Validation of sea ice concentration
Bulletin date: 2020-11-19
Model vs. observations, sea ice class contingency tables
Date: 2020-11-13:
| 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 |
19910 |
7313 |
824 |
243 |
114 |
107 |
51 |
0 |
| OW |
0 |
93 |
202 |
161 |
65 |
39 |
45 |
0 |
| VODI |
0 |
14 |
131 |
153 |
97 |
91 |
55 |
0 |
| ODI |
0 |
4 |
48 |
78 |
98 |
103 |
57 |
0 |
| CDI |
0 |
1 |
19 |
50 |
95 |
196 |
284 |
23 |
| VCDI |
0 |
0 |
5 |
8 |
60 |
411 |
3750 |
3161 |
|
...date precedes bulletin
|
Date: 2020-11-17:
| 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 |
19203 |
7561 |
1293 |
404 |
128 |
103 |
21 |
0 |
| OW |
0 |
15 |
145 |
141 |
63 |
50 |
7 |
0 |
| VODI |
0 |
0 |
105 |
115 |
116 |
75 |
29 |
0 |
| ODI |
0 |
0 |
28 |
80 |
86 |
171 |
86 |
6 |
| CDI |
0 |
0 |
9 |
28 |
66 |
222 |
279 |
96 |
| VCDI |
0 |
0 |
4 |
12 |
94 |
242 |
3714 |
3362 |
|
...date precedes bulletin
|
Date: 2020-11-19:
| 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 |
18697 |
7723 |
1214 |
355 |
75 |
102 |
32 |
0 |
| OW |
0 |
89 |
284 |
185 |
55 |
28 |
6 |
0 |
| VODI |
0 |
16 |
77 |
176 |
114 |
50 |
21 |
0 |
| ODI |
0 |
5 |
30 |
67 |
104 |
102 |
81 |
0 |
| CDI |
0 |
0 |
46 |
52 |
58 |
211 |
286 |
7 |
| VCDI |
0 |
0 |
10 |
28 |
62 |
366 |
4125 |
3220 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18697 |
7741 |
1279 |
406 |
84 |
97 |
34 |
0 |
| OW |
0 |
61 |
183 |
133 |
52 |
36 |
8 |
0 |
| VODI |
0 |
26 |
111 |
168 |
108 |
56 |
19 |
0 |
| ODI |
0 |
5 |
25 |
75 |
105 |
103 |
87 |
0 |
| CDI |
0 |
0 |
40 |
45 |
52 |
185 |
298 |
7 |
| VCDI |
0 |
0 |
23 |
36 |
67 |
382 |
4105 |
3220 |
|
Date: 2020-11-23:
| 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 |
18762 |
7162 |
981 |
622 |
166 |
80 |
39 |
0 |
| OW |
0 |
19 |
104 |
254 |
105 |
51 |
9 |
0 |
| VODI |
0 |
11 |
36 |
219 |
191 |
86 |
21 |
0 |
| ODI |
0 |
3 |
8 |
112 |
260 |
119 |
37 |
0 |
| CDI |
0 |
1 |
12 |
57 |
209 |
205 |
167 |
0 |
| VCDI |
0 |
0 |
5 |
19 |
97 |
363 |
3844 |
3723 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18762 |
7039 |
786 |
538 |
217 |
112 |
46 |
0 |
| OW |
0 |
125 |
212 |
247 |
114 |
38 |
13 |
0 |
| VODI |
0 |
25 |
112 |
309 |
165 |
54 |
13 |
0 |
| ODI |
0 |
6 |
16 |
101 |
176 |
115 |
32 |
0 |
| CDI |
0 |
1 |
15 |
56 |
187 |
158 |
113 |
5 |
| VCDI |
0 |
0 |
5 |
32 |
169 |
427 |
3900 |
3718 |
|
Date: 2020-11-25:
| 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 |
18786 |
7251 |
1041 |
420 |
94 |
66 |
39 |
0 |
| OW |
1 |
30 |
169 |
267 |
66 |
33 |
6 |
0 |
| VODI |
0 |
12 |
61 |
246 |
160 |
47 |
22 |
0 |
| ODI |
0 |
3 |
24 |
114 |
171 |
103 |
47 |
0 |
| CDI |
0 |
1 |
8 |
59 |
225 |
241 |
197 |
0 |
| VCDI |
0 |
0 |
5 |
35 |
80 |
322 |
4753 |
2954 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18786 |
7105 |
760 |
382 |
167 |
89 |
41 |
0 |
| OW |
1 |
136 |
287 |
237 |
85 |
34 |
14 |
0 |
| VODI |
0 |
42 |
174 |
280 |
106 |
74 |
24 |
0 |
| ODI |
0 |
10 |
39 |
129 |
139 |
109 |
42 |
0 |
| CDI |
0 |
4 |
24 |
59 |
178 |
164 |
114 |
0 |
| VCDI |
0 |
0 |
24 |
54 |
121 |
342 |
4829 |
2954 |
|
Date: 2020-11-27:
| 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 |
17813 |
7917 |
1164 |
428 |
161 |
49 |
64 |
0 |
| OW |
0 |
35 |
211 |
199 |
128 |
86 |
33 |
0 |
| VODI |
0 |
16 |
85 |
161 |
125 |
152 |
51 |
0 |
| ODI |
0 |
5 |
24 |
116 |
74 |
157 |
81 |
0 |
| CDI |
0 |
5 |
12 |
60 |
95 |
193 |
317 |
0 |
| VCDI |
0 |
1 |
15 |
40 |
53 |
184 |
5008 |
2841 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17813 |
7802 |
964 |
344 |
114 |
124 |
105 |
0 |
| OW |
0 |
109 |
241 |
186 |
107 |
76 |
24 |
0 |
| VODI |
0 |
43 |
183 |
184 |
175 |
146 |
52 |
0 |
| ODI |
0 |
12 |
64 |
118 |
78 |
97 |
71 |
0 |
| CDI |
0 |
7 |
35 |
93 |
79 |
136 |
207 |
0 |
| VCDI |
0 |
6 |
24 |
79 |
83 |
242 |
5095 |
2841 |
|
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