Validation of sea ice concentration
Bulletin date: 2017-12-21
Model vs. observations, sea ice class contingency tables
Date: 2017-12-15:
| 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 |
15851 |
7240 |
885 |
332 |
154 |
126 |
153 |
0 |
| OW |
0 |
39 |
205 |
151 |
121 |
108 |
30 |
0 |
| VODI |
0 |
34 |
89 |
173 |
150 |
155 |
89 |
0 |
| ODI |
0 |
13 |
34 |
44 |
99 |
129 |
163 |
3 |
| CDI |
0 |
12 |
23 |
31 |
79 |
147 |
406 |
10 |
| VCDI |
0 |
5 |
57 |
56 |
118 |
428 |
7744 |
2473 |
|
...date precedes bulletin
|
Date: 2017-12-19:
| 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 |
15536 |
7419 |
1019 |
352 |
140 |
117 |
69 |
0 |
| OW |
0 |
25 |
151 |
140 |
83 |
81 |
34 |
0 |
| VODI |
0 |
19 |
177 |
198 |
225 |
173 |
73 |
0 |
| ODI |
0 |
4 |
29 |
90 |
116 |
161 |
156 |
0 |
| CDI |
0 |
8 |
7 |
29 |
57 |
199 |
413 |
13 |
| VCDI |
0 |
1 |
7 |
21 |
62 |
345 |
6630 |
3780 |
|
...date precedes bulletin
|
Date: 2017-12-21:
| 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 |
15373 |
7754 |
914 |
299 |
104 |
100 |
110 |
0 |
| OW |
0 |
100 |
193 |
150 |
77 |
47 |
44 |
0 |
| VODI |
0 |
41 |
181 |
208 |
208 |
204 |
55 |
0 |
| ODI |
0 |
18 |
75 |
114 |
130 |
174 |
113 |
4 |
| CDI |
0 |
1 |
40 |
96 |
115 |
183 |
369 |
56 |
| VCDI |
0 |
0 |
24 |
86 |
204 |
813 |
5934 |
3448 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15373 |
7786 |
933 |
328 |
124 |
106 |
127 |
0 |
| OW |
0 |
73 |
173 |
140 |
94 |
57 |
30 |
0 |
| VODI |
0 |
36 |
179 |
178 |
167 |
191 |
56 |
0 |
| ODI |
0 |
18 |
72 |
118 |
129 |
168 |
130 |
2 |
| CDI |
0 |
1 |
46 |
99 |
108 |
179 |
326 |
52 |
| VCDI |
0 |
0 |
24 |
90 |
216 |
820 |
5956 |
3454 |
|
Date: 2017-12-25:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2017-12-27:
| 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 |
15075 |
7279 |
1217 |
360 |
73 |
64 |
46 |
0 |
| OW |
0 |
65 |
181 |
229 |
77 |
43 |
30 |
0 |
| VODI |
0 |
35 |
100 |
193 |
113 |
141 |
55 |
0 |
| ODI |
0 |
14 |
50 |
158 |
208 |
195 |
66 |
0 |
| CDI |
0 |
18 |
22 |
64 |
223 |
380 |
317 |
33 |
| VCDI |
0 |
9 |
38 |
72 |
118 |
831 |
6227 |
3740 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15075 |
7211 |
1148 |
346 |
69 |
87 |
55 |
0 |
| OW |
0 |
86 |
181 |
176 |
67 |
45 |
46 |
0 |
| VODI |
0 |
33 |
117 |
158 |
87 |
99 |
51 |
0 |
| ODI |
0 |
24 |
52 |
140 |
144 |
153 |
52 |
0 |
| CDI |
0 |
24 |
48 |
128 |
188 |
258 |
205 |
21 |
| VCDI |
0 |
42 |
62 |
128 |
257 |
1012 |
6332 |
3752 |
|
Date: 2017-12-29:
| 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 |
14797 |
7320 |
1097 |
338 |
93 |
46 |
29 |
0 |
| OW |
0 |
44 |
158 |
228 |
103 |
55 |
39 |
0 |
| VODI |
0 |
20 |
78 |
229 |
178 |
127 |
53 |
0 |
| ODI |
0 |
14 |
26 |
134 |
144 |
199 |
121 |
14 |
| CDI |
0 |
11 |
18 |
106 |
194 |
430 |
314 |
65 |
| VCDI |
0 |
6 |
16 |
67 |
155 |
629 |
6194 |
4270 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14797 |
7235 |
1019 |
383 |
157 |
88 |
50 |
0 |
| OW |
0 |
76 |
138 |
171 |
106 |
69 |
57 |
0 |
| VODI |
0 |
43 |
108 |
127 |
106 |
127 |
77 |
0 |
| ODI |
0 |
18 |
58 |
115 |
94 |
134 |
79 |
0 |
| CDI |
0 |
16 |
39 |
116 |
128 |
203 |
179 |
27 |
| VCDI |
0 |
27 |
31 |
190 |
276 |
865 |
6308 |
4322 |
|
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