Validation of sea ice concentration
Bulletin date: 2018-01-11
Model vs. observations, sea ice class contingency tables
Date: 2018-01-05:
| 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 |
13953 |
7742 |
1133 |
446 |
129 |
71 |
19 |
1 |
| OW |
0 |
123 |
212 |
192 |
96 |
46 |
32 |
4 |
| VODI |
0 |
64 |
132 |
132 |
170 |
103 |
74 |
0 |
| ODI |
0 |
14 |
49 |
59 |
115 |
139 |
107 |
0 |
| CDI |
0 |
10 |
35 |
53 |
61 |
237 |
302 |
14 |
| VCDI |
0 |
2 |
36 |
70 |
104 |
594 |
7228 |
4056 |
|
...date precedes bulletin
|
Date: 2018-01-09:
| 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 |
14465 |
7563 |
1004 |
372 |
242 |
104 |
32 |
0 |
| OW |
0 |
54 |
140 |
81 |
109 |
99 |
15 |
0 |
| VODI |
0 |
30 |
83 |
88 |
150 |
169 |
58 |
0 |
| ODI |
0 |
5 |
40 |
65 |
153 |
218 |
129 |
21 |
| CDI |
0 |
0 |
18 |
36 |
88 |
274 |
451 |
82 |
| VCDI |
0 |
303 |
23 |
77 |
101 |
779 |
8267 |
2171 |
|
...date precedes bulletin
|
Date: 2018-01-11:
| 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 |
14221 |
7383 |
1140 |
685 |
119 |
67 |
20 |
0 |
| OW |
0 |
61 |
83 |
179 |
114 |
75 |
35 |
0 |
| VODI |
0 |
32 |
36 |
128 |
83 |
159 |
76 |
0 |
| ODI |
0 |
7 |
24 |
76 |
61 |
162 |
147 |
0 |
| CDI |
0 |
0 |
30 |
30 |
54 |
281 |
415 |
18 |
| VCDI |
0 |
303 |
34 |
53 |
95 |
839 |
9657 |
1177 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14221 |
7385 |
1134 |
714 |
150 |
82 |
26 |
0 |
| OW |
0 |
61 |
92 |
152 |
79 |
71 |
23 |
0 |
| VODI |
0 |
29 |
28 |
120 |
82 |
169 |
82 |
0 |
| ODI |
0 |
6 |
21 |
70 |
58 |
150 |
146 |
0 |
| CDI |
0 |
2 |
25 |
33 |
59 |
322 |
414 |
19 |
| VCDI |
0 |
303 |
47 |
62 |
98 |
789 |
9659 |
1176 |
|
Date: 2018-01-15:
| 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 |
14343 |
7016 |
1980 |
443 |
118 |
26 |
9 |
0 |
| OW |
0 |
15 |
167 |
217 |
106 |
47 |
13 |
0 |
| VODI |
0 |
4 |
90 |
188 |
193 |
177 |
53 |
0 |
| ODI |
0 |
4 |
34 |
63 |
125 |
245 |
141 |
5 |
| CDI |
0 |
2 |
24 |
72 |
95 |
291 |
448 |
85 |
| VCDI |
0 |
0 |
21 |
39 |
48 |
475 |
6149 |
4588 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14343 |
6967 |
1825 |
362 |
110 |
32 |
8 |
0 |
| OW |
0 |
47 |
180 |
187 |
77 |
44 |
35 |
0 |
| VODI |
0 |
15 |
120 |
168 |
142 |
139 |
60 |
0 |
| ODI |
0 |
6 |
63 |
94 |
99 |
154 |
118 |
7 |
| CDI |
0 |
4 |
51 |
87 |
110 |
229 |
332 |
80 |
| VCDI |
0 |
2 |
77 |
124 |
147 |
663 |
6260 |
4591 |
|
Date: 2018-01-17:
| 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 |
15139 |
7117 |
1303 |
340 |
93 |
64 |
6 |
0 |
| OW |
0 |
24 |
163 |
187 |
70 |
89 |
23 |
0 |
| VODI |
0 |
6 |
143 |
144 |
117 |
154 |
60 |
0 |
| ODI |
0 |
2 |
64 |
74 |
95 |
198 |
144 |
0 |
| CDI |
0 |
0 |
48 |
68 |
120 |
249 |
375 |
28 |
| VCDI |
0 |
0 |
51 |
122 |
190 |
814 |
6815 |
3460 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15139 |
7007 |
1113 |
282 |
84 |
61 |
9 |
0 |
| OW |
0 |
81 |
188 |
142 |
54 |
65 |
38 |
0 |
| VODI |
0 |
45 |
143 |
154 |
109 |
102 |
85 |
0 |
| ODI |
0 |
12 |
92 |
75 |
84 |
165 |
147 |
0 |
| CDI |
0 |
4 |
77 |
59 |
78 |
211 |
290 |
24 |
| VCDI |
0 |
0 |
159 |
223 |
276 |
964 |
6854 |
3464 |
|
Date: 2018-01-19:
| 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 |
15370 |
7281 |
911 |
244 |
64 |
31 |
5 |
0 |
| OW |
0 |
50 |
253 |
158 |
80 |
62 |
31 |
0 |
| VODI |
0 |
28 |
168 |
153 |
102 |
124 |
76 |
0 |
| ODI |
0 |
10 |
67 |
125 |
91 |
165 |
143 |
0 |
| CDI |
0 |
1 |
50 |
73 |
117 |
230 |
379 |
8 |
| VCDI |
0 |
0 |
43 |
131 |
207 |
894 |
6581 |
3653 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15370 |
7087 |
753 |
215 |
63 |
23 |
17 |
0 |
| OW |
0 |
137 |
239 |
101 |
49 |
46 |
35 |
0 |
| VODI |
0 |
75 |
188 |
151 |
96 |
85 |
96 |
0 |
| ODI |
0 |
27 |
93 |
96 |
72 |
109 |
174 |
0 |
| CDI |
0 |
18 |
62 |
96 |
81 |
176 |
277 |
11 |
| VCDI |
0 |
26 |
157 |
225 |
300 |
1067 |
6616 |
3650 |
|
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