Validation of sea ice concentration - Full domain
Bulletin date: 2025-01-09
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-01-03:
| 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 |
77371 |
15032 |
328 |
403 |
23 |
0 |
0 |
0 |
| OW |
117 |
1496 |
427 |
1049 |
441 |
54 |
0 |
0 |
| VODI |
8 |
461 |
219 |
997 |
654 |
217 |
54 |
0 |
| ODI |
1 |
151 |
62 |
607 |
855 |
455 |
144 |
0 |
| CDI |
7 |
121 |
54 |
548 |
1133 |
2133 |
926 |
8 |
| VCDI |
2 |
111 |
62 |
407 |
1061 |
6904 |
24288 |
55352 |
|
...date precedes bulletin
|
Date: 2025-01-05:
| 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 |
75622 |
16255 |
442 |
519 |
137 |
2 |
0 |
0 |
| OW |
122 |
1315 |
415 |
1073 |
343 |
60 |
0 |
0 |
| VODI |
7 |
505 |
217 |
1039 |
655 |
178 |
0 |
0 |
| ODI |
0 |
156 |
59 |
549 |
822 |
431 |
44 |
0 |
| CDI |
2 |
125 |
43 |
428 |
1177 |
1814 |
837 |
23 |
| VCDI |
8 |
106 |
58 |
355 |
964 |
5936 |
21630 |
60270 |
|
...date precedes bulletin
|
Date: 2025-01-07:
| 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 |
73356 |
17627 |
547 |
696 |
90 |
44 |
0 |
0 |
| OW |
43 |
1076 |
398 |
1073 |
405 |
37 |
0 |
0 |
| VODI |
7 |
137 |
107 |
1321 |
1250 |
130 |
0 |
0 |
| ODI |
0 |
41 |
31 |
374 |
996 |
540 |
12 |
0 |
| CDI |
0 |
22 |
18 |
205 |
887 |
2025 |
1098 |
49 |
| VCDI |
10 |
3 |
3 |
53 |
618 |
4852 |
20917 |
63645 |
|
...date precedes bulletin
|
Date: 2025-01-09:
| 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 |
71884 |
17689 |
494 |
678 |
104 |
41 |
3 |
0 |
| OW |
20 |
1037 |
309 |
1016 |
569 |
80 |
9 |
0 |
| VODI |
8 |
158 |
87 |
961 |
1101 |
472 |
7 |
0 |
| ODI |
0 |
40 |
15 |
295 |
1125 |
799 |
63 |
0 |
| CDI |
0 |
24 |
14 |
155 |
979 |
2675 |
1635 |
29 |
| VCDI |
0 |
15 |
5 |
45 |
283 |
4258 |
23308 |
62254 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71890 |
18200 |
602 |
1023 |
156 |
64 |
5 |
0 |
| OW |
18 |
567 |
247 |
1066 |
694 |
84 |
8 |
0 |
| VODI |
4 |
121 |
53 |
681 |
1263 |
650 |
4 |
0 |
| ODI |
0 |
44 |
10 |
218 |
996 |
978 |
128 |
2 |
| CDI |
0 |
17 |
7 |
128 |
824 |
2565 |
2020 |
123 |
| VCDI |
0 |
14 |
5 |
34 |
228 |
3984 |
22860 |
62158 |
|
Date: 2025-01-11:
| 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 |
72304 |
16609 |
486 |
542 |
18 |
6 |
0 |
0 |
| OW |
56 |
1344 |
340 |
885 |
362 |
84 |
1 |
0 |
| VODI |
6 |
275 |
118 |
954 |
1048 |
355 |
167 |
0 |
| ODI |
0 |
67 |
35 |
358 |
1114 |
682 |
255 |
5 |
| CDI |
0 |
35 |
38 |
259 |
1059 |
2240 |
1005 |
99 |
| VCDI |
0 |
15 |
13 |
144 |
656 |
4534 |
20276 |
65894 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72339 |
17262 |
603 |
