Validation of sea ice concentration - Full domain
Bulletin date: 2023-10-05
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-30:
| 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 |
137729 |
13488 |
295 |
229 |
25 |
0 |
0 |
0 |
| OW |
18 |
1547 |
546 |
1107 |
136 |
20 |
0 |
0 |
| VODI |
0 |
104 |
170 |
1812 |
931 |
55 |
0 |
0 |
| ODI |
0 |
11 |
24 |
351 |
2503 |
1032 |
8 |
0 |
| CDI |
0 |
0 |
7 |
117 |
795 |
3598 |
1788 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
157 |
1032 |
11281 |
13827 |
|
...date precedes bulletin
|
Date: 2023-10-02:
| 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 |
135183 |
14007 |
281 |
397 |
39 |
21 |
0 |
0 |
| OW |
22 |
2373 |
525 |
889 |
179 |
107 |
0 |
0 |
| VODI |
0 |
254 |
246 |
1532 |
1112 |
282 |
8 |
0 |
| ODI |
0 |
19 |
18 |
438 |
1523 |
1074 |
123 |
0 |
| CDI |
0 |
0 |
11 |
133 |
605 |
3895 |
1837 |
18 |
| VCDI |
0 |
0 |
0 |
14 |
69 |
885 |
14648 |
11976 |
|
...date precedes bulletin
|
Date: 2023-10-04:
| 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 |
133671 |
15370 |
306 |
379 |
54 |
8 |
0 |
0 |
| OW |
2 |
1353 |
657 |
925 |
66 |
13 |
0 |
0 |
| VODI |
0 |
77 |
164 |
1522 |
476 |
76 |
0 |
0 |
| ODI |
0 |
2 |
6 |
562 |
1088 |
597 |
0 |
0 |
| CDI |
0 |
0 |
0 |
114 |
1653 |
1979 |
175 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
172 |
7060 |
22966 |
3250 |
|
...date precedes bulletin
|
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 |
132535 |
15162 |
370 |
568 |
124 |
11 |
0 |
0 |
| OW |
2 |
1246 |
365 |
1224 |
333 |
32 |
2 |
0 |
| VODI |
0 |
228 |
228 |
755 |
940 |
102 |
6 |
0 |
| ODI |
0 |
28 |
57 |
499 |
678 |
594 |
7 |
0 |
| CDI |
0 |
10 |
17 |
353 |
1098 |
2061 |
492 |
0 |
| VCDI |
0 |
0 |
0 |
26 |
380 |
5368 |
18981 |
9861 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
132518 |
15194 |
418 |
699 |
148 |
9 |
0 |
0 |
| OW |
19 |
1194 |
317 |
1107 |
388 |
30 |
1 |
0 |
| VODI |
0 |
248 |
239 |
771 |
903 |
134 |
7 |
0 |
| ODI |
0 |
29 |
45 |
475 |
653 |
634 |
6 |
0 |
| CDI |
0 |
9 |
18 |
353 |
1090 |
2024 |
587 |
0 |
| VCDI |
0 |
0 |
0 |
20 |
371 |
5337 |
18887 |
9861 |
|
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 |
129054 |
16600 |
368 |
717 |
231 |
2 |
0 |
0 |
| OW |
2 |
1501 |
446 |
1278 |
451 |
59 |
1 |
0 |
| VODI |
0 |
346 |
194 |
816 |
1018 |
335 |
18 |
0 |
| ODI |
0 |
54 |
97 |
437 |
605 |
571 |
76 |
0 |
| CDI |
0 |
5 |
30 |
423 |
1000 |
1393 |
653 |
3 |
| VCDI |
0 |
0 |
0 |
26 |
279 |
4005 |
16748 |
14901 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
129034 |
16456 |
