Validation of sea ice concentration - Full domain
Bulletin date: 2025-01-16
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-01-10:
| 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 |
72278 |
16932 |
462 |
582 |
96 |
12 |
0 |
0 |
| OW |
38 |
1175 |
358 |
813 |
453 |
136 |
1 |
0 |
| VODI |
11 |
220 |
149 |
923 |
1084 |
481 |
124 |
0 |
| ODI |
0 |
41 |
27 |
372 |
1037 |
761 |
203 |
1 |
| CDI |
0 |
22 |
22 |
269 |
1063 |
2556 |
1293 |
39 |
| VCDI |
10 |
0 |
2 |
59 |
405 |
4070 |
21383 |
64780 |
|
...date precedes bulletin
|
Date: 2025-01-12:
| 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 |
74722 |
14048 |
392 |
347 |
7 |
0 |
0 |
0 |
| OW |
126 |
1442 |
343 |
897 |
284 |
42 |
0 |
0 |
| VODI |
0 |
306 |
134 |
968 |
1065 |
299 |
60 |
0 |
| ODI |
0 |
93 |
37 |
373 |
1082 |
706 |
310 |
0 |
| CDI |
0 |
47 |
35 |
282 |
1207 |
2053 |
895 |
80 |
| VCDI |
0 |
37 |
31 |
220 |
730 |
4613 |
24750 |
61680 |
|
...date precedes bulletin
|
Date: 2025-01-14:
| 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 |
74111 |
14648 |
418 |
350 |
17 |
8 |
0 |
0 |
| OW |
38 |
1408 |
387 |
882 |
186 |
20 |
0 |
0 |
| VODI |
2 |
225 |
138 |
1017 |
813 |
96 |
0 |
0 |
| ODI |
0 |
47 |
44 |
317 |
897 |
634 |
5 |
0 |
| CDI |
0 |
15 |
45 |
244 |
1045 |
2831 |
1024 |
49 |
| VCDI |
0 |
9 |
2 |
144 |
611 |
4849 |
28250 |
58917 |
|
...date precedes bulletin
|
Date: 2025-01-16:
| 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 |
72528 |
15735 |
411 |
390 |
5 |
9 |
0 |
0 |
| OW |
145 |
1259 |
339 |
861 |
175 |
38 |
0 |
0 |
| VODI |
24 |
305 |
141 |
892 |
698 |
201 |
2 |
0 |
| ODI |
2 |
88 |
63 |
340 |
738 |
496 |
71 |
0 |
| CDI |
3 |
23 |
57 |
280 |
1024 |
1832 |
1421 |
35 |
| VCDI |
7 |
1 |
18 |
107 |
609 |
3612 |
24615 |
65143 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72605 |
16171 |
526 |
598 |
11 |
12 |
0 |
0 |
| OW |
80 |
925 |
285 |
973 |
354 |
53 |
0 |
0 |
| VODI |
13 |
249 |
116 |
721 |
712 |
313 |
29 |
0 |
| ODI |
1 |
49 |
52 |
301 |
769 |
611 |
209 |
1 |
| CDI |
4 |
17 |
36 |
197 |
920 |
1966 |
1705 |
63 |
| VCDI |
6 |
0 |
14 |
80 |
483 |
3233 |
24166 |
65114 |
|
Date: 2025-01-18:
| 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 |
71180 |
16543 |
421 |
438 |
25 |
0 |
0 |
0 |
| OW |
207 |
1065 |
264 |
905 |
199 |
6 |
0 |
0 |
| VODI |
21 |
415 |
149 |
863 |
747 |
135 |
0 |
0 |
| ODI |
1 |
102 |
47 |
435 |
810 |
447 |
6 |
0 |
| CDI |
4 |
24 |
17 |
397 |
1122 |
1744 |
851 |
30 |
| VCDI |
7 |
0 |
6 |
77 |
786 |
4795 |
25224 |
64228 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71287 |
17053 |
540 |
