Validation of sea ice concentration
Bulletin date: 2022-06-23
Model vs. observations, sea ice class contingency tables
Date: 2022-06-17:
| 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 |
16519 |
6543 |
1358 |
829 |
382 |
141 |
78 |
0 |
| OW |
0 |
28 |
76 |
242 |
320 |
216 |
84 |
0 |
| VODI |
0 |
13 |
54 |
135 |
371 |
561 |
255 |
0 |
| ODI |
0 |
3 |
33 |
65 |
198 |
513 |
664 |
0 |
| CDI |
0 |
1 |
40 |
84 |
149 |
494 |
1294 |
1 |
| VCDI |
0 |
0 |
3 |
24 |
13 |
29 |
2394 |
3952 |
|
...date precedes bulletin
|
Date: 2022-06-21:
| 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 |
17213 |
6419 |
1453 |
1264 |
261 |
98 |
90 |
0 |
| OW |
0 |
23 |
60 |
464 |
231 |
164 |
74 |
0 |
| VODI |
0 |
18 |
37 |
280 |
337 |
397 |
214 |
0 |
| ODI |
0 |
6 |
23 |
87 |
162 |
430 |
421 |
0 |
| CDI |
0 |
2 |
42 |
122 |
127 |
375 |
816 |
0 |
| VCDI |
0 |
0 |
2 |
16 |
38 |
69 |
2443 |
3881 |
|
...date precedes bulletin
|
Date: 2022-06-23:
| 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 |
17898 |
5847 |
1758 |
1122 |
363 |
134 |
96 |
0 |
| OW |
0 |
42 |
106 |
400 |
337 |
207 |
74 |
0 |
| VODI |
0 |
37 |
43 |
194 |
253 |
274 |
205 |
0 |
| ODI |
0 |
29 |
23 |
43 |
115 |
270 |
419 |
0 |
| CDI |
0 |
38 |
71 |
100 |
130 |
258 |
659 |
0 |
| VCDI |
0 |
0 |
5 |
23 |
27 |
113 |
2431 |
4015 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
17898 |
5848 |
1782 |
1231 |
448 |
164 |
104 |
0 |
| OW |
0 |
41 |
89 |
305 |
277 |
172 |
68 |
0 |
| VODI |
0 |
41 |
34 |
177 |
229 |
262 |
190 |
0 |
| ODI |
0 |
29 |
30 |
50 |
124 |
279 |
420 |
0 |
| CDI |
0 |
34 |
68 |
96 |
120 |
263 |
679 |
0 |
| VCDI |
0 |
0 |
3 |
23 |
27 |
116 |
2423 |
4015 |
|
Date: 2022-06-27:
| 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 |
18627 |
6073 |
2052 |
1048 |
190 |
82 |
102 |
0 |
| OW |
0 |
54 |
101 |
294 |
132 |
55 |
64 |
0 |
| VODI |
0 |
39 |
57 |
258 |
145 |
89 |
124 |
0 |
| ODI |
0 |
31 |
10 |
128 |
123 |
157 |
291 |
0 |
| CDI |
0 |
61 |
45 |
125 |
148 |
204 |
818 |
0 |
| VCDI |
0 |
0 |
2 |
28 |
67 |
146 |
3175 |
3014 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18627 |
6000 |
1985 |
1060 |
240 |
104 |
126 |
0 |
| OW |
0 |
60 |
146 |
286 |
106 |
67 |
53 |
0 |
| VODI |
0 |
57 |
63 |
207 |
137 |
103 |
177 |
0 |
| ODI |
0 |
55 |
21 |
130 |
108 |
120 |
300 |
0 |
| CDI |
0 |
85 |
50 |
175 |
138 |
183 |
703 |
0 |
| VCDI |
0 |
1 |
2 |
23 |
76 |
156 |
3215 |
3014 |
|
Date: 2022-06-29:
| 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 |
18826 |
6076 |
2135 |
1014 |
189 |
75 |
111 |
0 |
| OW |
0 |
48 |
77 |
274 |
130 |
61 |
68 |
0 |
| VODI |
0 |
32 |
34 |
158 |
161 |
98 |
156 |
0 |
| ODI |
0 |
28 |
9 |
62 |
109 |
129 |
321 |
0 |
| CDI |
0 |
65 |
16 |
72 |
128 |
129 |
906 |
0 |
| VCDI |
0 |
1 |
4 |
46 |
61 |
144 |
3185 |
3021 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18826 |
5986 |
2035 |
1023 |
223 |
84 |
130 |
0 |
| OW |
0 |
64 |
136 |
210 |
122 |
72 |
74 |
0 |
| VODI |
0 |
55 |
62 |
188 |
140 |
97 |
206 |
0 |
| ODI |
0 |
52 |
16 |
74 |
93 |
106 |
304 |
0 |
| CDI |
0 |
92 |
23 |
103 |
151 |
147 |
884 |
3 |
| VCDI |
0 |
1 |
3 |
28 |
49 |
130 |
3149 |
3018 |
|
Date: 2022-07-01:
| 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 |
18804 |
7042 |
1375 |
778 |
290 |
148 |
134 |
0 |
| OW |
0 |
57 |
57 |
145 |
157 |
116 |
82 |
0 |
| VODI |
0 |
38 |
31 |
65 |
183 |
157 |
169 |
0 |
| ODI |
0 |
18 |
16 |
30 |
89 |
156 |
319 |
0 |
| CDI |
0 |
35 |
27 |
61 |
105 |
231 |
1007 |
0 |
| VCDI |
0 |
0 |
13 |
35 |
50 |
97 |
2993 |
3049 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18804 |
6998 |
1293 |
746 |
278 |
177 |
158 |
0 |
| OW |
0 |
65 |
118 |
138 |
140 |
110 |
105 |
0 |
| VODI |
0 |
47 |
48 |
95 |
181 |
161 |
203 |
0 |
| ODI |
0 |
41 |
12 |
38 |
108 |
105 |
299 |
0 |
| CDI |
0 |
38 |
43 |
88 |
138 |
278 |
1159 |
17 |
| VCDI |
0 |
1 |
5 |
9 |
29 |
74 |
2780 |
3032 |
|
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