Validation of sea ice concentration
Bulletin date: 2022-02-17
Model vs. observations, sea ice class contingency tables
Date: 2022-02-11:
| 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 |
13349 |
5815 |
779 |
287 |
125 |
59 |
15 |
0 |
| OW |
0 |
200 |
198 |
106 |
60 |
34 |
18 |
0 |
| VODI |
0 |
146 |
217 |
211 |
185 |
154 |
36 |
0 |
| ODI |
0 |
76 |
117 |
187 |
206 |
185 |
122 |
0 |
| CDI |
0 |
50 |
91 |
185 |
217 |
230 |
418 |
6 |
| VCDI |
0 |
86 |
217 |
269 |
333 |
863 |
8279 |
4028 |
|
...date precedes bulletin
|
Date: 2022-02-15:
| 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 |
12739 |
6015 |
1039 |
370 |
189 |
79 |
78 |
0 |
| OW |
0 |
62 |
192 |
154 |
95 |
61 |
38 |
0 |
| VODI |
0 |
50 |
129 |
217 |
200 |
172 |
69 |
0 |
| ODI |
0 |
31 |
154 |
145 |
284 |
267 |
179 |
9 |
| CDI |
0 |
18 |
96 |
113 |
166 |
348 |
671 |
60 |
| VCDI |
0 |
11 |
262 |
230 |
201 |
520 |
7250 |
5196 |
|
...date precedes bulletin
|
Date: 2022-02-17:
| 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 |
12759 |
5550 |
1249 |
480 |
165 |
100 |
86 |
0 |
| OW |
0 |
24 |
199 |
150 |
106 |
102 |
33 |
0 |
| VODI |
0 |
1 |
134 |
150 |
138 |
258 |
61 |
0 |
| ODI |
0 |
0 |
101 |
107 |
144 |
364 |
168 |
0 |
| CDI |
0 |
19 |
142 |
89 |
115 |
430 |
651 |
0 |
| VCDI |
0 |
59 |
186 |
344 |
242 |
699 |
8813 |
3741 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12759 |
5555 |
1271 |
515 |
180 |
114 |
89 |
0 |
| OW |
0 |
20 |
184 |
116 |
97 |
118 |
32 |
0 |
| VODI |
0 |
0 |
125 |
154 |
137 |
228 |
55 |
0 |
| ODI |
0 |
0 |
97 |
103 |
151 |
368 |
184 |
0 |
| CDI |
0 |
23 |
158 |
87 |
106 |
456 |
672 |
0 |
| VCDI |
0 |
55 |
176 |
345 |
239 |
669 |
8780 |
3741 |
|
Date: 2022-02-21:
| 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 |
12766 |
5560 |
1025 |
316 |
188 |
125 |
81 |
0 |
| OW |
0 |
46 |
151 |
114 |
115 |
84 |
31 |
0 |
| VODI |
0 |
1 |
134 |
131 |
180 |
226 |
62 |
0 |
| ODI |
0 |
0 |
91 |
78 |
154 |
387 |
136 |
11 |
| CDI |
0 |
0 |
39 |
74 |
137 |
545 |
577 |
95 |
| VCDI |
0 |
0 |
103 |
119 |
171 |
360 |
7422 |
6324 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12766 |
5560 |
984 |
322 |
248 |
184 |
113 |
0 |
| OW |
0 |
25 |
159 |
82 |
90 |
133 |
35 |
0 |
| VODI |
0 |
17 |
123 |
122 |
119 |
189 |
91 |
6 |
| ODI |
0 |
5 |
95 |
73 |
138 |
282 |
133 |
27 |
| CDI |
0 |
0 |
71 |
95 |
117 |
373 |
493 |
70 |
| VCDI |
0 |
0 |
111 |
138 |
233 |
566 |
7444 |
6327 |
|
Date: 2022-02-23:
| 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 |
12638 |
5616 |
948 |
509 |
140 |
98 |
69 |
0 |
| OW |
0 |
27 |
150 |
144 |
95 |
68 |
31 |
0 |
| VODI |
0 |
16 |
86 |
144 |
138 |
146 |
54 |
0 |
| ODI |
0 |
3 |
35 |
101 |
155 |
258 |
137 |
0 |
| CDI |
0 |
0 |
22 |
87 |
170 |
396 |
660 |
10 |
| VCDI |
0 |
0 |
82 |
117 |
173 |
767 |
8679 |
5190 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12638 |
5594 |
905 |
507 |
176 |
125 |
98 |
0 |
| OW |
0 |
31 |
138 |
113 |
98 |
100 |
46 |
0 |
| VODI |
0 |
23 |
96 |
126 |
99 |
152 |
78 |
0 |
| ODI |
0 |
12 |
47 |
87 |
122 |
208 |
152 |
0 |
| CDI |
0 |
2 |
42 |
122 |
146 |
351 |
638 |
36 |
| VCDI |
0 |
0 |
95 |
147 |
230 |
797 |
8618 |
5164 |
|
Date: 2022-02-25:
| 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 |
12582 |
5680 |
846 |
533 |
184 |
106 |
69 |
0 |
| OW |
0 |
37 |
147 |
137 |
85 |
77 |
22 |
0 |
| VODI |
0 |
22 |
120 |
153 |
154 |
182 |
58 |
0 |
| ODI |
0 |
9 |
68 |
141 |
140 |
224 |
108 |
3 |
| CDI |
0 |
0 |
57 |
126 |
129 |
252 |
326 |
57 |
| VCDI |
0 |
0 |
82 |
214 |
239 |
939 |
8744 |
5107 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12582 |
5661 |
815 |
534 |
219 |
159 |
98 |
0 |
| OW |
0 |
44 |
130 |
116 |
76 |
86 |
30 |
0 |
| VODI |
0 |
22 |
127 |
131 |
119 |
149 |
71 |
0 |
| ODI |
0 |
18 |
68 |
120 |
120 |
184 |
115 |
0 |
| CDI |
0 |
3 |
72 |
146 |
138 |
282 |
364 |
9 |
| VCDI |
0 |
0 |
108 |
257 |
259 |
920 |
8649 |
5158 |
|
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