Validation of sea ice concentration - Full domain
Bulletin date: 2024-12-19
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-13:
| 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 |
74458 |
12142 |
178 |
49 |
4 |
0 |
0 |
0 |
| OW |
979 |
1847 |
290 |
386 |
164 |
6 |
1 |
0 |
| VODI |
2281 |
646 |
177 |
456 |
546 |
341 |
23 |
0 |
| ODI |
1304 |
143 |
111 |
303 |
478 |
573 |
77 |
0 |
| CDI |
0 |
37 |
54 |
221 |
845 |
1621 |
653 |
2 |
| VCDI |
0 |
0 |
2 |
95 |
656 |
5092 |
31612 |
41957 |
|
...date precedes bulletin
|
Date: 2024-12-15:
| 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 |
72745 |
12471 |
86 |
69 |
9 |
0 |
0 |
0 |
| OW |
933 |
1884 |
358 |
426 |
222 |
14 |
1 |
0 |
| VODI |
2234 |
725 |
235 |
542 |
564 |
341 |
42 |
0 |
| ODI |
1361 |
259 |
136 |
288 |
492 |
602 |
166 |
0 |
| CDI |
0 |
60 |
65 |
292 |
650 |
2076 |
1104 |
2 |
| VCDI |
0 |
0 |
0 |
24 |
458 |
5176 |
31618 |
42080 |
|
...date precedes bulletin
|
Date: 2024-12-17:
| 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 |
71766 |
13297 |
89 |
45 |
27 |
10 |
0 |
0 |
| OW |
865 |
1745 |
320 |
423 |
131 |
21 |
0 |
0 |
| VODI |
2179 |
468 |
262 |
651 |
576 |
134 |
12 |
0 |
| ODI |
1424 |
96 |
61 |
286 |
624 |
579 |
17 |
0 |
| CDI |
0 |
41 |
44 |
121 |
693 |
2310 |
974 |
0 |
| VCDI |
0 |
1 |
13 |
78 |
404 |
4459 |
36301 |
39263 |
|
...date precedes bulletin
|
Date: 2024-12-19:
| 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 |
69740 |
13190 |
138 |
67 |
8 |
14 |
0 |
0 |
| OW |
939 |
1505 |
356 |
649 |
190 |
45 |
1 |
0 |
| VODI |
2119 |
419 |
241 |
646 |
678 |
360 |
5 |
0 |
| ODI |
1494 |
75 |
84 |
332 |
553 |
664 |
46 |
0 |
| CDI |
0 |
44 |
33 |
185 |
657 |
2907 |
2007 |
0 |
| VCDI |
0 |
11 |
11 |
89 |
397 |
3811 |
28953 |
47147 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69756 |
13501 |
225 |
184 |
18 |
12 |
0 |
0 |
| OW |
925 |
1284 |
332 |
699 |
313 |
75 |
1 |
0 |
| VODI |
2148 |
349 |
208 |
573 |
699 |
468 |
10 |
0 |
| ODI |
1463 |
71 |
62 |
282 |
568 |
880 |
106 |
0 |
| CDI |
0 |
39 |
31 |
165 |
539 |
2685 |
2331 |
1 |
| VCDI |
0 |
0 |
5 |
65 |
346 |
3681 |
28564 |
47146 |
|
Date: 2024-12-21:
| 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 |
68523 |
12431 |
181 |
88 |
26 |
0 |
0 |
0 |
| OW |
901 |
1428 |
415 |
674 |
234 |
41 |
0 |
0 |
| VODI |
2131 |
590 |
212 |
690 |
855 |
362 |
23 |
0 |
| ODI |
1559 |
141 |
101 |
282 |
671 |
914 |
64 |
0 |
| CDI |
0 |
47 |
49 |
205 |
648 |
2644 |
2024 |
1 |
| VCDI |
0 |
1 |
10 |
37 |
192 |
3674 |
26720 |
51021 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68540 |
12868 |
288 |
246 |
48 |
2 |
0 |
0 |
