Validation of sea ice concentration
Bulletin date: 2018-10-11
Model vs. observations, sea ice class contingency tables
Date: 2018-10-05:
| 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 |
24534 |
6046 |
459 |
300 |
132 |
27 |
1 |
0 |
| OW |
0 |
3 |
45 |
46 |
90 |
31 |
5 |
0 |
| VODI |
0 |
0 |
15 |
41 |
73 |
74 |
7 |
0 |
| ODI |
0 |
0 |
2 |
14 |
51 |
75 |
73 |
1 |
| CDI |
0 |
0 |
0 |
7 |
31 |
127 |
303 |
3 |
| VCDI |
0 |
0 |
0 |
2 |
5 |
119 |
2598 |
2819 |
|
...date precedes bulletin
|
Date: 2018-10-09:
| 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 |
23664 |
5365 |
1734 |
348 |
160 |
18 |
3 |
0 |
| OW |
0 |
0 |
15 |
46 |
71 |
35 |
11 |
0 |
| VODI |
0 |
0 |
4 |
21 |
73 |
80 |
19 |
0 |
| ODI |
0 |
0 |
0 |
16 |
50 |
129 |
48 |
1 |
| CDI |
0 |
0 |
1 |
17 |
38 |
221 |
311 |
4 |
| VCDI |
0 |
0 |
0 |
17 |
25 |
244 |
3000 |
2370 |
|
...date precedes bulletin
|
Date: 2018-10-11:
| 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 |
24266 |
5696 |
630 |
378 |
162 |
42 |
7 |
0 |
| OW |
0 |
0 |
29 |
46 |
80 |
32 |
7 |
0 |
| VODI |
0 |
0 |
6 |
34 |
59 |
72 |
35 |
0 |
| ODI |
0 |
0 |
0 |
20 |
29 |
81 |
54 |
0 |
| CDI |
0 |
0 |
0 |
6 |
24 |
167 |
314 |
12 |
| VCDI |
0 |
0 |
0 |
0 |
38 |
266 |
2757 |
2810 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24266 |
5696 |
630 |
383 |
170 |
43 |
7 |
0 |
| OW |
0 |
0 |
30 |
44 |
64 |
30 |
7 |
0 |
| VODI |
0 |
0 |
5 |
34 |
62 |
65 |
31 |
0 |
| ODI |
0 |
0 |
0 |
18 |
36 |
87 |
55 |
0 |
| CDI |
0 |
0 |
0 |
5 |
21 |
171 |
322 |
11 |
| VCDI |
0 |
0 |
0 |
0 |
39 |
264 |
2752 |
2811 |
|
Date: 2018-10-15:
| 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 |
24605 |
5779 |
615 |
235 |
83 |
17 |
2 |
0 |
| OW |
0 |
10 |
87 |
86 |
53 |
13 |
2 |
0 |
| VODI |
0 |
0 |
36 |
79 |
75 |
38 |
15 |
0 |
| ODI |
0 |
0 |
2 |
25 |
73 |
80 |
67 |
0 |
| CDI |
0 |
0 |
0 |
7 |
54 |
129 |
253 |
0 |
| VCDI |
0 |
0 |
0 |
10 |
99 |
299 |
2491 |
2740 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24605 |
5777 |
554 |
229 |
99 |
21 |
1 |
0 |
| OW |
0 |
11 |
105 |
57 |
31 |
14 |
0 |
0 |
| VODI |
0 |
1 |
60 |
75 |
45 |
36 |
18 |
0 |
| ODI |
0 |
0 |
21 |
45 |
72 |
53 |
60 |
0 |
| CDI |
0 |
0 |
0 |
24 |
69 |
106 |
200 |
0 |
| VCDI |
0 |
0 |
0 |
12 |
121 |
346 |
2551 |
2740 |
|
Date: 2018-10-17:
| 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 |
24102 |
6413 |
433 |
277 |
78 |
13 |
2 |
0 |
| OW |
0 |
65 |
53 |
108 |
37 |
9 |
3 |
0 |
| VODI |
0 |
20 |
48 |
56 |
64 |
24 |
15 |
0 |
| ODI |
0 |
2 |
28 |
44 |
57 |
59 |
53 |
0 |
| CDI |
0 |
0 |
6 |
27 |
93 |
123 |
244 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
106 |
280 |
2702 |
2515 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24102 |
6317 |
411 |
237 |
78 |
14 |
3 |
0 |
| OW |
0 |
116 |
45 |
65 |
18 |
8 |
1 |
0 |
| VODI |
0 |
58 |
58 |
81 |
30 |
26 |
17 |
0 |
| ODI |
0 |
9 |
33 |
70 |
48 |
45 |
66 |
0 |
| CDI |
0 |
0 |
18 |
53 |
104 |
91 |
174 |
0 |
| VCDI |
0 |
0 |
3 |
6 |
157 |
324 |
2758 |
2515 |
|
Date: 2018-10-19:
| 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 |
24128 |
6093 |
475 |
236 |
122 |
38 |
1 |
0 |
| OW |
0 |
83 |
66 |
81 |
93 |
28 |
1 |
0 |
| VODI |
0 |
17 |
23 |
68 |
88 |
41 |
23 |
0 |
| ODI |
0 |
9 |
13 |
41 |
70 |
47 |
47 |
0 |
| CDI |
0 |
2 |
11 |
29 |
100 |
152 |
243 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
163 |
327 |
2497 |
2702 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
24128 |
6052 |
427 |
209 |
135 |
50 |
1 |
0 |
| OW |
0 |
55 |
51 |
58 |
59 |
13 |
7 |
0 |
| VODI |
0 |
49 |
43 |
55 |
60 |
26 |
22 |
0 |
| ODI |
0 |
25 |
34 |
73 |
59 |
39 |
32 |
0 |
| CDI |
0 |
17 |
20 |
50 |
118 |
108 |
121 |
0 |
| VCDI |
0 |
6 |
13 |
11 |
205 |
397 |
2629 |
2702 |
|
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