Validation of sea ice concentration
Bulletin date: 2016-04-21
Model vs. observations, sea ice class contingency tables
Date: 2016-04-15:
| 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 |
13691 |
6628 |
1040 |
554 |
125 |
25 |
6 |
0 |
| OW |
0 |
41 |
199 |
187 |
111 |
38 |
7 |
0 |
| VODI |
0 |
28 |
119 |
164 |
178 |
114 |
33 |
0 |
| ODI |
0 |
17 |
45 |
99 |
141 |
203 |
199 |
0 |
| CDI |
0 |
1 |
24 |
115 |
153 |
314 |
482 |
5 |
| VCDI |
0 |
0 |
9 |
160 |
223 |
808 |
7614 |
4259 |
|
...date precedes bulletin
|
Date: 2016-04-19:
| 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 |
14096 |
6874 |
1186 |
447 |
132 |
25 |
1 |
0 |
| OW |
0 |
66 |
104 |
172 |
125 |
46 |
3 |
0 |
| VODI |
0 |
14 |
47 |
146 |
142 |
117 |
23 |
0 |
| ODI |
0 |
2 |
17 |
108 |
137 |
259 |
124 |
3 |
| CDI |
0 |
2 |
10 |
73 |
135 |
314 |
439 |
8 |
| VCDI |
0 |
129 |
12 |
69 |
179 |
998 |
8276 |
3099 |
|
...date precedes bulletin
|
Date: 2016-04-21:
| 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 |
14099 |
7003 |
880 |
437 |
177 |
24 |
2 |
0 |
| OW |
0 |
122 |
142 |
121 |
128 |
49 |
0 |
0 |
| VODI |
0 |
9 |
76 |
116 |
185 |
128 |
24 |
0 |
| ODI |
0 |
2 |
38 |
72 |
172 |
191 |
168 |
0 |
| CDI |
0 |
2 |
37 |
95 |
231 |
210 |
637 |
3 |
| VCDI |
0 |
5 |
16 |
139 |
319 |
668 |
7706 |
3726 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14099 |
7034 |
909 |
458 |
198 |
32 |
2 |
0 |
| OW |
0 |
81 |
112 |
110 |
113 |
39 |
0 |
0 |
| VODI |
0 |
19 |
76 |
111 |
194 |
160 |
22 |
0 |
| ODI |
0 |
2 |
41 |
66 |
172 |
169 |
167 |
1 |
| CDI |
0 |
2 |
39 |
94 |
231 |
214 |
611 |
2 |
| VCDI |
0 |
5 |
12 |
141 |
304 |
656 |
7735 |
3726 |
|
Date: 2016-04-25:
| 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 |
13705 |
6851 |
1751 |
600 |
139 |
15 |
0 |
0 |
| OW |
0 |
9 |
76 |
169 |
145 |
43 |
8 |
0 |
| VODI |
0 |
2 |
33 |
220 |
234 |
100 |
44 |
0 |
| ODI |
0 |
3 |
11 |
117 |
207 |
238 |
201 |
0 |
| CDI |
0 |
4 |
2 |
80 |
223 |
809 |
833 |
4 |
| VCDI |
0 |
9 |
9 |
68 |
183 |
808 |
5956 |
4250 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13705 |
6788 |
1567 |
505 |
149 |
42 |
4 |
0 |
| OW |
0 |
56 |
137 |
168 |
103 |
36 |
12 |
0 |
| VODI |
0 |
18 |
87 |
189 |
190 |
88 |
51 |
0 |
| ODI |
0 |
3 |
39 |
144 |
169 |
141 |
157 |
0 |
| CDI |
0 |
6 |
36 |
129 |
236 |
591 |
572 |
6 |
| VCDI |
0 |
7 |
16 |
119 |
284 |
1115 |
6246 |
4248 |
|
Date: 2016-04-27:
| 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 |
14290 |
6808 |
1438 |
448 |
176 |
52 |
1 |
0 |
| OW |
0 |
26 |
84 |
133 |
112 |
65 |
6 |
0 |
| VODI |
0 |
8 |
69 |
132 |
160 |
96 |
41 |
0 |
| ODI |
0 |
2 |
38 |
107 |
206 |
194 |
279 |
0 |
| CDI |
0 |
1 |
21 |
82 |
172 |
590 |
1069 |
5 |
| VCDI |
0 |
0 |
12 |
29 |
141 |
674 |
6344 |
4048 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14290 |
6739 |
1321 |
370 |
167 |
60 |
3 |
0 |
| OW |
0 |
47 |
126 |
138 |
86 |
69 |
12 |
0 |
| VODI |
0 |
27 |
72 |
135 |
136 |
109 |
98 |
0 |
| ODI |
0 |
20 |
52 |
115 |
195 |
153 |
135 |
0 |
| CDI |
0 |
12 |
49 |
109 |
212 |
550 |
796 |
6 |
| VCDI |
0 |
0 |
42 |
64 |
171 |
730 |
6696 |
4047 |
|
Date: 2016-04-29:
| 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 |
14770 |
7007 |
895 |
366 |
117 |
47 |
3 |
0 |
| OW |
0 |
40 |
89 |
158 |
94 |
45 |
7 |
0 |
| VODI |
0 |
36 |
63 |
147 |
151 |
74 |
59 |
0 |
| ODI |
0 |
10 |
35 |
107 |
189 |
145 |
317 |
3 |
| CDI |
0 |
5 |
30 |
107 |
290 |
462 |
1071 |
7 |
| VCDI |
0 |
0 |
9 |
31 |
167 |
612 |
6526 |
3868 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14770 |
6987 |
800 |
335 |
140 |
74 |
2 |
0 |
| OW |
0 |
46 |
117 |
103 |
85 |
58 |
16 |
0 |
| VODI |
0 |
34 |
85 |
145 |
133 |
95 |
105 |
0 |
| ODI |
0 |
25 |
58 |
146 |
199 |
161 |
160 |
3 |
| CDI |
0 |
6 |
40 |
138 |
233 |
327 |
849 |
6 |
| VCDI |
0 |
0 |
21 |
49 |
218 |
670 |
6851 |
3869 |
|
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