Validation of sea ice concentration
Bulletin date: 2015-04-30
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2015-04-28:
| 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 |
13716 |
6704 |
772 |
311 |
61 |
13 |
0 |
0 |
| OW |
5 |
43 |
138 |
167 |
58 |
4 |
0 |
0 |
| VODI |
9 |
5 |
102 |
176 |
111 |
41 |
6 |
0 |
| ODI |
1 |
2 |
58 |
143 |
188 |
157 |
112 |
0 |
| CDI |
1 |
0 |
16 |
150 |
277 |
496 |
684 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
148 |
960 |
8006 |
3205 |
|
...date precedes bulletin
|
Date: 2015-04-30:
| 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 |
13549 |
6578 |
752 |
427 |
161 |
42 |
5 |
0 |
| OW |
0 |
28 |
88 |
160 |
108 |
36 |
9 |
0 |
| VODI |
9 |
23 |
37 |
145 |
89 |
86 |
47 |
0 |
| ODI |
0 |
7 |
33 |
78 |
115 |
110 |
187 |
0 |
| CDI |
0 |
0 |
25 |
121 |
183 |
290 |
845 |
0 |
| VCDI |
0 |
0 |
0 |
38 |
248 |
592 |
8695 |
3121 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13549 |
6567 |
757 |
456 |
170 |
41 |
6 |
0 |
| OW |
3 |
33 |
85 |
141 |
102 |
42 |
8 |
0 |
| VODI |
6 |
27 |
36 |
147 |
96 |
81 |
53 |
0 |
| ODI |
0 |
9 |
31 |
75 |
110 |
109 |
213 |
0 |
| CDI |
0 |
0 |
26 |
107 |
171 |
301 |
834 |
0 |
| VCDI |
0 |
0 |
0 |
43 |
255 |
582 |
8674 |
3121 |
|
Date: 2015-05-04:
| 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 |
14032 |
6618 |
614 |
312 |
163 |
16 |
6 |
0 |
| OW |
7 |
62 |
111 |
122 |
89 |
33 |
16 |
0 |
| VODI |
3 |
12 |
52 |
135 |
159 |
80 |
30 |
0 |
| ODI |
2 |
9 |
19 |
82 |
135 |
195 |
113 |
0 |
| CDI |
0 |
3 |
14 |
71 |
144 |
440 |
807 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
40 |
421 |
7714 |
4172 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14038 |
6555 |
555 |
236 |
90 |
22 |
9 |
0 |
| OW |
4 |
61 |
127 |
125 |
106 |
20 |
7 |
0 |
| VODI |
2 |
43 |
70 |
121 |
124 |
65 |
46 |
0 |
| ODI |
0 |
21 |
28 |
99 |
129 |
117 |
152 |
0 |
| CDI |
0 |
24 |
30 |
103 |
192 |
303 |
751 |
3 |
| VCDI |
0 |
0 |
0 |
52 |
89 |
658 |
7721 |
4169 |
|
Date: 2015-05-06:
| 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 |
13717 |
6855 |
742 |
363 |
101 |
28 |
17 |
0 |
| OW |
10 |
17 |
137 |
108 |
61 |
27 |
36 |
0 |
| VODI |
2 |
1 |
71 |
154 |
98 |
50 |
59 |
0 |
| ODI |
0 |
0 |
30 |
87 |
141 |
96 |
109 |
1 |
| CDI |
0 |
0 |
15 |
96 |
250 |
313 |
832 |
5 |
| VCDI |
0 |
0 |
0 |
10 |
109 |
550 |
7448 |
4321 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13726 |
6744 |
614 |
270 |
67 |
26 |
4 |
0 |
| OW |
1 |
76 |
131 |
131 |
35 |
14 |
30 |
0 |
| VODI |
2 |
40 |
123 |
124 |
80 |
49 |
62 |
0 |
| ODI |
0 |
12 |
70 |
98 |
117 |
93 |
191 |
1 |
| CDI |
0 |
1 |
57 |
143 |
231 |
240 |
968 |
4 |
| VCDI |
0 |
0 |
0 |
52 |
230 |
642 |
7246 |
4322 |
|
Date: 2015-05-08:
| 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 |
14016 |
6706 |
769 |
247 |
90 |
6 |
7 |
0 |
| OW |
6 |
15 |
193 |
99 |
66 |
20 |
31 |
0 |
| VODI |
2 |
3 |
123 |
146 |
98 |
45 |
57 |
0 |
| ODI |
0 |
0 |
53 |
104 |
164 |
63 |
88 |
0 |
| CDI |
0 |
0 |
30 |
109 |
212 |
221 |
619 |
8 |
| VCDI |
0 |
0 |
4 |
47 |
131 |
485 |
7662 |
4322 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14022 |
6588 |
574 |
213 |
82 |
10 |
14 |
0 |
| OW |
1 |
78 |
179 |
44 |
32 |
15 |
26 |
0 |
| VODI |
1 |
40 |
157 |
104 |
60 |
28 |
49 |
0 |
| ODI |
0 |
17 |
101 |
127 |
123 |
57 |
157 |
0 |
| CDI |
0 |
1 |
146 |
181 |
231 |
166 |
1044 |
6 |
| VCDI |
0 |
0 |
15 |
83 |
233 |
564 |
7174 |
4324 |
|
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