Validation of sea ice concentration
Bulletin date: 2022-07-07
Model vs. observations, sea ice class contingency tables
Date: 2022-07-01:
| 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 |
18804 |
7042 |
1375 |
778 |
290 |
148 |
134 |
0 |
| OW |
0 |
57 |
57 |
145 |
157 |
116 |
82 |
0 |
| VODI |
0 |
38 |
31 |
65 |
183 |
157 |
169 |
0 |
| ODI |
0 |
18 |
16 |
30 |
89 |
156 |
319 |
0 |
| CDI |
0 |
35 |
27 |
61 |
105 |
231 |
1007 |
0 |
| VCDI |
0 |
0 |
13 |
35 |
50 |
97 |
2993 |
3049 |
|
...date precedes bulletin
|
Date: 2022-07-05:
| 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 |
18849 |
6956 |
1970 |
582 |
259 |
172 |
102 |
0 |
| OW |
0 |
12 |
91 |
151 |
116 |
89 |
61 |
0 |
| VODI |
0 |
11 |
21 |
110 |
181 |
210 |
150 |
0 |
| ODI |
0 |
7 |
9 |
33 |
79 |
158 |
265 |
0 |
| CDI |
0 |
3 |
26 |
56 |
100 |
253 |
1429 |
292 |
| VCDI |
0 |
0 |
0 |
13 |
25 |
49 |
1550 |
3719 |
|
...date precedes bulletin
|
Date: 2022-07-07:
| 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 |
18837 |
7183 |
1721 |
807 |
258 |
136 |
101 |
0 |
| OW |
0 |
7 |
40 |
181 |
138 |
86 |
65 |
0 |
| VODI |
0 |
7 |
24 |
108 |
167 |
160 |
169 |
0 |
| ODI |
0 |
2 |
17 |
27 |
76 |
113 |
213 |
0 |
| CDI |
0 |
1 |
7 |
71 |
92 |
292 |
1552 |
596 |
| VCDI |
0 |
0 |
7 |
27 |
25 |
101 |
1609 |
3136 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18837 |
7181 |
1711 |
840 |
263 |
152 |
107 |
0 |
| OW |
0 |
7 |
48 |
144 |
127 |
85 |
56 |
0 |
| VODI |
0 |
9 |
27 |
113 |
171 |
146 |
162 |
0 |
| ODI |
0 |
1 |
17 |
28 |
86 |
110 |
197 |
0 |
| CDI |
0 |
2 |
6 |
70 |
83 |
298 |
1585 |
580 |
| VCDI |
0 |
0 |
7 |
26 |
26 |
97 |
1602 |
3152 |
|
Date: 2022-07-11:
| 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 |
18686 |
7432 |
1763 |
812 |
374 |
172 |
96 |
0 |
| OW |
0 |
3 |
48 |
183 |
140 |
77 |
49 |
0 |
| VODI |
0 |
1 |
20 |
92 |
124 |
168 |
117 |
0 |
| ODI |
0 |
2 |
4 |
39 |
68 |
138 |
319 |
0 |
| CDI |
0 |
0 |
19 |
70 |
69 |
200 |
1689 |
1027 |
| VCDI |
0 |
0 |
0 |
1 |
3 |
29 |
1190 |
2935 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18686 |
7417 |
1714 |
767 |
370 |
189 |
101 |
0 |
| OW |
0 |
12 |
68 |
182 |
123 |
91 |
60 |
0 |
| VODI |
0 |
7 |
25 |
107 |
118 |
143 |
134 |
0 |
| ODI |
0 |
2 |
18 |
38 |
70 |
72 |
218 |
0 |
| CDI |
0 |
0 |
27 |
101 |
94 |
247 |
1688 |
871 |
| VCDI |
0 |
0 |
2 |
2 |
3 |
42 |
1259 |
3091 |
|
Date: 2022-07-13:
| 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 |
19068 |
6808 |
2436 |
779 |
287 |
147 |
69 |
0 |
| OW |
0 |
2 |
73 |
149 |
122 |
83 |
36 |
0 |
| VODI |
0 |
3 |
24 |
96 |
120 |
142 |
110 |
0 |
| ODI |
0 |
0 |
2 |
35 |
63 |
125 |
319 |
0 |
| CDI |
0 |
0 |
3 |
70 |
113 |
236 |
1612 |
1149 |
| VCDI |
0 |
0 |
0 |
2 |
8 |
45 |
1031 |
2792 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
19068 |
6800 |
2358 |
723 |
280 |
172 |
63 |
0 |
| OW |
0 |
10 |
110 |
172 |
109 |
83 |
37 |
0 |
| VODI |
0 |
1 |
47 |
83 |
105 |
103 |
118 |
0 |
| ODI |
0 |
2 |
15 |
48 |
74 |
89 |
236 |
0 |
| CDI |
0 |
0 |
8 |
104 |
136 |
279 |
1695 |
1143 |
| VCDI |
0 |
0 |
0 |
1 |
9 |
52 |
1028 |
2798 |
|
Date: 2022-07-15:
| 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 |
18480 |
7646 |
2533 |
638 |
210 |
160 |
62 |
0 |
| OW |
0 |
2 |
121 |
131 |
117 |
67 |
31 |
0 |
| VODI |
0 |
3 |
61 |
89 |
96 |
118 |
97 |
0 |
| ODI |
0 |
0 |
16 |
34 |
75 |
165 |
239 |
0 |
| CDI |
0 |
0 |
15 |
56 |
121 |
254 |
1593 |
1271 |
| VCDI |
0 |
0 |
0 |
1 |
4 |
25 |
812 |
2816 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18480 |
7619 |
2468 |
608 |
215 |
166 |
58 |
0 |
| OW |
0 |
15 |
123 |
144 |
117 |
73 |
33 |
0 |
| VODI |
0 |
14 |
74 |
72 |
72 |
82 |
88 |
0 |
| ODI |
0 |
3 |
38 |
36 |
67 |
136 |
185 |
0 |
| CDI |
0 |
0 |
43 |
88 |
146 |
289 |
1666 |
1320 |
| VCDI |
0 |
0 |
0 |
1 |
6 |
43 |
804 |
2767 |
|
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