Validation of sea ice concentration
Bulletin date: 2017-11-23
Model vs. observations, sea ice class contingency tables
Date: 2017-11-17:
| 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 |
18883 |
6641 |
983 |
339 |
186 |
151 |
120 |
0 |
| OW |
0 |
205 |
162 |
110 |
49 |
37 |
13 |
0 |
| VODI |
0 |
41 |
184 |
160 |
152 |
78 |
46 |
0 |
| ODI |
0 |
0 |
103 |
138 |
148 |
229 |
91 |
0 |
| CDI |
0 |
0 |
36 |
82 |
84 |
263 |
165 |
18 |
| VCDI |
0 |
0 |
5 |
31 |
135 |
601 |
4235 |
3255 |
|
...date precedes bulletin
|
Date: 2017-11-21:
| 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 |
17936 |
7240 |
864 |
329 |
185 |
177 |
99 |
0 |
| OW |
0 |
133 |
129 |
96 |
68 |
95 |
23 |
0 |
| VODI |
0 |
81 |
65 |
77 |
114 |
132 |
60 |
0 |
| ODI |
0 |
30 |
60 |
72 |
106 |
207 |
83 |
1 |
| CDI |
0 |
2 |
17 |
61 |
93 |
527 |
244 |
33 |
| VCDI |
0 |
0 |
0 |
13 |
64 |
442 |
4230 |
3971 |
|
...date precedes bulletin
|
Date: 2017-11-23:
| 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 |
17375 |
7355 |
792 |
428 |
184 |
119 |
105 |
0 |
| OW |
0 |
151 |
101 |
105 |
75 |
75 |
16 |
0 |
| VODI |
0 |
46 |
100 |
89 |
101 |
141 |
55 |
0 |
| ODI |
0 |
20 |
34 |
53 |
101 |
176 |
84 |
2 |
| CDI |
0 |
13 |
24 |
48 |
123 |
391 |
211 |
79 |
| VCDI |
0 |
1 |
7 |
34 |
89 |
1016 |
4586 |
3654 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17375 |
7388 |
792 |
438 |
191 |
132 |
112 |
0 |
| OW |
0 |
107 |
95 |
94 |
70 |
63 |
17 |
0 |
| VODI |
0 |
48 |
95 |
78 |
97 |
120 |
52 |
0 |
| ODI |
0 |
24 |
42 |
62 |
107 |
184 |
73 |
2 |
| CDI |
0 |
14 |
24 |
50 |
121 |
431 |
245 |
96 |
| VCDI |
0 |
5 |
10 |
35 |
87 |
988 |
4558 |
3637 |
|
Date: 2017-11-27:
| 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 |
16312 |
7229 |
1063 |
535 |
393 |
247 |
113 |
0 |
| OW |
0 |
26 |
111 |
132 |
144 |
128 |
20 |
0 |
| VODI |
0 |
4 |
45 |
127 |
200 |
231 |
26 |
0 |
| ODI |
0 |
0 |
10 |
34 |
117 |
325 |
63 |
0 |
| CDI |
0 |
0 |
2 |
22 |
170 |
496 |
317 |
9 |
| VCDI |
0 |
0 |
0 |
6 |
73 |
917 |
5758 |
2754 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16312 |
7102 |
952 |
500 |
405 |
283 |
121 |
0 |
| OW |
0 |
96 |
103 |
131 |
130 |
126 |
23 |
0 |
| VODI |
0 |
42 |
71 |
96 |
149 |
164 |
27 |
0 |
| ODI |
0 |
12 |
36 |
43 |
113 |
234 |
51 |
0 |
| CDI |
0 |
6 |
26 |
44 |
131 |
450 |
208 |
0 |
| VCDI |
0 |
1 |
43 |
42 |
169 |
1087 |
5867 |
2763 |
|
Date: 2017-11-29:
| 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 |
16197 |
7332 |
941 |
468 |
290 |
265 |
158 |
0 |
| OW |
0 |
18 |
144 |
127 |
100 |
129 |
27 |
0 |
| VODI |
0 |
2 |
69 |
102 |
161 |
209 |
80 |
0 |
| ODI |
0 |
0 |
16 |
47 |
125 |
168 |
153 |
2 |
| CDI |
0 |
0 |
0 |
27 |
71 |
211 |
377 |
38 |
| VCDI |
0 |
0 |
0 |
7 |
48 |
335 |
5623 |
4092 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16197 |
7114 |
828 |
477 |
354 |
367 |
184 |
0 |
| OW |
0 |
78 |
121 |
97 |
89 |
121 |
62 |
0 |
| VODI |
0 |
53 |
73 |
71 |
92 |
152 |
99 |
0 |
| ODI |
0 |
35 |
31 |
29 |
62 |
131 |
184 |
0 |
| CDI |
0 |
40 |
32 |
50 |
70 |
175 |
398 |
22 |
| VCDI |
0 |
32 |
85 |
54 |
128 |
371 |
5491 |
4110 |
|
Date: 2017-12-01:
| 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 |
15886 |
7617 |
835 |
516 |
430 |
178 |
49 |
0 |
| OW |
0 |
85 |
131 |
146 |
85 |
81 |
42 |
0 |
| VODI |
0 |
13 |
127 |
148 |
116 |
131 |
88 |
3 |
| ODI |
0 |
0 |
43 |
105 |
104 |
128 |
171 |
18 |
| CDI |
0 |
0 |
8 |
50 |
97 |
188 |
297 |
34 |
| VCDI |
0 |
0 |
0 |
31 |
81 |
492 |
6626 |
2979 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15886 |
7259 |
788 |
532 |
482 |
244 |
100 |
0 |
| OW |
0 |
101 |
92 |
145 |
67 |
91 |
84 |
0 |
| VODI |
0 |
62 |
77 |
95 |
100 |
114 |
175 |
0 |
| ODI |
0 |
47 |
27 |
53 |
67 |
115 |
176 |
0 |
| CDI |
0 |
49 |
25 |
36 |
82 |
177 |
451 |
5 |
| VCDI |
0 |
197 |
135 |
135 |
115 |
457 |
6287 |
3029 |
|
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