Validation of sea ice concentration
Bulletin date: 2017-02-23
Model vs. observations, sea ice class contingency tables
Date: 2017-02-17:
| 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 |
14264 |
6387 |
757 |
431 |
153 |
68 |
58 |
0 |
| OW |
0 |
22 |
208 |
170 |
124 |
61 |
63 |
0 |
| VODI |
0 |
0 |
146 |
185 |
183 |
139 |
94 |
0 |
| ODI |
0 |
0 |
26 |
104 |
207 |
203 |
145 |
0 |
| CDI |
0 |
0 |
5 |
65 |
216 |
363 |
393 |
7 |
| VCDI |
0 |
0 |
32 |
90 |
305 |
1119 |
7918 |
3448 |
|
...date precedes bulletin
|
Date: 2017-02-21:
| 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 |
13842 |
6401 |
882 |
489 |
177 |
94 |
15 |
0 |
| OW |
0 |
21 |
118 |
153 |
91 |
68 |
23 |
0 |
| VODI |
0 |
5 |
115 |
179 |
138 |
113 |
42 |
3 |
| ODI |
0 |
0 |
83 |
111 |
163 |
149 |
114 |
9 |
| CDI |
0 |
0 |
18 |
57 |
135 |
357 |
415 |
52 |
| VCDI |
0 |
0 |
5 |
38 |
149 |
832 |
8217 |
4286 |
|
...date precedes bulletin
|
Date: 2017-02-23:
| 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 |
13759 |
6697 |
681 |
446 |
114 |
41 |
7 |
0 |
| OW |
0 |
71 |
135 |
158 |
100 |
55 |
18 |
0 |
| VODI |
0 |
37 |
108 |
142 |
111 |
86 |
53 |
1 |
| ODI |
0 |
10 |
51 |
101 |
97 |
179 |
113 |
5 |
| CDI |
0 |
1 |
25 |
107 |
135 |
292 |
374 |
60 |
| VCDI |
0 |
0 |
23 |
120 |
217 |
903 |
8071 |
4455 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13759 |
6707 |
689 |
450 |
123 |
45 |
10 |
0 |
| OW |
0 |
62 |
129 |
157 |
87 |
45 |
14 |
0 |
| VODI |
0 |
38 |
109 |
144 |
111 |
99 |
58 |
2 |
| ODI |
0 |
8 |
55 |
106 |
106 |
219 |
116 |
6 |
| CDI |
0 |
1 |
19 |
99 |
140 |
272 |
381 |
51 |
| VCDI |
0 |
0 |
22 |
118 |
207 |
876 |
8057 |
4462 |
|
Date: 2017-02-27:
| 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 |
14124 |
6487 |
680 |
362 |
132 |
21 |
6 |
0 |
| OW |
0 |
55 |
202 |
144 |
113 |
26 |
9 |
0 |
| VODI |
0 |
20 |
144 |
182 |
192 |
94 |
57 |
0 |
| ODI |
0 |
1 |
41 |
118 |
208 |
207 |
272 |
14 |
| CDI |
0 |
0 |
11 |
72 |
248 |
417 |
652 |
84 |
| VCDI |
0 |
0 |
27 |
53 |
248 |
812 |
7199 |
4425 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14124 |
6430 |
613 |
367 |
156 |
28 |
10 |
0 |
| OW |
0 |
90 |
162 |
119 |
119 |
39 |
20 |
0 |
| VODI |
0 |
31 |
156 |
130 |
139 |
122 |
91 |
0 |
| ODI |
0 |
11 |
86 |
112 |
116 |
165 |
226 |
14 |
| CDI |
0 |
1 |
54 |
101 |
197 |
293 |
546 |
74 |
| VCDI |
0 |
0 |
34 |
102 |
414 |
930 |
7302 |
4435 |
|
Date: 2017-03-01:
| 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 |
13900 |
6588 |
712 |
299 |
128 |
33 |
10 |
0 |
| OW |
0 |
41 |
196 |
173 |
114 |
57 |
33 |
0 |
| VODI |
0 |
15 |
121 |
159 |
149 |
130 |
95 |
0 |
| ODI |
0 |
0 |
37 |
103 |
150 |
226 |
298 |
0 |
| CDI |
0 |
0 |
18 |
64 |
195 |
367 |
759 |
1 |
| VCDI |
0 |
0 |
31 |
57 |
242 |
1000 |
8120 |
3538 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13900 |
6550 |
681 |
290 |
194 |
60 |
39 |
0 |
| OW |
0 |
53 |
142 |
127 |
112 |
66 |
63 |
0 |
| VODI |
0 |
28 |
106 |
146 |
119 |
162 |
126 |
0 |
| ODI |
0 |
11 |
65 |
92 |
136 |
142 |
197 |
0 |
| CDI |
0 |
2 |
61 |
96 |
136 |
328 |
653 |
1 |
| VCDI |
0 |
0 |
60 |
104 |
281 |
1055 |
8237 |
3538 |
|
Date: 2017-03-03:
| 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 |
13718 |
6542 |
674 |
296 |
142 |
23 |
10 |
0 |
| OW |
0 |
46 |
160 |
178 |
138 |
52 |
45 |
0 |
| VODI |
0 |
16 |
78 |
174 |
187 |
155 |
91 |
0 |
| ODI |
0 |
6 |
36 |
78 |
171 |
246 |
236 |
0 |
| CDI |
0 |
0 |
33 |
69 |
162 |
294 |
879 |
17 |
| VCDI |
0 |
0 |
58 |
89 |
172 |
799 |
8241 |
3848 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13718 |
6516 |
653 |
352 |
207 |
92 |
49 |
0 |
| OW |
0 |
66 |
113 |
131 |
109 |
107 |
75 |
0 |
| VODI |
0 |
20 |
107 |
124 |
164 |
143 |
161 |
0 |
| ODI |
0 |
8 |
47 |
94 |
125 |
179 |
265 |
0 |
| CDI |
0 |
0 |
50 |
69 |
136 |
322 |
741 |
1 |
| VCDI |
0 |
0 |
69 |
114 |
231 |
726 |
8211 |
3864 |
|
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