Validation of sea ice concentration - Full domain
Bulletin date: 2024-12-12
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-12-06:
| 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 |
77393 |
10595 |
190 |
241 |
185 |
46 |
0 |
0 |
| OW |
973 |
1710 |
219 |
372 |
250 |
89 |
0 |
0 |
| VODI |
2417 |
835 |
274 |
699 |
577 |
401 |
12 |
0 |
| ODI |
1155 |
71 |
79 |
330 |
703 |
934 |
105 |
0 |
| CDI |
0 |
20 |
25 |
172 |
723 |
2169 |
1030 |
0 |
| VCDI |
0 |
0 |
0 |
19 |
322 |
4738 |
30587 |
40150 |
|
...date precedes bulletin
|
Date: 2024-12-08:
| 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 |
77158 |
10073 |
89 |
101 |
83 |
2 |
0 |
0 |
| OW |
1025 |
2114 |
162 |
184 |
150 |
21 |
4 |
0 |
| VODI |
2344 |
1106 |
245 |
485 |
401 |
120 |
13 |
0 |
| ODI |
1248 |
302 |
178 |
492 |
825 |
644 |
100 |
0 |
| CDI |
0 |
20 |
46 |
267 |
1228 |
2057 |
743 |
14 |
| VCDI |
0 |
0 |
0 |
20 |
404 |
4728 |
25721 |
45893 |
|
...date precedes bulletin
|
Date: 2024-12-10:
| 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 |
76026 |
11262 |
96 |
106 |
46 |
10 |
0 |
0 |
| OW |
979 |
2391 |
249 |
244 |
129 |
37 |
4 |
0 |
| VODI |
2336 |
514 |
299 |
700 |
454 |
138 |
45 |
0 |
| ODI |
1248 |
59 |
63 |
361 |
860 |
613 |
103 |
0 |
| CDI |
0 |
9 |
17 |
113 |
697 |
1999 |
480 |
1 |
| VCDI |
0 |
0 |
8 |
61 |
377 |
4525 |
25704 |
47447 |
|
...date precedes bulletin
|
Date: 2024-12-12:
| 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 |
74983 |
11878 |
123 |
64 |
20 |
0 |
0 |
0 |
| OW |
956 |
1918 |
320 |
434 |
200 |
11 |
0 |
0 |
| VODI |
2301 |
581 |
200 |
543 |
561 |
310 |
2 |
0 |
| ODI |
1283 |
144 |
82 |
298 |
578 |
575 |
43 |
0 |
| CDI |
0 |
56 |
44 |
254 |
844 |
1716 |
553 |
2 |
| VCDI |
0 |
0 |
1 |
67 |
460 |
5834 |
29794 |
42777 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
75034 |
12323 |
171 |
141 |
22 |
0 |
0 |
0 |
| OW |
908 |
1518 |
301 |
411 |
238 |
17 |
0 |
0 |
| VODI |
2326 |
555 |
177 |
511 |
578 |
373 |
2 |
0 |
| ODI |
1255 |
142 |
81 |
290 |
554 |
670 |
62 |
0 |
| CDI |
0 |
36 |
40 |
257 |
823 |
1809 |
869 |
12 |
| VCDI |
0 |
3 |
0 |
50 |
448 |
5577 |
29459 |
42767 |
|
Date: 2024-12-14:
| 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 |
74159 |
11831 |
87 |
46 |
7 |
0 |
0 |
0 |
| OW |
1069 |
1742 |
305 |
451 |
170 |
13 |
0 |
0 |
| VODI |
2265 |
649 |
201 |
585 |
509 |
286 |
65 |
0 |
| ODI |
1329 |
191 |
103 |
298 |
514 |
586 |
93 |
0 |
| CDI |
0 |
38 |
47 |
265 |
760 |
1977 |
989 |
9 |
| VCDI |
0 |
0 |
0 |
62 |
549 |
5231 |
34506 |
38823 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
74251 |
12169 |
162 |
152 |
56 |
