Validation of sea ice concentration
Bulletin date: 2023-04-13
Model vs. observations, sea ice class contingency tables
Date: 2023-04-07:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2023-04-11:
| 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 |
12873 |
5940 |
751 |
404 |
201 |
39 |
17 |
0 |
| OW |
0 |
76 |
102 |
105 |
104 |
37 |
26 |
0 |
| VODI |
0 |
23 |
116 |
130 |
154 |
94 |
66 |
0 |
| ODI |
0 |
8 |
76 |
98 |
122 |
122 |
142 |
0 |
| CDI |
0 |
6 |
35 |
129 |
162 |
293 |
751 |
0 |
| VCDI |
0 |
7 |
27 |
52 |
266 |
725 |
10699 |
3184 |
|
...date precedes bulletin
|
Date: 2023-04-13:
| 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 |
13237 |
5819 |
630 |
424 |
114 |
27 |
21 |
0 |
| OW |
0 |
92 |
102 |
159 |
87 |
42 |
35 |
0 |
| VODI |
0 |
61 |
86 |
195 |
123 |
65 |
75 |
0 |
| ODI |
0 |
16 |
53 |
141 |
95 |
92 |
143 |
0 |
| CDI |
0 |
6 |
58 |
154 |
184 |
262 |
698 |
0 |
| VCDI |
0 |
9 |
10 |
103 |
285 |
880 |
10502 |
3077 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13237 |
5838 |
649 |
437 |
120 |
31 |
29 |
0 |
| OW |
0 |
75 |
85 |
133 |
83 |
40 |
33 |
0 |
| VODI |
0 |
62 |
83 |
206 |
114 |
67 |
73 |
0 |
| ODI |
0 |
13 |
57 |
136 |
100 |
81 |
133 |
0 |
| CDI |
0 |
6 |
56 |
154 |
176 |
259 |
676 |
0 |
| VCDI |
0 |
9 |
9 |
110 |
295 |
890 |
10530 |
3077 |
|
Date: 2023-04-17:
| 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 |
13197 |
5935 |
696 |
498 |
131 |
46 |
13 |
0 |
| OW |
0 |
89 |
142 |
177 |
84 |
36 |
22 |
0 |
| VODI |
0 |
56 |
110 |
228 |
134 |
76 |
37 |
0 |
| ODI |
0 |
13 |
48 |
100 |
146 |
154 |
143 |
0 |
| CDI |
0 |
4 |
31 |
91 |
170 |
393 |
720 |
0 |
| VCDI |
0 |
23 |
15 |
122 |
328 |
1542 |
9701 |
2711 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13197 |
5914 |
708 |
514 |
147 |
60 |
28 |
0 |
| OW |
0 |
94 |
88 |
134 |
75 |
43 |
17 |
0 |
| VODI |
0 |
58 |
127 |
196 |
85 |
70 |
48 |
0 |
| ODI |
0 |
27 |
63 |
127 |
106 |
85 |
151 |
0 |
| CDI |
0 |
15 |
45 |
108 |
193 |
264 |
642 |
0 |
| VCDI |
0 |
12 |
11 |
137 |
387 |
1725 |
9750 |
2711 |
|
Date: 2023-04-19:
| 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 |
13064 |
5979 |
883 |
433 |
203 |
149 |
40 |
0 |
| OW |
0 |
47 |
183 |
115 |
87 |
89 |
55 |
0 |
| VODI |
0 |
12 |
112 |
124 |
96 |
98 |
101 |
0 |
| ODI |
0 |
0 |
45 |
66 |
80 |
135 |
184 |
0 |
| CDI |
0 |
1 |
41 |
66 |
122 |
230 |
767 |
0 |
| VCDI |
0 |
8 |
21 |
84 |
292 |
991 |
10329 |
2830 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13064 |
5935 |
836 |
431 |
179 |
163 |
57 |
0 |
| OW |
0 |
68 |
135 |
88 |
86 |
52 |
46 |
0 |
| VODI |
0 |
26 |
169 |
97 |
84 |
78 |
97 |
0 |
| ODI |
0 |
9 |
79 |
89 |
67 |
116 |
191 |
0 |
| CDI |
0 |
1 |
49 |
87 |
130 |
212 |
672 |
0 |
| VCDI |
0 |
8 |
17 |
96 |
334 |
1071 |
10413 |
2830 |
|
Date: 2023-04-21:
| 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 |
12828 |
6070 |
951 |
489 |
194 |
53 |
7 |
0 |
| OW |
0 |
72 |
201 |
109 |
74 |
84 |
9 |
0 |
| VODI |
0 |
23 |
159 |
116 |
90 |
127 |
46 |
0 |
| ODI |
0 |
2 |
66 |
102 |
129 |
146 |
164 |
0 |
| CDI |
0 |
1 |
53 |
96 |
180 |
276 |
759 |
0 |
| VCDI |
0 |
8 |
35 |
104 |
287 |
869 |
10049 |
3134 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12828 |
6044 |
881 |
491 |
203 |
99 |
13 |
0 |
| OW |
0 |
76 |
206 |
89 |
50 |
64 |
20 |
0 |
| VODI |
0 |
38 |
162 |
101 |
92 |
119 |
64 |
0 |
| ODI |
0 |
7 |
100 |
71 |
102 |
119 |
172 |
0 |
| CDI |
0 |
2 |
75 |
112 |
176 |
248 |
661 |
0 |
| VCDI |
0 |
9 |
41 |
152 |
331 |
906 |
10104 |
3134 |
|
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