Validation of sea ice concentration
Bulletin date: 2018-10-25
Model vs. observations, sea ice class contingency tables
Date: 2018-10-19:
| 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 |
24128 |
6093 |
475 |
236 |
122 |
38 |
1 |
0 |
| OW |
0 |
83 |
66 |
81 |
93 |
28 |
1 |
0 |
| VODI |
0 |
17 |
23 |
68 |
88 |
41 |
23 |
0 |
| ODI |
0 |
9 |
13 |
41 |
70 |
47 |
47 |
0 |
| CDI |
0 |
2 |
11 |
29 |
100 |
152 |
243 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
163 |
327 |
2497 |
2702 |
|
...date precedes bulletin
|
Date: 2018-10-23:
| 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 |
24705 |
5812 |
469 |
283 |
96 |
30 |
4 |
0 |
| OW |
16 |
36 |
59 |
76 |
54 |
15 |
4 |
0 |
| VODI |
0 |
12 |
41 |
63 |
84 |
45 |
28 |
0 |
| ODI |
0 |
4 |
22 |
44 |
60 |
42 |
54 |
0 |
| CDI |
0 |
1 |
21 |
48 |
64 |
54 |
128 |
0 |
| VCDI |
0 |
0 |
4 |
30 |
104 |
262 |
2711 |
2574 |
|
...date precedes bulletin
|
Date: 2018-10-25:
| 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 |
23786 |
6172 |
617 |
212 |
27 |
40 |
51 |
0 |
| OW |
0 |
165 |
147 |
125 |
46 |
35 |
20 |
0 |
| VODI |
0 |
10 |
54 |
72 |
65 |
51 |
34 |
0 |
| ODI |
0 |
0 |
20 |
37 |
59 |
63 |
46 |
0 |
| CDI |
0 |
0 |
15 |
22 |
50 |
112 |
137 |
0 |
| VCDI |
0 |
0 |
2 |
19 |
66 |
258 |
2636 |
2888 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23786 |
6238 |
656 |
251 |
39 |
53 |
58 |
0 |
| OW |
0 |
100 |
110 |
98 |
56 |
31 |
20 |
0 |
| VODI |
0 |
9 |
53 |
64 |
55 |
52 |
40 |
0 |
| ODI |
0 |
0 |
20 |
34 |
54 |
52 |
42 |
0 |
| CDI |
0 |
0 |
13 |
21 |
49 |
97 |
135 |
0 |
| VCDI |
0 |
0 |
3 |
19 |
60 |
274 |
2629 |
2888 |
|
Date: 2018-10-29:
| 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 |
21924 |
7069 |
724 |
317 |
58 |
37 |
1 |
0 |
| OW |
11 |
41 |
226 |
163 |
84 |
85 |
5 |
0 |
| VODI |
0 |
8 |
128 |
132 |
143 |
170 |
19 |
0 |
| ODI |
0 |
0 |
16 |
13 |
41 |
177 |
71 |
0 |
| CDI |
0 |
0 |
2 |
9 |
19 |
149 |
236 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
4 |
172 |
2815 |
3089 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21926 |
7017 |
763 |
400 |
142 |
89 |
1 |
0 |
| OW |
9 |
73 |
203 |
119 |
60 |
78 |
0 |
0 |
| VODI |
0 |
20 |
78 |
68 |
73 |
131 |
18 |
0 |
| ODI |
0 |
6 |
25 |
20 |
36 |
146 |
67 |
0 |
| CDI |
0 |
2 |
13 |
10 |
19 |
134 |
96 |
0 |
| VCDI |
0 |
0 |
14 |
18 |
19 |
212 |
2965 |
3089 |
|
Date: 2018-10-31:
| 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 |
21094 |
7505 |
792 |
319 |
94 |
19 |
5 |
0 |
| OW |
0 |
88 |
175 |
174 |
104 |
17 |
16 |
0 |
| VODI |
0 |
16 |
97 |
196 |
300 |
65 |
38 |
0 |
| ODI |
0 |
1 |
23 |
43 |
52 |
95 |
87 |
0 |
| CDI |
0 |
0 |
12 |
20 |
47 |
88 |
173 |
0 |
| VCDI |
0 |
0 |
2 |
7 |
31 |
202 |
3065 |
3097 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21093 |
7429 |
778 |
375 |
201 |
37 |
35 |
0 |
| OW |
1 |
115 |
161 |
160 |
208 |
49 |
29 |
0 |
| VODI |
0 |
40 |
102 |
123 |
71 |
57 |
46 |
0 |
| ODI |
0 |
14 |
23 |
58 |
56 |
73 |
89 |
0 |
| CDI |
0 |
9 |
14 |
18 |
42 |
47 |
132 |
1 |
| VCDI |
0 |
3 |
23 |
25 |
50 |
223 |
3053 |
3096 |
|
Date: 2018-11-02:
| 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 |
21599 |
6692 |
715 |
266 |
107 |
61 |
4 |
0 |
| OW |
0 |
114 |
187 |
190 |
133 |
34 |
6 |
0 |
| VODI |
0 |
9 |
71 |
109 |
314 |
132 |
39 |
0 |
| ODI |
0 |
0 |
14 |
44 |
81 |
181 |
65 |
0 |
| CDI |
0 |
0 |
9 |
17 |
41 |
134 |
153 |
10 |
| VCDI |
0 |
0 |
2 |
5 |
31 |
145 |
2962 |
3483 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21597 |
6581 |
718 |
318 |
170 |
119 |
22 |
0 |
| OW |
2 |
188 |
183 |
162 |
155 |
103 |
38 |
0 |
| VODI |
0 |
37 |
48 |
78 |
251 |
106 |
63 |
0 |
| ODI |
0 |
9 |
34 |
41 |
60 |
107 |
70 |
0 |
| CDI |
0 |
0 |
14 |
20 |
37 |
114 |
168 |
0 |
| VCDI |
0 |
0 |
1 |
12 |
34 |
138 |
2868 |
3493 |
|
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