Validation of sea ice concentration
Bulletin date: 2017-08-10
Model vs. observations, sea ice class contingency tables
Date: 2017-08-04:
| 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 |
18942 |
7946 |
1457 |
1488 |
511 |
173 |
68 |
0 |
| OW |
0 |
0 |
21 |
158 |
190 |
91 |
45 |
0 |
| VODI |
0 |
0 |
8 |
54 |
240 |
262 |
144 |
0 |
| ODI |
0 |
0 |
3 |
14 |
66 |
762 |
400 |
7 |
| CDI |
0 |
0 |
2 |
4 |
41 |
265 |
2363 |
1741 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3 |
172 |
518 |
|
...date precedes bulletin
|
Date: 2017-08-08:
| 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 |
19313 |
7745 |
1610 |
1485 |
398 |
119 |
56 |
0 |
| OW |
0 |
0 |
16 |
150 |
149 |
53 |
23 |
0 |
| VODI |
0 |
0 |
11 |
48 |
294 |
189 |
66 |
0 |
| ODI |
0 |
0 |
4 |
5 |
90 |
738 |
679 |
26 |
| CDI |
0 |
0 |
0 |
1 |
22 |
215 |
2488 |
685 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
4 |
471 |
1006 |
|
...date precedes bulletin
|
Date: 2017-08-10:
| 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 |
19372 |
7675 |
1475 |
1643 |
442 |
113 |
59 |
0 |
| OW |
0 |
0 |
10 |
117 |
197 |
56 |
31 |
0 |
| VODI |
0 |
0 |
7 |
44 |
307 |
226 |
78 |
0 |
| ODI |
0 |
0 |
3 |
3 |
48 |
777 |
793 |
35 |
| CDI |
0 |
0 |
0 |
0 |
24 |
201 |
2435 |
591 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
424 |
973 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19372 |
7675 |
1473 |
1641 |
467 |
124 |
71 |
0 |
| OW |
0 |
0 |
12 |
117 |
192 |
48 |
19 |
0 |
| VODI |
0 |
0 |
6 |
46 |
281 |
198 |
80 |
0 |
| ODI |
0 |
0 |
4 |
3 |
53 |
778 |
773 |
55 |
| CDI |
0 |
0 |
0 |
0 |
25 |
225 |
2424 |
552 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
453 |
992 |
|
Date: 2017-08-14:
| 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 |
20646 |
7229 |
1221 |
1372 |
414 |
111 |
46 |
0 |
| OW |
0 |
0 |
26 |
146 |
178 |
45 |
13 |
0 |
| VODI |
0 |
0 |
7 |
80 |
271 |
150 |
31 |
0 |
| ODI |
0 |
0 |
2 |
10 |
247 |
792 |
207 |
0 |
| CDI |
0 |
0 |
0 |
0 |
15 |
1000 |
2548 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
60 |
744 |
548 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20646 |
7226 |
1212 |
1284 |
412 |
123 |
57 |
0 |
| OW |
0 |
3 |
31 |
199 |
180 |
56 |
6 |
0 |
| VODI |
0 |
0 |
10 |
107 |
280 |
245 |
64 |
0 |
| ODI |
0 |
0 |
3 |
17 |
234 |
947 |
674 |
0 |
| CDI |
0 |
0 |
0 |
1 |
19 |
743 |
2221 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
44 |
567 |
538 |
|
Date: 2017-08-16:
| 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 |
21011 |
7573 |
1134 |
1010 |
269 |
66 |
39 |
0 |
| OW |
0 |
12 |
50 |
181 |
145 |
20 |
15 |
0 |
| VODI |
0 |
2 |
21 |
156 |
251 |
89 |
21 |
0 |
| ODI |
0 |
0 |
3 |
30 |
249 |
698 |
287 |
0 |
| CDI |
0 |
0 |
0 |
2 |
15 |
866 |
2568 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
107 |
721 |
548 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21011 |
7532 |
1099 |
934 |
269 |
72 |
47 |
0 |
| OW |
0 |
46 |
56 |
210 |
174 |
19 |
10 |
0 |
| VODI |
0 |
9 |
41 |
162 |
297 |
244 |
78 |
0 |
| ODI |
0 |
0 |
12 |
53 |
179 |
794 |
765 |
0 |
| CDI |
0 |
0 |
0 |
20 |
10 |
604 |
1990 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
113 |
761 |
548 |
|
Date: 2017-08-18:
| 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 |
21929 |
6694 |
1006 |
1063 |
278 |
38 |
7 |
0 |
| OW |
0 |
31 |
41 |
187 |
166 |
13 |
11 |
0 |
| VODI |
0 |
16 |
23 |
148 |
275 |
79 |
21 |
0 |
| ODI |
0 |
1 |
12 |
43 |
304 |
732 |
223 |
0 |
| CDI |
0 |
0 |
1 |
1 |
8 |
753 |
2435 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
209 |
857 |
548 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21929 |
6674 |
982 |
1032 |
281 |
45 |
10 |
0 |
| OW |
0 |
41 |
55 |
220 |
189 |
34 |
16 |
0 |
| VODI |
0 |
22 |
26 |
133 |
354 |
305 |
87 |
0 |
| ODI |
0 |
5 |
19 |
33 |
185 |
792 |
782 |
0 |
| CDI |
0 |
0 |
1 |
24 |
22 |
447 |
1800 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
201 |
859 |
548 |
|
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