Validation of sea ice concentration
Bulletin date: 2018-10-04
Model vs. observations, sea ice class contingency tables
Date: 2018-09-28:
| 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 |
24934 |
6081 |
447 |
275 |
85 |
27 |
1 |
0 |
| OW |
0 |
100 |
30 |
47 |
101 |
16 |
0 |
0 |
| VODI |
0 |
41 |
42 |
34 |
122 |
44 |
18 |
0 |
| ODI |
0 |
14 |
13 |
33 |
55 |
86 |
19 |
0 |
| CDI |
0 |
0 |
15 |
13 |
51 |
204 |
278 |
2 |
| VCDI |
0 |
0 |
0 |
3 |
22 |
162 |
1740 |
3004 |
|
...date precedes bulletin
|
Date: 2018-10-02:
| 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 |
24820 |
5775 |
744 |
289 |
108 |
18 |
1 |
0 |
| OW |
0 |
6 |
67 |
30 |
53 |
45 |
0 |
0 |
| VODI |
0 |
0 |
34 |
59 |
36 |
69 |
7 |
0 |
| ODI |
0 |
0 |
6 |
49 |
40 |
101 |
32 |
0 |
| CDI |
0 |
0 |
1 |
22 |
43 |
172 |
285 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
258 |
2073 |
2907 |
|
...date precedes bulletin
|
Date: 2018-10-04:
| 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 |
24686 |
5955 |
512 |
294 |
108 |
14 |
1 |
0 |
| OW |
0 |
20 |
38 |
57 |
67 |
29 |
6 |
0 |
| VODI |
0 |
1 |
38 |
49 |
61 |
49 |
11 |
0 |
| ODI |
0 |
0 |
5 |
36 |
44 |
80 |
57 |
0 |
| CDI |
0 |
0 |
0 |
17 |
51 |
144 |
242 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
137 |
2612 |
2728 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24686 |
5935 |
502 |
291 |
100 |
15 |
1 |
0 |
| OW |
0 |
31 |
41 |
54 |
72 |
25 |
4 |
0 |
| VODI |
0 |
10 |
40 |
50 |
55 |
49 |
12 |
0 |
| ODI |
0 |
0 |
10 |
32 |
48 |
82 |
55 |
0 |
| CDI |
0 |
0 |
0 |
26 |
56 |
139 |
220 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
143 |
2637 |
2728 |
|
Date: 2018-10-08:
| 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 |
24597 |
5749 |
496 |
310 |
158 |
49 |
3 |
0 |
| OW |
0 |
4 |
27 |
13 |
68 |
63 |
6 |
0 |
| VODI |
0 |
0 |
15 |
21 |
56 |
116 |
14 |
0 |
| ODI |
0 |
0 |
1 |
18 |
45 |
159 |
49 |
0 |
| CDI |
0 |
0 |
1 |
15 |
33 |
185 |
394 |
3 |
| VCDI |
0 |
0 |
0 |
19 |
32 |
207 |
2845 |
2388 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24597 |
5695 |
461 |
282 |
146 |
66 |
7 |
0 |
| OW |
0 |
56 |
43 |
29 |
65 |
88 |
9 |
0 |
| VODI |
0 |
2 |
34 |
25 |
64 |
103 |
27 |
0 |
| ODI |
0 |
0 |
1 |
24 |
42 |
104 |
86 |
0 |
| CDI |
0 |
0 |
1 |
15 |
42 |
183 |
249 |
4 |
| VCDI |
0 |
0 |
0 |
21 |
33 |
235 |
2933 |
2387 |
|
Date: 2018-10-10:
| 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 |
24534 |
5245 |
798 |
403 |
211 |
40 |
3 |
0 |
| OW |
0 |
0 |
19 |
61 |
65 |
25 |
9 |
0 |
| VODI |
0 |
0 |
6 |
51 |
51 |
55 |
45 |
0 |
| ODI |
0 |
0 |
1 |
22 |
42 |
81 |
58 |
0 |
| CDI |
0 |
0 |
0 |
18 |
27 |
196 |
302 |
11 |
| VCDI |
0 |
0 |
0 |
1 |
36 |
324 |
2961 |
2458 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24534 |
5243 |
780 |
382 |
202 |
50 |
6 |
0 |
| OW |
0 |
2 |
37 |
72 |
72 |
38 |
17 |
0 |
| VODI |
0 |
0 |
6 |
68 |
63 |
60 |
78 |
0 |
| ODI |
0 |
0 |
1 |
21 |
34 |
114 |
80 |
0 |
| CDI |
0 |
0 |
0 |
13 |
28 |
133 |
241 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
33 |
326 |
2956 |
2468 |
|
Date: 2018-10-12:
| 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 |
24256 |
5676 |
668 |
367 |
98 |
52 |
6 |
0 |
| OW |
0 |
2 |
29 |
57 |
72 |
35 |
4 |
0 |
| VODI |
0 |
0 |
7 |
38 |
63 |
66 |
33 |
0 |
| ODI |
0 |
0 |
1 |
13 |
41 |
73 |
57 |
0 |
| CDI |
0 |
0 |
0 |
5 |
28 |
157 |
266 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
217 |
2708 |
3014 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24256 |
5670 |
597 |
350 |
111 |
57 |
6 |
0 |
| OW |
0 |
8 |
80 |
41 |
61 |
49 |
7 |
0 |
| VODI |
0 |
0 |
26 |
52 |
54 |
81 |
66 |
0 |
| ODI |
0 |
0 |
2 |
22 |
39 |
60 |
82 |
0 |
| CDI |
0 |
0 |
0 |
15 |
35 |
143 |
201 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
46 |
210 |
2712 |
3019 |
|
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