Validation of sea ice concentration
Bulletin date: 2020-03-05
Model vs. observations, sea ice class contingency tables
Date: 2020-02-28:
| 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 |
12857 |
5767 |
997 |
507 |
260 |
168 |
33 |
0 |
| OW |
0 |
25 |
124 |
205 |
175 |
82 |
33 |
0 |
| VODI |
0 |
6 |
159 |
438 |
280 |
218 |
99 |
0 |
| ODI |
0 |
1 |
33 |
98 |
196 |
196 |
172 |
0 |
| CDI |
0 |
0 |
21 |
74 |
141 |
258 |
427 |
0 |
| VCDI |
0 |
0 |
2 |
44 |
168 |
484 |
8382 |
5029 |
|
...date precedes bulletin
|
Date: 2020-03-03:
| 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 |
13064 |
5960 |
689 |
472 |
120 |
84 |
46 |
0 |
| OW |
0 |
22 |
176 |
221 |
122 |
52 |
21 |
0 |
| VODI |
0 |
5 |
86 |
265 |
251 |
169 |
99 |
0 |
| ODI |
0 |
3 |
32 |
148 |
134 |
271 |
263 |
1 |
| CDI |
0 |
5 |
19 |
116 |
178 |
193 |
618 |
11 |
| VCDI |
0 |
3 |
12 |
72 |
122 |
325 |
8281 |
5428 |
|
...date precedes bulletin
|
Date: 2020-03-05:
| 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 |
13163 |
5804 |
681 |
392 |
176 |
143 |
57 |
0 |
| OW |
0 |
62 |
168 |
167 |
61 |
82 |
34 |
0 |
| VODI |
0 |
13 |
80 |
195 |
248 |
146 |
95 |
0 |
| ODI |
0 |
2 |
22 |
96 |
169 |
115 |
192 |
1 |
| CDI |
0 |
1 |
11 |
58 |
137 |
195 |
625 |
19 |
| VCDI |
0 |
0 |
6 |
58 |
152 |
527 |
7598 |
6408 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13163 |
5799 |
664 |
383 |
179 |
153 |
57 |
0 |
| OW |
0 |
65 |
176 |
163 |
64 |
66 |
32 |
0 |
| VODI |
0 |
15 |
84 |
201 |
267 |
152 |
97 |
0 |
| ODI |
0 |
2 |
25 |
100 |
151 |
118 |
184 |
1 |
| CDI |
0 |
1 |
14 |
53 |
123 |
170 |
533 |
17 |
| VCDI |
0 |
0 |
5 |
66 |
159 |
549 |
7698 |
6410 |
|
Date: 2020-03-09:
| 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 |
13078 |
5973 |
809 |
399 |
111 |
40 |
28 |
0 |
| OW |
0 |
65 |
159 |
236 |
106 |
35 |
34 |
0 |
| VODI |
0 |
17 |
98 |
294 |
191 |
103 |
102 |
0 |
| ODI |
0 |
2 |
29 |
170 |
234 |
123 |
120 |
7 |
| CDI |
0 |
2 |
8 |
78 |
168 |
167 |
272 |
115 |
| VCDI |
0 |
0 |
5 |
47 |
112 |
357 |
7431 |
6834 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13078 |
5922 |
747 |
407 |
119 |
51 |
43 |
0 |
| OW |
0 |
80 |
174 |
215 |
100 |
40 |
26 |
0 |
| VODI |
0 |
39 |
100 |
243 |
179 |
99 |
145 |
0 |
| ODI |
0 |
14 |
46 |
155 |
150 |
115 |
117 |
12 |
| CDI |
0 |
4 |
28 |
82 |
148 |
127 |
315 |
119 |
| VCDI |
0 |
0 |
13 |
122 |
226 |
393 |
7341 |
6825 |
|
Date: 2020-03-11:
| 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 |
13220 |
5770 |
757 |
363 |
163 |
70 |
38 |
0 |
| OW |
0 |
44 |
210 |
204 |
127 |
70 |
23 |
0 |
| VODI |
0 |
19 |
132 |
176 |
165 |
93 |
79 |
0 |
| ODI |
0 |
10 |
50 |
124 |
137 |
97 |
69 |
0 |
| CDI |
0 |
2 |
29 |
52 |
154 |
181 |
397 |
42 |
| VCDI |
0 |
0 |
29 |
64 |
145 |
383 |
7637 |
6834 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13220 |
5666 |
627 |
450 |
305 |
183 |
124 |
0 |
| OW |
0 |
115 |
139 |
80 |
88 |
88 |
67 |
0 |
| VODI |
0 |
45 |
260 |
170 |
137 |
131 |
181 |
0 |
| ODI |
0 |
16 |
102 |
133 |
131 |
117 |
240 |
23 |
| CDI |
0 |
3 |
48 |
97 |
108 |
132 |
431 |
58 |
| VCDI |
0 |
0 |
31 |
53 |
122 |
243 |
7200 |
6795 |
|
Date: 2020-03-13:
| 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 |
12749 |
5713 |
848 |
535 |
220 |
79 |
39 |
0 |
| OW |
0 |
82 |
173 |
182 |
199 |
68 |
33 |
0 |
| VODI |
0 |
16 |
124 |
117 |
166 |
188 |
75 |
0 |
| ODI |
0 |
6 |
50 |
69 |
97 |
167 |
118 |
37 |
| CDI |
0 |
6 |
16 |
56 |
133 |
262 |
398 |
124 |
| VCDI |
0 |
10 |
68 |
95 |
174 |
629 |
8268 |
5770 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12749 |
5628 |
753 |
564 |
422 |
289 |
132 |
0 |
| OW |
0 |
142 |
136 |
70 |
83 |
149 |
116 |
0 |
| VODI |
0 |
57 |
240 |
171 |
125 |
206 |
196 |
0 |
| ODI |
0 |
6 |
85 |
117 |
116 |
191 |
254 |
28 |
| CDI |
0 |
0 |
38 |
66 |
102 |
163 |
451 |
125 |
| VCDI |
0 |
0 |
27 |
66 |
141 |
395 |
7782 |
5778 |
|
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