Validation of sea ice concentration
Bulletin date: 2018-01-04
Model vs. observations, sea ice class contingency tables
Date: 2017-12-29:
| 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 |
14797 |
7320 |
1097 |
338 |
93 |
46 |
29 |
0 |
| OW |
0 |
44 |
158 |
228 |
103 |
55 |
39 |
0 |
| VODI |
0 |
20 |
78 |
229 |
178 |
127 |
53 |
0 |
| ODI |
0 |
14 |
26 |
134 |
144 |
199 |
121 |
14 |
| CDI |
0 |
11 |
18 |
106 |
194 |
430 |
314 |
65 |
| VCDI |
0 |
6 |
16 |
67 |
155 |
629 |
6194 |
4270 |
|
...date precedes bulletin
|
Date: 2018-01-02:
| 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 |
14748 |
7140 |
1476 |
383 |
149 |
46 |
13 |
0 |
| OW |
5 |
47 |
168 |
162 |
125 |
54 |
32 |
0 |
| VODI |
5 |
33 |
90 |
161 |
170 |
142 |
70 |
0 |
| ODI |
0 |
5 |
35 |
72 |
133 |
192 |
139 |
0 |
| CDI |
0 |
2 |
27 |
62 |
107 |
364 |
350 |
3 |
| VCDI |
0 |
0 |
11 |
34 |
70 |
777 |
6709 |
3848 |
|
...date precedes bulletin
|
Date: 2018-01-04:
| 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 |
14491 |
7435 |
1108 |
322 |
143 |
74 |
28 |
0 |
| OW |
0 |
80 |
252 |
171 |
87 |
65 |
29 |
0 |
| VODI |
0 |
42 |
130 |
142 |
173 |
134 |
73 |
0 |
| ODI |
0 |
14 |
46 |
47 |
101 |
177 |
151 |
0 |
| CDI |
0 |
8 |
29 |
41 |
62 |
218 |
374 |
38 |
| VCDI |
0 |
2 |
39 |
47 |
76 |
435 |
7019 |
4256 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14491 |
7454 |
1124 |
338 |
154 |
82 |
31 |
0 |
| OW |
0 |
59 |
229 |
145 |
76 |
64 |
25 |
0 |
| VODI |
0 |
40 |
136 |
144 |
161 |
123 |
81 |
0 |
| ODI |
0 |
16 |
39 |
51 |
105 |
172 |
169 |
0 |
| CDI |
0 |
11 |
34 |
39 |
58 |
218 |
367 |
41 |
| VCDI |
0 |
1 |
42 |
53 |
88 |
444 |
7001 |
4253 |
|
Date: 2018-01-08:
| 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 |
14274 |
7507 |
1287 |
431 |
151 |
47 |
17 |
0 |
| OW |
0 |
70 |
189 |
142 |
98 |
53 |
12 |
0 |
| VODI |
0 |
24 |
157 |
174 |
221 |
126 |
43 |
0 |
| ODI |
0 |
1 |
38 |
73 |
111 |
218 |
176 |
18 |
| CDI |
0 |
0 |
32 |
30 |
96 |
251 |
378 |
74 |
| VCDI |
0 |
303 |
27 |
56 |
105 |
696 |
8340 |
2113 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14274 |
7378 |
1171 |
370 |
116 |
52 |
19 |
0 |
| OW |
0 |
128 |
199 |
141 |
89 |
40 |
17 |
0 |
| VODI |
0 |
78 |
170 |
139 |
174 |
105 |
47 |
0 |
| ODI |
0 |
17 |
73 |
106 |
129 |
163 |
152 |
15 |
| CDI |
0 |
1 |
43 |
63 |
120 |
233 |
334 |
62 |
| VCDI |
0 |
303 |
74 |
87 |
154 |
798 |
8397 |
2128 |
|
Date: 2018-01-10:
| 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 |
14552 |
7491 |
956 |
340 |
219 |
126 |
35 |
0 |
| OW |
0 |
53 |
118 |
91 |
111 |
104 |
22 |
0 |
| VODI |
0 |
36 |
61 |
70 |
113 |
157 |
72 |
0 |
| ODI |
0 |
13 |
39 |
50 |
106 |
170 |
157 |
3 |
| CDI |
0 |
1 |
25 |
30 |
143 |
272 |
403 |
36 |
| VCDI |
0 |
303 |
21 |
56 |
120 |
749 |
8718 |
2017 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14552 |
7365 |
811 |
278 |
179 |
116 |
38 |
0 |
| OW |
0 |
125 |
156 |
92 |
99 |
100 |
32 |
0 |
| VODI |
0 |
74 |
117 |
92 |
119 |
130 |
98 |
0 |
| ODI |
0 |
22 |
59 |
59 |
104 |
151 |
134 |
0 |
| CDI |
0 |
7 |
31 |
45 |
132 |
219 |
366 |
7 |
| VCDI |
0 |
304 |
46 |
71 |
179 |
862 |
8739 |
2049 |
|
Date: 2018-01-12:
| 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 |
14316 |
7343 |
1337 |
397 |
121 |
44 |
19 |
0 |
| OW |
0 |
68 |
103 |
168 |
106 |
72 |
30 |
0 |
| VODI |
0 |
41 |
47 |
143 |
101 |
127 |
84 |
0 |
| ODI |
0 |
17 |
21 |
75 |
86 |
120 |
177 |
0 |
| CDI |
0 |
2 |
27 |
39 |
87 |
243 |
436 |
12 |
| VCDI |
0 |
303 |
40 |
71 |
107 |
738 |
9681 |
1210 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14316 |
7218 |
1194 |
327 |
112 |
50 |
17 |
0 |
| OW |
0 |
152 |
193 |
142 |
69 |
66 |
31 |
0 |
| VODI |
0 |
65 |
83 |
157 |
112 |
105 |
80 |
0 |
| ODI |
0 |
22 |
25 |
110 |
75 |
125 |
154 |
0 |
| CDI |
0 |
13 |
17 |
68 |
113 |
203 |
334 |
0 |
| VCDI |
0 |
304 |
63 |
89 |
127 |
795 |
9811 |
1222 |
|
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