Validation of sea ice concentration
Bulletin date: 2019-10-31
Model vs. observations, sea ice class contingency tables
Date: 2019-10-25:
| 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 |
20717 |
6711 |
569 |
368 |
143 |
65 |
38 |
0 |
| OW |
0 |
89 |
138 |
149 |
57 |
33 |
37 |
0 |
| VODI |
0 |
23 |
75 |
139 |
98 |
127 |
32 |
0 |
| ODI |
0 |
3 |
10 |
78 |
64 |
106 |
40 |
0 |
| CDI |
0 |
1 |
10 |
33 |
75 |
118 |
127 |
0 |
| VCDI |
0 |
3 |
6 |
18 |
87 |
612 |
4238 |
2922 |
|
...date precedes bulletin
|
Date: 2019-10-29:
| 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 |
19732 |
6668 |
735 |
596 |
255 |
85 |
4 |
0 |
| OW |
1 |
53 |
111 |
151 |
122 |
43 |
9 |
0 |
| VODI |
0 |
7 |
35 |
172 |
121 |
103 |
30 |
0 |
| ODI |
0 |
1 |
17 |
49 |
67 |
191 |
70 |
0 |
| CDI |
0 |
2 |
5 |
37 |
54 |
238 |
214 |
0 |
| VCDI |
0 |
4 |
2 |
31 |
95 |
454 |
3966 |
3629 |
|
...date precedes bulletin
|
Date: 2019-10-31:
| 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 |
19433 |
6342 |
530 |
389 |
382 |
201 |
78 |
0 |
| OW |
1 |
107 |
78 |
138 |
236 |
312 |
31 |
0 |
| VODI |
0 |
4 |
19 |
90 |
91 |
273 |
41 |
0 |
| ODI |
0 |
0 |
1 |
18 |
46 |
260 |
72 |
0 |
| CDI |
0 |
0 |
1 |
15 |
38 |
271 |
209 |
0 |
| VCDI |
0 |
5 |
1 |
11 |
56 |
438 |
3983 |
3958 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19431 |
6393 |
569 |
431 |
418 |
321 |
81 |
0 |
| OW |
3 |
51 |
43 |
110 |
198 |
225 |
27 |
0 |
| VODI |
0 |
9 |
13 |
76 |
96 |
237 |
50 |
0 |
| ODI |
0 |
0 |
3 |
18 |
42 |
309 |
71 |
0 |
| CDI |
0 |
1 |
1 |
16 |
39 |
269 |
198 |
0 |
| VCDI |
0 |
4 |
1 |
10 |
56 |
394 |
3987 |
3958 |
|
Date: 2019-11-04:
| 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 |
18170 |
6755 |
874 |
418 |
122 |
49 |
53 |
0 |
| OW |
0 |
14 |
129 |
177 |
106 |
36 |
11 |
0 |
| VODI |
0 |
4 |
52 |
140 |
128 |
89 |
48 |
0 |
| ODI |
0 |
5 |
14 |
72 |
132 |
239 |
163 |
0 |
| CDI |
0 |
0 |
5 |
26 |
63 |
352 |
483 |
24 |
| VCDI |
0 |
4 |
2 |
14 |
56 |
1096 |
5338 |
2696 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18170 |
6735 |
876 |
452 |
215 |
113 |
115 |
0 |
| OW |
0 |
26 |
107 |
176 |
123 |
212 |
119 |
0 |
| VODI |
0 |
10 |
62 |
111 |
113 |
229 |
431 |
0 |
| ODI |
0 |
5 |
19 |
53 |
58 |
86 |
226 |
5 |
| CDI |
0 |
2 |
8 |
36 |
40 |
135 |
291 |
29 |
| VCDI |
0 |
4 |
4 |
19 |
58 |
1086 |
4914 |
2686 |
|
Date: 2019-11-06:
| 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 |
17692 |
6977 |
756 |
313 |
146 |
127 |
65 |
0 |
| OW |
0 |
25 |
136 |
147 |
99 |
65 |
40 |
0 |
| VODI |
0 |
3 |
72 |
96 |
114 |
118 |
50 |
0 |
| ODI |
0 |
0 |
28 |
51 |
80 |
139 |
133 |
2 |
| CDI |
0 |
0 |
8 |
20 |
67 |
208 |
556 |
38 |
| VCDI |
0 |
0 |
5 |
9 |
23 |
325 |
5610 |
3816 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17692 |
6938 |
758 |
345 |
204 |
167 |
114 |
0 |
| OW |
0 |
46 |
146 |
121 |
108 |
132 |
76 |
0 |
| VODI |
0 |
18 |
50 |
108 |
121 |
187 |
513 |
0 |
| ODI |
0 |
3 |
28 |
26 |
46 |
99 |
560 |
13 |
| CDI |
0 |
0 |
15 |
21 |
29 |
112 |
336 |
101 |
| VCDI |
0 |
0 |
8 |
15 |
21 |
285 |
4855 |
3742 |
|
Date: 2019-11-08:
| 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 |
16194 |
7882 |
770 |
384 |
189 |
115 |
64 |
0 |
| OW |
0 |
105 |
139 |
109 |
112 |
84 |
40 |
0 |
| VODI |
0 |
16 |
56 |
80 |
170 |
125 |
84 |
0 |
| ODI |
0 |
6 |
28 |
27 |
70 |
126 |
140 |
1 |
| CDI |
0 |
5 |
12 |
18 |
42 |
197 |
345 |
38 |
| VCDI |
0 |
5 |
11 |
10 |
30 |
337 |
5854 |
4139 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16194 |
7841 |
781 |
425 |
243 |
170 |
110 |
0 |
| OW |
0 |
125 |
111 |
90 |
129 |
135 |
79 |
0 |
| VODI |
0 |
28 |
67 |
67 |
144 |
181 |
229 |
0 |
| ODI |
0 |
12 |
22 |
16 |
42 |
116 |
755 |
11 |
| CDI |
0 |
6 |
20 |
16 |
21 |
94 |
573 |
111 |
| VCDI |
0 |
7 |
15 |
14 |
34 |
288 |
4781 |
4056 |
|
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