Validation of sea ice concentration - Full domain
Bulletin date: 2023-10-12
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-06:
| 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 |
120343 |
19705 |
616 |
1059 |
470 |
233 |
17 |
0 |
| OW |
0 |
1132 |
245 |
860 |
736 |
239 |
13 |
0 |
| VODI |
0 |
420 |
151 |
389 |
727 |
577 |
36 |
0 |
| ODI |
0 |
109 |
62 |
297 |
553 |
697 |
78 |
0 |
| CDI |
0 |
87 |
49 |
170 |
627 |
1804 |
845 |
0 |
| VCDI |
0 |
15 |
18 |
141 |
290 |
6732 |
24629 |
1877 |
|
...date precedes bulletin
|
Date: 2023-10-08:
| 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 |
119923 |
18243 |
623 |
995 |
671 |
158 |
4 |
0 |
| OW |
39 |
1605 |
289 |
809 |
814 |
245 |
3 |
0 |
| VODI |
0 |
324 |
196 |
485 |
932 |
769 |
40 |
0 |
| ODI |
0 |
95 |
42 |
314 |
376 |
841 |
236 |
0 |
| CDI |
0 |
88 |
33 |
163 |
395 |
1306 |
930 |
0 |
| VCDI |
0 |
20 |
24 |
91 |
252 |
5160 |
23933 |
5582 |
|
...date precedes bulletin
|
Date: 2023-10-10:
| 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 |
116839 |
20551 |
877 |
1430 |
437 |
64 |
0 |
0 |
| OW |
18 |
409 |
242 |
983 |
454 |
81 |
2 |
0 |
| VODI |
0 |
96 |
84 |
727 |
869 |
239 |
6 |
0 |
| ODI |
0 |
27 |
23 |
171 |
1128 |
554 |
31 |
0 |
| CDI |
0 |
9 |
18 |
63 |
781 |
2067 |
497 |
0 |
| VCDI |
0 |
0 |
0 |
16 |
89 |
3683 |
25656 |
7827 |
|
...date precedes bulletin
|
Date: 2023-10-12:
| 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 |
118382 |
17692 |
638 |
1045 |
329 |
96 |
0 |
0 |
| OW |
49 |
1149 |
311 |
888 |
609 |
72 |
5 |
0 |
| VODI |
11 |
263 |
137 |
640 |
972 |
201 |
10 |
0 |
| ODI |
0 |
62 |
33 |
221 |
832 |
570 |
23 |
0 |
| CDI |
0 |
33 |
27 |
68 |
460 |
1700 |
392 |
0 |
| VCDI |
0 |
0 |
6 |
40 |
247 |
4557 |
20612 |
13666 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
118364 |
18088 |
728 |
1277 |
410 |
123 |
2 |
0 |
| OW |
52 |
822 |
204 |
696 |
482 |
57 |
7 |
0 |
| VODI |
26 |
196 |
157 |
582 |
980 |
197 |
6 |
0 |
| ODI |
0 |
58 |
27 |
226 |
820 |
620 |
21 |
0 |
| CDI |
0 |
35 |
25 |
69 |
439 |
1544 |
367 |
0 |
| VCDI |
0 |
0 |
11 |
52 |
318 |
4655 |
20639 |
13666 |
|
Date: 2023-10-14:
| 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 |
115994 |
17909 |
437 |
661 |
406 |
214 |
4 |
0 |
| OW |
216 |
1586 |
439 |
1006 |
855 |
206 |
1 |
0 |
| VODI |
22 |
371 |
211 |
631 |
934 |
412 |
34 |
0 |
| ODI |
0 |
114 |
54 |
242 |
648 |
581 |
57 |
0 |
| CDI |
0 |
70 |
37 |
108 |
528 |
1216 |
206 |
0 |
| VCDI |
0 |
24 |
29 |
124 |
436 |
5172 |
19486 |
15367 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
116063 |
18003 |
529 |
825 |
539 |
291 |
4 |
0 |
