Validation of sea ice concentration
Bulletin date: 2017-11-16
Model vs. observations, sea ice class contingency tables
Date: 2017-11-10:
| 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 |
19366 |
6681 |
929 |
340 |
247 |
106 |
51 |
0 |
| OW |
0 |
25 |
147 |
112 |
216 |
171 |
3 |
0 |
| VODI |
0 |
4 |
75 |
70 |
125 |
682 |
53 |
0 |
| ODI |
0 |
0 |
21 |
49 |
56 |
383 |
119 |
0 |
| CDI |
0 |
0 |
19 |
36 |
33 |
216 |
491 |
0 |
| VCDI |
0 |
0 |
1 |
21 |
20 |
243 |
3407 |
3641 |
|
...date precedes bulletin
|
Date: 2017-11-14:
| 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 |
19312 |
6740 |
1172 |
474 |
215 |
117 |
68 |
0 |
| OW |
0 |
7 |
122 |
137 |
96 |
36 |
17 |
0 |
| VODI |
0 |
0 |
87 |
168 |
162 |
150 |
37 |
0 |
| ODI |
0 |
0 |
30 |
86 |
128 |
209 |
40 |
0 |
| CDI |
0 |
0 |
4 |
40 |
105 |
349 |
382 |
0 |
| VCDI |
0 |
0 |
7 |
23 |
48 |
425 |
4372 |
2794 |
|
...date precedes bulletin
|
Date: 2017-11-16:
| 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 |
19154 |
6919 |
779 |
330 |
199 |
86 |
75 |
0 |
| OW |
0 |
172 |
190 |
119 |
49 |
20 |
12 |
0 |
| VODI |
0 |
40 |
241 |
162 |
120 |
57 |
42 |
0 |
| ODI |
0 |
0 |
87 |
168 |
168 |
116 |
73 |
0 |
| CDI |
0 |
0 |
20 |
98 |
158 |
180 |
166 |
13 |
| VCDI |
0 |
0 |
9 |
62 |
148 |
431 |
4514 |
2982 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19154 |
6984 |
814 |
349 |
206 |
87 |
69 |
0 |
| OW |
0 |
121 |
190 |
116 |
47 |
23 |
19 |
0 |
| VODI |
0 |
26 |
208 |
192 |
139 |
77 |
46 |
0 |
| ODI |
0 |
0 |
88 |
141 |
158 |
93 |
49 |
0 |
| CDI |
0 |
0 |
17 |
82 |
146 |
174 |
180 |
13 |
| VCDI |
0 |
0 |
9 |
59 |
146 |
436 |
4519 |
2982 |
|
Date: 2017-11-20:
| 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 |
18900 |
6817 |
677 |
243 |
193 |
164 |
98 |
0 |
| OW |
0 |
127 |
154 |
90 |
67 |
101 |
37 |
0 |
| VODI |
0 |
63 |
74 |
99 |
108 |
166 |
55 |
0 |
| ODI |
0 |
4 |
33 |
69 |
107 |
461 |
125 |
6 |
| CDI |
0 |
0 |
3 |
27 |
80 |
307 |
330 |
54 |
| VCDI |
0 |
0 |
0 |
19 |
49 |
478 |
3583 |
4191 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18900 |
6576 |
567 |
186 |
184 |
186 |
112 |
0 |
| OW |
0 |
186 |
90 |
62 |
32 |
64 |
37 |
0 |
| VODI |
0 |
181 |
121 |
68 |
40 |
85 |
33 |
0 |
| ODI |
0 |
53 |
91 |
107 |
99 |
180 |
80 |
4 |
| CDI |
0 |
15 |
65 |
70 |
104 |
444 |
188 |
52 |
| VCDI |
0 |
0 |
7 |
54 |
145 |
718 |
3778 |
4195 |
|
Date: 2017-11-22:
| 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 |
17525 |
7355 |
882 |
406 |
177 |
137 |
95 |
0 |
| OW |
0 |
136 |
97 |
103 |
62 |
89 |
21 |
0 |
| VODI |
0 |
90 |
65 |
107 |
106 |
104 |
45 |
0 |
| ODI |
0 |
60 |
41 |
42 |
118 |
186 |
75 |
0 |
| CDI |
0 |
17 |
66 |
40 |
110 |
410 |
208 |
71 |
| VCDI |
0 |
1 |
13 |
38 |
77 |
777 |
4414 |
3793 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17525 |
7258 |
764 |
348 |
167 |
159 |
101 |
0 |
| OW |
0 |
139 |
113 |
89 |
33 |
46 |
48 |
0 |
| VODI |
0 |
109 |
124 |
97 |
80 |
89 |
37 |
0 |
| ODI |
0 |
66 |
54 |
86 |
129 |
162 |
52 |
0 |
| CDI |
0 |
52 |
48 |
50 |
106 |
369 |
183 |
65 |
| VCDI |
0 |
35 |
61 |
66 |
135 |
878 |
4437 |
3799 |
|
Date: 2017-11-24:
| 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 |
17288 |
7249 |
786 |
415 |
191 |
124 |
98 |
0 |
| OW |
0 |
181 |
111 |
115 |
85 |
70 |
19 |
0 |
| VODI |
0 |
53 |
89 |
81 |
99 |
132 |
57 |
0 |
| ODI |
0 |
13 |
46 |
58 |
71 |
207 |
76 |
0 |
| CDI |
0 |
14 |
22 |
48 |
52 |
442 |
343 |
0 |
| VCDI |
0 |
13 |
20 |
52 |
126 |
1100 |
5165 |
3048 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17288 |
7254 |
723 |
359 |
192 |
136 |
98 |
0 |
| OW |
0 |
144 |
135 |
104 |
42 |
62 |
36 |
0 |
| VODI |
0 |
63 |
107 |
117 |
114 |
89 |
72 |
0 |
| ODI |
0 |
31 |
57 |
75 |
84 |
263 |
63 |
0 |
| CDI |
0 |
14 |
21 |
55 |
82 |
404 |
222 |
16 |
| VCDI |
0 |
17 |
31 |
59 |
110 |
1121 |
5267 |
3032 |
|
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