Validation of sea ice concentration
Bulletin date: 2017-05-04
Model vs. observations, sea ice class contingency tables
Date: 2017-04-28:
| 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 |
13019 |
6090 |
1109 |
433 |
193 |
63 |
32 |
0 |
| OW |
0 |
28 |
163 |
144 |
96 |
69 |
52 |
0 |
| VODI |
0 |
4 |
102 |
118 |
99 |
104 |
129 |
0 |
| ODI |
0 |
0 |
16 |
61 |
86 |
124 |
233 |
0 |
| CDI |
0 |
0 |
2 |
42 |
94 |
278 |
846 |
6 |
| VCDI |
0 |
0 |
0 |
18 |
51 |
490 |
8570 |
5195 |
|
...date precedes bulletin
|
Date: 2017-05-02:
| 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 |
13985 |
5731 |
1067 |
413 |
122 |
54 |
26 |
0 |
| OW |
0 |
20 |
149 |
112 |
89 |
34 |
31 |
0 |
| VODI |
0 |
1 |
90 |
80 |
135 |
77 |
118 |
0 |
| ODI |
0 |
0 |
20 |
49 |
99 |
138 |
251 |
0 |
| CDI |
0 |
0 |
20 |
28 |
130 |
305 |
983 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
84 |
492 |
9176 |
4034 |
|
...date precedes bulletin
|
Date: 2017-05-04:
| 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 |
13671 |
5881 |
1218 |
461 |
117 |
44 |
19 |
0 |
| OW |
0 |
7 |
122 |
161 |
76 |
61 |
36 |
0 |
| VODI |
0 |
0 |
63 |
126 |
116 |
90 |
139 |
0 |
| ODI |
0 |
0 |
25 |
68 |
183 |
124 |
257 |
0 |
| CDI |
0 |
0 |
17 |
38 |
242 |
406 |
1182 |
1 |
| VCDI |
0 |
0 |
13 |
35 |
92 |
458 |
8009 |
4601 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13671 |
5884 |
1252 |
469 |
119 |
52 |
25 |
0 |
| OW |
0 |
4 |
95 |
159 |
75 |
56 |
42 |
0 |
| VODI |
0 |
0 |
55 |
121 |
112 |
83 |
158 |
0 |
| ODI |
0 |
0 |
32 |
63 |
165 |
132 |
228 |
0 |
| CDI |
0 |
0 |
9 |
44 |
259 |
390 |
1199 |
2 |
| VCDI |
0 |
0 |
15 |
33 |
96 |
470 |
7990 |
4600 |
|
Date: 2017-05-08:
| 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 |
13381 |
6281 |
1090 |
510 |
95 |
41 |
18 |
0 |
| OW |
0 |
7 |
119 |
158 |
88 |
27 |
21 |
0 |
| VODI |
0 |
4 |
97 |
218 |
142 |
95 |
73 |
0 |
| ODI |
0 |
0 |
40 |
127 |
192 |
203 |
255 |
0 |
| CDI |
0 |
2 |
18 |
103 |
207 |
494 |
942 |
0 |
| VCDI |
0 |
0 |
476 |
112 |
267 |
703 |
7156 |
4397 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13381 |
6254 |
1003 |
529 |
114 |
55 |
57 |
0 |
| OW |
0 |
24 |
149 |
103 |
91 |
46 |
79 |
0 |
| VODI |
0 |
10 |
128 |
161 |
128 |
122 |
116 |
0 |
| ODI |
0 |
2 |
48 |
116 |
148 |
158 |
209 |
0 |
| CDI |
0 |
2 |
25 |
130 |
206 |
409 |
699 |
0 |
| VCDI |
0 |
2 |
487 |
189 |
304 |
773 |
7305 |
4397 |
|
Date: 2017-05-10:
| 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 |
13388 |
6246 |
1089 |
409 |
144 |
50 |
25 |
0 |
| OW |
0 |
13 |
117 |
169 |
91 |
63 |
47 |
0 |
| VODI |
0 |
3 |
31 |
183 |
172 |
123 |
123 |
0 |
| ODI |
0 |
1 |
21 |
96 |
119 |
191 |
297 |
0 |
| CDI |
0 |
2 |
8 |
76 |
163 |
362 |
672 |
0 |
| VCDI |
0 |
0 |
1 |
85 |
211 |
596 |
8102 |
4670 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13388 |
6203 |
1042 |
434 |
164 |
63 |
56 |
0 |
| OW |
0 |
35 |
124 |
134 |
92 |
84 |
123 |
0 |
| VODI |
0 |
14 |
66 |
123 |
155 |
136 |
158 |
0 |
| ODI |
0 |
7 |
18 |
108 |
105 |
164 |
197 |
0 |
| CDI |
0 |
4 |
14 |
74 |
145 |
275 |
596 |
0 |
| VCDI |
0 |
2 |
3 |
145 |
239 |
663 |
8136 |
4670 |
|
Date: 2017-05-12:
| 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 |
13464 |
6285 |
954 |
330 |
145 |
66 |
15 |
0 |
| OW |
0 |
25 |
127 |
129 |
99 |
79 |
48 |
0 |
| VODI |
0 |
1 |
96 |
132 |
205 |
145 |
131 |
0 |
| ODI |
0 |
0 |
17 |
51 |
145 |
167 |
293 |
0 |
| CDI |
0 |
0 |
10 |
26 |
156 |
233 |
853 |
2 |
| VCDI |
0 |
0 |
0 |
13 |
163 |
341 |
8511 |
4702 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13464 |
6264 |
932 |
363 |
172 |
79 |
65 |
0 |
| OW |
0 |
35 |
128 |
106 |
109 |
82 |
57 |
0 |
| VODI |
0 |
8 |
107 |
94 |
143 |
131 |
210 |
0 |
| ODI |
0 |
4 |
24 |
63 |
121 |
137 |
244 |
0 |
| CDI |
0 |
0 |
8 |
31 |
134 |
197 |
799 |
21 |
| VCDI |
0 |
0 |
5 |
24 |
234 |
405 |
8476 |
4683 |
|
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