Validation of sea ice concentration
Bulletin date: 2018-12-13
Model vs. observations, sea ice class contingency tables
Date: 2018-12-07:
| 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 |
16819 |
7486 |
821 |
226 |
37 |
47 |
119 |
0 |
| OW |
0 |
187 |
154 |
138 |
40 |
11 |
26 |
0 |
| VODI |
0 |
182 |
186 |
163 |
139 |
51 |
46 |
0 |
| ODI |
0 |
75 |
85 |
125 |
116 |
60 |
134 |
1 |
| CDI |
0 |
63 |
70 |
105 |
143 |
143 |
312 |
11 |
| VCDI |
0 |
36 |
125 |
233 |
243 |
354 |
5374 |
3473 |
|
...date precedes bulletin
|
Date: 2018-12-11:
| 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 |
16559 |
7723 |
613 |
391 |
178 |
65 |
127 |
0 |
| OW |
0 |
142 |
107 |
135 |
137 |
99 |
46 |
0 |
| VODI |
0 |
70 |
65 |
117 |
146 |
182 |
80 |
0 |
| ODI |
0 |
26 |
45 |
77 |
146 |
303 |
142 |
4 |
| CDI |
0 |
5 |
32 |
113 |
234 |
330 |
527 |
88 |
| VCDI |
0 |
0 |
17 |
91 |
173 |
410 |
4804 |
3610 |
|
...date precedes bulletin
|
Date: 2018-12-13:
| 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 |
16157 |
7840 |
803 |
469 |
99 |
40 |
59 |
0 |
| OW |
0 |
140 |
145 |
194 |
69 |
29 |
23 |
0 |
| VODI |
0 |
83 |
106 |
202 |
202 |
79 |
40 |
0 |
| ODI |
0 |
10 |
78 |
109 |
180 |
129 |
107 |
2 |
| CDI |
0 |
3 |
37 |
105 |
187 |
274 |
477 |
21 |
| VCDI |
0 |
0 |
13 |
116 |
260 |
632 |
5582 |
3058 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16157 |
7823 |
825 |
489 |
101 |
33 |
60 |
0 |
| OW |
0 |
151 |
118 |
173 |
76 |
35 |
23 |
0 |
| VODI |
0 |
87 |
113 |
188 |
187 |
76 |
43 |
0 |
| ODI |
0 |
11 |
68 |
130 |
176 |
128 |
100 |
4 |
| CDI |
0 |
4 |
45 |
94 |
170 |
274 |
482 |
23 |
| VCDI |
0 |
0 |
13 |
121 |
287 |
637 |
5580 |
3054 |
|
Date: 2018-12-17:
| 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 |
16592 |
7419 |
1035 |
439 |
95 |
62 |
39 |
0 |
| OW |
0 |
49 |
168 |
233 |
99 |
61 |
21 |
0 |
| VODI |
0 |
13 |
107 |
236 |
142 |
107 |
28 |
0 |
| ODI |
0 |
0 |
36 |
111 |
164 |
158 |
79 |
0 |
| CDI |
0 |
0 |
8 |
86 |
105 |
350 |
466 |
25 |
| VCDI |
0 |
0 |
0 |
40 |
129 |
705 |
5432 |
3320 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16592 |
7259 |
949 |
447 |
110 |
66 |
42 |
0 |
| OW |
0 |
122 |
140 |
161 |
58 |
29 |
14 |
0 |
| VODI |
0 |
88 |
124 |
213 |
142 |
83 |
27 |
0 |
| ODI |
0 |
9 |
91 |
104 |
119 |
128 |
65 |
0 |
| CDI |
0 |
3 |
36 |
89 |
115 |
188 |
216 |
17 |
| VCDI |
0 |
0 |
14 |
131 |
190 |
949 |
5701 |
3328 |
|
Date: 2018-12-19:
| 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 |
16515 |
7418 |
888 |
396 |
83 |
16 |
41 |
0 |
| OW |
1 |
49 |
177 |
170 |
65 |
27 |
13 |
0 |
| VODI |
0 |
46 |
127 |
235 |
145 |
69 |
42 |
0 |
| ODI |
0 |
8 |
69 |
185 |
121 |
108 |
52 |
1 |
| CDI |
0 |
3 |
37 |
106 |
131 |
177 |
235 |
28 |
| VCDI |
0 |
0 |
1 |
53 |
135 |
460 |
5780 |
3946 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16514 |
7297 |
826 |
393 |
73 |
23 |
44 |
0 |
| OW |
2 |
116 |
187 |
149 |
71 |
12 |
11 |
0 |
| VODI |
0 |
68 |
116 |
198 |
118 |
70 |
28 |
0 |
| ODI |
0 |
29 |
79 |
159 |
122 |
93 |
65 |
1 |
| CDI |
0 |
11 |
75 |
126 |
132 |
172 |
208 |
34 |
| VCDI |
0 |
3 |
16 |
120 |
164 |
487 |
5807 |
3940 |
|
Date: 2018-12-21:
| 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 |
16955 |
6962 |
727 |
355 |
72 |
29 |
53 |
0 |
| OW |
6 |
124 |
187 |
135 |
67 |
28 |
31 |
0 |
| VODI |
0 |
78 |
141 |
168 |
125 |
62 |
74 |
0 |
| ODI |
0 |
42 |
90 |
126 |
135 |
101 |
60 |
0 |
| CDI |
0 |
14 |
78 |
96 |
112 |
179 |
237 |
38 |
| VCDI |
0 |
0 |
63 |
131 |
158 |
615 |
5661 |
3844 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16961 |
6893 |
699 |
389 |
98 |
63 |
69 |
0 |
| OW |
0 |
132 |
188 |
136 |
77 |
37 |
48 |
0 |
| VODI |
0 |
88 |
170 |
133 |
90 |
69 |
79 |
0 |
| ODI |
0 |
35 |
62 |
128 |
114 |
69 |
110 |
0 |
| CDI |
0 |
56 |
65 |
82 |
126 |
130 |
210 |
52 |
| VCDI |
0 |
16 |
102 |
143 |
164 |
646 |
5600 |
3830 |
|
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