Validation of sea ice concentration
Bulletin date: 2022-07-14
Model vs. observations, sea ice class contingency tables
Date: 2022-07-08:
| 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 |
18699 |
7334 |
1647 |
732 |
363 |
182 |
105 |
0 |
| OW |
0 |
17 |
52 |
125 |
169 |
116 |
72 |
0 |
| VODI |
0 |
7 |
35 |
65 |
153 |
162 |
170 |
0 |
| ODI |
0 |
4 |
16 |
25 |
59 |
77 |
254 |
0 |
| CDI |
0 |
0 |
7 |
60 |
114 |
243 |
1647 |
609 |
| VCDI |
0 |
0 |
0 |
21 |
27 |
79 |
1633 |
3079 |
|
...date precedes bulletin
|
Date: 2022-07-12:
| 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 |
18651 |
7508 |
2056 |
735 |
268 |
185 |
98 |
0 |
| OW |
0 |
3 |
67 |
142 |
116 |
81 |
39 |
0 |
| VODI |
0 |
3 |
27 |
80 |
134 |
167 |
99 |
0 |
| ODI |
0 |
0 |
2 |
19 |
74 |
129 |
344 |
0 |
| CDI |
0 |
0 |
0 |
63 |
95 |
190 |
1725 |
1075 |
| VCDI |
0 |
0 |
0 |
2 |
6 |
41 |
1125 |
2810 |
|
...date precedes bulletin
|
Date: 2022-07-14:
| 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 |
18303 |
7537 |
2647 |
722 |
235 |
168 |
66 |
0 |
| OW |
0 |
2 |
99 |
137 |
111 |
61 |
44 |
0 |
| VODI |
0 |
3 |
29 |
110 |
125 |
91 |
123 |
0 |
| ODI |
0 |
0 |
8 |
36 |
72 |
92 |
310 |
0 |
| CDI |
0 |
0 |
7 |
71 |
93 |
255 |
1590 |
1191 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
19 |
975 |
2823 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18303 |
7537 |
2658 |
725 |
239 |
166 |
68 |
0 |
| OW |
0 |
2 |
81 |
135 |
108 |
59 |
39 |
0 |
| VODI |
0 |
1 |
34 |
110 |
121 |
99 |
106 |
0 |
| ODI |
0 |
2 |
10 |
31 |
68 |
91 |
323 |
0 |
| CDI |
0 |
0 |
7 |
75 |
98 |
247 |
1622 |
1245 |
| VCDI |
0 |
0 |
0 |
1 |
5 |
24 |
950 |
2769 |
|
Date: 2022-07-18:
| 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 |
18549 |
8154 |
2603 |
441 |
184 |
122 |
102 |
0 |
| OW |
0 |
1 |
130 |
87 |
78 |
47 |
33 |
0 |
| VODI |
0 |
2 |
32 |
74 |
121 |
127 |
88 |
0 |
| ODI |
0 |
0 |
5 |
61 |
85 |
220 |
370 |
0 |
| CDI |
0 |
0 |
4 |
41 |
77 |
226 |
2244 |
1500 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
6 |
234 |
2111 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18549 |
8139 |
2476 |
412 |
175 |
126 |
105 |
0 |
| OW |
0 |
8 |
186 |
88 |
73 |
54 |
36 |
0 |
| VODI |
0 |
5 |
62 |
72 |
99 |
119 |
85 |
0 |
| ODI |
0 |
4 |
31 |
39 |
80 |
142 |
281 |
0 |
| CDI |
0 |
1 |
19 |
89 |
109 |
276 |
1860 |
1331 |
| VCDI |
0 |
0 |
0 |
4 |
9 |
31 |
704 |
2280 |
|
Date: 2022-07-20:
| 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 |
18626 |
8373 |
2325 |
655 |
228 |
101 |
81 |
0 |
| OW |
0 |
3 |
93 |
105 |
63 |
53 |
42 |
0 |
| VODI |
0 |
0 |
15 |
94 |
127 |
113 |
125 |
3 |
| ODI |
0 |
0 |
3 |
43 |
81 |
142 |
466 |
25 |
| CDI |
0 |
0 |
1 |
37 |
56 |
172 |
2721 |
1476 |
| VCDI |
0 |
0 |
0 |
1 |
4 |
5 |
182 |
1519 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18626 |
8341 |
2213 |
634 |
219 |
116 |
84 |
0 |
| OW |
0 |
15 |
114 |
102 |
68 |
42 |
39 |
0 |
| VODI |
0 |
11 |
53 |
80 |
88 |
80 |
118 |
6 |
| ODI |
0 |
8 |
26 |
45 |
67 |
96 |
296 |
52 |
| CDI |
0 |
1 |
31 |
73 |
112 |
239 |
2739 |
1364 |
| VCDI |
0 |
0 |
0 |
1 |
5 |
13 |
341 |
1601 |
|
Date: 2022-07-22:
| 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 |
19708 |
7845 |
1903 |
678 |
177 |
120 |
75 |
0 |
| OW |
0 |
4 |
108 |
139 |
63 |
35 |
48 |
0 |
| VODI |
0 |
0 |
46 |
143 |
101 |
84 |
143 |
0 |
| ODI |
0 |
0 |
10 |
56 |
114 |
118 |
485 |
1 |
| CDI |
0 |
0 |
2 |
76 |
84 |
184 |
3305 |
1239 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
267 |
798 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19708 |
7792 |
1819 |
670 |
176 |
126 |
82 |
0 |
| OW |
0 |
24 |
74 |
117 |
54 |
29 |
44 |
0 |
| VODI |
0 |
18 |
55 |
111 |
65 |
74 |
133 |
1 |
| ODI |
0 |
14 |
45 |
82 |
100 |
85 |
317 |
11 |
| CDI |
0 |
1 |
76 |
112 |
144 |
227 |
3407 |
1160 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
340 |
866 |
|
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