Validation of sea ice concentration
Bulletin date: 2023-12-28
Model vs. observations, sea ice class contingency tables
Date: 2023-12-22:
| 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 |
13576 |
6685 |
813 |
247 |
121 |
51 |
19 |
0 |
| OW |
0 |
83 |
159 |
105 |
115 |
108 |
6 |
0 |
| VODI |
0 |
80 |
128 |
157 |
212 |
301 |
19 |
0 |
| ODI |
0 |
27 |
64 |
113 |
189 |
474 |
111 |
1 |
| CDI |
0 |
13 |
57 |
67 |
89 |
479 |
510 |
9 |
| VCDI |
0 |
2 |
54 |
138 |
241 |
820 |
7357 |
4359 |
|
...date precedes bulletin
|
Date: 2023-12-26:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2023-12-28:
| 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 |
13688 |
6718 |
568 |
166 |
38 |
7 |
1 |
0 |
| OW |
0 |
182 |
210 |
117 |
31 |
15 |
3 |
0 |
| VODI |
0 |
51 |
189 |
209 |
97 |
65 |
14 |
0 |
| ODI |
0 |
9 |
68 |
154 |
153 |
272 |
127 |
7 |
| CDI |
0 |
11 |
36 |
121 |
117 |
305 |
434 |
53 |
| VCDI |
0 |
2 |
76 |
189 |
238 |
853 |
8736 |
3829 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13688 |
6775 |
636 |
190 |
42 |
7 |
1 |
0 |
| OW |
0 |
135 |
179 |
103 |
39 |
19 |
5 |
0 |
| VODI |
0 |
41 |
163 |
199 |
86 |
55 |
14 |
0 |
| ODI |
0 |
9 |
58 |
158 |
144 |
267 |
144 |
9 |
| CDI |
0 |
11 |
31 |
109 |
126 |
324 |
444 |
56 |
| VCDI |
0 |
2 |
80 |
197 |
237 |
845 |
8707 |
3824 |
|
Date: 2024-01-01:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2024-01-03:
| 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 |
13494 |
6624 |
659 |
252 |
39 |
1 |
0 |
0 |
| OW |
0 |
69 |
182 |
159 |
58 |
13 |
0 |
0 |
| VODI |
0 |
53 |
108 |
208 |
139 |
37 |
2 |
0 |
| ODI |
0 |
11 |
68 |
216 |
146 |
129 |
44 |
3 |
| CDI |
0 |
3 |
24 |
169 |
176 |
376 |
203 |
29 |
| VCDI |
0 |
8 |
44 |
261 |
346 |
1374 |
9607 |
2825 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13494 |
6400 |
412 |
142 |
32 |
3 |
0 |
0 |
| OW |
0 |
181 |
235 |
108 |
40 |
6 |
1 |
0 |
| VODI |
0 |
105 |
153 |
210 |
90 |
23 |
2 |
0 |
| ODI |
0 |
55 |
103 |
192 |
101 |
97 |
23 |
0 |
| CDI |
0 |
21 |
97 |
212 |
218 |
304 |
223 |
12 |
| VCDI |
0 |
6 |
85 |
401 |
423 |
1497 |
9607 |
2845 |
|
Date: 2024-01-05:
| 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 |
12965 |
6410 |
826 |
305 |
142 |
39 |
5 |
0 |
| OW |
0 |
41 |
165 |
88 |
85 |
67 |
19 |
0 |
| VODI |
0 |
11 |
177 |
135 |
77 |
128 |
47 |
0 |
| ODI |
0 |
0 |
100 |
160 |
73 |
108 |
83 |
0 |
| CDI |
0 |
0 |
39 |
117 |
145 |
189 |
337 |
5 |
| VCDI |
0 |
0 |
71 |
137 |
275 |
741 |
8322 |
5525 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12965 |
6228 |
587 |
232 |
117 |
30 |
20 |
0 |
| OW |
0 |
133 |
193 |
99 |
64 |
37 |
27 |
0 |
| VODI |
0 |
50 |
178 |
97 |
88 |
114 |
41 |
0 |
| ODI |
0 |
25 |
123 |
90 |
59 |
146 |
80 |
0 |
| CDI |
0 |
12 |
111 |
133 |
122 |
202 |
315 |
39 |
| VCDI |
0 |
14 |
186 |
291 |
347 |
743 |
8330 |
5491 |
|
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