Validation of sea ice concentration
Bulletin date: 2018-12-06
Model vs. observations, sea ice class contingency tables
Date: 2018-11-30:
| 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 |
16234 |
7635 |
808 |
432 |
65 |
147 |
71 |
0 |
| OW |
0 |
80 |
124 |
173 |
68 |
56 |
44 |
0 |
| VODI |
0 |
22 |
76 |
125 |
119 |
90 |
47 |
0 |
| ODI |
0 |
1 |
36 |
80 |
99 |
128 |
86 |
0 |
| CDI |
0 |
0 |
37 |
81 |
77 |
182 |
241 |
48 |
| VCDI |
0 |
0 |
17 |
75 |
142 |
511 |
6188 |
3714 |
|
...date precedes bulletin
|
Date: 2018-12-04:
| 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 |
17170 |
7289 |
708 |
299 |
175 |
104 |
42 |
0 |
| OW |
0 |
93 |
144 |
105 |
57 |
33 |
29 |
0 |
| VODI |
0 |
43 |
108 |
143 |
108 |
73 |
80 |
0 |
| ODI |
0 |
9 |
75 |
91 |
138 |
86 |
110 |
3 |
| CDI |
0 |
0 |
91 |
72 |
158 |
201 |
329 |
6 |
| VCDI |
0 |
0 |
43 |
72 |
236 |
930 |
5497 |
3209 |
|
...date precedes bulletin
|
Date: 2018-12-06:
| 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 |
16875 |
7453 |
781 |
254 |
84 |
59 |
109 |
0 |
| OW |
0 |
165 |
162 |
100 |
63 |
17 |
28 |
0 |
| VODI |
0 |
130 |
152 |
163 |
136 |
53 |
86 |
0 |
| ODI |
0 |
41 |
68 |
93 |
140 |
83 |
149 |
3 |
| CDI |
0 |
26 |
98 |
75 |
116 |
168 |
368 |
11 |
| VCDI |
0 |
0 |
76 |
132 |
291 |
618 |
5292 |
3441 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16875 |
7454 |
784 |
261 |
78 |
59 |
106 |
0 |
| OW |
0 |
207 |
138 |
75 |
59 |
20 |
36 |
0 |
| VODI |
0 |
99 |
176 |
154 |
123 |
47 |
80 |
0 |
| ODI |
0 |
35 |
78 |
115 |
148 |
79 |
127 |
3 |
| CDI |
0 |
20 |
88 |
80 |
116 |
150 |
360 |
9 |
| VCDI |
0 |
0 |
73 |
132 |
306 |
643 |
5323 |
3443 |
|
Date: 2018-12-10:
| 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 |
16473 |
7647 |
978 |
367 |
120 |
80 |
102 |
0 |
| OW |
0 |
147 |
245 |
221 |
81 |
39 |
19 |
0 |
| VODI |
0 |
21 |
132 |
302 |
234 |
177 |
50 |
0 |
| ODI |
0 |
2 |
41 |
173 |
210 |
206 |
130 |
2 |
| CDI |
0 |
0 |
38 |
155 |
145 |
208 |
443 |
72 |
| VCDI |
0 |
0 |
18 |
77 |
99 |
201 |
4780 |
3724 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16473 |
7405 |
857 |
335 |
116 |
88 |
110 |
0 |
| OW |
0 |
216 |
197 |
104 |
51 |
47 |
19 |
0 |
| VODI |
0 |
125 |
165 |
206 |
109 |
117 |
28 |
0 |
| ODI |
0 |
40 |
77 |
150 |
157 |
136 |
89 |
1 |
| CDI |
0 |
27 |
58 |
131 |
140 |
160 |
308 |
45 |
| VCDI |
0 |
4 |
98 |
369 |
316 |
363 |
4970 |
3752 |
|
Date: 2018-12-12:
| 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 |
16466 |
7615 |
769 |
473 |
93 |
55 |
84 |
0 |
| OW |
0 |
146 |
132 |
218 |
81 |
40 |
17 |
0 |
| VODI |
0 |
51 |
93 |
200 |
182 |
111 |
40 |
0 |
| ODI |
0 |
15 |
54 |
130 |
132 |
207 |
132 |
6 |
| CDI |
0 |
3 |
35 |
121 |
198 |
231 |
454 |
62 |
| VCDI |
0 |
0 |
16 |
152 |
342 |
389 |
4937 |
3677 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16466 |
7372 |
662 |
433 |
90 |
64 |
102 |
0 |
| OW |
0 |
189 |
132 |
149 |
52 |
37 |
22 |
0 |
| VODI |
0 |
153 |
107 |
195 |
112 |
84 |
29 |
0 |
| ODI |
0 |
82 |
52 |
102 |
125 |
113 |
82 |
1 |
| CDI |
0 |
29 |
71 |
92 |
133 |
233 |
286 |
37 |
| VCDI |
0 |
5 |
75 |
323 |
516 |
502 |
5143 |
3707 |
|
Date: 2018-12-14:
| 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 |
16215 |
7855 |
752 |
424 |
95 |
38 |
43 |
0 |
| OW |
0 |
156 |
109 |
159 |
93 |
48 |
21 |
0 |
| VODI |
0 |
96 |
93 |
143 |
150 |
131 |
40 |
0 |
| ODI |
0 |
27 |
50 |
104 |
108 |
215 |
90 |
0 |
| CDI |
0 |
0 |
39 |
94 |
111 |
329 |
482 |
9 |
| VCDI |
0 |
0 |
7 |
53 |
117 |
825 |
5013 |
3825 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16215 |
7812 |
685 |
408 |
108 |
31 |
56 |
0 |
| OW |
0 |
160 |
140 |
156 |
93 |
39 |
8 |
0 |
| VODI |
0 |
97 |
92 |
138 |
141 |
156 |
52 |
0 |
| ODI |
0 |
43 |
56 |
92 |
95 |
136 |
134 |
0 |
| CDI |
0 |
17 |
47 |
77 |
87 |
204 |
339 |
22 |
| VCDI |
0 |
5 |
30 |
106 |
150 |
1020 |
5100 |
3812 |
|
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