Validation of sea ice concentration
Bulletin date: 2018-05-24
Model vs. observations, sea ice class contingency tables
Date: 2018-05-18:
| 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 |
15158 |
6635 |
1006 |
749 |
246 |
76 |
54 |
0 |
| OW |
0 |
45 |
86 |
217 |
282 |
100 |
48 |
1 |
| VODI |
0 |
7 |
55 |
150 |
429 |
280 |
147 |
8 |
| ODI |
0 |
3 |
26 |
50 |
154 |
226 |
342 |
19 |
| CDI |
0 |
0 |
16 |
75 |
135 |
223 |
862 |
59 |
| VCDI |
0 |
0 |
0 |
12 |
19 |
101 |
5191 |
4867 |
|
...date precedes bulletin
|
Date: 2018-05-22:
| 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 |
15643 |
6421 |
1289 |
669 |
258 |
81 |
67 |
0 |
| OW |
0 |
18 |
138 |
198 |
299 |
83 |
41 |
1 |
| VODI |
0 |
4 |
46 |
126 |
286 |
195 |
120 |
16 |
| ODI |
0 |
0 |
20 |
65 |
142 |
229 |
281 |
7 |
| CDI |
0 |
0 |
4 |
66 |
108 |
335 |
991 |
35 |
| VCDI |
0 |
0 |
0 |
18 |
30 |
169 |
5691 |
3969 |
|
...date precedes bulletin
|
Date: 2018-05-24:
| 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 |
15928 |
6470 |
967 |
583 |
467 |
214 |
60 |
0 |
| OW |
0 |
1 |
76 |
113 |
298 |
191 |
47 |
0 |
| VODI |
0 |
3 |
37 |
56 |
151 |
294 |
241 |
22 |
| ODI |
0 |
0 |
22 |
40 |
73 |
177 |
362 |
4 |
| CDI |
0 |
0 |
3 |
48 |
59 |
210 |
1157 |
25 |
| VCDI |
0 |
0 |
0 |
16 |
25 |
113 |
5375 |
4231 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15928 |
6469 |
967 |
600 |
574 |
262 |
65 |
0 |
| OW |
0 |
3 |
83 |
104 |
200 |
179 |
59 |
5 |
| VODI |
0 |
2 |
27 |
52 |
129 |
265 |
214 |
19 |
| ODI |
0 |
0 |
24 |
34 |
83 |
172 |
376 |
1 |
| CDI |
0 |
0 |
4 |
50 |
61 |
199 |
1143 |
30 |
| VCDI |
0 |
0 |
0 |
16 |
26 |
122 |
5385 |
4227 |
|
Date: 2018-05-28:
| 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 |
15947 |
6235 |
1197 |
858 |
382 |
170 |
103 |
0 |
| OW |
0 |
12 |
65 |
136 |
242 |
133 |
37 |
3 |
| VODI |
0 |
8 |
43 |
89 |
196 |
263 |
94 |
18 |
| ODI |
0 |
0 |
13 |
58 |
121 |
334 |
206 |
35 |
| CDI |
0 |
0 |
2 |
22 |
34 |
342 |
1215 |
128 |
| VCDI |
0 |
0 |
1 |
10 |
5 |
185 |
3524 |
5693 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15947 |
6238 |
1216 |
913 |
547 |
317 |
130 |
21 |
| OW |
0 |
12 |
31 |
87 |
188 |
217 |
80 |
1 |
| VODI |
0 |
5 |
28 |
57 |
129 |
263 |
187 |
3 |
| ODI |
0 |
0 |
32 |
40 |
53 |
209 |
271 |
36 |
| CDI |
0 |
0 |
13 |
63 |
48 |
232 |
1118 |
100 |
| VCDI |
0 |
0 |
1 |
13 |
15 |
189 |
3393 |
5716 |
|
Date: 2018-05-30:
| 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 |
16067 |
6115 |
1117 |
984 |
532 |
164 |
87 |
0 |
| OW |
0 |
9 |
47 |
128 |
254 |
141 |
68 |
11 |
| VODI |
0 |
1 |
28 |
90 |
194 |
206 |
192 |
13 |
| ODI |
0 |
0 |
4 |
45 |
123 |
236 |
383 |
1 |
| CDI |
0 |
0 |
0 |
23 |
66 |
233 |
1415 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
38 |
178 |
4978 |
3974 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16067 |
6120 |
1107 |
993 |
697 |
323 |
211 |
22 |
| OW |
0 |
5 |
33 |
98 |
170 |
168 |
122 |
0 |
| VODI |
0 |
0 |
33 |
70 |
101 |
156 |
266 |
2 |
| ODI |
0 |
0 |
17 |
46 |
86 |
127 |
332 |
1 |
| CDI |
0 |
0 |
6 |
63 |
102 |
232 |
1502 |
4 |
| VCDI |
0 |
0 |
0 |
14 |
51 |
152 |
4690 |
3970 |
|
Date: 2018-06-01:
| 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 |
15598 |
6517 |
1248 |
1418 |
348 |
52 |
34 |
0 |
| OW |
0 |
9 |
59 |
211 |
244 |
83 |
69 |
11 |
| VODI |
0 |
0 |
18 |
135 |
260 |
202 |
168 |
13 |
| ODI |
0 |
0 |
5 |
50 |
114 |
212 |
382 |
1 |
| CDI |
0 |
0 |
0 |
27 |
57 |
203 |
1324 |
1 |
| VCDI |
0 |
0 |
0 |
13 |
45 |
145 |
4899 |
3984 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15598 |
6498 |
1226 |
1445 |
610 |
214 |
148 |
22 |
| OW |
0 |
20 |
46 |
120 |
128 |
143 |
92 |
0 |
| VODI |
0 |
5 |
32 |
112 |
107 |
109 |
230 |
2 |
| ODI |
0 |
3 |
20 |
77 |
68 |
99 |
299 |
1 |
| CDI |
0 |
0 |
6 |
84 |
103 |
205 |
1635 |
4 |
| VCDI |
0 |
0 |
0 |
16 |
52 |
127 |
4472 |
3981 |
|
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