0 |
0 |
0 |
| OW |
984 |
1417 |
259 |
441 |
243 |
30 |
2 |
0 |
| VODI |
2282 |
612 |
175 |
517 |
466 |
448 |
43 |
0 |
| ODI |
1305 |
222 |
107 |
281 |
499 |
598 |
181 |
0 |
| CDI |
0 |
31 |
40 |
256 |
717 |
2009 |
1472 |
18 |
| VCDI |
0 |
0 |
0 |
60 |
528 |
5008 |
33955 |
38814 |
|
Date: 2024-12-16:
| 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 |
72519 |
12827 |
123 |
75 |
38 |
0 |
0 |
0 |
| OW |
866 |
1965 |
289 |
376 |
115 |
6 |
0 |
0 |
| VODI |
2207 |
432 |
336 |
812 |
515 |
100 |
7 |
0 |
| ODI |
1393 |
42 |
52 |
356 |
766 |
565 |
19 |
0 |
| CDI |
0 |
15 |
19 |
102 |
597 |
2527 |
789 |
1 |
| VCDI |
0 |
1 |
1 |
12 |
338 |
4687 |
34477 |
40443 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72522 |
12563 |
192 |
219 |
75 |
5 |
0 |
0 |
| OW |
867 |
1457 |
248 |
484 |
303 |
70 |
5 |
0 |
| VODI |
2222 |
833 |
201 |
466 |
570 |
408 |
77 |
0 |
| ODI |
1374 |
309 |
98 |
271 |
447 |
645 |
270 |
0 |
| CDI |
0 |
118 |
79 |
261 |
501 |
1773 |
1506 |
6 |
| VCDI |
0 |
2 |
2 |
32 |
473 |
4984 |
33434 |
40438 |
|
Date: 2024-12-18:
| 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 |
70690 |
13468 |
134 |
70 |
9 |
22 |
0 |
0 |
| OW |
890 |
1538 |
337 |
473 |
183 |
32 |
0 |
0 |
| VODI |
2149 |
420 |
206 |
610 |
678 |
231 |
7 |
0 |
| ODI |
1458 |
98 |
75 |
284 |
606 |
632 |
34 |
0 |
| CDI |
0 |
47 |
38 |
167 |
646 |
2737 |
1555 |
0 |
| VCDI |
0 |
11 |
17 |
108 |
425 |
4095 |
33144 |
42486 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70714 |
13227 |
210 |
170 |
64 |
28 |
0 |
0 |
| OW |
866 |
1248 |
249 |
514 |
347 |
80 |
1 |
0 |
| VODI |
2162 |
697 |
186 |
470 |
716 |
543 |
80 |
0 |
| ODI |
1445 |
213 |
69 |
228 |
432 |
782 |
367 |
0 |
| CDI |
0 |
193 |
79 |
214 |
441 |
1769 |
1685 |
3 |
| VCDI |
0 |
4 |
14 |
116 |
547 |
4547 |
32607 |
42483 |
|
Date: 2024-12-20:
| 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 |
68649 |
13138 |
183 |
128 |
19 |
4 |
0 |
0 |
| OW |
906 |
1436 |
371 |
672 |
217 |
42 |
0 |
0 |
| VODI |
2133 |
458 |
236 |
720 |
815 |
409 |
2 |
0 |
| ODI |
1528 |
104 |
103 |
284 |
624 |
756 |
52 |
0 |
| CDI |
0 |
35 |
48 |
191 |
707 |
2940 |
2185 |
0 |
| VCDI |
0 |
8 |
3 |
25 |
253 |
3768 |
27393 |
49265 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68675 |
13097 |
297 |
346 |
112 |
9 |
0 |
0 |
| OW |
923 |
1253 |
252 |
491 |
286 |
132 |
0 |
0 |
| VODI |
2109 |
622 |
233 |
645 |
735 |
617 |
61 |
0 |
| ODI |
1509 |
166 |
109 |
317 |
568 |
1050 |
277 |
0 |
| CDI |
0 |
33 |
47 |
167 |
572 |
1863 |
1986 |
0 |
| VCDI |
0 |
8 |
6 |
54 |
362 |
4248 |
27308 |
49265 |
|
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