Validation of sea ice concentration
Bulletin date: 2021-04-01
Model vs. observations, sea ice class contingency tables
Date: 2021-03-26:
| 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 |
12468 |
5938 |
918 |
393 |
68 |
12 |
6 |
0 |
| OW |
0 |
92 |
139 |
154 |
62 |
12 |
14 |
0 |
| VODI |
0 |
44 |
118 |
171 |
131 |
23 |
26 |
0 |
| ODI |
0 |
9 |
79 |
137 |
167 |
64 |
66 |
1 |
| CDI |
0 |
9 |
59 |
149 |
221 |
194 |
271 |
13 |
| VCDI |
0 |
0 |
64 |
187 |
826 |
898 |
7880 |
6076 |
|
...date precedes bulletin
|
Date: 2021-03-30:
| 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 |
12772 |
6138 |
968 |
405 |
104 |
19 |
4 |
0 |
| OW |
0 |
92 |
149 |
121 |
60 |
21 |
5 |
0 |
| VODI |
0 |
63 |
160 |
149 |
102 |
59 |
28 |
0 |
| ODI |
0 |
17 |
125 |
164 |
159 |
97 |
104 |
0 |
| CDI |
0 |
6 |
83 |
199 |
224 |
285 |
420 |
50 |
| VCDI |
0 |
2 |
162 |
182 |
398 |
811 |
7577 |
5675 |
|
...date precedes bulletin
|
Date: 2021-04-01:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2021-04-05:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2021-04-07:
| 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 |
12557 |
5835 |
963 |
771 |
121 |
37 |
19 |
0 |
| OW |
0 |
99 |
130 |
261 |
74 |
31 |
14 |
0 |
| VODI |
0 |
76 |
88 |
381 |
128 |
77 |
100 |
0 |
| ODI |
0 |
14 |
51 |
337 |
148 |
113 |
175 |
3 |
| CDI |
0 |
3 |
34 |
297 |
147 |
211 |
631 |
18 |
| VCDI |
0 |
0 |
28 |
403 |
556 |
843 |
8519 |
3866 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12557 |
5811 |
839 |
724 |
129 |
47 |
42 |
0 |
| OW |
0 |
107 |
135 |
181 |
65 |
30 |
28 |
0 |
| VODI |
0 |
61 |
153 |
332 |
118 |
65 |
87 |
0 |
| ODI |
0 |
25 |
61 |
330 |
118 |
102 |
166 |
2 |
| CDI |
0 |
17 |
47 |
268 |
162 |
179 |
588 |
18 |
| VCDI |
0 |
6 |
59 |
615 |
582 |
889 |
8547 |
3867 |
|
Date: 2021-04-09:
| 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 |
12652 |
6027 |
1033 |
504 |
283 |
59 |
26 |
0 |
| OW |
0 |
136 |
271 |
163 |
113 |
62 |
36 |
0 |
| VODI |
0 |
26 |
246 |
319 |
138 |
109 |
114 |
0 |
| ODI |
0 |
2 |
127 |
228 |
146 |
158 |
251 |
1 |
| CDI |
0 |
1 |
77 |
190 |
156 |
260 |
710 |
13 |
| VCDI |
0 |
2 |
167 |
373 |
610 |
626 |
7549 |
4195 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12652 |
5966 |
913 |
447 |
268 |
58 |
42 |
0 |
| OW |
0 |
124 |
204 |
130 |
94 |
51 |
33 |
0 |
| VODI |
0 |
58 |
251 |
235 |
118 |
138 |
86 |
0 |
| ODI |
0 |
25 |
169 |
202 |
136 |
128 |
208 |
2 |
| CDI |
0 |
15 |
142 |
203 |
152 |
228 |
642 |
17 |
| VCDI |
0 |
6 |
242 |
560 |
678 |
671 |
7675 |
4190 |
|
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