839 |
108 |
9 |
0 |
0 |
| OW |
24 |
822 |
281 |
951 |
586 |
145 |
7 |
0 |
| VODI |
3 |
177 |
84 |
750 |
1066 |
499 |
251 |
0 |
| ODI |
0 |
46 |
32 |
320 |
980 |
916 |
313 |
11 |
| CDI |
0 |
26 |
22 |
210 |
950 |
2174 |
1432 |
64 |
| VCDI |
0 |
12 |
8 |
72 |
567 |
4158 |
19701 |
65923 |
|
Date: 2025-01-13:
| 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 |
74204 |
14895 |
398 |
330 |
16 |
0 |
0 |
0 |
| OW |
36 |
1422 |
416 |
816 |
182 |
3 |
0 |
0 |
| VODI |
0 |
131 |
113 |
1235 |
873 |
44 |
0 |
0 |
| ODI |
0 |
22 |
19 |
304 |
1532 |
500 |
2 |
0 |
| CDI |
0 |
31 |
33 |
183 |
1043 |
3150 |
297 |
20 |
| VCDI |
0 |
5 |
5 |
130 |
643 |
4565 |
25781 |
61364 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
74217 |
14897 |
480 |
580 |
58 |
0 |
0 |
0 |
| OW |
23 |
1121 |
286 |
935 |
432 |
38 |
0 |
0 |
| VODI |
0 |
331 |
108 |
747 |
1019 |
469 |
17 |
0 |
| ODI |
0 |
86 |
42 |
321 |
886 |
1028 |
360 |
0 |
| CDI |
0 |
44 |
46 |
235 |
1134 |
2168 |
1203 |
99 |
| VCDI |
0 |
27 |
22 |
180 |
760 |
4559 |
24500 |
61285 |
|
Date: 2025-01-15:
| 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 |
73248 |
15264 |
312 |
425 |
5 |
9 |
0 |
0 |
| OW |
132 |
1267 |
343 |
916 |
178 |
47 |
0 |
0 |
| VODI |
18 |
254 |
125 |
885 |
817 |
161 |
0 |
0 |
| ODI |
3 |
71 |
40 |
315 |
731 |
602 |
40 |
0 |
| CDI |
0 |
17 |
40 |
254 |
964 |
2453 |
1379 |
68 |
| VCDI |
10 |
2 |
6 |
96 |
602 |
4320 |
29247 |
59077 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73189 |
15151 |
358 |
589 |
39 |
14 |
0 |
0 |
| OW |
174 |
1118 |
257 |
819 |
334 |
98 |
0 |
0 |
| VODI |
37 |
449 |
117 |
738 |
807 |
517 |
68 |
0 |
| ODI |
1 |
106 |
68 |
315 |
613 |
933 |
395 |
3 |
| CDI |
0 |
48 |
39 |
284 |
847 |
1884 |
1978 |
96 |
| VCDI |
10 |
3 |
27 |
146 |
657 |
4146 |
28225 |
59046 |
|
Date: 2025-01-17:
| 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 |
71475 |
16534 |
418 |
395 |
15 |
9 |
0 |
0 |
| OW |
157 |
1212 |
295 |
898 |
164 |
31 |
0 |
0 |
| VODI |
16 |
395 |
145 |
880 |
652 |
171 |
2 |
0 |
| ODI |
3 |
89 |
63 |
380 |
761 |
511 |
46 |
0 |
| CDI |
3 |
25 |
47 |
350 |
991 |
1764 |
1131 |
55 |
| VCDI |
7 |
0 |
11 |
105 |
611 |
3873 |
24874 |
65179 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71374 |
16359 |
382 |
648 |
52 |
15 |
0 |
0 |
| OW |
209 |
1049 |
207 |
523 |
363 |
84 |
1 |
0 |
| VODI |
66 |
529 |
231 |
834 |
493 |
305 |
57 |
0 |
| ODI |
2 |
183 |
64 |
502 |
646 |
686 |
263 |
11 |
| CDI |
4 |
87 |
64 |
310 |
923 |
1578 |
2127 |
202 |
| VCDI |
6 |
48 |
31 |
191 |
717 |
3691 |
23605 |
65021 |
|
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