Validation of sea ice concentration - Full domain
Bulletin date: 2023-12-07
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-01:
| 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 |
74911 |
13629 |
360 |
488 |
219 |
90 |
0 |
0 |
| OW |
1042 |
1877 |
431 |
761 |
357 |
158 |
3 |
0 |
| VODI |
2692 |
758 |
285 |
629 |
549 |
425 |
50 |
0 |
| ODI |
716 |
222 |
141 |
476 |
600 |
640 |
68 |
0 |
| CDI |
0 |
117 |
68 |
236 |
619 |
2050 |
724 |
1 |
| VCDI |
0 |
29 |
30 |
188 |
668 |
5499 |
32814 |
35190 |
|
...date precedes bulletin
|
Date: 2023-12-03:
| 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 |
72878 |
13853 |
435 |
579 |
193 |
68 |
0 |
0 |
| OW |
964 |
2086 |
467 |
866 |
295 |
86 |
0 |
0 |
| VODI |
2489 |
540 |
322 |
1044 |
880 |
510 |
13 |
0 |
| ODI |
1062 |
164 |
109 |
518 |
618 |
780 |
24 |
0 |
| CDI |
0 |
71 |
43 |
277 |
671 |
2065 |
710 |
0 |
| VCDI |
0 |
29 |
27 |
130 |
698 |
4639 |
29918 |
39689 |
|
...date precedes bulletin
|
Date: 2023-12-05:
| 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 |
72968 |
14055 |
416 |
358 |
152 |
36 |
0 |
0 |
| OW |
1020 |
1721 |
436 |
695 |
215 |
22 |
0 |
0 |
| VODI |
2431 |
403 |
358 |
1391 |
841 |
205 |
8 |
0 |
| ODI |
1135 |
45 |
38 |
419 |
1124 |
575 |
61 |
0 |
| CDI |
0 |
31 |
20 |
125 |
690 |
1993 |
786 |
0 |
| VCDI |
0 |
17 |
10 |
60 |
332 |
4082 |
31902 |
39634 |
|
...date precedes bulletin
|
Date: 2023-12-07:
| 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 |
71428 |
14883 |
452 |
462 |
87 |
46 |
0 |
0 |
| OW |
994 |
1695 |
388 |
674 |
284 |
38 |
0 |
0 |
| VODI |
2381 |
622 |
366 |
1218 |
809 |
247 |
12 |
0 |
| ODI |
1200 |
73 |
48 |
386 |
797 |
728 |
108 |
0 |
| CDI |
0 |
42 |
23 |
144 |
532 |
1823 |
784 |
0 |
| VCDI |
0 |
81 |
24 |
89 |
342 |
3915 |
29952 |
42633 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
71415 |
14980 |
475 |
507 |
109 |
52 |
0 |
0 |
| OW |
1003 |
1575 |
375 |
647 |
281 |
43 |
0 |
0 |
| VODI |
2389 |
650 |
346 |
1157 |
772 |
252 |
12 |
0 |
| ODI |
1196 |
76 |
63 |
432 |
809 |
709 |
113 |
0 |
| CDI |
0 |
43 |
17 |
150 |
544 |
1910 |
805 |
0 |
| VCDI |
0 |
72 |
25 |
80 |
336 |
3831 |
29926 |
42633 |
|
Date: 2023-12-09:
| 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 |
70406 |
14140 |
442 |
669 |
206 |
42 |
8 |
0 |
| OW |
1093 |
1762 |
355 |
801 |
521 |
144 |
0 |
0 |
| VODI |
2474 |
613 |
235 |
675 |
1116 |
486 |
22 |
0 |
| ODI |
1010 |
102 |
53 |
277 |
527 |
1095 |
151 |
0 |
| CDI |
0 |
98 |
28 |
151 |
410 |
2468 |
1254 |
0 |
| VCDI |
0 |
148 |
59 |
205 |
313 |
2760 |
26247 |
47244 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70415 |
14152 |
480 |
777 |
225 |
55 |
8 |
0 |
