Validation of sea ice concentration - Full domain
Bulletin date: 2023-10-19
Data source: OSI SAF N.H. multi-product 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 |
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 |
|
...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 |
122402 |
16944 |
667 |
825 |
53 |
0 |
0 |
0 |
| OW |
77 |
1329 |
366 |
1266 |
613 |
30 |
0 |
0 |
| VODI |
17 |
434 |
255 |
1051 |
1495 |
400 |
0 |
0 |
| ODI |
1 |
53 |
99 |
340 |
868 |
621 |
20 |
0 |
| CDI |
0 |
1 |
34 |
429 |
863 |
1815 |
203 |
0 |
| VCDI |
0 |
0 |
0 |
104 |
649 |
4624 |
17547 |
18248 |
|
...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 |
117189 |
19356 |
1151 |
1459 |
102 |
0 |
0 |
0 |
| OW |
32 |
1090 |
386 |
1457 |
259 |
8 |
0 |
0 |
| VODI |
0 |
148 |
108 |
1318 |
1000 |
47 |
0 |
0 |
| ODI |
2 |
5 |
22 |
341 |
1707 |
461 |
0 |
0 |
| CDI |
0 |
0 |
0 |
169 |
1103 |
3398 |
699 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
378 |
3731 |
16332 |
21283 |
|
...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 |
115606 |
16635 |
923 |
2106 |
630 |
4 |
0 |
0 |
| OW |
23 |
936 |
450 |
1746 |
912 |
86 |
0 |
0 |
| VODI |
11 |
184 |
109 |
1233 |
1396 |
171 |
0 |
0 |
| ODI |
2 |
58 |
39 |
401 |
1286 |
703 |
2 |
0 |
| CDI |
0 |
4 |
13 |
226 |
1052 |
3159 |
1104 |
1 |
| VCDI |
0 |
0 |
0 |
34 |
529 |
4983 |
17573 |
20413 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
115596 |
16948 |
985 |
2259 |
724 |
6 |
0 |
0 |
| OW |
27 |
639 |
377 |
1608 |
823 |
40 |
0 |
0 |
| VODI |
17 |
170 |
131 |
1257 |
1468 |
244 |
0 |
0 |
| ODI |
2 |
53 |
28 |
357 |
1214 |
759 |
8 |
0 |
| CDI |
0 |
7 |
13 |
225 |
1042 |
3176 |
1266 |
0 |
| VCDI |
0 |
0 |
0 |
40 |
534 |
4881 |
17405 |
20414 |
|
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 |
115533 |
14909 |
655 |
1117 |
349 |
79 |
0 |
0 |
| OW |
1 |
1052 |
443 |
1685 |
781 |
472 |
0 |
0 |
| VODI |
0 |
347 |
233 |
1383 |
1537 |
652 |
0 |
0 |
| ODI |
0 |
71 |
80 |
515 |
1267 |
764 |
0 |
0 |
| CDI |
0 |
5 |
34 |
463 |
1269 |
2996 |
163 |
0 |
| VCDI |
0 |
0 |
0 |
66 |
677 |
6421 |
19727 |
18997 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
115507 |
15210 |
732 |
1336 |
429 |
100 |
0 |
0 |
| OW |
25 |
850 |
404 |
1567 |
742 |
405 |
0 |
0 |
| VODI |
2 |
256 |
195 |
1238 |
1640 |
642 |
0 |
0 |
| ODI |
0 |
60 |
78 |
547 |
1195 |
952 |
0 |
0 |
| CDI |
0 |
8 |
36 |
471 |
1152 |
2759 |
264 |
0 |
| VCDI |
0 |
0 |
0 |
70 |
722 |
6526 |
19626 |
18997 |
|
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 |
115150 |
13983 |
465 |
676 |
135 |
0 |
0 |
0 |
| OW |
0 |
1371 |
672 |
1326 |
279 |
1 |
0 |
0 |
| VODI |
0 |
151 |
105 |
2116 |
1366 |
77 |
0 |
0 |
| ODI |
0 |
11 |
6 |
406 |
3562 |
1245 |
0 |
0 |
| CDI |
0 |
1 |
3 |
64 |
1525 |
3992 |
36 |
0 |
| VCDI |
0 |
0 |
0 |
14 |
307 |
7503 |
19875 |
18320 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
115093 |
13804 |
513 |
1189 |
517 |
30 |
0 |
0 |
| OW |
54 |
1030 |
381 |
1297 |
774 |
408 |
0 |
0 |
| VODI |
3 |
398 |
231 |
1182 |
2021 |
960 |
0 |
0 |
| ODI |
0 |
139 |
75 |
514 |
1556 |
905 |
0 |
0 |
| CDI |
0 |
144 |
50 |
343 |
1463 |
1895 |
147 |
0 |
| VCDI |
0 |
2 |
1 |
77 |
843 |
8620 |
19764 |
18320 |
|
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 |
114314 |
13084 |
521 |
693 |
333 |
29 |
0 |
0 |
| OW |
1 |
1060 |
480 |
1260 |
614 |
170 |
0 |
0 |
| VODI |
0 |
112 |
103 |
1321 |
1418 |
425 |
3 |
0 |
| ODI |
0 |
14 |
26 |
424 |
1601 |
1427 |
21 |
0 |
| CDI |
0 |
1 |
0 |
80 |
1945 |
4987 |
300 |
0 |
| VCDI |
0 |
0 |
0 |
9 |
313 |
8687 |
19266 |
19701 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
114232 |
12665 |
469 |
794 |
634 |
267 |
13 |
0 |
| OW |
80 |
1157 |
322 |
909 |
787 |
704 |
56 |
0 |
| VODI |
3 |
336 |
239 |
1054 |
1579 |
1405 |
70 |
0 |
| ODI |
0 |
79 |
47 |
503 |
1327 |
1714 |
148 |
0 |
| CDI |
0 |
34 |
52 |
480 |
1274 |
2904 |
317 |
0 |
| VCDI |
0 |
0 |
1 |
47 |
623 |
8731 |
18986 |
19701 |
|
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 |
112356 |
12074 |
485 |
1046 |
264 |
75 |
0 |
0 |
| OW |
2 |
906 |
482 |
1786 |
658 |
246 |
0 |
0 |
| VODI |
0 |
130 |
126 |
981 |
1226 |
846 |
24 |
0 |
| ODI |
0 |
13 |
20 |
424 |
1056 |
1451 |
108 |
0 |
| CDI |
0 |
1 |
5 |
136 |
1290 |
3935 |
794 |
1 |
| VCDI |
0 |
0 |
0 |
2 |
335 |
9175 |
18477 |
23807 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
112294 |
11629 |
485 |
1254 |
528 |
365 |
0 |
0 |
| OW |
46 |
1134 |
364 |
1097 |
467 |
729 |
3 |
0 |
| VODI |
18 |
288 |
181 |
1009 |
1241 |
1743 |
272 |
0 |
| ODI |
0 |
49 |
45 |
440 |
863 |
1909 |
486 |
0 |
| CDI |
0 |
24 |
41 |
384 |
1028 |
2896 |
1206 |
0 |
| VCDI |
0 |
0 |
2 |
191 |
702 |
8086 |
17436 |
23808 |
|
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