Validation of sea ice concentration
Bulletin date: 2017-10-19
Model vs. observations, sea ice class contingency tables
Date: 2017-10-13:
| 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 |
23980 |
5809 |
487 |
278 |
174 |
44 |
10 |
0 |
| OW |
0 |
20 |
35 |
77 |
119 |
50 |
11 |
0 |
| VODI |
0 |
6 |
13 |
43 |
90 |
99 |
58 |
0 |
| ODI |
0 |
2 |
6 |
8 |
21 |
113 |
136 |
0 |
| CDI |
0 |
0 |
2 |
3 |
9 |
86 |
373 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
145 |
2924 |
2928 |
|
...date precedes bulletin
|
Date: 2017-10-17:
| 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 |
23426 |
6617 |
520 |
268 |
87 |
26 |
12 |
0 |
| OW |
0 |
125 |
117 |
120 |
52 |
20 |
9 |
0 |
| VODI |
0 |
36 |
51 |
129 |
65 |
50 |
28 |
0 |
| ODI |
0 |
5 |
10 |
49 |
57 |
96 |
65 |
0 |
| CDI |
0 |
0 |
0 |
3 |
26 |
193 |
386 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
517 |
3358 |
1622 |
|
...date precedes bulletin
|
Date: 2017-10-19:
| 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 |
23011 |
6184 |
718 |
296 |
206 |
78 |
22 |
0 |
| OW |
0 |
108 |
87 |
77 |
165 |
103 |
15 |
0 |
| VODI |
0 |
41 |
62 |
127 |
108 |
135 |
73 |
0 |
| ODI |
0 |
1 |
6 |
27 |
54 |
118 |
121 |
0 |
| CDI |
0 |
0 |
0 |
8 |
18 |
126 |
416 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
203 |
3068 |
2375 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23010 |
6180 |
735 |
309 |
252 |
90 |
28 |
0 |
| OW |
1 |
89 |
74 |
80 |
128 |
93 |
16 |
0 |
| VODI |
0 |
62 |
57 |
116 |
100 |
137 |
65 |
0 |
| ODI |
0 |
3 |
7 |
24 |
52 |
108 |
131 |
0 |
| CDI |
0 |
0 |
0 |
5 |
19 |
119 |
387 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
216 |
3088 |
2375 |
|
Date: 2017-10-23:
| 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 |
21964 |
6747 |
912 |
423 |
178 |
71 |
8 |
0 |
| OW |
0 |
9 |
84 |
106 |
149 |
169 |
17 |
0 |
| VODI |
0 |
0 |
62 |
142 |
90 |
220 |
49 |
0 |
| ODI |
0 |
0 |
1 |
27 |
34 |
259 |
74 |
0 |
| CDI |
0 |
0 |
0 |
6 |
30 |
216 |
226 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
26 |
296 |
3110 |
2452 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21964 |
6707 |
834 |
370 |
172 |
80 |
11 |
0 |
| OW |
0 |
40 |
117 |
106 |
121 |
134 |
14 |
0 |
| VODI |
0 |
9 |
99 |
167 |
81 |
162 |
35 |
0 |
| ODI |
0 |
0 |
9 |
48 |
59 |
181 |
60 |
0 |
| CDI |
0 |
0 |
0 |
12 |
30 |
236 |
164 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
44 |
438 |
3200 |
2452 |
|
Date: 2017-10-25:
| 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 |
21218 |
6699 |
1140 |
470 |
277 |
162 |
12 |
0 |
| OW |
0 |
7 |
76 |
70 |
150 |
154 |
36 |
0 |
| VODI |
0 |
0 |
22 |
34 |
98 |
258 |
94 |
0 |
| ODI |
0 |
0 |
2 |
15 |
59 |
106 |
164 |
0 |
| CDI |
0 |
0 |
1 |
10 |
36 |
125 |
313 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
18 |
206 |
3002 |
3119 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21218 |
6681 |
1072 |
406 |
215 |
140 |
21 |
0 |
| OW |
0 |
19 |
116 |
107 |
170 |
137 |
31 |
0 |
| VODI |
0 |
6 |
37 |
61 |
120 |
234 |
111 |
0 |
| ODI |
0 |
0 |
14 |
10 |
51 |
136 |
126 |
0 |
| CDI |
0 |
0 |
2 |
14 |
43 |
129 |
290 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
39 |
235 |
3042 |
3119 |
|
Date: 2017-10-27:
| 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 |
20902 |
6811 |
962 |
456 |
213 |
107 |
6 |
0 |
| OW |
0 |
32 |
110 |
151 |
225 |
142 |
22 |
0 |
| VODI |
0 |
4 |
23 |
53 |
164 |
218 |
67 |
0 |
| ODI |
0 |
2 |
5 |
20 |
69 |
171 |
151 |
0 |
| CDI |
0 |
0 |
5 |
6 |
44 |
153 |
281 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
24 |
250 |
3122 |
3178 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20902 |
6769 |
996 |
511 |
249 |
152 |
28 |
0 |
| OW |
0 |
53 |
51 |
104 |
206 |
136 |
49 |
0 |
| VODI |
0 |
21 |
33 |
39 |
159 |
216 |
102 |
0 |
| ODI |
0 |
4 |
17 |
17 |
48 |
133 |
151 |
0 |
| CDI |
0 |
2 |
8 |
15 |
25 |
152 |
294 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
52 |
252 |
3025 |
3178 |
|
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