Validation of sea ice concentration
Bulletin date: 2017-08-31
Model vs. observations, sea ice class contingency tables
Date: 2017-08-25:
| 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 |
22640 |
5697 |
1265 |
1161 |
334 |
42 |
7 |
0 |
| OW |
0 |
20 |
24 |
136 |
111 |
39 |
7 |
0 |
| VODI |
0 |
5 |
25 |
86 |
208 |
219 |
26 |
0 |
| ODI |
0 |
0 |
1 |
24 |
149 |
736 |
831 |
0 |
| CDI |
0 |
0 |
0 |
1 |
12 |
160 |
1832 |
20 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
7 |
766 |
1564 |
|
...date precedes bulletin
|
Date: 2017-08-29:
| 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 |
21945 |
6162 |
1657 |
929 |
578 |
79 |
6 |
0 |
| OW |
0 |
0 |
49 |
107 |
124 |
66 |
3 |
0 |
| VODI |
0 |
0 |
16 |
69 |
285 |
221 |
34 |
0 |
| ODI |
0 |
0 |
1 |
15 |
124 |
552 |
1101 |
1 |
| CDI |
0 |
0 |
0 |
0 |
5 |
44 |
1735 |
137 |
| VCDI |
0 |
0 |
0 |
2 |
3 |
7 |
477 |
1625 |
|
...date precedes bulletin
|
Date: 2017-08-31:
| 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 |
23996 |
4673 |
1278 |
945 |
366 |
49 |
8 |
0 |
| OW |
0 |
8 |
46 |
179 |
109 |
47 |
8 |
0 |
| VODI |
0 |
2 |
19 |
121 |
321 |
152 |
39 |
0 |
| ODI |
0 |
0 |
0 |
25 |
161 |
596 |
909 |
0 |
| CDI |
0 |
0 |
0 |
0 |
11 |
77 |
1902 |
49 |
| VCDI |
0 |
0 |
0 |
2 |
4 |
6 |
520 |
1531 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23996 |
4677 |
1289 |
966 |
383 |
52 |
8 |
0 |
| OW |
0 |
5 |
32 |
150 |
100 |
47 |
9 |
0 |
| VODI |
0 |
1 |
20 |
131 |
268 |
105 |
36 |
0 |
| ODI |
0 |
0 |
2 |
23 |
203 |
628 |
931 |
0 |
| CDI |
0 |
0 |
0 |
0 |
14 |
89 |
1943 |
61 |
| VCDI |
0 |
0 |
0 |
2 |
4 |
6 |
459 |
1519 |
|
Date: 2017-09-04:
| 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 |
24285 |
4738 |
1267 |
872 |
316 |
33 |
2 |
0 |
| OW |
0 |
3 |
65 |
156 |
125 |
37 |
8 |
0 |
| VODI |
0 |
0 |
18 |
125 |
350 |
113 |
29 |
0 |
| ODI |
0 |
0 |
0 |
15 |
151 |
446 |
907 |
0 |
| CDI |
0 |
0 |
0 |
1 |
6 |
72 |
1750 |
70 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
11 |
685 |
1501 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24285 |
4734 |
1239 |
736 |
327 |
48 |
5 |
0 |
| OW |
0 |
7 |
75 |
183 |
64 |
28 |
13 |
0 |
| VODI |
0 |
0 |
33 |
196 |
291 |
84 |
48 |
0 |
| ODI |
0 |
0 |
3 |
53 |
253 |
438 |
828 |
0 |
| CDI |
0 |
0 |
0 |
1 |
13 |
101 |
1672 |
29 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
13 |
815 |
1542 |
|
Date: 2017-09-06:
| 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 |
24284 |
5040 |
1054 |
847 |
284 |
31 |
7 |
0 |
| OW |
0 |
11 |
36 |
102 |
164 |
53 |
10 |
0 |
| VODI |
0 |
7 |
12 |
70 |
311 |
151 |
61 |
0 |
| ODI |
0 |
0 |
2 |
13 |
110 |
523 |
716 |
1 |
| CDI |
0 |
0 |
0 |
5 |
9 |
86 |
1752 |
173 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
7 |
562 |
1663 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24284 |
5045 |
1026 |
775 |
246 |
43 |
9 |
0 |
| OW |
0 |
10 |
43 |
113 |
120 |
54 |
18 |
0 |
| VODI |
0 |
3 |
32 |
97 |
314 |
147 |
96 |
0 |
| ODI |
0 |
0 |
2 |
42 |
171 |
498 |
671 |
0 |
| CDI |
0 |
0 |
1 |
9 |
27 |
96 |
1715 |
116 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
13 |
599 |
1721 |
|
Date: 2017-09-08:
| 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 |
24539 |
4928 |
1291 |
707 |
147 |
32 |
8 |
0 |
| OW |
0 |
1 |
41 |
176 |
143 |
41 |
25 |
0 |
| VODI |
0 |
0 |
8 |
122 |
270 |
158 |
60 |
0 |
| ODI |
0 |
0 |
0 |
12 |
99 |
526 |
569 |
0 |
| CDI |
0 |
0 |
0 |
0 |
36 |
194 |
1748 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
9 |
875 |
1392 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24539 |
4929 |
1252 |
651 |
137 |
46 |
8 |
0 |
| OW |
0 |
0 |
54 |
149 |
100 |
47 |
40 |
0 |
| VODI |
0 |
0 |
29 |
151 |
264 |
158 |
113 |
0 |
| ODI |
0 |
0 |
5 |
47 |
121 |
473 |
504 |
0 |
| CDI |
0 |
0 |
0 |
19 |
71 |
219 |
1625 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
17 |
995 |
1392 |
|
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