Validation of sea ice concentration
Bulletin date: 2020-10-08
Model vs. observations, sea ice class contingency tables
Date: 2020-10-02:
| 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 |
24499 |
6264 |
565 |
366 |
75 |
33 |
8 |
0 |
| OW |
0 |
8 |
14 |
74 |
76 |
40 |
12 |
0 |
| VODI |
0 |
2 |
8 |
54 |
71 |
99 |
51 |
0 |
| ODI |
0 |
0 |
3 |
13 |
65 |
112 |
91 |
0 |
| CDI |
0 |
0 |
1 |
9 |
43 |
145 |
196 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
19 |
303 |
3117 |
1722 |
|
...date precedes bulletin
|
Date: 2020-10-06:
| 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 |
24290 |
6177 |
760 |
365 |
97 |
20 |
6 |
0 |
| OW |
0 |
0 |
31 |
78 |
50 |
44 |
17 |
0 |
| VODI |
0 |
0 |
8 |
46 |
82 |
85 |
68 |
0 |
| ODI |
0 |
0 |
0 |
20 |
45 |
54 |
137 |
0 |
| CDI |
0 |
0 |
0 |
7 |
45 |
78 |
385 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
31 |
189 |
2467 |
2471 |
|
...date precedes bulletin
|
Date: 2020-10-08:
| 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 |
24474 |
5968 |
681 |
359 |
90 |
39 |
7 |
0 |
| OW |
0 |
5 |
53 |
57 |
42 |
47 |
16 |
0 |
| VODI |
0 |
1 |
19 |
50 |
61 |
105 |
61 |
0 |
| ODI |
0 |
0 |
5 |
21 |
33 |
86 |
109 |
0 |
| CDI |
0 |
0 |
0 |
12 |
37 |
102 |
277 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
23 |
218 |
2795 |
2302 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24474 |
5968 |
699 |
349 |
82 |
28 |
7 |
0 |
| OW |
0 |
5 |
36 |
75 |
48 |
46 |
7 |
0 |
| VODI |
0 |
1 |
18 |
47 |
61 |
116 |
59 |
0 |
| ODI |
0 |
0 |
5 |
14 |
39 |
82 |
110 |
0 |
| CDI |
0 |
0 |
0 |
13 |
33 |
111 |
322 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
23 |
214 |
2760 |
2302 |
|
Date: 2020-10-12:
| 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 |
24056 |
5644 |
634 |
540 |
247 |
63 |
6 |
0 |
| OW |
0 |
2 |
7 |
43 |
68 |
65 |
16 |
0 |
| VODI |
0 |
0 |
3 |
20 |
89 |
95 |
38 |
0 |
| ODI |
0 |
0 |
0 |
32 |
102 |
134 |
75 |
0 |
| CDI |
0 |
0 |
0 |
19 |
42 |
131 |
238 |
0 |
| VCDI |
0 |
0 |
0 |
87 |
62 |
216 |
2958 |
2427 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24056 |
5646 |
630 |
530 |
273 |
65 |
13 |
0 |
| OW |
0 |
0 |
9 |
53 |
87 |
85 |
27 |
0 |
| VODI |
0 |
0 |
4 |
17 |
66 |
107 |
83 |
0 |
| ODI |
0 |
0 |
1 |
25 |
69 |
103 |
75 |
0 |
| CDI |
0 |
0 |
0 |
26 |
42 |
109 |
110 |
0 |
| VCDI |
0 |
0 |
0 |
90 |
73 |
235 |
3023 |
2427 |
|
Date: 2020-10-14:
| 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 |
23814 |
5639 |
738 |
504 |
289 |
62 |
3 |
0 |
| OW |
0 |
6 |
17 |
16 |
88 |
77 |
13 |
0 |
| VODI |
0 |
2 |
13 |
19 |
67 |
110 |
42 |
0 |
| ODI |
0 |
0 |
5 |
27 |
76 |
111 |
72 |
0 |
| CDI |
0 |
0 |
4 |
11 |
63 |
154 |
197 |
0 |
| VCDI |
0 |
0 |
0 |
30 |
73 |
184 |
3226 |
2407 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23814 |
5633 |
714 |
469 |
323 |
96 |
10 |
0 |
| OW |
0 |
8 |
35 |
47 |
78 |
79 |
21 |
0 |
| VODI |
0 |
6 |
14 |
24 |
55 |
117 |
86 |
0 |
| ODI |
0 |
0 |
8 |
18 |
52 |
85 |
91 |
0 |
| CDI |
0 |
0 |
5 |
18 |
52 |
112 |
139 |
0 |
| VCDI |
0 |
0 |
1 |
31 |
96 |
209 |
3206 |
2407 |
|
Date: 2020-10-16:
| 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 |
23606 |
5660 |
668 |
638 |
224 |
87 |
8 |
0 |
| OW |
0 |
9 |
20 |
36 |
69 |
87 |
16 |
0 |
| VODI |
0 |
7 |
9 |
10 |
31 |
139 |
47 |
0 |
| ODI |
0 |
2 |
6 |
11 |
35 |
114 |
95 |
0 |
| CDI |
0 |
0 |
1 |
11 |
25 |
159 |
158 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
65 |
234 |
3008 |
2860 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23606 |
5639 |
638 |
594 |
235 |
103 |
17 |
0 |
| OW |
0 |
25 |
41 |
73 |
67 |
91 |
22 |
0 |
| VODI |
0 |
10 |
15 |
16 |
30 |
140 |
85 |
0 |
| ODI |
0 |
4 |
7 |
10 |
23 |
108 |
88 |
0 |
| CDI |
0 |
0 |
3 |
8 |
24 |
158 |
174 |
1 |
| VCDI |
0 |
0 |
0 |
9 |
70 |
220 |
2946 |
2859 |
|
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