| OW |
887 |
1061 |
345 |
687 |
343 |
82 |
1 |
0 |
| VODI |
2159 |
554 |
198 |
596 |
929 |
583 |
30 |
0 |
| ODI |
1528 |
126 |
95 |
261 |
577 |
1102 |
163 |
0 |
| CDI |
0 |
29 |
37 |
164 |
573 |
2519 |
2531 |
0 |
| VCDI |
0 |
0 |
5 |
22 |
156 |
3347 |
26106 |
51022 |
|
Date: 2024-12-23:
| 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 |
68279 |
11832 |
164 |
78 |
2 |
0 |
0 |
0 |
| OW |
825 |
1869 |
467 |
476 |
81 |
4 |
0 |
0 |
| VODI |
2022 |
356 |
285 |
1000 |
713 |
104 |
1 |
0 |
| ODI |
1618 |
70 |
47 |
274 |
1491 |
634 |
22 |
0 |
| CDI |
0 |
55 |
41 |
163 |
492 |
2519 |
737 |
0 |
| VCDI |
0 |
23 |
10 |
68 |
173 |
3012 |
26627 |
54176 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68277 |
11752 |
279 |
224 |
44 |
0 |
0 |
0 |
| OW |
831 |
1471 |
369 |
656 |
270 |
75 |
0 |
0 |
| VODI |
2045 |
594 |
207 |
614 |
947 |
405 |
53 |
0 |
| ODI |
1591 |
216 |
82 |
258 |
855 |
931 |
169 |
0 |
| CDI |
0 |
137 |
58 |
187 |
535 |
1998 |
2533 |
11 |
| VCDI |
0 |
35 |
19 |
120 |
301 |
2864 |
24632 |
54165 |
|
Date: 2024-12-25:
| 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 |
69310 |
10576 |
84 |
41 |
14 |
0 |
0 |
0 |
| OW |
902 |
2122 |
233 |
254 |
116 |
20 |
0 |
0 |
| VODI |
2072 |
804 |
259 |
638 |
586 |
138 |
21 |
0 |
| ODI |
1647 |
196 |
92 |
330 |
898 |
638 |
101 |
0 |
| CDI |
0 |
172 |
73 |
252 |
644 |
1791 |
1039 |
6 |
| VCDI |
0 |
73 |
42 |
164 |
625 |
3929 |
30012 |
49896 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69306 |
10441 |
151 |
162 |
63 |
4 |
0 |
0 |
| OW |
891 |
1961 |
257 |
401 |
291 |
54 |
9 |
0 |
| VODI |
2070 |
889 |
166 |
475 |
788 |
386 |
99 |
0 |
| ODI |
1664 |
343 |
86 |
236 |
667 |
860 |
289 |
0 |
| CDI |
0 |
206 |
70 |
232 |
579 |
1633 |
1878 |
13 |
| VCDI |
0 |
103 |
53 |
173 |
495 |
3579 |
28898 |
49889 |
|
Date: 2024-12-27:
| 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 |
68486 |
11123 |
86 |
77 |
29 |
0 |
0 |
0 |
| OW |
952 |
2105 |
212 |
287 |
84 |
20 |
0 |
0 |
| VODI |
1983 |
1015 |
261 |
616 |
541 |
151 |
5 |
0 |
| ODI |
1666 |
362 |
120 |
532 |
798 |
509 |
42 |
0 |
| CDI |
0 |
274 |
137 |
434 |
938 |
1584 |
945 |
4 |
| VCDI |
0 |
207 |
61 |
193 |
877 |
3605 |
30054 |
49435 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68517 |
11410 |
198 |
235 |
72 |
34 |
0 |
0 |
| OW |
926 |
1839 |
206 |
482 |
311 |
93 |
4 |
0 |
| VODI |
2018 |
995 |
208 |
603 |
687 |
288 |
61 |
0 |
| ODI |
1626 |
372 |
92 |
390 |
682 |
667 |
209 |
0 |
| CDI |
0 |
317 |
123 |
282 |
926 |
1376 |
1382 |
39 |
| VCDI |
0 |
153 |
50 |
147 |
589 |
3411 |
29390 |
49400 |
|
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