Validation of sea ice concentration
Bulletin date: 2022-08-04
Model vs. observations, sea ice class contingency tables
Date: 2022-07-29:
| 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 |
19644 |
8695 |
1673 |
574 |
171 |
101 |
48 |
0 |
| OW |
0 |
7 |
94 |
94 |
69 |
46 |
37 |
0 |
| VODI |
0 |
0 |
45 |
92 |
110 |
109 |
135 |
0 |
| ODI |
0 |
0 |
12 |
33 |
90 |
159 |
461 |
0 |
| CDI |
0 |
0 |
0 |
29 |
69 |
137 |
2909 |
2129 |
| VCDI |
0 |
0 |
0 |
1 |
2 |
13 |
157 |
214 |
|
...date precedes bulletin
|
Date: 2022-08-02:
| 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 |
19067 |
9234 |
2194 |
302 |
96 |
122 |
60 |
0 |
| OW |
0 |
1 |
65 |
95 |
57 |
60 |
39 |
0 |
| VODI |
0 |
0 |
15 |
79 |
107 |
147 |
160 |
0 |
| ODI |
0 |
0 |
0 |
15 |
63 |
108 |
527 |
171 |
| CDI |
0 |
0 |
0 |
7 |
27 |
59 |
2727 |
1833 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
10 |
367 |
341 |
|
...date precedes bulletin
|
Date: 2022-08-04:
| 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 |
19275 |
9204 |
2054 |
268 |
155 |
144 |
49 |
0 |
| OW |
0 |
1 |
88 |
72 |
64 |
50 |
46 |
0 |
| VODI |
0 |
0 |
25 |
67 |
115 |
145 |
137 |
0 |
| ODI |
0 |
0 |
0 |
9 |
67 |
93 |
615 |
171 |
| CDI |
0 |
0 |
0 |
11 |
27 |
69 |
2568 |
1659 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
12 |
523 |
375 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19275 |
9204 |
2051 |
287 |
166 |
147 |
50 |
0 |
| OW |
0 |
1 |
89 |
51 |
57 |
55 |
41 |
0 |
| VODI |
0 |
0 |
27 |
69 |
107 |
143 |
146 |
0 |
| ODI |
0 |
0 |
0 |
9 |
69 |
76 |
584 |
159 |
| CDI |
0 |
0 |
0 |
11 |
28 |
79 |
2609 |
1681 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
13 |
508 |
365 |
|
Date: 2022-08-08:
| 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 |
19776 |
8858 |
1954 |
292 |
129 |
143 |
22 |
0 |
| OW |
0 |
0 |
88 |
74 |
79 |
43 |
32 |
0 |
| VODI |
0 |
0 |
47 |
69 |
120 |
157 |
86 |
0 |
| ODI |
0 |
0 |
0 |
9 |
70 |
131 |
461 |
3 |
| CDI |
0 |
0 |
0 |
17 |
19 |
46 |
2087 |
2278 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
12 |
192 |
865 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19776 |
8858 |
1977 |
316 |
144 |
162 |
29 |
0 |
| OW |
0 |
0 |
87 |
45 |
76 |
53 |
60 |
0 |
| VODI |
0 |
0 |
23 |
68 |
97 |
129 |
203 |
0 |
| ODI |
0 |
0 |
2 |
15 |
73 |
109 |
571 |
283 |
| CDI |
0 |
0 |
0 |
17 |
27 |
62 |
1826 |
2034 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
17 |
191 |
829 |
|
Date: 2022-08-10:
| 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 |
21219 |
7834 |
1600 |
296 |
160 |
119 |
21 |
0 |
| OW |
0 |
0 |
67 |
76 |
74 |
40 |
37 |
0 |
| VODI |
0 |
0 |
18 |
79 |
102 |
139 |
125 |
0 |
| ODI |
0 |
0 |
0 |
27 |
55 |
99 |
432 |
3 |
| CDI |
0 |
0 |
0 |
23 |
41 |
69 |
2342 |
1864 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
12 |
669 |
511 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21219 |
7834 |
1613 |
312 |
170 |
120 |
33 |
0 |
| OW |
0 |
0 |
61 |
57 |
70 |
84 |
82 |
0 |
| VODI |
0 |
0 |
10 |
62 |
67 |
97 |
250 |
0 |
| ODI |
0 |
0 |
1 |
40 |
70 |
89 |
599 |
275 |
| CDI |
0 |
0 |
0 |
30 |
54 |
79 |
2095 |
1575 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
9 |
567 |
528 |
|
Date: 2022-08-12:
| 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 |
20931 |
8262 |
1539 |
315 |
117 |
99 |
17 |
0 |
| OW |
0 |
0 |
96 |
74 |
62 |
42 |
26 |
0 |
| VODI |
0 |
0 |
39 |
81 |
124 |
117 |
107 |
0 |
| ODI |
0 |
0 |
5 |
35 |
59 |
108 |
416 |
4 |
| CDI |
0 |
0 |
0 |
42 |
55 |
88 |
2334 |
1687 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
4 |
658 |
613 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20931 |
8262 |
1583 |
327 |
128 |
108 |
24 |
0 |
| OW |
0 |
0 |
69 |
77 |
86 |
74 |
59 |
0 |
| VODI |
0 |
0 |
21 |
54 |
69 |
93 |
267 |
4 |
| ODI |
0 |
0 |
6 |
42 |
57 |
72 |
685 |
312 |
| CDI |
0 |
0 |
0 |
47 |
73 |
103 |
1941 |
1457 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
8 |
582 |
531 |
|
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