Validation of sea ice concentration
Bulletin date: 2017-03-30
Model vs. observations, sea ice class contingency tables
Date: 2017-03-24:
| 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 |
13370 |
6751 |
668 |
454 |
111 |
48 |
22 |
0 |
| OW |
0 |
137 |
232 |
235 |
111 |
46 |
32 |
0 |
| VODI |
0 |
82 |
151 |
225 |
140 |
126 |
96 |
0 |
| ODI |
0 |
33 |
74 |
128 |
128 |
131 |
134 |
1 |
| CDI |
0 |
23 |
36 |
118 |
121 |
255 |
518 |
16 |
| VCDI |
0 |
19 |
32 |
54 |
110 |
405 |
8269 |
4517 |
|
...date precedes bulletin
|
Date: 2017-03-28:
| 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 |
13074 |
6660 |
900 |
642 |
164 |
39 |
11 |
0 |
| OW |
0 |
78 |
196 |
185 |
105 |
29 |
26 |
0 |
| VODI |
0 |
17 |
202 |
192 |
207 |
109 |
68 |
0 |
| ODI |
0 |
4 |
81 |
109 |
143 |
158 |
123 |
0 |
| CDI |
0 |
4 |
17 |
70 |
119 |
261 |
526 |
13 |
| VCDI |
0 |
1 |
19 |
54 |
138 |
731 |
7796 |
4888 |
|
...date precedes bulletin
|
Date: 2017-03-30:
| 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 |
12715 |
6457 |
979 |
595 |
236 |
122 |
8 |
0 |
| OW |
0 |
29 |
183 |
202 |
113 |
99 |
20 |
0 |
| VODI |
0 |
28 |
232 |
180 |
218 |
192 |
46 |
0 |
| ODI |
0 |
11 |
60 |
78 |
129 |
232 |
128 |
0 |
| CDI |
0 |
0 |
13 |
36 |
98 |
300 |
612 |
32 |
| VCDI |
0 |
0 |
7 |
15 |
56 |
367 |
7392 |
5939 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12715 |
6455 |
1003 |
597 |
237 |
127 |
11 |
0 |
| OW |
0 |
27 |
134 |
183 |
109 |
97 |
25 |
0 |
| VODI |
0 |
27 |
262 |
202 |
230 |
221 |
38 |
0 |
| ODI |
0 |
16 |
56 |
77 |
112 |
201 |
129 |
0 |
| CDI |
0 |
0 |
12 |
30 |
98 |
279 |
612 |
23 |
| VCDI |
0 |
0 |
7 |
17 |
64 |
387 |
7391 |
5948 |
|
Date: 2017-04-03:
| 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 |
12443 |
6339 |
1329 |
507 |
175 |
131 |
36 |
0 |
| OW |
0 |
2 |
182 |
144 |
99 |
60 |
29 |
0 |
| VODI |
0 |
0 |
171 |
270 |
156 |
110 |
51 |
0 |
| ODI |
0 |
0 |
34 |
150 |
175 |
188 |
131 |
0 |
| CDI |
0 |
0 |
31 |
67 |
137 |
399 |
444 |
0 |
| VCDI |
0 |
0 |
15 |
64 |
98 |
915 |
9219 |
3858 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12443 |
6318 |
1133 |
436 |
193 |
164 |
54 |
0 |
| OW |
0 |
22 |
253 |
111 |
45 |
49 |
46 |
0 |
| VODI |
0 |
1 |
235 |
231 |
147 |
91 |
58 |
0 |
| ODI |
0 |
0 |
72 |
196 |
162 |
215 |
179 |
0 |
| CDI |
0 |
0 |
38 |
120 |
150 |
309 |
429 |
1 |
| VCDI |
0 |
0 |
31 |
108 |
143 |
975 |
9144 |
3857 |
|
Date: 2017-04-05:
| 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 |
13131 |
6105 |
1059 |
429 |
173 |
66 |
15 |
0 |
| OW |
0 |
4 |
153 |
168 |
72 |
71 |
20 |
0 |
| VODI |
0 |
0 |
84 |
158 |
171 |
191 |
48 |
0 |
| ODI |
0 |
0 |
26 |
92 |
199 |
195 |
97 |
0 |
| CDI |
0 |
0 |
5 |
36 |
201 |
353 |
349 |
21 |
| VCDI |
0 |
0 |
0 |
12 |
116 |
530 |
8589 |
5220 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13131 |
6082 |
911 |
391 |
155 |
95 |
23 |
0 |
| OW |
0 |
23 |
220 |
128 |
71 |
40 |
31 |
0 |
| VODI |
0 |
4 |
124 |
166 |
109 |
102 |
60 |
0 |
| ODI |
0 |
0 |
58 |
128 |
224 |
267 |
141 |
0 |
| CDI |
0 |
0 |
9 |
61 |
217 |
332 |
451 |
6 |
| VCDI |
0 |
0 |
5 |
21 |
156 |
570 |
8412 |
5235 |
|
Date: 2017-04-07:
| 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 |
13163 |
6115 |
854 |
457 |
162 |
59 |
4 |
0 |
| OW |
0 |
37 |
147 |
151 |
99 |
45 |
8 |
0 |
| VODI |
0 |
24 |
75 |
181 |
126 |
87 |
21 |
0 |
| ODI |
0 |
11 |
18 |
139 |
179 |
315 |
95 |
0 |
| CDI |
0 |
4 |
13 |
45 |
155 |
347 |
392 |
5 |
| VCDI |
0 |
0 |
5 |
42 |
137 |
723 |
8562 |
5157 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13163 |
6084 |
771 |
425 |
180 |
66 |
5 |
0 |
| OW |
0 |
43 |
172 |
134 |
99 |
48 |
15 |
0 |
| VODI |
0 |
35 |
107 |
191 |
114 |
115 |
36 |
0 |
| ODI |
0 |
14 |
36 |
114 |
122 |
295 |
123 |
0 |
| CDI |
0 |
13 |
10 |
101 |
166 |
409 |
464 |
7 |
| VCDI |
0 |
2 |
16 |
50 |
177 |
643 |
8439 |
5155 |
|
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