723 |
44 |
0 |
0 |
0 |
| OW |
110 |
720 |
211 |
975 |
396 |
34 |
0 |
0 |
| VODI |
12 |
290 |
98 |
743 |
808 |
267 |
13 |
0 |
| ODI |
1 |
71 |
36 |
358 |
789 |
566 |
99 |
0 |
| CDI |
3 |
14 |
12 |
261 |
948 |
1791 |
1138 |
44 |
| VCDI |
7 |
1 |
7 |
55 |
704 |
4469 |
24831 |
64214 |
|
Date: 2025-01-20:
| 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 |
72682 |
15384 |
333 |
375 |
15 |
0 |
0 |
0 |
| OW |
132 |
915 |
378 |
721 |
134 |
1 |
0 |
0 |
| VODI |
10 |
181 |
135 |
1164 |
666 |
31 |
0 |
0 |
| ODI |
0 |
23 |
24 |
370 |
1258 |
270 |
7 |
0 |
| CDI |
0 |
3 |
5 |
166 |
1028 |
2477 |
454 |
6 |
| VCDI |
10 |
0 |
0 |
15 |
588 |
4988 |
26841 |
62953 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72636 |
15242 |
458 |
756 |
41 |
0 |
0 |
0 |
| OW |
176 |
685 |
148 |
705 |
429 |
30 |
0 |
0 |
| VODI |
12 |
431 |
109 |
555 |
723 |
286 |
9 |
0 |
| ODI |
0 |
113 |
114 |
320 |
783 |
543 |
147 |
1 |
| CDI |
3 |
32 |
37 |
370 |
892 |
1941 |
1049 |
31 |
| VCDI |
7 |
3 |
9 |
105 |
821 |
4967 |
26097 |
62927 |
|
Date: 2025-01-22:
| 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 |
71497 |
15917 |
440 |
406 |
20 |
0 |
0 |
0 |
| OW |
112 |
773 |
205 |
826 |
127 |
0 |
0 |
0 |
| VODI |
14 |
291 |
102 |
664 |
625 |
47 |
0 |
0 |
| ODI |
0 |
104 |
45 |
295 |
958 |
395 |
7 |
1 |
| CDI |
0 |
18 |
28 |
195 |
1033 |
2463 |
796 |
37 |
| VCDI |
0 |
4 |
2 |
54 |
613 |
5114 |
27501 |
63014 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71455 |
15369 |
450 |
586 |
72 |
3 |
0 |
0 |
| OW |
131 |
854 |
143 |
667 |
280 |
71 |
2 |
0 |
| VODI |
37 |
536 |
77 |
449 |
501 |
239 |
56 |
0 |
| ODI |
0 |
248 |
81 |
279 |
632 |
458 |
183 |
6 |
| CDI |
0 |
96 |
61 |
336 |
1068 |
1941 |
1117 |
103 |
| VCDI |
0 |
4 |
10 |
123 |
823 |
5307 |
26946 |
62943 |
|
Date: 2025-01-24:
| 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 |
70709 |
16230 |
371 |
317 |
49 |
0 |
0 |
0 |
| OW |
54 |
1026 |
276 |
838 |
135 |
9 |
0 |
0 |
| VODI |
13 |
426 |
160 |
788 |
580 |
51 |
0 |
0 |
| ODI |
2 |
128 |
73 |
372 |
814 |
404 |
16 |
0 |
| CDI |
0 |
35 |
21 |
256 |
788 |
2098 |
1348 |
59 |
| VCDI |
0 |
11 |
9 |
72 |
624 |
4677 |
26224 |
64680 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70663 |
15375 |
331 |
518 |
168 |
10 |
0 |
0 |
| OW |
60 |
1134 |
235 |
474 |
217 |
36 |
1 |
0 |
| VODI |
51 |
831 |
111 |
723 |
385 |
144 |
40 |
0 |
| ODI |
4 |
344 |
100 |
357 |
551 |
372 |
105 |
0 |
| CDI |
0 |
167 |
121 |
400 |
810 |
1460 |
1310 |
38 |
| VCDI |
0 |
5 |
12 |
171 |
859 |
5217 |
26132 |
64701 |
|
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