Validation of sea ice concentration
Bulletin date: 2022-11-10
Model vs. observations, sea ice class contingency tables
Date: 2022-11-04:
| 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 |
20792 |
6202 |
571 |
174 |
108 |
106 |
42 |
0 |
| OW |
0 |
159 |
196 |
197 |
297 |
98 |
20 |
0 |
| VODI |
0 |
35 |
49 |
94 |
105 |
227 |
24 |
0 |
| ODI |
0 |
18 |
17 |
23 |
43 |
130 |
97 |
0 |
| CDI |
0 |
14 |
22 |
28 |
54 |
141 |
186 |
0 |
| VCDI |
0 |
21 |
60 |
36 |
82 |
301 |
3855 |
3535 |
|
...date precedes bulletin
|
Date: 2022-11-08:
| 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 |
20130 |
6227 |
544 |
280 |
136 |
112 |
3 |
0 |
| OW |
0 |
23 |
65 |
96 |
78 |
58 |
14 |
0 |
| VODI |
0 |
9 |
41 |
55 |
121 |
119 |
37 |
0 |
| ODI |
0 |
7 |
20 |
31 |
70 |
188 |
90 |
0 |
| CDI |
0 |
4 |
14 |
15 |
50 |
566 |
506 |
8 |
| VCDI |
0 |
5 |
10 |
19 |
60 |
382 |
4151 |
3815 |
|
...date precedes bulletin
|
Date: 2022-11-10:
| 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 |
20465 |
5861 |
417 |
192 |
112 |
116 |
2 |
0 |
| OW |
0 |
43 |
91 |
138 |
70 |
33 |
7 |
0 |
| VODI |
0 |
16 |
49 |
91 |
83 |
113 |
35 |
0 |
| ODI |
0 |
2 |
24 |
41 |
60 |
115 |
71 |
0 |
| CDI |
0 |
1 |
7 |
51 |
48 |
147 |
273 |
1 |
| VCDI |
0 |
1 |
3 |
17 |
58 |
378 |
4992 |
3935 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20465 |
5872 |
423 |
203 |
126 |
127 |
3 |
0 |
| OW |
0 |
33 |
85 |
112 |
54 |
32 |
7 |
0 |
| VODI |
0 |
14 |
45 |
100 |
84 |
104 |
36 |
0 |
| ODI |
0 |
3 |
23 |
41 |
59 |
122 |
68 |
0 |
| CDI |
0 |
0 |
12 |
52 |
38 |
135 |
286 |
4 |
| VCDI |
0 |
2 |
3 |
22 |
70 |
382 |
4980 |
3932 |
|
Date: 2022-11-14:
| 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 |
18250 |
7170 |
888 |
319 |
138 |
162 |
30 |
0 |
| OW |
0 |
12 |
70 |
98 |
78 |
80 |
6 |
0 |
| VODI |
0 |
4 |
39 |
59 |
77 |
158 |
30 |
0 |
| ODI |
0 |
0 |
18 |
24 |
56 |
137 |
84 |
0 |
| CDI |
0 |
0 |
4 |
40 |
47 |
181 |
271 |
12 |
| VCDI |
0 |
0 |
0 |
6 |
34 |
343 |
4576 |
4658 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18250 |
7131 |
825 |
296 |
107 |
153 |
28 |
0 |
| OW |
0 |
48 |
101 |
84 |
86 |
63 |
6 |
0 |
| VODI |
0 |
7 |
65 |
75 |
82 |
183 |
46 |
0 |
| ODI |
0 |
0 |
15 |
38 |
52 |
117 |
109 |
0 |
| CDI |
0 |
0 |
8 |
37 |
52 |
198 |
251 |
9 |
| VCDI |
0 |
0 |
5 |
16 |
51 |
347 |
4557 |
4661 |
|
Date: 2022-11-16:
| 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 |
18128 |
7182 |
791 |
318 |
199 |
147 |
50 |
0 |
| OW |
0 |
28 |
95 |
87 |
66 |
66 |
9 |
0 |
| VODI |
0 |
10 |
37 |
85 |
85 |
123 |
28 |
0 |
| ODI |
0 |
2 |
13 |
34 |
66 |
130 |
48 |
0 |
| CDI |
0 |
0 |
5 |
32 |
61 |
151 |
216 |
15 |
| VCDI |
0 |
0 |
0 |
34 |
58 |
286 |
4533 |
4941 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18128 |
7070 |
749 |
291 |
187 |
117 |
52 |
0 |
| OW |
0 |
86 |
75 |
64 |
48 |
61 |
5 |
0 |
| VODI |
0 |
60 |
78 |
87 |
71 |
118 |
30 |
0 |
| ODI |
0 |
3 |
25 |
62 |
86 |
143 |
81 |
3 |
| CDI |
0 |
3 |
9 |
36 |
67 |
205 |
299 |
15 |
| VCDI |
0 |
0 |
5 |
50 |
76 |
259 |
4417 |
4938 |
|
Date: 2022-11-18:
| 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 |
18632 |
6896 |
613 |
258 |
105 |
91 |
57 |
0 |
| OW |
1 |
65 |
132 |
75 |
66 |
27 |
6 |
0 |
| VODI |
0 |
15 |
82 |
106 |
68 |
69 |
17 |
0 |
| ODI |
0 |
1 |
35 |
56 |
93 |
121 |
32 |
0 |
| CDI |
0 |
0 |
12 |
34 |
59 |
178 |
217 |
37 |
| VCDI |
0 |
0 |
5 |
25 |
70 |
326 |
4643 |
4834 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18633 |
6765 |
575 |
246 |
99 |
91 |
64 |
0 |
| OW |
0 |
100 |
98 |
60 |
47 |
29 |
2 |
0 |
| VODI |
0 |
74 |
85 |
71 |
57 |
78 |
15 |
0 |
| ODI |
0 |
37 |
65 |
83 |
62 |
86 |
64 |
0 |
| CDI |
0 |
1 |
38 |
48 |
107 |
181 |
303 |
15 |
| VCDI |
0 |
0 |
18 |
46 |
89 |
347 |
4524 |
4856 |
|
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