| OW |
1056 |
1685 |
305 |
706 |
555 |
119 |
0 |
0 |
| VODI |
2510 |
673 |
251 |
643 |
1064 |
513 |
19 |
0 |
| ODI |
1002 |
112 |
49 |
312 |
500 |
1043 |
168 |
0 |
| CDI |
0 |
89 |
31 |
147 |
439 |
2543 |
1352 |
0 |
| VCDI |
0 |
152 |
56 |
193 |
310 |
2722 |
26135 |
47244 |
|
Date: 2023-12-11:
| 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 |
69650 |
14044 |
490 |
552 |
174 |
21 |
4 |
0 |
| OW |
1125 |
1872 |
423 |
654 |
220 |
19 |
9 |
0 |
| VODI |
2360 |
503 |
356 |
1094 |
730 |
77 |
14 |
0 |
| ODI |
1101 |
93 |
55 |
411 |
1213 |
539 |
33 |
0 |
| CDI |
0 |
118 |
65 |
223 |
957 |
2890 |
720 |
0 |
| VCDI |
0 |
9 |
20 |
133 |
445 |
3230 |
27118 |
47046 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
69551 |
13461 |
572 |
767 |
375 |
28 |
16 |
0 |
| OW |
1059 |
1762 |
283 |
660 |
479 |
73 |
18 |
0 |
| VODI |
2286 |
777 |
290 |
663 |
933 |
388 |
38 |
0 |
| ODI |
1340 |
252 |
107 |
408 |
803 |
974 |
155 |
0 |
| CDI |
0 |
259 |
64 |
259 |
602 |
2095 |
1422 |
0 |
| VCDI |
0 |
128 |
93 |
310 |
547 |
3218 |
26249 |
47046 |
|
Date: 2023-12-13:
| 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 |
68147 |
13825 |
380 |
619 |
388 |
24 |
0 |
0 |
| OW |
910 |
1781 |
380 |
641 |
549 |
111 |
0 |
0 |
| VODI |
2179 |
611 |
285 |
909 |
925 |
259 |
4 |
0 |
| ODI |
1430 |
143 |
83 |
522 |
783 |
644 |
27 |
0 |
| CDI |
0 |
111 |
72 |
287 |
869 |
2976 |
905 |
0 |
| VCDI |
0 |
78 |
52 |
183 |
587 |
5324 |
26311 |
46496 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68201 |
13017 |
348 |
602 |
525 |
81 |
1 |
0 |
| OW |
954 |
1930 |
305 |
572 |
652 |
219 |
12 |
0 |
| VODI |
2347 |
923 |
297 |
733 |
753 |
599 |
38 |
0 |
| ODI |
1164 |
265 |
125 |
553 |
651 |
1085 |
127 |
0 |
| CDI |
0 |
245 |
90 |
418 |
788 |
2790 |
1753 |
0 |
| VCDI |
0 |
169 |
87 |
283 |
732 |
4564 |
25316 |
46496 |
|
Date: 2023-12-15:
| 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 |
68813 |
12182 |
339 |
479 |
412 |
10 |
4 |
0 |
| OW |
963 |
1689 |
347 |
507 |
610 |
110 |
6 |
0 |
| VODI |
2269 |
892 |
278 |
871 |
1050 |
441 |
11 |
0 |
| ODI |
1230 |
284 |
102 |
369 |
858 |
748 |
34 |
0 |
| CDI |
0 |
249 |
146 |
486 |
859 |
2385 |
835 |
0 |
| VCDI |
0 |
107 |
41 |
145 |
776 |
6872 |
23812 |
48189 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
68767 |
11075 |
307 |
506 |
590 |
62 |
5 |
0 |
| OW |
973 |
1756 |
261 |
370 |
482 |
214 |
33 |
0 |
| VODI |
2276 |
1403 |
308 |
760 |
970 |
647 |
59 |
0 |
| ODI |
1259 |
516 |
142 |
467 |
820 |
863 |
238 |
0 |
| CDI |
0 |
437 |
134 |
400 |
737 |
2565 |
1206 |
0 |
| VCDI |
0 |
216 |
101 |
354 |
966 |
6215 |
23161 |
48189 |
|
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