Validation of sea ice concentration
Bulletin date: 2022-08-11
Model vs. observations, sea ice class contingency tables
Date: 2022-08-05:
| 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 |
19954 |
8806 |
1803 |
271 |
173 |
126 |
36 |
0 |
| OW |
0 |
1 |
93 |
75 |
68 |
59 |
45 |
0 |
| VODI |
0 |
0 |
39 |
76 |
102 |
136 |
151 |
0 |
| ODI |
0 |
0 |
0 |
9 |
58 |
89 |
603 |
205 |
| CDI |
0 |
0 |
0 |
9 |
32 |
61 |
2361 |
1665 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
13 |
630 |
409 |
|
...date precedes bulletin
|
Date: 2022-08-09:
| 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 |
21289 |
7670 |
1607 |
347 |
168 |
106 |
25 |
0 |
| OW |
0 |
0 |
83 |
85 |
73 |
32 |
33 |
0 |
| VODI |
0 |
0 |
33 |
83 |
115 |
130 |
97 |
0 |
| ODI |
0 |
0 |
1 |
17 |
88 |
109 |
441 |
1 |
| CDI |
0 |
0 |
0 |
17 |
46 |
63 |
2417 |
1892 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
7 |
602 |
478 |
|
...date precedes bulletin
|
Date: 2022-08-11:
| 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 |
20927 |
8275 |
1434 |
354 |
161 |
103 |
23 |
0 |
| OW |
0 |
0 |
69 |
76 |
74 |
35 |
40 |
0 |
| VODI |
0 |
0 |
20 |
74 |
123 |
135 |
118 |
0 |
| ODI |
0 |
0 |
1 |
27 |
57 |
98 |
421 |
6 |
| CDI |
0 |
0 |
0 |
26 |
43 |
76 |
2221 |
1806 |
| VCDI |
0 |
0 |
0 |
0 |
12 |
15 |
760 |
549 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20927 |
8275 |
1450 |
368 |
171 |
111 |
25 |
0 |
| OW |
0 |
0 |
53 |
70 |
66 |
28 |
39 |
0 |
| VODI |
0 |
0 |
20 |
64 |
113 |
125 |
113 |
0 |
| ODI |
0 |
0 |
1 |
29 |
65 |
98 |
405 |
14 |
| CDI |
0 |
0 |
0 |
26 |
47 |
90 |
2356 |
1802 |
| VCDI |
0 |
0 |
0 |
0 |
8 |
10 |
645 |
545 |
|
Date: 2022-08-15:
| 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 |
21366 |
8275 |
1134 |
168 |
164 |
103 |
11 |
0 |
| OW |
0 |
0 |
76 |
71 |
70 |
24 |
19 |
0 |
| VODI |
0 |
0 |
36 |
106 |
161 |
92 |
63 |
0 |
| ODI |
0 |
0 |
2 |
56 |
117 |
226 |
264 |
0 |
| CDI |
0 |
0 |
0 |
33 |
56 |
144 |
2119 |
855 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1 |
1029 |
1318 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21366 |
8275 |
1125 |
168 |
189 |
122 |
35 |
0 |
| OW |
0 |
0 |
60 |
63 |
56 |
23 |
34 |
0 |
| VODI |
0 |
0 |
59 |
86 |
133 |
82 |
106 |
0 |
| ODI |
0 |
0 |
4 |
82 |
115 |
149 |
338 |
34 |
| CDI |
0 |
0 |
0 |
32 |
73 |
210 |
2933 |
1455 |
| VCDI |
0 |
0 |
0 |
3 |
2 |
4 |
59 |
684 |
|
Date: 2022-08-17:
| 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 |
21695 |
7908 |
1153 |
220 |
147 |
118 |
20 |
0 |
| OW |
0 |
8 |
50 |
65 |
81 |
43 |
29 |
0 |
| VODI |
0 |
0 |
24 |
85 |
136 |
98 |
109 |
0 |
| ODI |
0 |
0 |
7 |
54 |
63 |
147 |
362 |
0 |
| CDI |
0 |
0 |
0 |
38 |
80 |
118 |
2254 |
912 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
1 |
877 |
1255 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21695 |
7909 |
1112 |
215 |
161 |
129 |
43 |
0 |
| OW |
0 |
7 |
60 |
53 |
61 |
42 |
38 |
0 |
| VODI |
0 |
0 |
58 |
85 |
120 |
81 |
126 |
0 |
| ODI |
0 |
0 |
4 |
33 |
65 |
108 |
429 |
45 |
| CDI |
0 |
0 |
0 |
76 |
97 |
156 |
2981 |
1686 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
9 |
34 |
436 |
|
Date: 2022-08-19:
| 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 |
21888 |
8020 |
964 |
261 |
121 |
51 |
7 |
0 |
| OW |
0 |
48 |
78 |
95 |
73 |
13 |
12 |
0 |
| VODI |
0 |
12 |
83 |
107 |
125 |
89 |
56 |
0 |
| ODI |
0 |
0 |
24 |
62 |
73 |
138 |
272 |
0 |
| CDI |
0 |
0 |
0 |
31 |
86 |
127 |
2063 |
961 |
| VCDI |
0 |
0 |
5 |
7 |
3 |
25 |
1113 |
1066 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21888 |
7837 |
921 |
271 |
175 |
76 |
8 |
0 |
| OW |
0 |
81 |
55 |
66 |
51 |
34 |
16 |
0 |
| VODI |
0 |
90 |
69 |
80 |
67 |
71 |
83 |
0 |
| ODI |
0 |
60 |
70 |
66 |
59 |
88 |
311 |
64 |
| CDI |
0 |
12 |
39 |
80 |
119 |
170 |
3044 |
1866 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
4 |
61 |
97 |
|
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