Validation of sea ice concentration
Bulletin date: 2017-09-14
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2017-09-12:
| 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 |
24699 |
5281 |
1105 |
724 |
233 |
15 |
5 |
0 |
| OW |
0 |
4 |
56 |
88 |
158 |
61 |
6 |
0 |
| VODI |
0 |
0 |
14 |
80 |
238 |
175 |
39 |
0 |
| ODI |
0 |
0 |
2 |
18 |
175 |
459 |
552 |
0 |
| CDI |
0 |
0 |
0 |
4 |
16 |
242 |
1827 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
13 |
699 |
1170 |
|
...date precedes bulletin
|
Date: 2017-09-14:
| 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 |
24989 |
5200 |
1153 |
496 |
182 |
27 |
2 |
0 |
| OW |
0 |
10 |
76 |
100 |
167 |
61 |
7 |
0 |
| VODI |
0 |
0 |
26 |
89 |
231 |
135 |
56 |
0 |
| ODI |
0 |
0 |
3 |
23 |
180 |
387 |
401 |
0 |
| CDI |
0 |
0 |
0 |
2 |
29 |
264 |
1887 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
14 |
751 |
1211 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24989 |
5197 |
1165 |
498 |
187 |
26 |
3 |
0 |
| OW |
0 |
13 |
65 |
80 |
144 |
62 |
7 |
0 |
| VODI |
0 |
0 |
25 |
100 |
235 |
135 |
48 |
0 |
| ODI |
0 |
0 |
3 |
29 |
191 |
402 |
414 |
0 |
| CDI |
0 |
0 |
0 |
3 |
32 |
249 |
1890 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
14 |
742 |
1211 |
|
Date: 2017-09-18:
| 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 |
24998 |
5690 |
872 |
422 |
162 |
25 |
0 |
0 |
| OW |
0 |
6 |
67 |
85 |
88 |
32 |
6 |
0 |
| VODI |
0 |
0 |
13 |
44 |
191 |
126 |
20 |
0 |
| ODI |
0 |
0 |
0 |
8 |
142 |
362 |
232 |
0 |
| CDI |
0 |
0 |
0 |
0 |
15 |
301 |
1665 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
35 |
1218 |
1334 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24998 |
5627 |
750 |
344 |
140 |
23 |
1 |
0 |
| OW |
0 |
69 |
154 |
99 |
101 |
28 |
2 |
0 |
| VODI |
0 |
0 |
44 |
95 |
224 |
208 |
52 |
0 |
| ODI |
0 |
0 |
4 |
19 |
113 |
291 |
287 |
0 |
| CDI |
0 |
0 |
0 |
2 |
20 |
297 |
1570 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
34 |
1229 |
1334 |
|
Date: 2017-09-20:
| 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 |
25265 |
5401 |
666 |
448 |
135 |
17 |
0 |
0 |
| OW |
0 |
8 |
67 |
95 |
96 |
24 |
2 |
0 |
| VODI |
0 |
0 |
24 |
79 |
167 |
63 |
24 |
0 |
| ODI |
0 |
0 |
0 |
24 |
191 |
206 |
106 |
0 |
| CDI |
0 |
0 |
0 |
1 |
55 |
472 |
571 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
126 |
1764 |
2059 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
25265 |
5305 |
566 |
353 |
93 |
8 |
0 |
0 |
| OW |
0 |
93 |
108 |
112 |
81 |
24 |
2 |
0 |
| VODI |
0 |
11 |
74 |
134 |
216 |
115 |
38 |
0 |
| ODI |
0 |
0 |
8 |
41 |
209 |
201 |
122 |
0 |
| CDI |
0 |
0 |
1 |
7 |
45 |
409 |
641 |
87 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
151 |
1664 |
1975 |
|
Date: 2017-09-22:
| 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 |
24991 |
5496 |
612 |
443 |
111 |
16 |
0 |
0 |
| OW |
0 |
2 |
51 |
142 |
87 |
19 |
1 |
0 |
| VODI |
0 |
0 |
25 |
109 |
157 |
63 |
12 |
0 |
| ODI |
0 |
0 |
4 |
56 |
125 |
150 |
80 |
0 |
| CDI |
0 |
0 |
0 |
9 |
55 |
362 |
387 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
21 |
267 |
2129 |
2175 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24991 |
5431 |
540 |
369 |
85 |
16 |
0 |
0 |
| OW |
0 |
57 |
64 |
90 |
63 |
21 |
2 |
0 |
| VODI |
0 |
10 |
67 |
168 |
174 |
90 |
27 |
0 |
| ODI |
0 |
0 |
20 |
86 |
148 |
166 |
103 |
0 |
| CDI |
0 |
0 |
1 |
45 |
59 |
350 |
390 |
12 |
| VCDI |
0 |
0 |
0 |
1 |
27 |
234 |
2087 |
2165 |
|
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