395 |
789 |
269 |
7 |
0 |
0 |
| OW |
22 |
1601 |
419 |
1241 |
489 |
65 |
0 |
0 |
| VODI |
0 |
401 |
204 |
779 |
953 |
357 |
21 |
0 |
| ODI |
0 |
40 |
96 |
468 |
592 |
580 |
81 |
0 |
| CDI |
0 |
8 |
21 |
391 |
947 |
1441 |
657 |
8 |
| VCDI |
0 |
0 |
0 |
29 |
334 |
3915 |
16737 |
14896 |
|
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 |
127781 |
16735 |
471 |
512 |
104 |
1 |
0 |
0 |
| OW |
51 |
1052 |
603 |
1222 |
125 |
4 |
0 |
0 |
| VODI |
1 |
6 |
61 |
1686 |
629 |
13 |
10 |
0 |
| ODI |
0 |
0 |
9 |
314 |
1474 |
100 |
58 |
2 |
| CDI |
0 |
0 |
0 |
121 |
1297 |
2433 |
391 |
81 |
| VCDI |
0 |
0 |
0 |
5 |
101 |
3066 |
15815 |
18409 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
127723 |
15788 |
443 |
706 |
174 |
4 |
0 |
0 |
| OW |
106 |
1623 |
432 |
1346 |
668 |
30 |
0 |
0 |
| VODI |
4 |
342 |
164 |
967 |
1181 |
539 |
21 |
0 |
| ODI |
0 |
39 |
68 |
410 |
560 |
770 |
139 |
0 |
| CDI |
0 |
1 |
37 |
389 |
721 |
975 |
947 |
31 |
| VCDI |
0 |
0 |
0 |
42 |
426 |
3299 |
15167 |
18461 |
|
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 |
125104 |
17630 |
619 |
819 |
20 |
1 |
0 |
0 |
| OW |
25 |
1065 |
374 |
1543 |
361 |
1 |
0 |
0 |
| VODI |
11 |
74 |
89 |
1155 |
1108 |
40 |
0 |
0 |
| ODI |
0 |
10 |
23 |
279 |
1302 |
231 |
0 |
0 |
| CDI |
0 |
1 |
1 |
174 |
1202 |
1877 |
224 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
145 |
3113 |
15582 |
20538 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
125055 |
16419 |
458 |
728 |
66 |
1 |
0 |
0 |
| OW |
73 |
1891 |
407 |
1410 |
469 |
37 |
0 |
0 |
| VODI |
12 |
366 |
135 |
1150 |
1581 |
397 |
14 |
0 |
| ODI |
0 |
78 |
51 |
288 |
926 |
1009 |
121 |
0 |
| CDI |
0 |
26 |
55 |
332 |
712 |
1177 |
799 |
0 |
| VCDI |
0 |
0 |
0 |
64 |
384 |
2642 |
14872 |
20538 |
|
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 |
125958 |
15374 |
547 |
711 |
75 |
1 |
0 |
0 |
| OW |
66 |
1608 |
403 |
1237 |
485 |
24 |
0 |
0 |
| VODI |
14 |
338 |
185 |
1004 |
1124 |
129 |
0 |
0 |
| ODI |
0 |
22 |
55 |
367 |
933 |
406 |
8 |
0 |
| CDI |
0 |
0 |
4 |
313 |
1085 |
1619 |
323 |
2 |
| VCDI |
0 |
0 |
0 |
14 |
371 |
4324 |
17318 |
18296 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
125900 |
13940 |
362 |
648 |
296 |
15 |
0 |
0 |
| OW |
128 |
2403 |
419 |
889 |
549 |
109 |
0 |
0 |
| VODI |
10 |
761 |
231 |
1146 |
1336 |
594 |
23 |
0 |
| ODI |
0 |
175 |
71 |
329 |
803 |
904 |
155 |
0 |
| CDI |
0 |
63 |
110 |
507 |
554 |
1307 |
686 |
1 |
| VCDI |
0 |
0 |
1 |
127 |
535 |
3574 |
16785 |
18297 |
|
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