Validation of sea ice concentration
Bulletin date: 2016-04-14
Model vs. observations, sea ice class contingency tables
Date: 2016-04-08:
| 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 |
14250 |
6554 |
795 |
369 |
164 |
63 |
14 |
0 |
| OW |
0 |
121 |
165 |
244 |
172 |
87 |
24 |
0 |
| VODI |
0 |
117 |
148 |
168 |
161 |
153 |
47 |
0 |
| ODI |
0 |
98 |
64 |
80 |
166 |
198 |
164 |
5 |
| CDI |
0 |
34 |
96 |
73 |
150 |
334 |
718 |
25 |
| VCDI |
0 |
0 |
46 |
67 |
95 |
412 |
7221 |
4297 |
|
...date precedes bulletin
|
Date: 2016-04-12:
| 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 |
13954 |
6592 |
983 |
430 |
150 |
20 |
10 |
0 |
| OW |
0 |
45 |
193 |
206 |
112 |
47 |
7 |
0 |
| VODI |
0 |
47 |
142 |
162 |
180 |
103 |
37 |
0 |
| ODI |
0 |
0 |
59 |
112 |
247 |
224 |
195 |
4 |
| CDI |
0 |
0 |
35 |
94 |
196 |
385 |
639 |
12 |
| VCDI |
0 |
0 |
49 |
75 |
104 |
355 |
6398 |
5556 |
|
...date precedes bulletin
|
Date: 2016-04-14:
| 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 |
13886 |
6536 |
964 |
475 |
117 |
17 |
7 |
0 |
| OW |
0 |
48 |
217 |
219 |
104 |
36 |
7 |
0 |
| VODI |
0 |
33 |
110 |
194 |
157 |
97 |
32 |
0 |
| ODI |
0 |
17 |
61 |
115 |
149 |
231 |
205 |
0 |
| CDI |
0 |
0 |
16 |
138 |
137 |
366 |
546 |
12 |
| VCDI |
0 |
0 |
24 |
149 |
179 |
663 |
7295 |
4600 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13886 |
6549 |
1039 |
508 |
137 |
28 |
7 |
0 |
| OW |
0 |
44 |
155 |
187 |
86 |
24 |
6 |
0 |
| VODI |
0 |
26 |
103 |
180 |
132 |
91 |
28 |
0 |
| ODI |
0 |
15 |
56 |
131 |
167 |
239 |
187 |
0 |
| CDI |
0 |
0 |
16 |
135 |
136 |
366 |
545 |
16 |
| VCDI |
0 |
0 |
23 |
149 |
185 |
662 |
7319 |
4596 |
|
Date: 2016-04-18:
| 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 |
14237 |
6769 |
1079 |
476 |
111 |
11 |
2 |
0 |
| OW |
0 |
76 |
78 |
208 |
106 |
38 |
11 |
0 |
| VODI |
0 |
116 |
44 |
130 |
131 |
76 |
36 |
0 |
| ODI |
0 |
100 |
7 |
83 |
122 |
160 |
130 |
0 |
| CDI |
0 |
14 |
3 |
45 |
144 |
356 |
496 |
6 |
| VCDI |
0 |
8 |
5 |
26 |
146 |
1278 |
7034 |
4261 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14237 |
6510 |
852 |
367 |
109 |
17 |
0 |
0 |
| OW |
0 |
188 |
124 |
132 |
52 |
26 |
11 |
0 |
| VODI |
0 |
144 |
113 |
126 |
92 |
63 |
46 |
0 |
| ODI |
0 |
137 |
55 |
119 |
91 |
121 |
115 |
1 |
| CDI |
0 |
96 |
54 |
115 |
142 |
272 |
506 |
6 |
| VCDI |
0 |
8 |
18 |
109 |
274 |
1420 |
7031 |
4260 |
|
Date: 2016-04-20:
| 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 |
14081 |
6816 |
1126 |
512 |
107 |
13 |
3 |
0 |
| OW |
0 |
64 |
141 |
240 |
95 |
38 |
3 |
0 |
| VODI |
0 |
4 |
37 |
158 |
187 |
120 |
29 |
0 |
| ODI |
0 |
2 |
20 |
118 |
167 |
209 |
152 |
1 |
| CDI |
0 |
2 |
8 |
117 |
196 |
280 |
463 |
4 |
| VCDI |
0 |
129 |
16 |
107 |
246 |
932 |
8934 |
2282 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14081 |
6592 |
902 |
443 |
115 |
14 |
2 |
0 |
| OW |
0 |
174 |
127 |
154 |
54 |
46 |
9 |
0 |
| VODI |
0 |
94 |
97 |
147 |
124 |
142 |
32 |
0 |
| ODI |
0 |
26 |
63 |
124 |
149 |
146 |
180 |
2 |
| CDI |
0 |
2 |
76 |
115 |
170 |
253 |
465 |
4 |
| VCDI |
0 |
129 |
83 |
269 |
386 |
991 |
8896 |
2281 |
|
Date: 2016-04-22:
| 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 |
14181 |
6937 |
955 |
361 |
148 |
24 |
2 |
0 |
| OW |
0 |
123 |
113 |
141 |
130 |
75 |
0 |
0 |
| VODI |
0 |
15 |
58 |
127 |
203 |
119 |
36 |
0 |
| ODI |
0 |
4 |
39 |
74 |
150 |
128 |
210 |
0 |
| CDI |
0 |
3 |
44 |
79 |
196 |
240 |
682 |
3 |
| VCDI |
0 |
5 |
29 |
152 |
224 |
705 |
7542 |
3902 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14181 |
6770 |
836 |
303 |
135 |
35 |
2 |
0 |
| OW |
0 |
143 |
117 |
129 |
96 |
71 |
4 |
0 |
| VODI |
0 |
100 |
69 |
123 |
163 |
111 |
113 |
0 |
| ODI |
0 |
43 |
40 |
94 |
152 |
106 |
234 |
1 |
| CDI |
0 |
25 |
66 |
107 |
182 |
176 |
656 |
4 |
| VCDI |
0 |
6 |
110 |
178 |
323 |
792 |
7463 |
3900 |
|
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