Validation of sea ice concentration
Bulletin date: 2017-04-27
Model vs. observations, sea ice class contingency tables
Date: 2017-04-21:
| 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 |
13013 |
5957 |
1290 |
375 |
177 |
47 |
21 |
0 |
| OW |
0 |
7 |
154 |
162 |
116 |
71 |
20 |
0 |
| VODI |
0 |
0 |
87 |
151 |
150 |
100 |
57 |
0 |
| ODI |
0 |
0 |
45 |
107 |
129 |
129 |
198 |
12 |
| CDI |
0 |
0 |
24 |
69 |
105 |
151 |
604 |
65 |
| VCDI |
0 |
0 |
15 |
71 |
89 |
282 |
8474 |
5635 |
|
...date precedes bulletin
|
Date: 2017-04-25:
| 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 |
12921 |
6127 |
993 |
572 |
203 |
50 |
8 |
0 |
| OW |
0 |
23 |
136 |
212 |
83 |
61 |
13 |
0 |
| VODI |
0 |
2 |
57 |
176 |
140 |
107 |
61 |
0 |
| ODI |
0 |
0 |
13 |
72 |
123 |
153 |
162 |
0 |
| CDI |
0 |
0 |
2 |
32 |
109 |
270 |
1045 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
59 |
472 |
8655 |
5031 |
|
...date precedes bulletin
|
Date: 2017-04-27:
| 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 |
13011 |
6000 |
1153 |
514 |
187 |
41 |
10 |
0 |
| OW |
0 |
18 |
145 |
184 |
103 |
49 |
31 |
0 |
| VODI |
0 |
3 |
72 |
124 |
134 |
122 |
72 |
0 |
| ODI |
0 |
0 |
16 |
69 |
98 |
151 |
209 |
0 |
| CDI |
0 |
0 |
3 |
51 |
121 |
273 |
899 |
10 |
| VCDI |
0 |
0 |
0 |
21 |
67 |
537 |
8765 |
4896 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13011 |
6007 |
1170 |
561 |
220 |
48 |
15 |
0 |
| OW |
0 |
11 |
125 |
156 |
86 |
50 |
32 |
0 |
| VODI |
0 |
3 |
78 |
107 |
120 |
121 |
72 |
0 |
| ODI |
0 |
0 |
13 |
71 |
100 |
154 |
202 |
0 |
| CDI |
0 |
0 |
3 |
49 |
116 |
274 |
896 |
7 |
| VCDI |
0 |
0 |
0 |
19 |
68 |
526 |
8769 |
4899 |
|
Date: 2017-05-01:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2017-05-03:
| 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 |
13708 |
5886 |
1195 |
452 |
147 |
43 |
20 |
0 |
| OW |
0 |
3 |
155 |
118 |
79 |
54 |
27 |
0 |
| VODI |
0 |
0 |
89 |
106 |
116 |
90 |
108 |
0 |
| ODI |
0 |
0 |
29 |
56 |
133 |
129 |
245 |
0 |
| CDI |
0 |
0 |
19 |
41 |
182 |
275 |
1159 |
2 |
| VCDI |
0 |
0 |
1 |
26 |
105 |
324 |
8733 |
4304 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13708 |
5876 |
1094 |
397 |
134 |
39 |
7 |
0 |
| OW |
0 |
12 |
179 |
95 |
55 |
39 |
22 |
0 |
| VODI |
0 |
1 |
133 |
147 |
122 |
105 |
107 |
0 |
| ODI |
0 |
0 |
54 |
80 |
133 |
116 |
217 |
0 |
| CDI |
0 |
0 |
23 |
44 |
187 |
254 |
882 |
0 |
| VCDI |
0 |
0 |
5 |
36 |
131 |
362 |
9057 |
4306 |
|
Date: 2017-05-05:
| 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 |
13697 |
5985 |
1101 |
425 |
96 |
23 |
10 |
0 |
| OW |
0 |
7 |
121 |
164 |
83 |
55 |
52 |
0 |
| VODI |
0 |
1 |
50 |
144 |
131 |
93 |
158 |
0 |
| ODI |
0 |
0 |
23 |
91 |
182 |
130 |
252 |
0 |
| CDI |
0 |
0 |
14 |
52 |
213 |
394 |
1028 |
1 |
| VCDI |
0 |
0 |
19 |
34 |
146 |
496 |
8392 |
4296 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13697 |
5945 |
995 |
395 |
95 |
17 |
19 |
0 |
| OW |
0 |
42 |
143 |
122 |
68 |
37 |
37 |
0 |
| VODI |
0 |
6 |
124 |
178 |
111 |
98 |
133 |
0 |
| ODI |
0 |
0 |
30 |
97 |
158 |
138 |
291 |
0 |
| CDI |
0 |
0 |
8 |
71 |
242 |
333 |
837 |
18 |
| VCDI |
0 |
0 |
28 |
47 |
177 |
568 |
8575 |
4279 |
|
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