Validation of sea ice concentration
Bulletin date: 2017-08-03
Model vs. observations, sea ice class contingency tables
Date: 2017-07-28:
| 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 |
16934 |
8570 |
2097 |
1434 |
816 |
361 |
153 |
0 |
| OW |
0 |
0 |
24 |
84 |
211 |
235 |
144 |
0 |
| VODI |
0 |
0 |
1 |
34 |
120 |
351 |
394 |
0 |
| ODI |
0 |
0 |
3 |
5 |
52 |
140 |
1229 |
11 |
| CDI |
0 |
0 |
3 |
0 |
34 |
119 |
2729 |
964 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
2 |
230 |
675 |
|
...date precedes bulletin
|
Date: 2017-08-01:
| 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 |
18979 |
7672 |
1263 |
1629 |
664 |
231 |
67 |
0 |
| OW |
0 |
1 |
24 |
151 |
216 |
83 |
41 |
0 |
| VODI |
0 |
0 |
9 |
74 |
257 |
172 |
83 |
0 |
| ODI |
0 |
0 |
6 |
22 |
143 |
651 |
357 |
0 |
| CDI |
0 |
0 |
0 |
4 |
32 |
505 |
2671 |
1539 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
16 |
597 |
|
...date precedes bulletin
|
Date: 2017-08-03:
| 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 |
18775 |
7867 |
1508 |
1406 |
709 |
234 |
58 |
0 |
| OW |
0 |
0 |
27 |
113 |
227 |
115 |
36 |
0 |
| VODI |
0 |
0 |
9 |
49 |
248 |
256 |
109 |
0 |
| ODI |
0 |
0 |
5 |
17 |
98 |
785 |
327 |
0 |
| CDI |
0 |
0 |
1 |
4 |
42 |
436 |
2502 |
1673 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
121 |
402 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18775 |
7867 |
1507 |
1418 |
724 |
246 |
61 |
0 |
| OW |
0 |
0 |
26 |
101 |
205 |
103 |
32 |
0 |
| VODI |
0 |
0 |
10 |
44 |
255 |
262 |
115 |
0 |
| ODI |
0 |
0 |
4 |
22 |
96 |
693 |
406 |
8 |
| CDI |
0 |
0 |
3 |
4 |
44 |
521 |
2374 |
1658 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
165 |
409 |
|
Date: 2017-08-07:
| 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 |
19467 |
7550 |
1666 |
1423 |
408 |
88 |
65 |
0 |
| OW |
0 |
0 |
14 |
132 |
200 |
34 |
26 |
0 |
| VODI |
0 |
0 |
5 |
46 |
299 |
187 |
54 |
0 |
| ODI |
0 |
0 |
3 |
9 |
112 |
637 |
634 |
96 |
| CDI |
0 |
0 |
2 |
2 |
18 |
251 |
2350 |
928 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3 |
440 |
1010 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19467 |
7550 |
1654 |
1391 |
408 |
90 |
78 |
0 |
| OW |
0 |
0 |
25 |
147 |
192 |
79 |
24 |
0 |
| VODI |
0 |
0 |
6 |
61 |
327 |
280 |
126 |
0 |
| ODI |
0 |
0 |
5 |
11 |
87 |
575 |
733 |
62 |
| CDI |
0 |
0 |
0 |
2 |
23 |
176 |
2376 |
1422 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
232 |
550 |
|
Date: 2017-08-09:
| 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 |
19283 |
7689 |
1433 |
1708 |
458 |
125 |
57 |
0 |
| OW |
0 |
0 |
12 |
130 |
155 |
72 |
26 |
0 |
| VODI |
0 |
0 |
10 |
43 |
274 |
229 |
73 |
0 |
| ODI |
0 |
0 |
4 |
5 |
49 |
709 |
802 |
36 |
| CDI |
0 |
0 |
0 |
1 |
27 |
198 |
2399 |
685 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
4 |
466 |
997 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19283 |
7686 |
1415 |
1668 |
428 |
144 |
71 |
0 |
| OW |
0 |
3 |
29 |
137 |
183 |
112 |
31 |
0 |
| VODI |
0 |
0 |
11 |
74 |
280 |
307 |
159 |
0 |
| ODI |
0 |
0 |
4 |
8 |
50 |
537 |
873 |
100 |
| CDI |
0 |
0 |
0 |
0 |
22 |
237 |
2525 |
1151 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
164 |
467 |
|
Date: 2017-08-11:
| 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 |
19519 |
7703 |
1413 |
1621 |
410 |
105 |
56 |
0 |
| OW |
0 |
0 |
9 |
125 |
212 |
57 |
30 |
0 |
| VODI |
0 |
0 |
6 |
45 |
308 |
241 |
88 |
0 |
| ODI |
0 |
0 |
1 |
9 |
52 |
743 |
901 |
1 |
| CDI |
0 |
0 |
0 |
1 |
30 |
204 |
2678 |
337 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
319 |
935 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19519 |
7689 |
1411 |
1573 |
389 |
113 |
73 |
0 |
| OW |
0 |
14 |
10 |
162 |
237 |
127 |
41 |
0 |
| VODI |
0 |
0 |
6 |
53 |
325 |
310 |
182 |
0 |
| ODI |
0 |
0 |
2 |
12 |
32 |
559 |
1106 |
4 |
| CDI |
0 |
0 |
0 |
1 |
29 |
241 |
2663 |
1157 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
7 |
112 |
|
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