Validation of sea ice concentration - Full domain
Bulletin date: 2023-10-26
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2023-10-22:
| 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 |
108390 |
14657 |
433 |
639 |
442 |
272 |
45 |
0 |
| OW |
74 |
1711 |
436 |
1153 |
1145 |
212 |
44 |
0 |
| VODI |
0 |
916 |
299 |
1184 |
2130 |
786 |
62 |
0 |
| ODI |
0 |
150 |
117 |
457 |
1210 |
921 |
84 |
0 |
| CDI |
0 |
25 |
40 |
177 |
742 |
1383 |
151 |
0 |
| VCDI |
0 |
3 |
10 |
150 |
880 |
8769 |
30609 |
6140 |
|
...date precedes bulletin
|
Date: 2023-10-24:
| 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 |
108080 |
15471 |
591 |
864 |
284 |
72 |
0 |
0 |
| OW |
7 |
774 |
294 |
818 |
503 |
68 |
7 |
0 |
| VODI |
0 |
182 |
227 |
882 |
1588 |
315 |
5 |
0 |
| ODI |
0 |
23 |
38 |
307 |
2204 |
1599 |
48 |
0 |
| CDI |
0 |
2 |
12 |
116 |
1243 |
3828 |
216 |
0 |
| VCDI |
0 |
1 |
1 |
29 |
361 |
9403 |
25416 |
11169 |
|
...date precedes bulletin
|
Date: 2023-10-26:
| 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 |
106354 |
14514 |
709 |
1018 |
240 |
86 |
38 |
0 |
| OW |
7 |
755 |
344 |
1139 |
714 |
152 |
20 |
0 |
| VODI |
0 |
123 |
141 |
737 |
1312 |
721 |
101 |
0 |
| ODI |
0 |
17 |
26 |
239 |
1346 |
1679 |
290 |
0 |
| CDI |
0 |
5 |
10 |
117 |
888 |
4367 |
659 |
0 |
| VCDI |
0 |
0 |
1 |
47 |
887 |
8639 |
23724 |
14882 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
106342 |
14348 |
701 |
1138 |
312 |
90 |
36 |
0 |
| OW |
19 |
893 |
340 |
994 |
658 |
217 |
15 |
0 |
| VODI |
0 |
150 |
152 |
760 |
1257 |
627 |
78 |
0 |
| ODI |
0 |
16 |
25 |
239 |
1294 |
1588 |
308 |
0 |
| CDI |
0 |
7 |
12 |
115 |
957 |
4107 |
473 |
0 |
| VCDI |
0 |
0 |
1 |
51 |
909 |
9015 |
23922 |
14882 |
|
Date: 2023-10-28:
| 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 |
104059 |
14360 |
675 |
1309 |
479 |
109 |
27 |
0 |
| OW |
10 |
524 |
300 |
1081 |
977 |
160 |
16 |
0 |
| VODI |
0 |
76 |
73 |
654 |
1338 |
1225 |
130 |
0 |
| ODI |
0 |
6 |
27 |
169 |
603 |
1743 |
357 |
0 |
| CDI |
0 |
3 |
9 |
68 |
423 |
3807 |
1241 |
0 |
| VCDI |
0 |
0 |
0 |
33 |
321 |
8800 |
22095 |
19761 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
104059 |
14150 |
703 |
1433 |
517 |
121 |
29 |
0 |
| OW |
10 |
704 |
250 |
953 |
864 |
212 |
18 |
0 |
| VODI |
0 |
106 |
98 |
667 |
1429 |
1139 |
107 |
0 |
| ODI |
0 |
6 |
24 |
162 |
619 |
1642 |
307 |
0 |
| CDI |
0 |
3 |
9 |
66 |
416 |
3381 |
1134 |
0 |
| VCDI |
0 |
0 |
0 |
33 |
296 |
9349 |
22271 |
19761 |
|
Date: 2023-10-30:
| 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 |
101888 |
15000 |
599 |
936 |
627 |
113 |
16 |
0 |
| OW |
16 |
297 |
258 |
637 |
380 |
57 |
15 |
0 |
| VODI |
0 |
59 |
139 |
847 |
1050 |
160 |
27 |
0 |
| ODI |
0 |
1 |
12 |
219 |
1735 |
918 |
19 |
0 |
| CDI |
0 |
2 |
2 |
30 |
687 |
6088 |
675 |
6 |
| VCDI |
0 |
0 |
3 |
17 |
128 |
5252 |
25629 |
22504 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
101888 |
14644 |
690 |
1399 |
1092 |
193 |
58 |
0 |
| OW |
16 |
557 |
177 |
658 |
965 |
210 |
22 |
0 |
| VODI |
0 |
147 |
109 |
367 |
1272 |
1628 |
101 |
0 |
| ODI |
0 |
8 |
17 |
178 |
517 |
1689 |
328 |
0 |
| CDI |
0 |
0 |
11 |
46 |
442 |
2284 |
1396 |
43 |
| VCDI |
0 |
3 |
9 |
38 |
319 |
6584 |
24476 |
22467 |
|
Date: 2023-11-01:
| 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 |
100562 |
15026 |
583 |
885 |
612 |
325 |
46 |
0 |
| OW |
29 |
391 |
214 |
549 |
485 |
178 |
25 |
0 |
| VODI |
0 |
140 |
100 |
454 |
1009 |
495 |
31 |
0 |
| ODI |
0 |
38 |
36 |
218 |
828 |
1005 |
120 |
0 |
| CDI |
0 |
9 |
16 |
62 |
809 |
2654 |
1013 |
3 |
| VCDI |
0 |
0 |
5 |
33 |
306 |
5364 |
26673 |
25717 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
100552 |
14329 |
547 |
994 |
1026 |
519 |
98 |
0 |
| OW |
35 |
1031 |
195 |
427 |
695 |
386 |
46 |
0 |
| VODI |
4 |
218 |
153 |
425 |
1073 |
1412 |
347 |
0 |
| ODI |
0 |
10 |
33 |
187 |
538 |
1521 |
612 |
0 |
| CDI |
0 |
12 |
14 |
113 |
365 |
1485 |
1335 |
124 |
| VCDI |
0 |
4 |
12 |
55 |
352 |
4698 |
25470 |
25596 |
|
Date: 2023-11-03:
| 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 |
100279 |
13986 |
582 |
727 |
739 |
300 |
30 |
0 |
| OW |
44 |
632 |
216 |
438 |
519 |
343 |
33 |
0 |
| VODI |
0 |
293 |
133 |
396 |
672 |
384 |
34 |
0 |
| ODI |
0 |
88 |
64 |
271 |
724 |
722 |
100 |
0 |
| CDI |
0 |
4 |
19 |
193 |
886 |
1373 |
527 |
4 |
| VCDI |
0 |
0 |
1 |
30 |
983 |
5856 |
25249 |
29174 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
100219 |
13573 |
551 |
743 |
1059 |
615 |
91 |
0 |
| OW |
82 |
876 |
256 |
412 |
431 |
356 |
57 |
0 |
| VODI |
22 |
444 |
149 |
487 |
934 |
1029 |
151 |
0 |
| ODI |
0 |
103 |
42 |
231 |
831 |
1208 |
581 |
7 |
| CDI |
0 |
7 |
16 |
126 |
563 |
1283 |
1226 |
23 |
| VCDI |
0 |
0 |
1 |
56 |
705 |
4487 |
23867 |
29148 |
|
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