Validation of sea ice concentration
Bulletin date: 2023-04-06
Model vs. observations, sea ice class contingency tables
Date: 2023-03-31:
| 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 |
11961 |
5862 |
1227 |
441 |
209 |
149 |
20 |
0 |
| OW |
0 |
4 |
103 |
120 |
93 |
76 |
47 |
0 |
| VODI |
0 |
0 |
57 |
95 |
117 |
117 |
110 |
0 |
| ODI |
0 |
0 |
16 |
76 |
135 |
164 |
152 |
0 |
| CDI |
0 |
1 |
3 |
75 |
179 |
413 |
385 |
0 |
| VCDI |
0 |
8 |
2 |
99 |
316 |
977 |
11225 |
3128 |
|
...date precedes bulletin
|
Date: 2023-04-04:
| 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 |
12197 |
5955 |
1202 |
410 |
115 |
58 |
5 |
0 |
| OW |
0 |
18 |
159 |
136 |
49 |
55 |
12 |
0 |
| VODI |
0 |
6 |
81 |
170 |
89 |
105 |
39 |
0 |
| ODI |
0 |
0 |
49 |
106 |
130 |
120 |
134 |
0 |
| CDI |
0 |
1 |
31 |
111 |
189 |
281 |
380 |
0 |
| VCDI |
0 |
8 |
3 |
49 |
311 |
1188 |
11210 |
3000 |
|
...date precedes bulletin
|
Date: 2023-04-06:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2023-04-10:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2023-04-12:
| 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 |
13142 |
5827 |
622 |
470 |
128 |
27 |
19 |
0 |
| OW |
0 |
87 |
92 |
148 |
91 |
30 |
26 |
0 |
| VODI |
0 |
51 |
110 |
167 |
142 |
65 |
70 |
0 |
| ODI |
0 |
12 |
57 |
153 |
99 |
116 |
140 |
0 |
| CDI |
0 |
4 |
40 |
160 |
177 |
307 |
754 |
0 |
| VCDI |
0 |
10 |
18 |
85 |
254 |
799 |
10587 |
3076 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13142 |
5718 |
569 |
440 |
138 |
34 |
43 |
0 |
| OW |
0 |
130 |
85 |
126 |
82 |
35 |
53 |
0 |
| VODI |
0 |
90 |
105 |
133 |
101 |
73 |
90 |
0 |
| ODI |
0 |
31 |
103 |
160 |
95 |
88 |
177 |
0 |
| CDI |
0 |
13 |
74 |
221 |
216 |
279 |
634 |
0 |
| VCDI |
0 |
9 |
3 |
103 |
259 |
835 |
10599 |
3076 |
|
Date: 2023-04-14:
| 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 |
13275 |
5869 |
622 |
434 |
81 |
40 |
21 |
0 |
| OW |
0 |
106 |
93 |
181 |
92 |
31 |
35 |
0 |
| VODI |
0 |
47 |
91 |
189 |
100 |
68 |
85 |
0 |
| ODI |
0 |
19 |
65 |
110 |
102 |
85 |
128 |
0 |
| CDI |
0 |
16 |
35 |
128 |
182 |
216 |
872 |
0 |
| VCDI |
0 |
14 |
25 |
83 |
294 |
1001 |
10239 |
3088 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13275 |
5751 |
574 |
413 |
99 |
46 |
52 |
0 |
| OW |
0 |
131 |
94 |
130 |
75 |
46 |
53 |
0 |
| VODI |
0 |
98 |
83 |
136 |
82 |
68 |
137 |
0 |
| ODI |
0 |
50 |
87 |
146 |
77 |
56 |
169 |
0 |
| CDI |
0 |
32 |
82 |
188 |
196 |
189 |
665 |
0 |
| VCDI |
0 |
9 |
11 |
112 |
322 |
1036 |
10304 |
3088 |
|
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