Validation of sea ice concentration
Bulletin date: 2017-10-26
Model vs. observations, sea ice class contingency tables
Date: 2017-10-20:
| 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 |
22899 |
6115 |
758 |
243 |
146 |
112 |
21 |
0 |
| OW |
0 |
68 |
132 |
168 |
127 |
144 |
12 |
0 |
| VODI |
0 |
4 |
56 |
163 |
108 |
197 |
38 |
0 |
| ODI |
0 |
0 |
8 |
30 |
45 |
198 |
64 |
0 |
| CDI |
0 |
0 |
2 |
8 |
21 |
185 |
357 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
225 |
2516 |
2984 |
|
...date precedes bulletin
|
Date: 2017-10-24:
| 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 |
21622 |
6777 |
1001 |
370 |
248 |
127 |
9 |
0 |
| OW |
0 |
6 |
54 |
90 |
163 |
168 |
16 |
0 |
| VODI |
0 |
0 |
17 |
52 |
156 |
191 |
80 |
0 |
| ODI |
0 |
0 |
4 |
19 |
58 |
182 |
137 |
0 |
| CDI |
0 |
0 |
0 |
13 |
34 |
198 |
246 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
24 |
237 |
2994 |
2862 |
|
...date precedes bulletin
|
Date: 2017-10-26:
| 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 |
21026 |
6818 |
1047 |
486 |
236 |
143 |
16 |
0 |
| OW |
0 |
12 |
79 |
122 |
153 |
140 |
33 |
0 |
| VODI |
0 |
0 |
21 |
50 |
101 |
249 |
103 |
0 |
| ODI |
0 |
0 |
4 |
18 |
42 |
125 |
176 |
0 |
| CDI |
0 |
0 |
1 |
8 |
30 |
142 |
288 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
31 |
204 |
2661 |
3587 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21026 |
6825 |
1056 |
505 |
289 |
176 |
16 |
0 |
| OW |
0 |
5 |
69 |
101 |
102 |
127 |
32 |
0 |
| VODI |
0 |
0 |
22 |
49 |
101 |
221 |
89 |
0 |
| ODI |
0 |
0 |
4 |
21 |
39 |
126 |
165 |
0 |
| CDI |
0 |
0 |
1 |
9 |
31 |
123 |
264 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
31 |
230 |
2711 |
3587 |
|
Date: 2017-10-30:
| 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 |
21416 |
6364 |
1110 |
472 |
314 |
96 |
7 |
0 |
| OW |
0 |
28 |
112 |
116 |
101 |
63 |
11 |
0 |
| VODI |
0 |
10 |
48 |
89 |
97 |
170 |
51 |
0 |
| ODI |
0 |
0 |
11 |
43 |
52 |
151 |
125 |
0 |
| CDI |
0 |
0 |
3 |
39 |
38 |
155 |
175 |
0 |
| VCDI |
0 |
0 |
1 |
37 |
63 |
572 |
3587 |
2432 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21416 |
6277 |
979 |
414 |
284 |
105 |
9 |
0 |
| OW |
0 |
88 |
101 |
75 |
70 |
88 |
14 |
0 |
| VODI |
0 |
26 |
112 |
105 |
92 |
133 |
62 |
0 |
| ODI |
0 |
10 |
53 |
56 |
60 |
105 |
65 |
0 |
| CDI |
0 |
1 |
24 |
56 |
55 |
124 |
140 |
0 |
| VCDI |
0 |
0 |
16 |
90 |
104 |
652 |
3666 |
2432 |
|
Date: 2017-11-01:
| 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 |
19952 |
7323 |
1384 |
433 |
258 |
179 |
91 |
0 |
| OW |
0 |
5 |
154 |
108 |
105 |
61 |
43 |
0 |
| VODI |
0 |
0 |
65 |
126 |
90 |
111 |
67 |
0 |
| ODI |
0 |
0 |
29 |
50 |
37 |
76 |
127 |
0 |
| CDI |
0 |
0 |
16 |
45 |
33 |
86 |
232 |
0 |
| VCDI |
0 |
0 |
2 |
50 |
53 |
278 |
3605 |
2885 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19952 |
7269 |
1173 |
330 |
230 |
163 |
99 |
0 |
| OW |
0 |
42 |
190 |
100 |
73 |
55 |
41 |
0 |
| VODI |
0 |
17 |
150 |
135 |
106 |
126 |
81 |
0 |
| ODI |
0 |
0 |
64 |
80 |
44 |
58 |
141 |
0 |
| CDI |
0 |
0 |
44 |
62 |
44 |
73 |
219 |
0 |
| VCDI |
0 |
0 |
29 |
105 |
79 |
316 |
3584 |
2885 |
|
Date: 2017-11-03:
| 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 |
19905 |
7139 |
1196 |
452 |
212 |
176 |
148 |
0 |
| OW |
0 |
25 |
143 |
164 |
164 |
98 |
46 |
0 |
| VODI |
0 |
1 |
63 |
157 |
119 |
103 |
79 |
0 |
| ODI |
0 |
0 |
22 |
91 |
56 |
92 |
114 |
0 |
| CDI |
0 |
0 |
6 |
79 |
70 |
63 |
191 |
1 |
| VCDI |
0 |
0 |
2 |
41 |
94 |
230 |
3645 |
2972 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19905 |
6952 |
1007 |
347 |
152 |
170 |
173 |
0 |
| OW |
0 |
189 |
221 |
135 |
87 |
34 |
42 |
0 |
| VODI |
0 |
23 |
127 |
213 |
191 |
98 |
79 |
0 |
| ODI |
0 |
1 |
52 |
119 |
97 |
110 |
91 |
0 |
| CDI |
0 |
0 |
19 |
85 |
88 |
103 |
259 |
1 |
| VCDI |
0 |
0 |
6 |
85 |
100 |
247 |
3579 |
2972 |
|
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