Validation of sea ice concentration
Bulletin date: 2019-01-31
Model vs. observations, sea ice class contingency tables
Date: 2019-01-25:
| 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 |
14334 |
6126 |
838 |
339 |
146 |
57 |
19 |
0 |
| OW |
0 |
72 |
177 |
142 |
83 |
86 |
38 |
0 |
| VODI |
0 |
30 |
153 |
149 |
94 |
123 |
101 |
0 |
| ODI |
0 |
8 |
112 |
111 |
72 |
108 |
237 |
1 |
| CDI |
0 |
7 |
28 |
72 |
53 |
147 |
724 |
42 |
| VCDI |
0 |
0 |
7 |
36 |
64 |
275 |
7572 |
5376 |
|
...date precedes bulletin
|
Date: 2019-01-29:
| 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 |
14367 |
6130 |
915 |
303 |
62 |
10 |
5 |
0 |
| OW |
0 |
66 |
213 |
142 |
71 |
47 |
14 |
0 |
| VODI |
0 |
19 |
162 |
188 |
85 |
78 |
40 |
0 |
| ODI |
0 |
2 |
76 |
149 |
106 |
111 |
90 |
3 |
| CDI |
0 |
0 |
43 |
107 |
120 |
184 |
420 |
14 |
| VCDI |
0 |
0 |
18 |
33 |
119 |
365 |
8250 |
5032 |
|
...date precedes bulletin
|
Date: 2019-01-31:
| 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 |
14611 |
5974 |
802 |
174 |
90 |
21 |
8 |
0 |
| OW |
0 |
114 |
259 |
113 |
73 |
35 |
15 |
0 |
| VODI |
0 |
22 |
214 |
151 |
85 |
74 |
45 |
1 |
| ODI |
0 |
1 |
108 |
116 |
90 |
133 |
114 |
2 |
| CDI |
0 |
2 |
62 |
113 |
104 |
202 |
422 |
12 |
| VCDI |
0 |
0 |
47 |
96 |
179 |
640 |
7893 |
4942 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14611 |
5963 |
857 |
182 |
95 |
27 |
12 |
0 |
| OW |
0 |
116 |
216 |
106 |
75 |
31 |
19 |
0 |
| VODI |
0 |
32 |
198 |
167 |
84 |
81 |
43 |
0 |
| ODI |
0 |
1 |
103 |
103 |
82 |
130 |
117 |
2 |
| CDI |
0 |
1 |
60 |
106 |
107 |
174 |
429 |
11 |
| VCDI |
0 |
0 |
58 |
99 |
178 |
662 |
7877 |
4944 |
|
Date: 2019-02-04:
| 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 |
14698 |
6293 |
590 |
212 |
39 |
27 |
0 |
0 |
| OW |
1 |
183 |
244 |
157 |
34 |
31 |
3 |
0 |
| VODI |
0 |
92 |
198 |
234 |
118 |
78 |
34 |
0 |
| ODI |
0 |
72 |
89 |
262 |
135 |
130 |
104 |
1 |
| CDI |
0 |
127 |
66 |
227 |
143 |
253 |
477 |
37 |
| VCDI |
0 |
57 |
31 |
101 |
149 |
470 |
6089 |
5873 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14699 |
6106 |
487 |
183 |
38 |
34 |
0 |
0 |
| OW |
0 |
229 |
194 |
84 |
24 |
24 |
3 |
0 |
| VODI |
0 |
132 |
194 |
189 |
54 |
48 |
24 |
0 |
| ODI |
0 |
99 |
118 |
159 |
98 |
80 |
60 |
1 |
| CDI |
0 |
102 |
100 |
183 |
121 |
210 |
397 |
26 |
| VCDI |
0 |
156 |
125 |
395 |
283 |
593 |
6223 |
5884 |
|
Date: 2019-02-06:
| 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 |
14241 |
6570 |
648 |
276 |
61 |
9 |
0 |
0 |
| OW |
2 |
150 |
211 |
175 |
52 |
21 |
2 |
0 |
| VODI |
0 |
99 |
195 |
221 |
97 |
52 |
20 |
0 |
| ODI |
0 |
31 |
113 |
230 |
211 |
139 |
84 |
0 |
| CDI |
0 |
16 |
71 |
193 |
205 |
265 |
421 |
30 |
| VCDI |
0 |
8 |
52 |
164 |
272 |
635 |
7243 |
4674 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14243 |
6428 |
483 |
194 |
62 |
22 |
1 |
0 |
| OW |
0 |
184 |
224 |
101 |
23 |
19 |
5 |
0 |
| VODI |
0 |
140 |
239 |
231 |
72 |
40 |
20 |
0 |
| ODI |
0 |
53 |
133 |
185 |
143 |
93 |
72 |
1 |
| CDI |
0 |
33 |
97 |
189 |
146 |
213 |
430 |
34 |
| VCDI |
0 |
36 |
114 |
359 |
452 |
734 |
7242 |
4669 |
|
Date: 2019-02-08:
| 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 |
14223 |
6459 |
558 |
262 |
67 |
21 |
3 |
0 |
| OW |
1 |
125 |
263 |
129 |
47 |
22 |
5 |
0 |
| VODI |
1 |
82 |
189 |
208 |
98 |
51 |
24 |
0 |
| ODI |
0 |
45 |
89 |
200 |
154 |
119 |
95 |
1 |
| CDI |
0 |
22 |
69 |
182 |
184 |
228 |
380 |
71 |
| VCDI |
0 |
13 |
85 |
204 |
374 |
539 |
7179 |
5088 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14224 |
6330 |
471 |
221 |
62 |
25 |
5 |
0 |
| OW |
1 |
170 |
191 |
117 |
32 |
19 |
7 |
0 |
| VODI |
0 |
115 |
243 |
171 |
88 |
35 |
25 |
0 |
| ODI |
0 |
51 |
127 |
198 |
110 |
52 |
67 |
0 |
| CDI |
0 |
41 |
88 |
140 |
148 |
180 |
364 |
41 |
| VCDI |
0 |
39 |
133 |
338 |
484 |
669 |
7218 |
5119 |
|
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