Validation of sea ice concentration
Bulletin date: 2019-10-24
Model vs. observations, sea ice class contingency tables
Date: 2019-10-18:
| 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 |
21228 |
6572 |
733 |
413 |
293 |
169 |
87 |
0 |
| OW |
0 |
119 |
164 |
114 |
83 |
38 |
62 |
0 |
| VODI |
0 |
2 |
54 |
65 |
137 |
85 |
114 |
0 |
| ODI |
0 |
0 |
22 |
31 |
37 |
82 |
170 |
0 |
| CDI |
0 |
0 |
0 |
7 |
18 |
67 |
323 |
23 |
| VCDI |
0 |
0 |
0 |
2 |
21 |
164 |
2645 |
4015 |
|
...date precedes bulletin
|
Date: 2019-10-22:
| 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 |
21136 |
6444 |
847 |
359 |
163 |
119 |
103 |
0 |
| OW |
0 |
35 |
127 |
63 |
58 |
71 |
40 |
0 |
| VODI |
0 |
4 |
46 |
59 |
91 |
130 |
58 |
0 |
| ODI |
0 |
0 |
10 |
31 |
38 |
82 |
89 |
4 |
| CDI |
0 |
0 |
6 |
16 |
31 |
64 |
165 |
39 |
| VCDI |
0 |
0 |
2 |
8 |
22 |
279 |
3004 |
4316 |
|
...date precedes bulletin
|
Date: 2019-10-24:
| 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 |
20913 |
6698 |
595 |
362 |
113 |
60 |
47 |
0 |
| OW |
0 |
86 |
154 |
103 |
68 |
45 |
30 |
0 |
| VODI |
0 |
16 |
96 |
97 |
84 |
120 |
28 |
0 |
| ODI |
0 |
2 |
17 |
71 |
57 |
109 |
36 |
0 |
| CDI |
0 |
1 |
10 |
31 |
55 |
105 |
93 |
0 |
| VCDI |
0 |
0 |
11 |
40 |
108 |
584 |
3712 |
3402 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20911 |
6734 |
637 |
360 |
117 |
85 |
78 |
0 |
| OW |
2 |
55 |
132 |
94 |
65 |
49 |
6 |
0 |
| VODI |
0 |
12 |
77 |
100 |
83 |
107 |
24 |
0 |
| ODI |
0 |
0 |
17 |
73 |
61 |
91 |
28 |
0 |
| CDI |
0 |
1 |
8 |
34 |
52 |
107 |
94 |
0 |
| VCDI |
0 |
1 |
12 |
43 |
107 |
584 |
3716 |
3402 |
|
Date: 2019-10-28:
| 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 |
19788 |
6545 |
960 |
586 |
320 |
47 |
4 |
0 |
| OW |
0 |
26 |
85 |
157 |
109 |
58 |
16 |
0 |
| VODI |
0 |
8 |
40 |
126 |
118 |
98 |
52 |
0 |
| ODI |
0 |
1 |
12 |
25 |
69 |
186 |
96 |
0 |
| CDI |
0 |
1 |
9 |
26 |
56 |
241 |
284 |
0 |
| VCDI |
0 |
3 |
3 |
22 |
62 |
574 |
4170 |
3176 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19788 |
6499 |
750 |
498 |
365 |
72 |
36 |
0 |
| OW |
0 |
71 |
229 |
183 |
106 |
64 |
52 |
0 |
| VODI |
0 |
9 |
89 |
149 |
87 |
178 |
71 |
0 |
| ODI |
0 |
1 |
17 |
43 |
42 |
180 |
89 |
0 |
| CDI |
0 |
0 |
14 |
39 |
59 |
107 |
173 |
0 |
| VCDI |
0 |
4 |
10 |
30 |
75 |
603 |
4201 |
3176 |
|
Date: 2019-10-30:
| 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 |
19525 |
6497 |
682 |
687 |
241 |
76 |
0 |
0 |
| OW |
0 |
86 |
116 |
296 |
165 |
37 |
7 |
0 |
| VODI |
0 |
13 |
44 |
127 |
196 |
90 |
22 |
0 |
| ODI |
0 |
0 |
20 |
66 |
114 |
156 |
42 |
0 |
| CDI |
0 |
1 |
5 |
34 |
75 |
222 |
166 |
0 |
| VCDI |
0 |
4 |
2 |
21 |
89 |
520 |
3947 |
3768 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19525 |
6450 |
585 |
627 |
337 |
93 |
5 |
0 |
| OW |
0 |
106 |
150 |
249 |
202 |
48 |
23 |
0 |
| VODI |
0 |
39 |
90 |
235 |
119 |
175 |
52 |
0 |
| ODI |
0 |
1 |
25 |
53 |
55 |
162 |
61 |
0 |
| CDI |
0 |
0 |
16 |
39 |
74 |
193 |
119 |
0 |
| VCDI |
0 |
5 |
3 |
28 |
93 |
430 |
3924 |
3768 |
|
Date: 2019-11-01:
| 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 |
18959 |
6563 |
595 |
337 |
343 |
164 |
100 |
0 |
| OW |
0 |
64 |
91 |
161 |
182 |
249 |
225 |
0 |
| VODI |
0 |
1 |
45 |
81 |
93 |
114 |
275 |
0 |
| ODI |
0 |
1 |
4 |
37 |
57 |
62 |
253 |
9 |
| CDI |
0 |
0 |
1 |
24 |
41 |
51 |
354 |
62 |
| VCDI |
0 |
0 |
4 |
14 |
73 |
212 |
3267 |
4991 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18959 |
6516 |
496 |
305 |
336 |
216 |
168 |
0 |
| OW |
0 |
103 |
156 |
147 |
146 |
136 |
326 |
0 |
| VODI |
0 |
9 |
61 |
115 |
142 |
179 |
384 |
13 |
| ODI |
0 |
1 |
16 |
38 |
40 |
45 |
240 |
68 |
| CDI |
0 |
0 |
7 |
32 |
44 |
51 |
202 |
89 |
| VCDI |
0 |
0 |
4 |
17 |
81 |
225 |
3154 |
4892 |
|
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