Validation of sea ice concentration
Bulletin date: 2023-03-30
Model vs. observations, sea ice class contingency tables
Date: 2023-03-24:
| 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 |
11874 |
6069 |
1184 |
484 |
256 |
160 |
61 |
0 |
| OW |
0 |
18 |
62 |
83 |
98 |
117 |
58 |
0 |
| VODI |
0 |
20 |
44 |
50 |
118 |
148 |
102 |
10 |
| ODI |
0 |
2 |
41 |
25 |
62 |
155 |
136 |
15 |
| CDI |
0 |
0 |
41 |
44 |
67 |
280 |
282 |
43 |
| VCDI |
0 |
0 |
9 |
78 |
102 |
503 |
8884 |
6374 |
|
...date precedes bulletin
|
Date: 2023-03-28:
| 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 |
11760 |
6036 |
1230 |
468 |
245 |
90 |
58 |
0 |
| OW |
0 |
1 |
86 |
119 |
117 |
61 |
40 |
0 |
| VODI |
0 |
0 |
51 |
87 |
128 |
128 |
99 |
0 |
| ODI |
0 |
0 |
13 |
48 |
80 |
119 |
166 |
0 |
| CDI |
0 |
0 |
7 |
48 |
140 |
315 |
445 |
0 |
| VCDI |
0 |
9 |
2 |
31 |
305 |
1152 |
11884 |
2594 |
|
...date precedes bulletin
|
Date: 2023-03-30:
| 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 |
11736 |
6051 |
1243 |
391 |
264 |
146 |
45 |
0 |
| OW |
0 |
17 |
122 |
75 |
97 |
74 |
64 |
0 |
| VODI |
0 |
0 |
79 |
48 |
97 |
123 |
123 |
0 |
| ODI |
0 |
0 |
31 |
35 |
74 |
144 |
170 |
0 |
| CDI |
0 |
0 |
12 |
66 |
133 |
294 |
497 |
0 |
| VCDI |
0 |
9 |
2 |
58 |
297 |
946 |
11509 |
3090 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11736 |
6061 |
1251 |
400 |
272 |
151 |
48 |
0 |
| OW |
0 |
7 |
109 |
71 |
95 |
66 |
68 |
0 |
| VODI |
0 |
0 |
84 |
44 |
92 |
134 |
124 |
0 |
| ODI |
0 |
0 |
33 |
39 |
73 |
145 |
165 |
0 |
| CDI |
0 |
0 |
11 |
60 |
137 |
298 |
482 |
0 |
| VCDI |
0 |
9 |
1 |
59 |
293 |
933 |
11521 |
3090 |
|
Date: 2023-04-03:
| 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 |
11933 |
5752 |
1360 |
621 |
135 |
82 |
26 |
0 |
| OW |
0 |
5 |
135 |
135 |
70 |
59 |
24 |
0 |
| VODI |
0 |
0 |
75 |
156 |
127 |
116 |
39 |
0 |
| ODI |
0 |
0 |
36 |
99 |
126 |
168 |
103 |
0 |
| CDI |
0 |
0 |
4 |
82 |
186 |
364 |
460 |
0 |
| VCDI |
0 |
9 |
1 |
20 |
218 |
1083 |
11227 |
3126 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11933 |
5744 |
1343 |
632 |
148 |
104 |
36 |
0 |
| OW |
0 |
13 |
129 |
125 |
71 |
70 |
36 |
0 |
| VODI |
0 |
0 |
90 |
114 |
87 |
118 |
77 |
0 |
| ODI |
0 |
0 |
40 |
97 |
82 |
105 |
115 |
0 |
| CDI |
0 |
0 |
8 |
89 |
187 |
313 |
418 |
0 |
| VCDI |
0 |
9 |
1 |
56 |
287 |
1162 |
11197 |
3126 |
|
Date: 2023-04-05:
| 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 |
12175 |
5935 |
1235 |
300 |
203 |
68 |
34 |
0 |
| OW |
0 |
3 |
177 |
120 |
70 |
40 |
36 |
0 |
| VODI |
0 |
0 |
75 |
130 |
105 |
76 |
74 |
0 |
| ODI |
0 |
0 |
52 |
100 |
105 |
146 |
136 |
0 |
| CDI |
0 |
0 |
20 |
108 |
151 |
261 |
344 |
0 |
| VCDI |
0 |
9 |
6 |
54 |
237 |
848 |
11565 |
3164 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12175 |
5929 |
1191 |
304 |
210 |
81 |
52 |
0 |
| OW |
0 |
9 |
180 |
86 |
56 |
40 |
63 |
0 |
| VODI |
0 |
0 |
111 |
110 |
80 |
66 |
106 |
0 |
| ODI |
0 |
0 |
44 |
89 |
78 |
110 |
139 |
0 |
| CDI |
0 |
0 |
32 |
122 |
170 |
282 |
383 |
0 |
| VCDI |
0 |
9 |
7 |
101 |
277 |
860 |
11446 |
3164 |
|
Date: 2023-04-07:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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