Validation of sea ice concentration
Bulletin date: 2018-12-27
Model vs. observations, sea ice class contingency tables
Date: 2018-12-21:
| 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 |
16955 |
6962 |
727 |
355 |
72 |
29 |
53 |
0 |
| OW |
6 |
124 |
187 |
135 |
67 |
28 |
31 |
0 |
| VODI |
0 |
78 |
141 |
168 |
125 |
62 |
74 |
0 |
| ODI |
0 |
42 |
90 |
126 |
135 |
101 |
60 |
0 |
| CDI |
0 |
14 |
78 |
96 |
112 |
179 |
237 |
38 |
| VCDI |
0 |
0 |
63 |
131 |
158 |
615 |
5661 |
3844 |
|
...date precedes bulletin
|
Date: 2018-12-25:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2018-12-27:
| 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 |
15986 |
6801 |
1456 |
495 |
105 |
54 |
48 |
0 |
| OW |
0 |
57 |
384 |
180 |
55 |
20 |
18 |
0 |
| VODI |
0 |
13 |
241 |
287 |
123 |
47 |
36 |
2 |
| ODI |
0 |
1 |
76 |
145 |
145 |
116 |
99 |
16 |
| CDI |
0 |
3 |
38 |
97 |
131 |
153 |
279 |
40 |
| VCDI |
0 |
0 |
11 |
75 |
146 |
414 |
5189 |
4577 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15986 |
6808 |
1497 |
520 |
107 |
52 |
51 |
0 |
| OW |
0 |
54 |
366 |
167 |
59 |
24 |
13 |
0 |
| VODI |
0 |
10 |
221 |
278 |
133 |
51 |
37 |
2 |
| ODI |
0 |
0 |
75 |
152 |
127 |
102 |
101 |
18 |
| CDI |
0 |
3 |
35 |
92 |
129 |
148 |
254 |
39 |
| VCDI |
0 |
0 |
12 |
70 |
150 |
427 |
5213 |
4576 |
|
Date: 2018-12-31:
| 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 |
15211 |
7130 |
1262 |
842 |
176 |
138 |
21 |
0 |
| OW |
0 |
20 |
113 |
357 |
44 |
56 |
9 |
0 |
| VODI |
0 |
0 |
36 |
349 |
141 |
143 |
32 |
0 |
| ODI |
0 |
0 |
7 |
174 |
133 |
162 |
136 |
28 |
| CDI |
0 |
0 |
0 |
71 |
125 |
264 |
326 |
85 |
| VCDI |
0 |
0 |
5 |
22 |
57 |
842 |
5272 |
4370 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15211 |
6944 |
920 |
627 |
170 |
154 |
31 |
0 |
| OW |
0 |
165 |
273 |
301 |
59 |
52 |
13 |
0 |
| VODI |
0 |
36 |
151 |
347 |
91 |
83 |
27 |
0 |
| ODI |
0 |
5 |
58 |
233 |
104 |
167 |
86 |
22 |
| CDI |
0 |
0 |
16 |
212 |
143 |
188 |
259 |
93 |
| VCDI |
0 |
0 |
5 |
95 |
109 |
961 |
5380 |
4368 |
|
Date: 2019-01-02:
| 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 |
14838 |
6837 |
1188 |
860 |
265 |
97 |
14 |
0 |
| OW |
7 |
45 |
95 |
312 |
203 |
91 |
11 |
0 |
| VODI |
1 |
38 |
39 |
225 |
231 |
156 |
22 |
0 |
| ODI |
1 |
13 |
8 |
86 |
195 |
237 |
58 |
1 |
| CDI |
0 |
7 |
1 |
36 |
181 |
401 |
240 |
54 |
| VCDI |
0 |
0 |
5 |
8 |
115 |
1097 |
5364 |
4476 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14831 |
6654 |
913 |
580 |
182 |
105 |
24 |
0 |
| OW |
8 |
173 |
226 |
310 |
158 |
83 |
13 |
0 |
| VODI |
6 |
79 |
131 |
331 |
286 |
136 |
18 |
0 |
| ODI |
1 |
24 |
48 |
168 |
146 |
176 |
52 |
21 |
| CDI |
1 |
9 |
13 |
108 |
191 |
308 |
272 |
61 |
| VCDI |
0 |
1 |
5 |
30 |
227 |
1271 |
5330 |
4449 |
|
Date: 2019-01-04:
| 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 |
14591 |
6630 |
1398 |
637 |
290 |
155 |
53 |
0 |
| OW |
0 |
16 |
193 |
202 |
179 |
126 |
41 |
0 |
| VODI |
0 |
0 |
73 |
157 |
240 |
242 |
82 |
0 |
| ODI |
0 |
0 |
16 |
71 |
162 |
190 |
102 |
0 |
| CDI |
0 |
0 |
2 |
31 |
132 |
400 |
365 |
25 |
| VCDI |
0 |
0 |
6 |
7 |
49 |
442 |
5367 |
5487 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14591 |
6524 |
989 |
386 |
148 |
51 |
46 |
0 |
| OW |
0 |
76 |
350 |
203 |
142 |
91 |
38 |
0 |
| VODI |
0 |
46 |
252 |
263 |
280 |
210 |
64 |
0 |
| ODI |
0 |
0 |
55 |
124 |
205 |
244 |
110 |
0 |
| CDI |
0 |
0 |
32 |
81 |
150 |
268 |
300 |
25 |
| VCDI |
0 |
0 |
10 |
48 |
127 |
691 |
5452 |
5487 |
|
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