Validation of sea ice concentration
Bulletin date: 2020-01-02
Model vs. observations, sea ice class contingency tables
Date: 2019-12-27:
| 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 |
13976 |
5981 |
1128 |
310 |
221 |
79 |
65 |
0 |
| OW |
0 |
12 |
233 |
110 |
99 |
68 |
27 |
0 |
| VODI |
0 |
8 |
129 |
128 |
140 |
96 |
47 |
0 |
| ODI |
0 |
7 |
37 |
63 |
120 |
129 |
98 |
0 |
| CDI |
0 |
8 |
26 |
44 |
124 |
142 |
416 |
27 |
| VCDI |
0 |
0 |
22 |
51 |
130 |
255 |
7538 |
6065 |
|
...date precedes bulletin
|
Date: 2019-12-31:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2020-01-02:
| 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 |
13912 |
6427 |
836 |
371 |
161 |
61 |
21 |
0 |
| OW |
0 |
35 |
165 |
164 |
74 |
42 |
31 |
0 |
| VODI |
0 |
17 |
79 |
173 |
126 |
75 |
49 |
0 |
| ODI |
0 |
11 |
27 |
154 |
116 |
88 |
86 |
42 |
| CDI |
0 |
9 |
24 |
115 |
114 |
150 |
255 |
88 |
| VCDI |
0 |
1 |
13 |
159 |
289 |
668 |
7892 |
5039 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13912 |
6436 |
835 |
380 |
169 |
67 |
28 |
0 |
| OW |
0 |
27 |
159 |
146 |
76 |
39 |
31 |
0 |
| VODI |
0 |
18 |
89 |
180 |
115 |
71 |
42 |
0 |
| ODI |
0 |
12 |
22 |
144 |
112 |
104 |
100 |
45 |
| CDI |
0 |
7 |
15 |
115 |
114 |
135 |
232 |
85 |
| VCDI |
0 |
0 |
24 |
171 |
294 |
668 |
7901 |
5039 |
|
Date: 2020-01-06:
| 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 |
13757 |
6156 |
1148 |
346 |
256 |
172 |
21 |
0 |
| OW |
0 |
32 |
168 |
139 |
106 |
66 |
36 |
0 |
| VODI |
0 |
6 |
125 |
132 |
207 |
86 |
77 |
0 |
| ODI |
0 |
4 |
55 |
94 |
100 |
124 |
136 |
24 |
| CDI |
0 |
6 |
54 |
91 |
113 |
139 |
409 |
85 |
| VCDI |
0 |
2 |
59 |
75 |
148 |
280 |
6313 |
6812 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13757 |
6083 |
974 |
314 |
260 |
176 |
43 |
0 |
| OW |
0 |
67 |
221 |
92 |
79 |
52 |
36 |
0 |
| VODI |
0 |
33 |
134 |
124 |
148 |
83 |
67 |
5 |
| ODI |
0 |
12 |
89 |
101 |
128 |
84 |
127 |
46 |
| CDI |
0 |
5 |
60 |
57 |
93 |
138 |
315 |
80 |
| VCDI |
0 |
6 |
131 |
189 |
222 |
334 |
6404 |
6790 |
|
Date: 2020-01-08:
| 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 |
14257 |
6152 |
1082 |
319 |
175 |
39 |
38 |
0 |
| OW |
0 |
46 |
193 |
103 |
110 |
36 |
37 |
0 |
| VODI |
0 |
16 |
121 |
156 |
167 |
86 |
71 |
0 |
| ODI |
0 |
7 |
71 |
120 |
128 |
122 |
146 |
0 |
| CDI |
0 |
7 |
53 |
85 |
126 |
137 |
411 |
17 |
| VCDI |
0 |
0 |
39 |
171 |
203 |
292 |
7266 |
5554 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14257 |
6012 |
899 |
276 |
152 |
30 |
33 |
0 |
| OW |
0 |
127 |
220 |
82 |
94 |
50 |
40 |
0 |
| VODI |
0 |
62 |
206 |
131 |
148 |
62 |
71 |
0 |
| ODI |
0 |
11 |
118 |
144 |
138 |
82 |
104 |
0 |
| CDI |
0 |
10 |
51 |
127 |
124 |
160 |
342 |
44 |
| VCDI |
0 |
6 |
65 |
194 |
253 |
328 |
7379 |
5527 |
|
Date: 2020-01-10:
| 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 |
14442 |
6073 |
914 |
265 |
108 |
26 |
8 |
0 |
| OW |
0 |
155 |
143 |
142 |
140 |
44 |
23 |
0 |
| VODI |
0 |
87 |
133 |
152 |
171 |
125 |
32 |
0 |
| ODI |
0 |
50 |
64 |
135 |
134 |
112 |
79 |
17 |
| CDI |
0 |
41 |
89 |
94 |
105 |
155 |
275 |
94 |
| VCDI |
0 |
8 |
88 |
230 |
262 |
741 |
7940 |
4263 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14442 |
6047 |
770 |
210 |
102 |
20 |
20 |
0 |
| OW |
0 |
198 |
199 |
118 |
64 |
40 |
32 |
0 |
| VODI |
0 |
93 |
191 |
185 |
142 |
83 |
61 |
0 |
| ODI |
0 |
36 |
109 |
151 |
184 |
114 |
64 |
0 |
| CDI |
0 |
24 |
75 |
97 |
125 |
163 |
233 |
6 |
| VCDI |
0 |
16 |
87 |
257 |
303 |
783 |
7947 |
4368 |
|
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