Validation of sea ice concentration
Bulletin date: 2022-02-10
Model vs. observations, sea ice class contingency tables
Date: 2022-02-04:
| 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 |
12757 |
5946 |
812 |
379 |
165 |
67 |
19 |
0 |
| OW |
0 |
99 |
114 |
105 |
123 |
76 |
30 |
0 |
| VODI |
0 |
20 |
126 |
120 |
143 |
119 |
65 |
0 |
| ODI |
0 |
1 |
62 |
48 |
164 |
198 |
148 |
14 |
| CDI |
0 |
0 |
69 |
46 |
120 |
294 |
705 |
120 |
| VCDI |
0 |
0 |
64 |
236 |
242 |
688 |
8502 |
5153 |
|
...date precedes bulletin
|
Date: 2022-02-08:
| 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 |
13415 |
5868 |
797 |
429 |
117 |
57 |
15 |
0 |
| OW |
0 |
120 |
185 |
67 |
65 |
41 |
15 |
0 |
| VODI |
0 |
93 |
189 |
122 |
100 |
125 |
36 |
0 |
| ODI |
0 |
33 |
98 |
168 |
115 |
234 |
111 |
14 |
| CDI |
0 |
35 |
99 |
173 |
102 |
224 |
433 |
64 |
| VCDI |
0 |
106 |
124 |
333 |
215 |
739 |
8120 |
4763 |
|
...date precedes bulletin
|
Date: 2022-02-10:
| 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 |
13462 |
5858 |
705 |
272 |
145 |
83 |
13 |
0 |
| OW |
0 |
163 |
205 |
110 |
50 |
46 |
18 |
0 |
| VODI |
0 |
94 |
233 |
164 |
168 |
113 |
39 |
0 |
| ODI |
0 |
52 |
106 |
182 |
196 |
211 |
98 |
21 |
| CDI |
0 |
35 |
78 |
171 |
158 |
232 |
348 |
52 |
| VCDI |
0 |
96 |
188 |
238 |
313 |
835 |
7789 |
4819 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13462 |
5900 |
739 |
291 |
151 |
89 |
19 |
0 |
| OW |
0 |
130 |
215 |
100 |
48 |
41 |
14 |
0 |
| VODI |
0 |
91 |
196 |
185 |
165 |
115 |
39 |
0 |
| ODI |
0 |
55 |
102 |
173 |
210 |
202 |
106 |
21 |
| CDI |
0 |
42 |
91 |
159 |
163 |
255 |
364 |
54 |
| VCDI |
0 |
80 |
172 |
229 |
293 |
818 |
7763 |
4817 |
|
Date: 2022-02-14:
| 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 |
12730 |
6117 |
956 |
431 |
175 |
55 |
71 |
0 |
| OW |
0 |
73 |
162 |
157 |
135 |
49 |
21 |
0 |
| VODI |
0 |
70 |
173 |
172 |
261 |
176 |
68 |
0 |
| ODI |
0 |
18 |
134 |
136 |
269 |
333 |
193 |
9 |
| CDI |
0 |
19 |
94 |
120 |
197 |
417 |
690 |
47 |
| VCDI |
0 |
10 |
235 |
164 |
227 |
389 |
7242 |
5164 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12730 |
5955 |
855 |
344 |
161 |
60 |
82 |
0 |
| OW |
0 |
182 |
151 |
149 |
99 |
46 |
25 |
0 |
| VODI |
0 |
77 |
143 |
150 |
221 |
172 |
62 |
0 |
| ODI |
0 |
39 |
138 |
130 |
249 |
285 |
170 |
13 |
| CDI |
0 |
29 |
137 |
160 |
189 |
304 |
525 |
61 |
| VCDI |
0 |
25 |
330 |
247 |
345 |
552 |
7421 |
5146 |
|
Date: 2022-02-16:
| 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 |
12814 |
5784 |
1105 |
412 |
180 |
79 |
85 |
0 |
| OW |
0 |
28 |
207 |
180 |
126 |
59 |
40 |
0 |
| VODI |
0 |
12 |
91 |
184 |
179 |
216 |
63 |
0 |
| ODI |
0 |
23 |
96 |
135 |
203 |
307 |
213 |
0 |
| CDI |
0 |
56 |
131 |
105 |
138 |
343 |
669 |
2 |
| VCDI |
0 |
48 |
216 |
220 |
221 |
483 |
7926 |
4780 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12814 |
5762 |
935 |
346 |
136 |
66 |
100 |
0 |
| OW |
0 |
46 |
248 |
126 |
102 |
54 |
33 |
0 |
| VODI |
0 |
12 |
171 |
173 |
179 |
188 |
75 |
0 |
| ODI |
0 |
26 |
86 |
151 |
201 |
322 |
201 |
0 |
| CDI |
0 |
8 |
121 |
143 |
139 |
318 |
660 |
0 |
| VCDI |
0 |
97 |
285 |
297 |
290 |
539 |
7927 |
4782 |
|
Date: 2022-02-18:
| 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 |
12811 |
5582 |
1131 |
403 |
189 |
69 |
86 |
0 |
| OW |
0 |
72 |
164 |
132 |
105 |
81 |
36 |
0 |
| VODI |
0 |
24 |
151 |
130 |
191 |
189 |
59 |
0 |
| ODI |
0 |
2 |
95 |
99 |
202 |
314 |
130 |
0 |
| CDI |
0 |
0 |
135 |
99 |
235 |
413 |
561 |
10 |
| VCDI |
0 |
76 |
181 |
273 |
336 |
829 |
7822 |
4742 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12811 |
5558 |
979 |
357 |
152 |
51 |
92 |
0 |
| OW |
0 |
80 |
197 |
101 |
99 |
48 |
25 |
0 |
| VODI |
0 |
28 |
178 |
142 |
135 |
149 |
49 |
0 |
| ODI |
0 |
12 |
106 |
102 |
209 |
268 |
124 |
0 |
| CDI |
0 |
2 |
150 |
88 |
229 |
466 |
598 |
10 |
| VCDI |
0 |
76 |
247 |
346 |
434 |
913 |
7806 |
4742 |
|
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