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 |
114431 |
15045 |
395 |
497 |
143 |
45 |
0 |
0 |
| OW |
1967 |
1444 |
392 |
1061 |
452 |
72 |
1 |
0 |
| VODI |
1909 |
524 |
166 |
578 |
868 |
275 |
7 |
0 |
| ODI |
0 |
168 |
105 |
334 |
625 |
527 |
38 |
0 |
| CDI |
0 |
82 |
80 |
368 |
903 |
1776 |
452 |
0 |
| VCDI |
0 |
3 |
3 |
78 |
412 |
7587 |
25120 |
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 |
111570 |
15957 |
433 |
492 |
175 |
9 |
0 |
0 |
| OW |
1925 |
2019 |
403 |
910 |
582 |
29 |
0 |
0 |
| VODI |
1967 |
415 |
226 |
748 |
1178 |
269 |
1 |
0 |
| ODI |
0 |
144 |
75 |
329 |
642 |
697 |
20 |
0 |
| CDI |
0 |
95 |
64 |
316 |
608 |
1510 |
335 |
1 |
| VCDI |
0 |
7 |
6 |
62 |
255 |
5965 |
24790 |
5581 |
|
...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 |
108357 |
18160 |
568 |
578 |
51 |
0 |
0 |
0 |
| OW |
1854 |
1095 |
458 |
1244 |
293 |
14 |
0 |
0 |
| VODI |
2057 |
131 |
146 |
1028 |
849 |
93 |
0 |
0 |
| ODI |
0 |
39 |
42 |
383 |
1036 |
262 |
5 |
0 |
| CDI |
0 |
18 |
30 |
140 |
1376 |
1801 |
318 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
153 |
4518 |
25869 |
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 |
109444 |
15745 |
478 |
500 |
45 |
0 |
0 |
0 |
| OW |
1835 |
1791 |
367 |
994 |
317 |
21 |
0 |
0 |
| VODI |
2114 |
317 |
195 |
909 |
947 |
109 |
4 |
0 |
| ODI |
0 |
112 |
54 |
306 |
887 |
375 |
14 |
0 |
| CDI |
0 |
45 |
58 |
172 |
1015 |
1830 |
359 |
0 |
| VCDI |
0 |
0 |
0 |
21 |
238 |
4861 |
20665 |
13666 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
109438 |
15994 |
523 |
607 |
79 |
0 |
0 |
0 |
| OW |
1838 |
1587 |
308 |
964 |
309 |
20 |
0 |
0 |
| VODI |
2117 |
286 |
203 |
832 |
963 |
133 |
3 |
0 |
| ODI |
0 |
100 |
65 |
278 |
952 |
405 |
18 |
0 |
| CDI |
0 |
43 |
53 |
206 |
902 |
2072 |
463 |
0 |
| VCDI |
0 |
0 |
0 |
15 |
244 |
4566 |
20558 |
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 |
107746 |
16067 |
395 |
421 |
86 |
5 |
0 |
0 |
| OW |
1860 |
1594 |
416 |
974 |
565 |
84 |
0 |
0 |
| VODI |
2156 |
426 |
228 |
762 |
1196 |
346 |
35 |
0 |
| ODI |
0 |
129 |
77 |
234 |
726 |
594 |
22 |
0 |
| CDI |
0 |
83 |
75 |
284 |
768 |
1708 |
243 |
0 |
| VCDI |
0 |
7 |
16 |
97 |
466 |
5064 |
19488 |
15367 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
107757 |
16402 |
481 |
637 |
159 |
39 |
0 |
0 |
| OW |
1852 |
1336 |
350 |
797 |
518 |
89 |
3 |
0 |
| VODI |
2153 |
381 |
200 |
684 |
1196 |
347 |
38 |
0 |
| ODI |
0 |
109 |
83 |
240 |
716 |
629 |
17 |
0 |
| CDI |
0 |
67 |
75 |
289 |
719 |
1846 |
337 |
0 |
| VCDI |
0 |
11 |
18 |
125 |
499 |
4851 |
19393 |
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 |
103877 |
18044 |
560 |
603 |
53 |
0 |
0 |
0 |
| OW |
1663 |
1577 |
432 |
664 |
196 |
6 |
0 |
0 |
| VODI |
2350 |
241 |
264 |
1091 |
890 |
75 |
3 |
0 |
| ODI |
0 |
51 |
38 |
392 |
1589 |
336 |
12 |
0 |
| CDI |
0 |
14 |
43 |
234 |
1412 |
3333 |
170 |
0 |
| VCDI |
0 |
0 |
0 |
51 |
352 |
4230 |
20005 |
15959 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
103879 |
17781 |
636 |
874 |
256 |
14 |
10 |
0 |
| OW |
1682 |
1289 |
297 |
623 |
559 |
151 |
13 |
0 |
| VODI |
2329 |
524 |
209 |
622 |
1434 |
559 |
34 |
0 |
| ODI |
0 |
208 |
79 |
281 |
765 |
1046 |
40 |
0 |
| CDI |
0 |
119 |
88 |
422 |
848 |
1957 |
921 |
0 |
| VCDI |
0 |
6 |
28 |
213 |
630 |
4253 |
19172 |
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 |
99961 |
18069 |
773 |
1531 |
517 |
3 |
0 |
0 |
| OW |
1601 |
1382 |
537 |
1072 |
505 |
99 |
0 |
0 |
| VODI |
2413 |
237 |
185 |
768 |
992 |
236 |
5 |
0 |
| ODI |
0 |
51 |
39 |
237 |
1147 |
850 |
47 |
0 |
| CDI |
0 |
4 |
31 |
141 |
917 |
3034 |
877 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
282 |
4539 |
19630 |
18098 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99947 |
17693 |
842 |
1690 |
743 |
60 |
0 |
0 |
| OW |
1627 |
1140 |
331 |
841 |
771 |
261 |
13 |
0 |
| VODI |
2401 |
649 |
193 |
588 |
878 |
663 |
48 |
0 |
| ODI |
0 |
208 |
110 |
257 |
563 |
1456 |
206 |
0 |
| CDI |
0 |
52 |
87 |
309 |
728 |
1843 |
1221 |
0 |
| VCDI |
0 |
1 |
2 |
64 |
677 |
4478 |
19071 |
18098 |
|
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 |
99376 |
15643 |
775 |
843 |
547 |
12 |
0 |
0 |
| OW |
1545 |
1246 |
498 |
1109 |
1171 |
330 |
0 |
0 |
| VODI |
2478 |
340 |
227 |
940 |
1556 |
524 |
0 |
0 |
| ODI |
0 |
94 |
45 |
347 |
999 |
857 |
7 |
0 |
| CDI |
0 |
63 |
47 |
179 |
973 |
3448 |
614 |
0 |
| VCDI |
0 |
6 |
14 |
56 |
561 |
7710 |
25191 |
10439 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99326 |
14661 |
824 |
1172 |
1055 |
111 |
0 |
0 |
| OW |
1594 |
1419 |
267 |
700 |
1241 |
421 |
0 |
0 |
| VODI |
2479 |
882 |
258 |
689 |
1127 |
881 |
12 |
0 |
| ODI |
0 |
258 |
131 |
427 |
696 |
1179 |
50 |
0 |
| CDI |
0 |
133 |
87 |
324 |
792 |
2780 |
741 |
0 |
| VCDI |
0 |
39 |
39 |
162 |
896 |
7509 |
25009 |
10439 |
|
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