Validation of sea ice concentration
Bulletin date: 2016-04-07
Model vs. observations, sea ice class contingency tables
Date: 2016-04-01:
| 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 |
14325 |
6484 |
804 |
327 |
56 |
22 |
5 |
0 |
| OW |
0 |
146 |
238 |
139 |
90 |
40 |
11 |
0 |
| VODI |
0 |
180 |
170 |
139 |
134 |
43 |
42 |
0 |
| ODI |
0 |
99 |
99 |
115 |
136 |
98 |
126 |
0 |
| CDI |
0 |
76 |
123 |
128 |
151 |
185 |
621 |
1 |
| VCDI |
0 |
67 |
336 |
200 |
410 |
604 |
6609 |
4580 |
|
...date precedes bulletin
|
Date: 2016-04-05:
| 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 |
14095 |
6480 |
1103 |
362 |
130 |
49 |
13 |
0 |
| OW |
0 |
52 |
231 |
165 |
133 |
81 |
10 |
0 |
| VODI |
0 |
84 |
191 |
152 |
202 |
252 |
33 |
0 |
| ODI |
0 |
20 |
123 |
140 |
189 |
269 |
156 |
0 |
| CDI |
0 |
0 |
38 |
84 |
179 |
672 |
1009 |
5 |
| VCDI |
0 |
0 |
22 |
48 |
103 |
396 |
7083 |
3805 |
|
...date precedes bulletin
|
Date: 2016-04-07:
| 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 |
14239 |
6539 |
874 |
414 |
152 |
35 |
13 |
0 |
| OW |
0 |
99 |
198 |
229 |
144 |
78 |
19 |
0 |
| VODI |
0 |
68 |
175 |
173 |
184 |
171 |
34 |
0 |
| ODI |
0 |
79 |
103 |
94 |
169 |
227 |
157 |
0 |
| CDI |
0 |
5 |
82 |
80 |
143 |
482 |
807 |
18 |
| VCDI |
0 |
0 |
51 |
49 |
120 |
455 |
7045 |
4155 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14239 |
6546 |
886 |
441 |
193 |
71 |
15 |
0 |
| OW |
0 |
97 |
168 |
186 |
95 |
53 |
23 |
0 |
| VODI |
0 |
63 |
194 |
191 |
185 |
157 |
35 |
0 |
| ODI |
0 |
80 |
111 |
93 |
178 |
228 |
140 |
0 |
| CDI |
0 |
4 |
76 |
77 |
148 |
491 |
776 |
17 |
| VCDI |
0 |
0 |
48 |
51 |
113 |
448 |
7086 |
4156 |
|
Date: 2016-04-11:
| 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 |
14348 |
6416 |
904 |
352 |
120 |
36 |
5 |
0 |
| OW |
0 |
95 |
220 |
182 |
112 |
45 |
6 |
0 |
| VODI |
0 |
46 |
245 |
231 |
209 |
90 |
17 |
0 |
| ODI |
0 |
0 |
56 |
166 |
302 |
252 |
164 |
0 |
| CDI |
0 |
0 |
39 |
105 |
160 |
377 |
654 |
22 |
| VCDI |
0 |
0 |
12 |
29 |
64 |
369 |
7183 |
4526 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14348 |
6230 |
822 |
359 |
160 |
51 |
8 |
0 |
| OW |
0 |
159 |
172 |
133 |
91 |
49 |
11 |
0 |
| VODI |
0 |
96 |
195 |
142 |
130 |
85 |
55 |
0 |
| ODI |
0 |
39 |
93 |
135 |
173 |
136 |
115 |
0 |
| CDI |
0 |
28 |
86 |
109 |
242 |
318 |
527 |
12 |
| VCDI |
0 |
5 |
108 |
187 |
171 |
530 |
7313 |
4536 |
|
Date: 2016-04-13:
| 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 |
13857 |
6556 |
982 |
508 |
118 |
20 |
6 |
0 |
| OW |
0 |
47 |
236 |
213 |
110 |
40 |
3 |
0 |
| VODI |
0 |
34 |
112 |
169 |
163 |
95 |
42 |
0 |
| ODI |
0 |
17 |
67 |
120 |
199 |
238 |
184 |
2 |
| CDI |
0 |
0 |
12 |
67 |
185 |
384 |
653 |
31 |
| VCDI |
0 |
0 |
31 |
140 |
165 |
515 |
6470 |
5368 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13857 |
6448 |
900 |
530 |
152 |
33 |
8 |
0 |
| OW |
0 |
80 |
158 |
140 |
90 |
30 |
14 |
0 |
| VODI |
0 |
56 |
161 |
161 |
132 |
94 |
58 |
0 |
| ODI |
0 |
20 |
76 |
80 |
134 |
138 |
132 |
0 |
| CDI |
0 |
24 |
77 |
89 |
155 |
293 |
383 |
20 |
| VCDI |
0 |
26 |
68 |
217 |
277 |
704 |
6763 |
5381 |
|
Date: 2016-04-15:
| 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 |
13691 |
6628 |
1040 |
554 |
125 |
25 |
6 |
0 |
| OW |
0 |
41 |
199 |
187 |
111 |
38 |
7 |
0 |
| VODI |
0 |
28 |
119 |
164 |
178 |
114 |
33 |
0 |
| ODI |
0 |
17 |
45 |
99 |
141 |
203 |
199 |
0 |
| CDI |
0 |
1 |
24 |
115 |
153 |
314 |
482 |
5 |
| VCDI |
0 |
0 |
9 |
160 |
223 |
808 |
7614 |
4259 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13691 |
6552 |
952 |
501 |
151 |
39 |
10 |
0 |
| OW |
0 |
45 |
192 |
154 |
81 |
35 |
14 |
0 |
| VODI |
0 |
45 |
127 |
193 |
130 |
111 |
57 |
0 |
| ODI |
0 |
23 |
62 |
107 |
107 |
118 |
116 |
0 |
| CDI |
0 |
26 |
64 |
97 |
179 |
286 |
487 |
10 |
| VCDI |
0 |
24 |
39 |
227 |
283 |
913 |
7657 |
4254 |
|
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