Validation of sea ice concentration
Bulletin date: 2022-11-03
Model vs. observations, sea ice class contingency tables
Date: 2022-10-28:
| 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 |
22812 |
5270 |
349 |
278 |
142 |
57 |
64 |
0 |
| OW |
238 |
151 |
68 |
56 |
76 |
53 |
49 |
0 |
| VODI |
5 |
38 |
53 |
54 |
66 |
80 |
69 |
0 |
| ODI |
0 |
16 |
22 |
53 |
58 |
64 |
74 |
0 |
| CDI |
0 |
12 |
15 |
61 |
77 |
158 |
172 |
0 |
| VCDI |
0 |
0 |
13 |
16 |
37 |
221 |
3808 |
3254 |
|
...date precedes bulletin
|
Date: 2022-11-01:
| 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 |
22183 |
5480 |
542 |
452 |
112 |
40 |
45 |
0 |
| OW |
99 |
28 |
64 |
159 |
112 |
31 |
13 |
0 |
| VODI |
34 |
26 |
30 |
103 |
69 |
86 |
30 |
0 |
| ODI |
0 |
14 |
15 |
38 |
59 |
119 |
69 |
0 |
| CDI |
0 |
4 |
28 |
46 |
46 |
134 |
234 |
0 |
| VCDI |
0 |
3 |
25 |
47 |
67 |
515 |
4043 |
2915 |
|
...date precedes bulletin
|
Date: 2022-11-03:
| 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 |
20995 |
6181 |
746 |
221 |
123 |
64 |
44 |
0 |
| OW |
0 |
115 |
239 |
155 |
181 |
66 |
15 |
0 |
| VODI |
0 |
37 |
40 |
103 |
157 |
97 |
34 |
0 |
| ODI |
0 |
20 |
11 |
26 |
46 |
89 |
99 |
0 |
| CDI |
0 |
23 |
21 |
31 |
53 |
109 |
182 |
0 |
| VCDI |
0 |
36 |
64 |
44 |
52 |
428 |
4266 |
2946 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20995 |
6203 |
843 |
254 |
155 |
69 |
41 |
0 |
| OW |
0 |
100 |
142 |
119 |
131 |
53 |
17 |
0 |
| VODI |
0 |
40 |
43 |
105 |
169 |
112 |
37 |
0 |
| ODI |
0 |
11 |
11 |
29 |
53 |
84 |
83 |
0 |
| CDI |
0 |
23 |
20 |
28 |
52 |
102 |
189 |
0 |
| VCDI |
0 |
35 |
62 |
45 |
52 |
433 |
4273 |
2946 |
|
Date: 2022-11-07:
| 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 |
20442 |
6029 |
485 |
259 |
115 |
197 |
7 |
0 |
| OW |
0 |
30 |
56 |
80 |
61 |
80 |
15 |
0 |
| VODI |
0 |
21 |
46 |
59 |
122 |
128 |
28 |
0 |
| ODI |
0 |
9 |
17 |
38 |
66 |
321 |
85 |
0 |
| CDI |
0 |
6 |
13 |
17 |
66 |
594 |
601 |
0 |
| VCDI |
0 |
5 |
46 |
37 |
37 |
346 |
4081 |
3514 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20442 |
5997 |
471 |
241 |
141 |
234 |
14 |
0 |
| OW |
0 |
35 |
71 |
95 |
79 |
345 |
31 |
0 |
| VODI |
0 |
17 |
26 |
64 |
93 |
462 |
321 |
0 |
| ODI |
0 |
18 |
11 |
20 |
43 |
123 |
196 |
0 |
| CDI |
0 |
16 |
15 |
29 |
57 |
166 |
213 |
0 |
| VCDI |
0 |
17 |
69 |
41 |
54 |
336 |
4042 |
3514 |
|
Date: 2022-11-09:
| 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 |
20054 |
6175 |
537 |
236 |
161 |
130 |
0 |
0 |
| OW |
0 |
16 |
74 |
111 |
102 |
59 |
12 |
0 |
| VODI |
0 |
7 |
30 |
67 |
76 |
142 |
44 |
0 |
| ODI |
0 |
3 |
13 |
31 |
53 |
151 |
90 |
0 |
| CDI |
0 |
4 |
9 |
13 |
37 |
189 |
507 |
7 |
| VCDI |
0 |
0 |
9 |
21 |
54 |
388 |
4482 |
4065 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20054 |
6144 |
511 |
249 |
185 |
155 |
5 |
0 |
| OW |
0 |
24 |
69 |
84 |
84 |
135 |
44 |
0 |
| VODI |
0 |
13 |
45 |
65 |
83 |
215 |
505 |
7 |
| ODI |
0 |
11 |
11 |
30 |
26 |
88 |
414 |
63 |
| CDI |
0 |
4 |
14 |
19 |
30 |
124 |
301 |
13 |
| VCDI |
0 |
9 |
22 |
32 |
75 |
342 |
3866 |
3989 |
|
Date: 2022-11-11:
| 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 |
20176 |
6023 |
361 |
279 |
112 |
81 |
38 |
0 |
| OW |
0 |
52 |
88 |
134 |
44 |
40 |
14 |
0 |
| VODI |
0 |
17 |
51 |
103 |
74 |
91 |
44 |
0 |
| ODI |
0 |
4 |
15 |
43 |
59 |
100 |
64 |
0 |
| CDI |
0 |
0 |
18 |
45 |
52 |
174 |
228 |
2 |
| VCDI |
0 |
0 |
4 |
29 |
78 |
350 |
4951 |
4121 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20176 |
6000 |
380 |
329 |
112 |
82 |
52 |
0 |
| OW |
0 |
70 |
77 |
86 |
50 |
55 |
22 |
0 |
| VODI |
0 |
20 |
49 |
102 |
103 |
182 |
182 |
0 |
| ODI |
0 |
6 |
19 |
78 |
67 |
164 |
427 |
15 |
| CDI |
0 |
0 |
10 |
23 |
32 |
106 |
530 |
10 |
| VCDI |
0 |
0 |
2 |
15 |
55 |
247 |
4126 |
4098 |
|
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