Validation of sea ice concentration
Bulletin date: 2018-02-15
Model vs. observations, sea ice class contingency tables
Date: 2018-02-09:
| 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 |
14483 |
6952 |
1307 |
313 |
87 |
33 |
2 |
0 |
| OW |
0 |
74 |
247 |
170 |
82 |
35 |
15 |
0 |
| VODI |
0 |
48 |
152 |
153 |
131 |
100 |
58 |
0 |
| ODI |
0 |
20 |
79 |
113 |
137 |
185 |
240 |
6 |
| CDI |
0 |
14 |
43 |
99 |
185 |
311 |
562 |
25 |
| VCDI |
0 |
4 |
72 |
134 |
247 |
685 |
6959 |
3597 |
|
...date precedes bulletin
|
Date: 2018-02-13:
| 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 |
14710 |
7246 |
1234 |
359 |
194 |
95 |
2 |
0 |
| OW |
0 |
44 |
157 |
131 |
108 |
98 |
10 |
0 |
| VODI |
0 |
44 |
131 |
236 |
180 |
149 |
47 |
0 |
| ODI |
0 |
32 |
73 |
136 |
297 |
280 |
206 |
0 |
| CDI |
0 |
24 |
46 |
132 |
239 |
422 |
675 |
9 |
| VCDI |
0 |
342 |
24 |
108 |
154 |
542 |
7537 |
1706 |
|
...date precedes bulletin
|
Date: 2018-02-15:
| 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 |
14867 |
7185 |
1039 |
277 |
158 |
70 |
1 |
0 |
| OW |
0 |
61 |
165 |
126 |
122 |
77 |
8 |
0 |
| VODI |
0 |
34 |
121 |
142 |
215 |
186 |
70 |
0 |
| ODI |
0 |
11 |
46 |
110 |
229 |
334 |
237 |
0 |
| CDI |
0 |
29 |
31 |
69 |
161 |
434 |
661 |
37 |
| VCDI |
0 |
343 |
32 |
76 |
124 |
546 |
7619 |
2106 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14867 |
7188 |
1058 |
286 |
197 |
89 |
3 |
0 |
| OW |
0 |
56 |
146 |
125 |
92 |
86 |
5 |
0 |
| VODI |
0 |
31 |
112 |
140 |
223 |
178 |
73 |
0 |
| ODI |
0 |
13 |
50 |
90 |
216 |
263 |
227 |
0 |
| CDI |
0 |
29 |
29 |
68 |
148 |
424 |
595 |
35 |
| VCDI |
0 |
346 |
39 |
91 |
133 |
607 |
7693 |
2108 |
|
Date: 2018-02-19:
| 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 |
14716 |
6919 |
977 |
460 |
235 |
76 |
13 |
0 |
| OW |
0 |
27 |
218 |
122 |
109 |
89 |
56 |
0 |
| VODI |
0 |
7 |
153 |
127 |
146 |
192 |
84 |
19 |
| ODI |
0 |
1 |
33 |
56 |
148 |
204 |
341 |
126 |
| CDI |
0 |
0 |
2 |
25 |
90 |
315 |
1107 |
73 |
| VCDI |
0 |
0 |
0 |
6 |
18 |
503 |
7037 |
3329 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14716 |
6882 |
961 |
412 |
238 |
85 |
29 |
0 |
| OW |
0 |
41 |
171 |
117 |
82 |
75 |
44 |
0 |
| VODI |
0 |
22 |
154 |
88 |
104 |
136 |
117 |
32 |
| ODI |
0 |
5 |
69 |
76 |
95 |
149 |
270 |
75 |
| CDI |
0 |
4 |
25 |
63 |
107 |
186 |
630 |
92 |
| VCDI |
0 |
0 |
3 |
40 |
120 |
748 |
7548 |
3348 |
|
Date: 2018-02-21:
| 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 |
14786 |
6759 |
1087 |
363 |
227 |
83 |
14 |
0 |
| OW |
0 |
106 |
157 |
142 |
96 |
95 |
52 |
0 |
| VODI |
0 |
12 |
130 |
106 |
115 |
136 |
145 |
0 |
| ODI |
0 |
3 |
43 |
64 |
66 |
139 |
311 |
12 |
| CDI |
0 |
1 |
17 |
43 |
93 |
159 |
803 |
79 |
| VCDI |
0 |
0 |
5 |
23 |
51 |
298 |
7073 |
4265 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14786 |
6743 |
1035 |
370 |
253 |
103 |
22 |
0 |
| OW |
0 |
104 |
128 |
124 |
85 |
92 |
44 |
0 |
| VODI |
0 |
25 |
149 |
96 |
82 |
129 |
186 |
0 |
| ODI |
0 |
5 |
79 |
56 |
71 |
114 |
369 |
12 |
| CDI |
0 |
3 |
32 |
56 |
81 |
130 |
745 |
125 |
| VCDI |
0 |
1 |
16 |
39 |
76 |
342 |
7032 |
4219 |
|
Date: 2018-02-23:
| 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 |
14948 |
6925 |
867 |
288 |
161 |
84 |
5 |
0 |
| OW |
0 |
202 |
209 |
140 |
66 |
64 |
29 |
0 |
| VODI |
0 |
68 |
141 |
123 |
116 |
111 |
163 |
6 |
| ODI |
0 |
10 |
74 |
56 |
76 |
116 |
268 |
22 |
| CDI |
0 |
4 |
38 |
48 |
72 |
177 |
630 |
111 |
| VCDI |
0 |
2 |
18 |
27 |
90 |
473 |
6995 |
4136 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14948 |
6876 |
852 |
287 |
158 |
105 |
31 |
0 |
| OW |
0 |
220 |
186 |
112 |
77 |
62 |
70 |
0 |
| VODI |
0 |
92 |
136 |
119 |
101 |
111 |
149 |
0 |
| ODI |
0 |
17 |
101 |
68 |
94 |
133 |
252 |
3 |
| CDI |
0 |
5 |
50 |
61 |
56 |
157 |
646 |
101 |
| VCDI |
0 |
1 |
22 |
35 |
95 |
457 |
6942 |
4171 |
|
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