Validation of sea ice concentration - Full domain
Bulletin date: 2023-10-19
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-13:
| 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 |
109434 |
15286 |
388 |
446 |
56 |
0 |
0 |
0 |
| OW |
1871 |
1715 |
392 |
971 |
415 |
29 |
0 |
0 |
| VODI |
2144 |
390 |
212 |
864 |
989 |
181 |
0 |
0 |
| ODI |
0 |
112 |
78 |
269 |
825 |
465 |
6 |
0 |
| CDI |
0 |
40 |
64 |
282 |
838 |
1739 |
332 |
0 |
| VCDI |
0 |
0 |
1 |
38 |
315 |
5145 |
19166 |
15312 |
|
...date precedes bulletin
|
Date: 2023-10-15:
| 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 |
105384 |
17524 |
452 |
450 |
88 |
0 |
0 |
0 |
| OW |
1767 |
1629 |
364 |
839 |
602 |
44 |
0 |
0 |
| VODI |
2181 |
495 |
176 |
820 |
1556 |
391 |
9 |
0 |
| ODI |
0 |
164 |
69 |
235 |
908 |
545 |
20 |
0 |
| CDI |
0 |
91 |
74 |
319 |
934 |
1684 |
186 |
0 |
| VCDI |
0 |
15 |
26 |
129 |
565 |
5175 |
19760 |
15140 |
|
...date precedes bulletin
|
Date: 2023-10-17:
| 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 |
102063 |
18035 |
763 |
1157 |
261 |
0 |
0 |
0 |
| OW |
1627 |
1413 |
444 |
857 |
324 |
17 |
0 |
0 |
| VODI |
2383 |
215 |
166 |
902 |
985 |
131 |
0 |
0 |
| ODI |
0 |
53 |
40 |
230 |
1308 |
813 |
11 |
0 |
| CDI |
0 |
14 |
39 |
186 |
863 |
3378 |
781 |
0 |
| VCDI |
0 |
0 |
0 |
42 |
353 |
3860 |
19097 |
17999 |
|
...date precedes bulletin
|
Date: 2023-10-19:
| 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 |
99219 |
16831 |
821 |
1550 |
606 |
36 |
0 |
0 |
| OW |
1578 |
1335 |
419 |
1119 |
968 |
143 |
0 |
0 |
| VODI |
2448 |
297 |
193 |
896 |
1237 |
331 |
1 |
0 |
| ODI |
0 |
99 |
32 |
276 |
1037 |
812 |
38 |
0 |
| CDI |
0 |
37 |
35 |
162 |
807 |
3381 |
938 |
0 |
| VCDI |
0 |
7 |
11 |
61 |
440 |
5935 |
20554 |
16120 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99213 |
17208 |
854 |
1643 |
691 |
51 |
0 |
0 |
| OW |
1587 |
978 |
387 |
1038 |
883 |
82 |
0 |
0 |
| VODI |
2445 |
293 |
195 |
925 |
1322 |
375 |
0 |
0 |
| ODI |
0 |
87 |
28 |
239 |
964 |
882 |
54 |
0 |
| CDI |
0 |
33 |
38 |
160 |
789 |
3461 |
1037 |
0 |
| VCDI |
0 |
7 |
9 |
59 |
446 |
5787 |
20440 |
16120 |
|
Date: 2023-10-21:
| 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 |
99454 |
14521 |
636 |
728 |
437 |
45 |
0 |
0 |
| OW |
1467 |
1450 |
467 |
1053 |
928 |
385 |
0 |
0 |
| VODI |
2629 |
550 |
266 |
1002 |
1456 |
692 |
1 |
0 |
| ODI |
0 |
125 |
112 |
479 |
1049 |
828 |
0 |
0 |
| CDI |
0 |
67 |
69 |
391 |
956 |
2870 |
288 |
0 |
| VCDI |
0 |
3 |
9 |
68 |
625 |
8494 |
27243 |
8967 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
99432 |
14913 |
677 |
845 |
554 |
59 |
0 |
0 |
| OW |
1492 |
