Validation of sea ice concentration
Bulletin date: 2022-09-08
Model vs. observations, sea ice class contingency tables
Date: 2022-09-02:
| 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 |
23007 |
6364 |
1343 |
322 |
138 |
42 |
19 |
0 |
| OW |
0 |
9 |
49 |
117 |
96 |
39 |
21 |
0 |
| VODI |
0 |
7 |
34 |
67 |
87 |
107 |
53 |
0 |
| ODI |
0 |
0 |
17 |
26 |
80 |
145 |
563 |
2 |
| CDI |
0 |
0 |
0 |
63 |
97 |
148 |
1934 |
1063 |
| VCDI |
0 |
0 |
0 |
1 |
4 |
3 |
913 |
1179 |
|
...date precedes bulletin
|
Date: 2022-09-06:
| 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 |
24189 |
5643 |
740 |
497 |
110 |
37 |
3 |
0 |
| OW |
0 |
12 |
23 |
127 |
105 |
26 |
10 |
0 |
| VODI |
0 |
0 |
16 |
84 |
122 |
77 |
30 |
0 |
| ODI |
0 |
0 |
4 |
56 |
193 |
277 |
357 |
0 |
| CDI |
0 |
0 |
0 |
84 |
104 |
280 |
1799 |
907 |
| VCDI |
0 |
0 |
0 |
2 |
7 |
32 |
1069 |
1137 |
|
...date precedes bulletin
|
Date: 2022-09-08:
| 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 |
24291 |
5607 |
583 |
516 |
103 |
34 |
6 |
0 |
| OW |
0 |
10 |
18 |
178 |
81 |
26 |
13 |
0 |
| VODI |
0 |
0 |
9 |
107 |
129 |
55 |
33 |
0 |
| ODI |
0 |
0 |
2 |
37 |
152 |
303 |
295 |
0 |
| CDI |
0 |
0 |
0 |
65 |
93 |
251 |
1817 |
879 |
| VCDI |
0 |
0 |
0 |
28 |
36 |
63 |
1157 |
1182 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24291 |
5606 |
585 |
530 |
94 |
33 |
5 |
0 |
| OW |
0 |
10 |
16 |
157 |
91 |
24 |
16 |
0 |
| VODI |
0 |
1 |
11 |
107 |
134 |
71 |
30 |
0 |
| ODI |
0 |
0 |
0 |
45 |
147 |
271 |
306 |
0 |
| CDI |
0 |
0 |
0 |
64 |
88 |
271 |
1826 |
862 |
| VCDI |
0 |
0 |
0 |
28 |
40 |
62 |
1138 |
1199 |
|
Date: 2022-09-12:
| 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 |
24268 |
5193 |
956 |
313 |
151 |
52 |
7 |
0 |
| OW |
0 |
0 |
30 |
118 |
104 |
54 |
19 |
0 |
| VODI |
0 |
0 |
8 |
65 |
185 |
95 |
26 |
0 |
| ODI |
0 |
0 |
1 |
33 |
177 |
267 |
348 |
0 |
| CDI |
0 |
0 |
0 |
32 |
70 |
118 |
1813 |
937 |
| VCDI |
0 |
0 |
0 |
17 |
10 |
16 |
825 |
1851 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24268 |
5193 |
945 |
323 |
168 |
70 |
14 |
0 |
| OW |
0 |
0 |
34 |
98 |
97 |
33 |
12 |
0 |
| VODI |
0 |
0 |
12 |
72 |
144 |
108 |
32 |
0 |
| ODI |
0 |
0 |
3 |
19 |
114 |
161 |
162 |
0 |
| CDI |
0 |
0 |
1 |
47 |
159 |
213 |
1819 |
577 |
| VCDI |
0 |
0 |
0 |
19 |
15 |
17 |
999 |
2211 |
|
Date: 2022-09-14:
| 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 |
24253 |
5213 |
849 |
398 |
181 |
14 |
2 |
0 |
| OW |
0 |
0 |
39 |
136 |
93 |
37 |
5 |
0 |
| VODI |
0 |
0 |
13 |
97 |
150 |
73 |
11 |
0 |
| ODI |
0 |
0 |
6 |
28 |
104 |
227 |
163 |
0 |
| CDI |
0 |
0 |
0 |
16 |
59 |
353 |
1693 |
794 |
| VCDI |
0 |
0 |
0 |
5 |
15 |
20 |
1048 |
2064 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24253 |
5211 |
804 |
371 |
201 |
43 |
7 |
0 |
| OW |
0 |
2 |
52 |
90 |
57 |
31 |
1 |
0 |
| VODI |
0 |
0 |
32 |
129 |
131 |
68 |
6 |
0 |
| ODI |
0 |
0 |
17 |
39 |
90 |
145 |
74 |
0 |
| CDI |
0 |
0 |
2 |
43 |
100 |
403 |
1554 |
462 |
| VCDI |
0 |
0 |
0 |
8 |
23 |
34 |
1280 |
2396 |
|
Date: 2022-09-16:
| 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 |
24150 |
5298 |
818 |
347 |
144 |
28 |
0 |
0 |
| OW |
0 |
1 |
66 |
144 |
63 |
36 |
2 |
0 |
| VODI |
0 |
0 |
29 |
110 |
132 |
72 |
15 |
0 |
| ODI |
0 |
0 |
13 |
46 |
130 |
190 |
98 |
0 |
| CDI |
0 |
0 |
0 |
11 |
87 |
312 |
1597 |
686 |
| VCDI |
0 |
0 |
0 |
5 |
17 |
27 |
1226 |
2259 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24150 |
5294 |
783 |
337 |
162 |
44 |
1 |
0 |
| OW |
0 |
5 |
63 |
84 |
44 |
30 |
8 |
0 |
| VODI |
0 |
0 |
55 |
133 |
106 |
63 |
12 |
0 |
| ODI |
0 |
0 |
22 |
64 |
94 |
136 |
44 |
0 |
| CDI |
0 |
0 |
3 |
35 |
122 |
278 |
1426 |
356 |
| VCDI |
0 |
0 |
0 |
10 |
45 |
114 |
1447 |
2589 |
|
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