Validation of sea ice concentration
Bulletin date: 2013-04-18
Model vs. observations, sea ice class contingency tables
Date: 2013-04-12:
| 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 |
12671 |
5618 |
357 |
277 |
148 |
52 |
28 |
0 |
| OW |
0 |
113 |
77 |
94 |
102 |
56 |
48 |
0 |
| VODI |
0 |
63 |
59 |
96 |
141 |
115 |
108 |
0 |
| ODI |
0 |
25 |
32 |
60 |
128 |
133 |
187 |
0 |
| CDI |
0 |
6 |
22 |
54 |
113 |
229 |
728 |
7 |
| VCDI |
0 |
0 |
1 |
27 |
83 |
510 |
9146 |
5705 |
|
...date precedes bulletin
|
Date: 2013-04-16:
| 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 |
12774 |
5747 |
406 |
290 |
129 |
123 |
19 |
0 |
| OW |
0 |
102 |
114 |
103 |
116 |
72 |
46 |
0 |
| VODI |
0 |
4 |
50 |
128 |
148 |
158 |
148 |
0 |
| ODI |
0 |
0 |
6 |
63 |
95 |
163 |
351 |
1 |
| CDI |
0 |
0 |
0 |
18 |
95 |
233 |
1029 |
17 |
| VCDI |
0 |
0 |
1 |
13 |
58 |
348 |
8831 |
5420 |
|
...date precedes bulletin
|
Date: 2013-04-18:
| 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 |
12919 |
5751 |
400 |
272 |
95 |
24 |
9 |
0 |
| OW |
0 |
147 |
122 |
158 |
93 |
39 |
25 |
0 |
| VODI |
0 |
61 |
71 |
167 |
145 |
125 |
146 |
0 |
| ODI |
0 |
20 |
37 |
68 |
134 |
155 |
253 |
0 |
| CDI |
0 |
0 |
18 |
80 |
178 |
252 |
581 |
5 |
| VCDI |
0 |
0 |
1 |
56 |
274 |
891 |
8982 |
4665 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12919 |
5873 |
512 |
429 |
192 |
67 |
35 |
0 |
| OW |
0 |
54 |
43 |
86 |
71 |
46 |
44 |
0 |
| VODI |
0 |
33 |
42 |
88 |
89 |
89 |
134 |
0 |
| ODI |
0 |
15 |
27 |
47 |
79 |
97 |
190 |
0 |
| CDI |
0 |
4 |
23 |
69 |
166 |
243 |
508 |
3 |
| VCDI |
0 |
0 |
2 |
82 |
322 |
944 |
9085 |
4667 |
|
Date: 2013-04-22:
| 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 |
13048 |
5766 |
496 |
323 |
153 |
48 |
2 |
0 |
| OW |
0 |
19 |
122 |
167 |
166 |
93 |
23 |
0 |
| VODI |
0 |
0 |
44 |
128 |
217 |
206 |
199 |
0 |
| ODI |
0 |
0 |
7 |
48 |
163 |
246 |
407 |
0 |
| CDI |
0 |
0 |
0 |
15 |
99 |
394 |
1150 |
6 |
| VCDI |
0 |
0 |
0 |
19 |
65 |
386 |
8170 |
5024 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13048 |
5716 |
525 |
381 |
274 |
115 |
80 |
0 |
| OW |
0 |
33 |
59 |
86 |
75 |
61 |
67 |
0 |
| VODI |
0 |
27 |
47 |
76 |
125 |
134 |
194 |
0 |
| ODI |
0 |
7 |
24 |
43 |
107 |
137 |
310 |
1 |
| CDI |
0 |
2 |
12 |
56 |
124 |
306 |
807 |
10 |
| VCDI |
0 |
0 |
2 |
58 |
158 |
620 |
8493 |
5019 |
|
Date: 2013-04-24:
| 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 |
13573 |
5763 |
418 |
243 |
98 |
31 |
2 |
0 |
| OW |
0 |
65 |
199 |
160 |
134 |
64 |
17 |
0 |
| VODI |
0 |
4 |
90 |
189 |
207 |
225 |
105 |
0 |
| ODI |
0 |
0 |
23 |
147 |
229 |
261 |
250 |
0 |
| CDI |
0 |
0 |
10 |
79 |
202 |
553 |
747 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
125 |
605 |
8160 |
4431 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13573 |
5734 |
506 |
358 |
215 |
109 |
64 |
0 |
| OW |
0 |
40 |
65 |
100 |
87 |
47 |
41 |
0 |
| VODI |
0 |
27 |
57 |
152 |
133 |
128 |
97 |
0 |
| ODI |
0 |
17 |
28 |
89 |
165 |
184 |
208 |
0 |
| CDI |
0 |
10 |
24 |
62 |
158 |
504 |
607 |
0 |
| VCDI |
0 |
4 |
60 |
67 |
237 |
767 |
8264 |
4431 |
|
Date: 2013-04-26:
| 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 |
13358 |
5576 |
628 |
384 |
87 |
28 |
6 |
0 |
| OW |
0 |
159 |
208 |
238 |
135 |
35 |
14 |
0 |
| VODI |
0 |
43 |
148 |
255 |
239 |
140 |
109 |
0 |
| ODI |
0 |
13 |
73 |
232 |
255 |
202 |
203 |
0 |
| CDI |
0 |
8 |
53 |
172 |
353 |
401 |
821 |
0 |
| VCDI |
0 |
0 |
11 |
107 |
472 |
711 |
7520 |
4022 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13358 |
5675 |
789 |
612 |
233 |
97 |
35 |
0 |
| OW |
0 |
37 |
66 |
80 |
86 |
52 |
46 |
0 |
| VODI |
0 |
40 |
67 |
161 |
152 |
89 |
149 |
0 |
| ODI |
0 |
12 |
48 |
110 |
148 |
114 |
179 |
0 |
| CDI |
0 |
33 |
86 |
172 |
278 |
340 |
647 |
0 |
| VCDI |
0 |
2 |
65 |
253 |
644 |
825 |
7617 |
4022 |
|
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