1185 |
456 |
1009 |
831 |
351 |
0 |
0 |
| VODI |
2626 |
437 |
236 |
896 |
1545 |
682 |
1 |
0 |
| ODI |
0 |
115 |
114 |
501 |
980 |
996 |
9 |
0 |
| CDI |
0 |
63 |
68 |
408 |
924 |
2669 |
341 |
0 |
| VCDI |
0 |
3 |
8 |
62 |
617 |
8557 |
27181 |
8967 |
|
Date: 2023-10-23:
| 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 |
98847 |
13877 |
280 |
487 |
141 |
0 |
0 |
0 |
| OW |
1423 |
1878 |
496 |
803 |
336 |
14 |
0 |
0 |
| VODI |
2686 |
346 |
400 |
1597 |
1041 |
241 |
0 |
0 |
| ODI |
0 |
22 |
30 |
524 |
2608 |
1794 |
27 |
0 |
| CDI |
0 |
2 |
6 |
71 |
1209 |
3819 |
295 |
0 |
| VCDI |
0 |
0 |
1 |
17 |
293 |
9335 |
25973 |
9891 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
98797 |
13825 |
413 |
778 |
507 |
64 |
0 |
0 |
| OW |
1491 |
1355 |
345 |
890 |
640 |
517 |
6 |
0 |
| VODI |
2668 |
621 |
271 |
930 |
1492 |
1263 |
26 |
0 |
| ODI |
0 |
172 |
109 |
498 |
1090 |
1122 |
31 |
0 |
| CDI |
0 |
149 |
68 |
348 |
1113 |
1881 |
296 |
0 |
| VCDI |
0 |
3 |
7 |
55 |
786 |
10356 |
25936 |
9891 |
|
Date: 2023-10-25:
| 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 |
97521 |
13596 |
302 |
484 |
310 |
37 |
0 |
0 |
| OW |
1378 |
1393 |
467 |
767 |
647 |
195 |
1 |
0 |
| VODI |
2744 |
281 |
238 |
987 |
1244 |
500 |
16 |
0 |
| ODI |
0 |
66 |
72 |
385 |
1268 |
1554 |
61 |
0 |
| CDI |
0 |
13 |
11 |
121 |
1695 |
4838 |
393 |
0 |
| VCDI |
0 |
0 |
1 |
14 |
489 |
9840 |
24890 |
11991 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
97442 |
13197 |
350 |
511 |
599 |
248 |
11 |
0 |
| OW |
1485 |
1334 |
312 |
639 |
797 |
664 |
66 |
0 |
| VODI |
2716 |
549 |
246 |
754 |
1395 |
1527 |
60 |
0 |
| ODI |
0 |
151 |
98 |
378 |
1064 |
1832 |
151 |
0 |
| CDI |
0 |
112 |
78 |
421 |
975 |
2925 |
334 |
0 |
| VCDI |
0 |
6 |
7 |
55 |
823 |
9768 |
24739 |
11991 |
|
Date: 2023-10-27:
| 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 |
95577 |
12559 |
392 |
789 |
261 |
71 |
0 |
0 |
| OW |
1335 |
1275 |
504 |
1301 |
633 |
250 |
2 |
0 |
| VODI |
2800 |
281 |
196 |
746 |
1058 |
894 |
50 |
0 |
| ODI |
0 |
58 |
62 |
382 |
793 |
1534 |
149 |
0 |
| CDI |
0 |
14 |
19 |
188 |
983 |
3958 |
824 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
418 |
10029 |
23733 |
16683 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
95522 |
12099 |
444 |
977 |
495 |
369 |
0 |
0 |
| OW |
1400 |
1393 |
294 |
828 |
449 |
693 |
15 |
0 |
| VODI |
2790 |
476 |
269 |
723 |
1005 |
1787 |
325 |
0 |
| ODI |
0 |
131 |
90 |
319 |
685 |
1984 |
489 |
0 |
| CDI |
0 |
79 |
52 |
369 |
803 |
3007 |
1096 |
0 |
| VCDI |
0 |
9 |
24 |
199 |
709 |
8896 |
22833 |
16683 |
|
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