Validation of sea ice concentration
Bulletin date: 2022-06-30
Model vs. observations, sea ice class contingency tables
Date: 2022-06-24:
| 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 |
18223 |
5930 |
1809 |
1040 |
220 |
74 |
115 |
0 |
| OW |
0 |
47 |
183 |
501 |
217 |
109 |
60 |
0 |
| VODI |
0 |
50 |
51 |
250 |
247 |
156 |
172 |
0 |
| ODI |
0 |
40 |
25 |
82 |
143 |
160 |
396 |
0 |
| CDI |
0 |
63 |
88 |
117 |
202 |
126 |
649 |
0 |
| VCDI |
0 |
0 |
8 |
25 |
63 |
67 |
2341 |
4110 |
|
...date precedes bulletin
|
Date: 2022-06-28:
| 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 |
18632 |
6112 |
2066 |
1158 |
208 |
84 |
108 |
0 |
| OW |
0 |
49 |
74 |
258 |
149 |
46 |
69 |
0 |
| VODI |
0 |
36 |
27 |
184 |
185 |
101 |
121 |
0 |
| ODI |
0 |
29 |
10 |
58 |
151 |
143 |
306 |
0 |
| CDI |
0 |
68 |
23 |
78 |
171 |
154 |
843 |
0 |
| VCDI |
0 |
0 |
5 |
31 |
80 |
141 |
3177 |
3024 |
|
...date precedes bulletin
|
Date: 2022-06-30:
| 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 |
18860 |
6919 |
1334 |
1011 |
160 |
84 |
123 |
0 |
| OW |
0 |
68 |
53 |
270 |
120 |
55 |
79 |
0 |
| VODI |
0 |
37 |
31 |
147 |
182 |
75 |
154 |
0 |
| ODI |
0 |
25 |
16 |
67 |
110 |
131 |
307 |
0 |
| CDI |
0 |
52 |
16 |
73 |
115 |
141 |
960 |
0 |
| VCDI |
0 |
0 |
6 |
48 |
54 |
98 |
3136 |
3042 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18860 |
6941 |
1322 |
1059 |
171 |
91 |
131 |
0 |
| OW |
0 |
49 |
66 |
217 |
120 |
51 |
68 |
0 |
| VODI |
0 |
35 |
30 |
152 |
172 |
76 |
164 |
0 |
| ODI |
0 |
25 |
15 |
66 |
116 |
122 |
276 |
0 |
| CDI |
0 |
50 |
18 |
79 |
108 |
153 |
1032 |
0 |
| VCDI |
0 |
1 |
5 |
43 |
54 |
91 |
3088 |
3042 |
|
Date: 2022-07-04:
| 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 |
18692 |
7000 |
1808 |
654 |
356 |
158 |
105 |
0 |
| OW |
0 |
27 |
89 |
154 |
137 |
97 |
50 |
0 |
| VODI |
0 |
16 |
21 |
90 |
198 |
202 |
150 |
0 |
| ODI |
0 |
6 |
11 |
29 |
116 |
206 |
297 |
0 |
| CDI |
0 |
3 |
42 |
48 |
105 |
244 |
1292 |
51 |
| VCDI |
0 |
0 |
5 |
14 |
28 |
44 |
1681 |
3933 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18692 |
6974 |
1771 |
674 |
383 |
186 |
117 |
0 |
| OW |
0 |
32 |
77 |
105 |
131 |
90 |
71 |
0 |
| VODI |
0 |
19 |
52 |
92 |
161 |
154 |
141 |
0 |
| ODI |
0 |
15 |
17 |
41 |
100 |
152 |
211 |
0 |
| CDI |
0 |
12 |
48 |
53 |
132 |
323 |
1167 |
9 |
| VCDI |
0 |
0 |
11 |
24 |
33 |
46 |
1868 |
3975 |
|
Date: 2022-07-06:
| 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 |
18764 |
6974 |
1786 |
851 |
289 |
197 |
105 |
0 |
| OW |
0 |
9 |
35 |
150 |
151 |
111 |
60 |
0 |
| VODI |
0 |
11 |
15 |
79 |
166 |
233 |
167 |
0 |
| ODI |
0 |
9 |
6 |
17 |
77 |
152 |
234 |
0 |
| CDI |
0 |
5 |
16 |
52 |
75 |
250 |
1553 |
521 |
| VCDI |
0 |
0 |
0 |
16 |
19 |
43 |
1577 |
3384 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18764 |
6934 |
1710 |
812 |
304 |
231 |
121 |
0 |
| OW |
0 |
31 |
69 |
117 |
106 |
92 |
78 |
0 |
| VODI |
0 |
16 |
46 |
118 |
145 |
162 |
114 |
0 |
| ODI |
0 |
14 |
12 |
42 |
95 |
150 |
195 |
0 |
| CDI |
0 |
13 |
21 |
51 |
103 |
297 |
1423 |
472 |
| VCDI |
0 |
0 |
0 |
25 |
24 |
54 |
1765 |
3433 |
|
Date: 2022-07-08:
| 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 |
18699 |
7334 |
1647 |
732 |
363 |
182 |
105 |
0 |
| OW |
0 |
17 |
52 |
125 |
169 |
116 |
72 |
0 |
| VODI |
0 |
7 |
35 |
65 |
153 |
162 |
170 |
0 |
| ODI |
0 |
4 |
16 |
25 |
59 |
77 |
254 |
0 |
| CDI |
0 |
0 |
7 |
60 |
114 |
243 |
1647 |
609 |
| VCDI |
0 |
0 |
0 |
21 |
27 |
79 |
1633 |
3079 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
18699 |
7285 |
1559 |
688 |
370 |
218 |
118 |
0 |
| OW |
0 |
41 |
83 |
105 |
108 |
77 |
79 |
0 |
| VODI |
0 |
21 |
69 |
105 |
152 |
130 |
134 |
0 |
| ODI |
0 |
11 |
25 |
32 |
86 |
93 |
205 |
0 |
| CDI |
0 |
4 |
19 |
73 |
139 |
258 |
1668 |
689 |
| VCDI |
0 |
0 |
2 |
25 |
30 |
83 |
1677 |
2999 |
|
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