Validation of sea ice concentration
Bulletin date: 2024-09-05
Model vs. observations, sea ice class contingency tables
Date: 2024-08-30:
| 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 |
114142 |
16819 |
3441 |
537 |
198 |
17 |
9 |
0 |
| OW |
8 |
495 |
749 |
1263 |
773 |
192 |
22 |
0 |
| VODI |
1 |
66 |
224 |
1178 |
1111 |
662 |
194 |
0 |
| ODI |
0 |
0 |
0 |
153 |
458 |
822 |
2212 |
10 |
| CDI |
0 |
0 |
0 |
23 |
26 |
440 |
5671 |
3281 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
36 |
2452 |
783 |
|
...date precedes bulletin
|
Date: 2024-09-03:
| 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 |
115425 |
16852 |
2265 |
979 |
117 |
13 |
4 |
0 |
| OW |
15 |
464 |
865 |
1608 |
648 |
40 |
10 |
0 |
| VODI |
1 |
2 |
158 |
770 |
1339 |
400 |
85 |
0 |
| ODI |
0 |
0 |
8 |
114 |
511 |
1146 |
2445 |
27 |
| CDI |
0 |
0 |
0 |
1 |
73 |
282 |
4783 |
3768 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
1838 |
1412 |
|
...date precedes bulletin
|
Date: 2024-09-05:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2024-09-09:
| 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 |
116225 |
14373 |
2977 |
1507 |
171 |
6 |
4 |
0 |
| OW |
9 |
77 |
407 |
1270 |
433 |
24 |
8 |
0 |
| VODI |
0 |
6 |
105 |
1074 |
1192 |
203 |
48 |
0 |
| ODI |
0 |
0 |
1 |
288 |
879 |
1147 |
448 |
0 |
| CDI |
0 |
0 |
0 |
28 |
108 |
1051 |
6053 |
3987 |
| VCDI |
0 |
0 |
0 |
13 |
7 |
63 |
2621 |
1655 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
116213 |
14194 |
2771 |
1348 |
126 |
9 |
4 |
0 |
| OW |
21 |
262 |
656 |
1765 |
729 |
33 |
6 |
0 |
| VODI |
0 |
0 |
63 |
796 |
1305 |
381 |
61 |
0 |
| ODI |
0 |
0 |
0 |
240 |
519 |
1119 |
369 |
0 |
| CDI |
0 |
0 |
0 |
20 |
103 |
900 |
5435 |
1777 |
| VCDI |
0 |
0 |
0 |
11 |
8 |
52 |
3307 |
3865 |
|
Date: 2024-09-11:
| 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 |
116508 |
13351 |
3587 |
1380 |
122 |
3 |
3 |
0 |
| OW |
4 |
96 |
310 |
1382 |
414 |
43 |
5 |
0 |
| VODI |
0 |
8 |
120 |
828 |
1088 |
432 |
60 |
0 |
| ODI |
0 |
0 |
7 |
207 |
324 |
1552 |
570 |
2 |
| CDI |
0 |
0 |
0 |
51 |
60 |
525 |
6132 |
3291 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
15 |
2571 |
3415 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
116498 |
13224 |
3250 |
1297 |
101 |
10 |
3 |
0 |
| OW |
14 |
231 |
661 |
1716 |
645 |
83 |
4 |
0 |
| VODI |
0 |
0 |
113 |
655 |
991 |
770 |
83 |
0 |
| ODI |
0 |
0 |
0 |
110 |
217 |
1092 |
568 |
0 |
| CDI |
0 |
0 |
0 |
63 |
50 |
597 |
5263 |
619 |
| VCDI |
0 |
0 |
0 |
8 |
5 |
18 |
3420 |
6089 |
|
Date: 2024-09-13:
| 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 |
118348 |
12717 |
2857 |
1012 |
149 |
4 |
2 |
0 |
| OW |
0 |
77 |
596 |
1005 |
623 |
27 |
10 |
0 |
| VODI |
0 |
0 |
104 |
564 |
972 |
465 |
252 |
0 |
| ODI |
0 |
0 |
0 |
169 |
346 |
569 |
1161 |
0 |
| CDI |
0 |
0 |
0 |
25 |
144 |
467 |
4773 |
41 |
| VCDI |
0 |
0 |
0 |
3 |
2 |
30 |
4997 |
5957 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
118342 |
12199 |
2325 |
915 |
163 |
13 |
8 |
0 |
| OW |
6 |
595 |
956 |
967 |
738 |
89 |
27 |
0 |
| VODI |
0 |
0 |
276 |
750 |
926 |
499 |
300 |
0 |
| ODI |
0 |
0 |
0 |
124 |
326 |
681 |
1030 |
0 |
| CDI |
0 |
0 |
0 |
18 |
65 |
264 |
4722 |
59 |
| VCDI |
0 |
0 |
0 |
4 |
18 |
16 |
5108 |
5939 |
|
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