Validation of sea ice concentration
Bulletin date: 2015-04-16
Model vs. observations, sea ice class contingency tables
Date: 2015-04-10:
| 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 |
13520 |
6321 |
920 |
276 |
84 |
33 |
6 |
0 |
| OW |
0 |
160 |
340 |
174 |
104 |
77 |
4 |
0 |
| VODI |
0 |
85 |
175 |
138 |
121 |
86 |
28 |
1 |
| ODI |
0 |
57 |
90 |
111 |
110 |
109 |
96 |
1 |
| CDI |
0 |
37 |
118 |
105 |
177 |
176 |
482 |
5 |
| VCDI |
0 |
0 |
76 |
162 |
206 |
309 |
7828 |
4159 |
|
...date precedes bulletin
|
Date: 2015-04-14:
| 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 |
14190 |
6731 |
315 |
228 |
113 |
33 |
15 |
0 |
| OW |
0 |
250 |
153 |
212 |
98 |
32 |
20 |
0 |
| VODI |
0 |
76 |
135 |
186 |
110 |
39 |
38 |
0 |
| ODI |
3 |
27 |
92 |
149 |
111 |
67 |
83 |
0 |
| CDI |
6 |
8 |
121 |
227 |
224 |
258 |
635 |
5 |
| VCDI |
0 |
1 |
73 |
74 |
136 |
999 |
8872 |
1922 |
|
...date precedes bulletin
|
Date: 2015-04-16:
| 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 |
13707 |
6709 |
708 |
293 |
129 |
48 |
0 |
0 |
| OW |
0 |
284 |
254 |
129 |
101 |
45 |
2 |
0 |
| VODI |
0 |
51 |
144 |
176 |
92 |
60 |
44 |
0 |
| ODI |
0 |
22 |
94 |
191 |
122 |
85 |
152 |
0 |
| CDI |
0 |
5 |
114 |
248 |
271 |
254 |
842 |
0 |
| VCDI |
0 |
0 |
6 |
122 |
150 |
368 |
7263 |
3782 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13707 |
6724 |
736 |
267 |
121 |
42 |
0 |
0 |
| OW |
0 |
251 |
231 |
174 |
111 |
53 |
2 |
0 |
| VODI |
0 |
72 |
152 |
141 |
80 |
54 |
47 |
0 |
| ODI |
0 |
22 |
86 |
202 |
118 |
83 |
144 |
0 |
| CDI |
0 |
2 |
111 |
252 |
282 |
262 |
816 |
0 |
| VCDI |
0 |
0 |
4 |
123 |
153 |
366 |
7294 |
3782 |
|
Date: 2015-04-20:
| 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 |
13471 |
6353 |
1088 |
373 |
124 |
32 |
1 |
0 |
| OW |
0 |
397 |
234 |
169 |
77 |
16 |
3 |
0 |
| VODI |
0 |
130 |
143 |
144 |
127 |
69 |
26 |
0 |
| ODI |
0 |
7 |
86 |
204 |
210 |
252 |
183 |
0 |
| CDI |
0 |
1 |
38 |
271 |
284 |
364 |
1081 |
7 |
| VCDI |
0 |
0 |
6 |
136 |
206 |
723 |
6052 |
3979 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13471 |
6423 |
945 |
249 |
90 |
31 |
2 |
0 |
| OW |
0 |
239 |
221 |
192 |
90 |
33 |
10 |
0 |
| VODI |
0 |
152 |
222 |
181 |
133 |
74 |
56 |
0 |
| ODI |
0 |
38 |
74 |
128 |
120 |
184 |
183 |
0 |
| CDI |
0 |
24 |
91 |
307 |
342 |
388 |
680 |
3 |
| VCDI |
0 |
12 |
42 |
240 |
253 |
746 |
6415 |
3983 |
|
Date: 2015-04-22:
| 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 |
13280 |
6434 |
1070 |
445 |
116 |
41 |
4 |
0 |
| OW |
0 |
144 |
202 |
172 |
46 |
20 |
10 |
0 |
| VODI |
0 |
146 |
158 |
267 |
124 |
45 |
45 |
0 |
| ODI |
0 |
9 |
27 |
215 |
229 |
173 |
147 |
0 |
| CDI |
0 |
1 |
25 |
213 |
296 |
272 |
461 |
1 |
| VCDI |
0 |
0 |
5 |
198 |
315 |
756 |
7340 |
3615 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13280 |
6345 |
892 |
372 |
82 |
31 |
2 |
0 |
| OW |
0 |
247 |
225 |
186 |
67 |
29 |
6 |
0 |
| VODI |
0 |
101 |
237 |
253 |
130 |
59 |
33 |
0 |
| ODI |
0 |
21 |
54 |
156 |
134 |
125 |
121 |
0 |
| CDI |
0 |
17 |
56 |
205 |
329 |
279 |
491 |
1 |
| VCDI |
0 |
3 |
23 |
338 |
384 |
784 |
7354 |
3615 |
|
Date: 2015-04-24:
| 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 |
13034 |
6394 |
1170 |
274 |
93 |
36 |
2 |
0 |
| OW |
0 |
145 |
324 |
112 |
89 |
29 |
15 |
0 |
| VODI |
0 |
99 |
169 |
205 |
121 |
57 |
46 |
0 |
| ODI |
0 |
8 |
92 |
189 |
158 |
140 |
161 |
0 |
| CDI |
0 |
0 |
96 |
138 |
232 |
313 |
318 |
0 |
| VCDI |
0 |
0 |
19 |
283 |
406 |
740 |
7400 |
3960 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13034 |
6377 |
1139 |
314 |
97 |
29 |
3 |
0 |
| OW |
0 |
150 |
282 |
151 |
105 |
27 |
6 |
0 |
| VODI |
0 |
99 |
160 |
185 |
193 |
101 |
18 |
0 |
| ODI |
0 |
13 |
93 |
93 |
108 |
178 |
85 |
0 |
| CDI |
0 |
6 |
144 |
141 |
170 |
328 |
487 |
0 |
| VCDI |
0 |
1 |
52 |
317 |
426 |
652 |
7343 |
3960 |
|
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