
142 |
503 |
253 |
70 |
5 |
| VODI |
0 |
0 |
0 |
63 |
303 |
333 |
73 |
15 |
| ODI |
0 |
0 |
0 |
5 |
66 |
469 |
182 |
30 |
| CDI |
0 |
0 |
0 |
0 |
1 |
344 |
1793 |
1252 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
8 |
1229 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18916 |
7338 |
1650 |
1564 |
1420 |
483 |
169 |
17 |
| OW |
0 |
0 |
57 |
134 |
411 |
372 |
86 |
8 |
| VODI |
0 |
0 |
0 |
16 |
172 |
341 |
140 |
16 |
| ODI |
0 |
0 |
0 |
7 |
41 |
379 |
453 |
24 |
| CDI |
0 |
0 |
0 |
1 |
0 |
62 |
1389 |
1469 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
9 |
1015 |
|
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