| OW |
135 |
1522 |
321 |
729 |
681 |
153 |
3 |
0 |
| VODI |
34 |
342 |
233 |
749 |
951 |
359 |
25 |
0 |
| ODI |
0 |
108 |
59 |
221 |
651 |
567 |
52 |
0 |
| CDI |
0 |
64 |
31 |
111 |
514 |
1136 |
220 |
0 |
| VCDI |
0 |
35 |
34 |
137 |
471 |
5295 |
19484 |
15367 |
|
Date: 2023-10-16:
| 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 |
112765 |
19621 |
745 |
905 |
279 |
75 |
0 |
0 |
| OW |
64 |
1380 |
383 |
805 |
322 |
100 |
4 |
0 |
| VODI |
12 |
145 |
153 |
905 |
931 |
153 |
6 |
0 |
| ODI |
0 |
49 |
29 |
247 |
1753 |
670 |
52 |
0 |
| CDI |
0 |
19 |
25 |
119 |
858 |
2685 |
269 |
0 |
| VCDI |
0 |
0 |
2 |
54 |
349 |
4297 |
19859 |
15959 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
112782 |
18650 |
679 |
1079 |
600 |
255 |
15 |
0 |
| OW |
28 |
1740 |
307 |
643 |
563 |
273 |
20 |
0 |
| VODI |
22 |
540 |
202 |
645 |
1382 |
786 |
55 |
0 |
| ODI |
9 |
171 |
74 |
275 |
648 |
631 |
88 |
0 |
| CDI |
0 |
69 |
39 |
194 |
588 |
1029 |
297 |
0 |
| VCDI |
0 |
44 |
36 |
199 |
711 |
5006 |
19715 |
15959 |
|
Date: 2023-10-18:
| 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 |
109166 |
18250 |
761 |
1451 |
646 |
128 |
12 |
0 |
| OW |
0 |
2083 |
562 |
1393 |
835 |
184 |
38 |
0 |
| VODI |
0 |
411 |
185 |
694 |
1242 |
454 |
29 |
0 |
| ODI |
0 |
35 |
26 |
121 |
931 |
1035 |
80 |
0 |
| CDI |
0 |
11 |
31 |
78 |
479 |
2260 |
673 |
1 |
| VCDI |
0 |
0 |
0 |
12 |
227 |
4700 |
19727 |
18097 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
109164 |
18266 |
878 |
1905 |
1067 |
329 |
35 |
0 |
| OW |
2 |
1511 |
310 |
867 |
864 |
411 |
54 |
0 |
| VODI |
0 |
820 |
258 |
512 |
894 |
1211 |
146 |
0 |
| ODI |
0 |
118 |
73 |
254 |
532 |
1119 |
203 |
0 |
| CDI |
0 |
47 |
22 |
129 |
477 |
922 |
690 |
4 |
| VCDI |
0 |
28 |
24 |
82 |
526 |
4769 |
19431 |
18094 |
|
Date: 2023-10-20:
| 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 |
105808 |
18673 |
743 |
903 |
767 |
108 |
0 |
0 |
| OW |
11 |
1594 |
497 |
1211 |
1352 |
497 |
1 |
0 |
| VODI |
0 |
864 |
289 |
917 |
1861 |
967 |
10 |
0 |
| ODI |
0 |
49 |
34 |
260 |
786 |
1099 |
71 |
0 |
| CDI |
0 |
21 |
22 |
99 |
531 |
1608 |
195 |
0 |
| VCDI |
0 |
9 |
21 |
84 |
510 |
8602 |
25535 |
10439 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
105817 |
18581 |
863 |
1324 |
1349 |
520 |
0 |
0 |
| OW |
2 |
1451 |
333 |
807 |
1726 |
900 |
4 |
0 |
| VODI |
0 |
979 |
269 |
792 |
889 |
1512 |
56 |
0 |
| ODI |
0 |
167 |
93 |
314 |
652 |
1078 |
229 |
0 |
| CDI |
0 |
27 |
31 |
183 |
581 |
1136 |
446 |
0 |
| VCDI |
0 |
5 |
17 |
54 |
610 |
7735 |
25077 |
10439 |
|
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