Validation of sea ice concentration
Bulletin date: 2022-04-07
Model vs. observations, sea ice class contingency tables
Date: 2022-04-01:
| 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 |
12694 |
5604 |
987 |
411 |
145 |
76 |
91 |
0 |
| OW |
0 |
15 |
142 |
200 |
115 |
80 |
53 |
4 |
| VODI |
0 |
4 |
97 |
172 |
173 |
210 |
82 |
9 |
| ODI |
0 |
0 |
27 |
77 |
165 |
318 |
147 |
5 |
| CDI |
0 |
0 |
3 |
35 |
139 |
527 |
592 |
18 |
| VCDI |
0 |
0 |
0 |
45 |
111 |
857 |
8004 |
5725 |
|
...date precedes bulletin
|
Date: 2022-04-05:
| 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 |
12819 |
5818 |
758 |
436 |
87 |
49 |
70 |
0 |
| OW |
0 |
31 |
152 |
175 |
83 |
54 |
42 |
0 |
| VODI |
0 |
9 |
131 |
221 |
143 |
110 |
83 |
1 |
| ODI |
0 |
5 |
36 |
232 |
192 |
183 |
146 |
57 |
| CDI |
0 |
0 |
1 |
82 |
187 |
366 |
491 |
152 |
| VCDI |
0 |
0 |
0 |
40 |
121 |
698 |
8145 |
5753 |
|
...date precedes bulletin
|
Date: 2022-04-07:
| 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 |
12498 |
5705 |
899 |
458 |
203 |
85 |
85 |
0 |
| OW |
0 |
11 |
165 |
165 |
117 |
100 |
48 |
0 |
| VODI |
0 |
0 |
104 |
173 |
157 |
153 |
100 |
7 |
| ODI |
0 |
0 |
12 |
176 |
216 |
260 |
169 |
3 |
| CDI |
0 |
0 |
3 |
88 |
154 |
380 |
582 |
6 |
| VCDI |
0 |
0 |
5 |
32 |
165 |
488 |
8929 |
5258 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12498 |
5709 |
924 |
499 |
236 |
99 |
88 |
0 |
| OW |
0 |
7 |
149 |
141 |
101 |
81 |
46 |
2 |
| VODI |
0 |
0 |
94 |
159 |
136 |
166 |
108 |
5 |
| ODI |
0 |
0 |
13 |
157 |
213 |
250 |
166 |
4 |
| CDI |
0 |
0 |
3 |
97 |
159 |
380 |
569 |
5 |
| VCDI |
0 |
0 |
5 |
39 |
167 |
490 |
8936 |
5258 |
|
Date: 2022-04-11:
| 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 |
12980 |
5616 |
846 |
576 |
103 |
28 |
45 |
0 |
| OW |
0 |
79 |
191 |
211 |
88 |
33 |
17 |
0 |
| VODI |
0 |
30 |
148 |
295 |
148 |
93 |
39 |
0 |
| ODI |
0 |
0 |
70 |
266 |
167 |
137 |
89 |
9 |
| CDI |
0 |
0 |
17 |
100 |
223 |
397 |
445 |
43 |
| VCDI |
0 |
0 |
8 |
28 |
196 |
790 |
7317 |
6291 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12980 |
5575 |
755 |
487 |
93 |
16 |
63 |
0 |
| OW |
0 |
100 |
198 |
188 |
59 |
29 |
30 |
0 |
| VODI |
0 |
45 |
166 |
254 |
105 |
89 |
53 |
0 |
| ODI |
0 |
4 |
103 |
295 |
161 |
106 |
117 |
3 |
| CDI |
0 |
1 |
42 |
182 |
238 |
317 |
326 |
37 |
| VCDI |
0 |
0 |
16 |
70 |
269 |
921 |
7363 |
6303 |
|
Date: 2022-04-13:
| 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 |
12708 |
5828 |
965 |
630 |
226 |
38 |
43 |
0 |
| OW |
0 |
49 |
168 |
203 |
109 |
46 |
16 |
0 |
| VODI |
0 |
36 |
106 |
236 |
169 |
90 |
43 |
0 |
| ODI |
0 |
7 |
66 |
155 |
153 |
161 |
109 |
1 |
| CDI |
0 |
0 |
21 |
70 |
164 |
401 |
792 |
14 |
| VCDI |
0 |
0 |
6 |
74 |
154 |
725 |
8417 |
4960 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12708 |
5796 |
778 |
406 |
174 |
33 |
77 |
0 |
| OW |
0 |
65 |
210 |
179 |
87 |
28 |
27 |
0 |
| VODI |
0 |
28 |
197 |
247 |
138 |
79 |
53 |
0 |
| ODI |
0 |
15 |
82 |
284 |
161 |
126 |
107 |
0 |
| CDI |
0 |
10 |
39 |
147 |
216 |
362 |
473 |
8 |
| VCDI |
0 |
6 |
26 |
105 |
199 |
833 |
8683 |
4967 |
|
Date: 2022-04-15:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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