Validation of sea ice concentration
Bulletin date: 2017-12-07
Model vs. observations, sea ice class contingency tables
Date: 2017-12-01:
| 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 |
15886 |
7617 |
835 |
516 |
430 |
178 |
49 |
0 |
| OW |
0 |
85 |
131 |
146 |
85 |
81 |
42 |
0 |
| VODI |
0 |
13 |
127 |
148 |
116 |
131 |
88 |
3 |
| ODI |
0 |
0 |
43 |
105 |
104 |
128 |
171 |
18 |
| CDI |
0 |
0 |
8 |
50 |
97 |
188 |
297 |
34 |
| VCDI |
0 |
0 |
0 |
31 |
81 |
492 |
6626 |
2979 |
|
...date precedes bulletin
|
Date: 2017-12-05:
| 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 |
16019 |
7675 |
1040 |
496 |
353 |
245 |
42 |
0 |
| OW |
0 |
114 |
202 |
145 |
95 |
50 |
18 |
0 |
| VODI |
0 |
22 |
106 |
119 |
119 |
80 |
42 |
0 |
| ODI |
0 |
9 |
36 |
96 |
97 |
152 |
96 |
0 |
| CDI |
0 |
7 |
27 |
49 |
89 |
280 |
235 |
8 |
| VCDI |
0 |
2 |
22 |
65 |
140 |
630 |
6061 |
3076 |
|
...date precedes bulletin
|
Date: 2017-12-07:
| 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 |
15914 |
7588 |
814 |
342 |
189 |
221 |
176 |
0 |
| OW |
0 |
131 |
268 |
161 |
77 |
61 |
29 |
0 |
| VODI |
0 |
64 |
150 |
128 |
116 |
110 |
47 |
0 |
| ODI |
0 |
22 |
38 |
80 |
103 |
132 |
101 |
0 |
| CDI |
0 |
16 |
25 |
44 |
100 |
208 |
290 |
20 |
| VCDI |
0 |
15 |
48 |
71 |
195 |
641 |
5849 |
3575 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15912 |
7584 |
848 |
351 |
201 |
222 |
178 |
0 |
| OW |
2 |
119 |
200 |
145 |
60 |
53 |
27 |
0 |
| VODI |
0 |
81 |
173 |
129 |
119 |
106 |
55 |
0 |
| ODI |
0 |
22 |
49 |
78 |
103 |
127 |
101 |
0 |
| CDI |
0 |
16 |
21 |
48 |
100 |
212 |
309 |
20 |
| VCDI |
0 |
14 |
52 |
75 |
197 |
653 |
5822 |
3575 |
|
Date: 2017-12-11:
| 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 |
15625 |
7351 |
879 |
330 |
202 |
225 |
250 |
0 |
| OW |
0 |
24 |
158 |
168 |
200 |
204 |
42 |
0 |
| VODI |
0 |
14 |
38 |
86 |
166 |
245 |
138 |
0 |
| ODI |
0 |
6 |
9 |
21 |
54 |
224 |
233 |
8 |
| CDI |
0 |
4 |
7 |
8 |
36 |
177 |
665 |
88 |
| VCDI |
0 |
1 |
5 |
3 |
6 |
103 |
5302 |
4854 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15625 |
7225 |
793 |
302 |
229 |
280 |
295 |
0 |
| OW |
0 |
93 |
130 |
98 |
87 |
94 |
61 |
0 |
| VODI |
0 |
46 |
101 |
117 |
170 |
229 |
101 |
0 |
| ODI |
0 |
22 |
39 |
56 |
78 |
175 |
144 |
7 |
| CDI |
0 |
8 |
18 |
32 |
67 |
187 |
381 |
86 |
| VCDI |
0 |
6 |
15 |
11 |
33 |
213 |
5648 |
4857 |
|
Date: 2017-12-13:
| 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 |
15839 |
7323 |
1086 |
341 |
149 |
147 |
109 |
0 |
| OW |
0 |
30 |
201 |
194 |
102 |
102 |
24 |
0 |
| VODI |
0 |
26 |
74 |
141 |
171 |
155 |
71 |
0 |
| ODI |
0 |
9 |
22 |
64 |
104 |
154 |
139 |
0 |
| CDI |
0 |
7 |
12 |
33 |
64 |
201 |
412 |
77 |
| VCDI |
0 |
1 |
24 |
21 |
48 |
336 |
6509 |
3637 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15839 |
7161 |
954 |
305 |
153 |
183 |
130 |
0 |
| OW |
0 |
114 |
173 |
110 |
70 |
80 |
35 |
0 |
| VODI |
0 |
73 |
160 |
171 |
158 |
129 |
67 |
0 |
| ODI |
0 |
28 |
70 |
118 |
95 |
117 |
135 |
0 |
| CDI |
0 |
13 |
29 |
68 |
100 |
181 |
404 |
62 |
| VCDI |
0 |
7 |
33 |
22 |
62 |
405 |
6493 |
3652 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15851 |
7098 |
740 |
286 |
167 |
153 |
168 |
0 |
| OW |
0 |
89 |
186 |
114 |
80 |
66 |
43 |
0 |
| VODI |
0 |
75 |
179 |
143 |
103 |
121 |
67 |
0 |
| ODI |
0 |
27 |
57 |
119 |
113 |
128 |
139 |
4 |
| CDI |
0 |
21 |
31 |
48 |
100 |
134 |
467 |
23 |
| VCDI |
0 |
33 |
100 |
77 |
158 |
491 |
7701 |
2459 |
|
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