Validation of sea ice concentration
Bulletin date: 2012-10-25
Model vs. observations, sea ice class contingency tables
Date: 2012-10-19:
| 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 |
23839 |
4966 |
333 |
275 |
106 |
4 |
0 |
0 |
| OW |
47 |
49 |
102 |
71 |
60 |
13 |
0 |
0 |
| VODI |
2 |
17 |
38 |
69 |
93 |
61 |
13 |
0 |
| ODI |
0 |
4 |
10 |
31 |
70 |
117 |
35 |
0 |
| CDI |
0 |
0 |
2 |
38 |
55 |
240 |
142 |
0 |
| VCDI |
0 |
0 |
0 |
54 |
62 |
437 |
3713 |
2251 |
|
...date precedes bulletin
|
Date: 2012-10-23:
| 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 |
23126 |
5391 |
435 |
273 |
108 |
2 |
0 |
0 |
| OW |
101 |
85 |
41 |
58 |
56 |
10 |
0 |
0 |
| VODI |
104 |
36 |
38 |
60 |
76 |
32 |
1 |
0 |
| ODI |
16 |
11 |
20 |
63 |
74 |
47 |
12 |
0 |
| CDI |
0 |
3 |
4 |
33 |
132 |
186 |
77 |
0 |
| VCDI |
0 |
1 |
2 |
69 |
102 |
540 |
3753 |
2241 |
|
...date precedes bulletin
|
Date: 2012-10-25:
| 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 |
21371 |
6597 |
509 |
321 |
154 |
41 |
0 |
0 |
| OW |
0 |
159 |
100 |
117 |
42 |
47 |
0 |
0 |
| VODI |
0 |
25 |
50 |
106 |
133 |
81 |
0 |
0 |
| ODI |
0 |
4 |
17 |
44 |
101 |
114 |
16 |
0 |
| CDI |
0 |
0 |
7 |
28 |
80 |
248 |
34 |
0 |
| VCDI |
0 |
0 |
3 |
97 |
100 |
885 |
2940 |
2848 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21371 |
6761 |
622 |
454 |
251 |
117 |
0 |
0 |
| OW |
0 |
12 |
19 |
46 |
43 |
44 |
0 |
0 |
| VODI |
0 |
8 |
18 |
50 |
74 |
81 |
0 |
0 |
| ODI |
0 |
4 |
13 |
28 |
61 |
120 |
11 |
0 |
| CDI |
0 |
0 |
7 |
26 |
46 |
218 |
25 |
0 |
| VCDI |
0 |
0 |
7 |
109 |
135 |
836 |
2954 |
2848 |
|
Date: 2012-10-29:
| 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 |
21281 |
6796 |
564 |
415 |
90 |
1 |
0 |
0 |
| OW |
0 |
83 |
37 |
125 |
104 |
7 |
0 |
0 |
| VODI |
0 |
54 |
9 |
79 |
127 |
66 |
2 |
0 |
| ODI |
0 |
10 |
8 |
49 |
112 |
135 |
11 |
0 |
| CDI |
0 |
8 |
10 |
25 |
126 |
239 |
84 |
0 |
| VCDI |
0 |
5 |
1 |
73 |
180 |
790 |
2789 |
2924 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21281 |
6839 |
530 |
481 |
163 |
33 |
7 |
0 |
| OW |
0 |
35 |
24 |
31 |
44 |
15 |
3 |
0 |
| VODI |
0 |
26 |
21 |
62 |
73 |
34 |
4 |
0 |
| ODI |
0 |
16 |
14 |
38 |
73 |
70 |
8 |
0 |
| CDI |
0 |
12 |
18 |
30 |
108 |
137 |
36 |
0 |
| VCDI |
0 |
28 |
22 |
124 |
278 |
949 |
2828 |
2924 |
|
Date: 2012-10-31:
| 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 |
21662 |
6168 |
449 |
311 |
162 |
6 |
0 |
0 |
| OW |
0 |
220 |
119 |
122 |
59 |
18 |
1 |
0 |
| VODI |
0 |
102 |
59 |
95 |
91 |
28 |
9 |
0 |
| ODI |
0 |
40 |
18 |
74 |
90 |
74 |
22 |
0 |
| CDI |
0 |
12 |
21 |
35 |
136 |
182 |
69 |
0 |
| VCDI |
0 |
3 |
9 |
30 |
135 |
698 |
3005 |
3085 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21662 |
6307 |
503 |
401 |
223 |
33 |
11 |
0 |
| OW |
0 |
62 |
25 |
36 |
14 |
18 |
7 |
0 |
| VODI |
0 |
65 |
36 |
36 |
42 |
29 |
13 |
0 |
| ODI |
0 |
37 |
31 |
38 |
49 |
41 |
16 |
0 |
| CDI |
0 |
40 |
29 |
80 |
102 |
128 |
38 |
0 |
| VCDI |
0 |
34 |
51 |
76 |
243 |
757 |
3021 |
3085 |
|
Date: 2012-11-02:
| 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 |
20962 |
6353 |
329 |
168 |
160 |
77 |
0 |
0 |
| OW |
15 |
573 |
146 |
142 |
70 |
16 |
0 |
0 |
| VODI |
0 |
72 |
93 |
154 |
181 |
81 |
0 |
0 |
| ODI |
0 |
25 |
29 |
42 |
77 |
170 |
4 |
0 |
| CDI |
0 |
12 |
40 |
35 |
73 |
290 |
18 |
0 |
| VCDI |
0 |
3 |
17 |
30 |
70 |
1111 |
3081 |
2700 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20977 |
6768 |
423 |
347 |
283 |
154 |
0 |
0 |
| OW |
0 |
58 |
30 |
21 |
37 |
26 |
0 |
0 |
| VODI |
0 |
63 |
24 |
29 |
49 |
50 |
0 |
0 |
| ODI |
0 |
42 |
27 |
26 |
33 |
59 |
2 |
0 |
| CDI |
0 |
52 |
49 |
41 |
53 |
113 |
14 |
0 |
| VCDI |
0 |
55 |
101 |
107 |
176 |
1343 |
3087 |
2700 |
|
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