Validation of sea ice concentration
Bulletin date: 2024-04-04
Model vs. observations, sea ice class contingency tables
Date: 2024-03-29:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2024-04-02:
| 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 |
52937 |
18420 |
2391 |
255 |
41 |
1 |
0 |
0 |
| OW |
0 |
274 |
1528 |
903 |
116 |
21 |
7 |
0 |
| VODI |
0 |
62 |
624 |
1563 |
790 |
403 |
63 |
0 |
| ODI |
0 |
6 |
216 |
512 |
880 |
1539 |
378 |
0 |
| CDI |
0 |
5 |
124 |
713 |
1113 |
3544 |
4005 |
30 |
| VCDI |
0 |
0 |
45 |
125 |
430 |
2469 |
32089 |
29846 |
|
...date precedes bulletin
|
Date: 2024-04-04:
| 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 |
52476 |
19011 |
1425 |
118 |
18 |
1 |
0 |
0 |
| OW |
0 |
466 |
1584 |
571 |
204 |
24 |
13 |
0 |
| VODI |
0 |
113 |
958 |
1023 |
841 |
477 |
109 |
0 |
| ODI |
0 |
15 |
285 |
479 |
916 |
1660 |
575 |
0 |
| CDI |
0 |
10 |
210 |
477 |
991 |
3299 |
6565 |
18 |
| VCDI |
0 |
0 |
22 |
39 |
200 |
1282 |
28517 |
33476 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
52476 |
19083 |
1489 |
115 |
21 |
3 |
0 |
0 |
| OW |
0 |
391 |
1534 |
562 |
195 |
23 |
14 |
0 |
| VODI |
0 |
114 |
941 |
1027 |
803 |
461 |
111 |
0 |
| ODI |
0 |
16 |
292 |
497 |
899 |
1540 |
556 |
0 |
| CDI |
0 |
11 |
208 |
469 |
1061 |
3438 |
6915 |
32 |
| VCDI |
0 |
0 |
20 |
37 |
191 |
1278 |
28183 |
33462 |
|
Date: 2024-04-08:
| 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 |
53074 |
19191 |
1451 |
90 |
26 |
2 |
2 |
0 |
| OW |
0 |
414 |
1852 |
517 |
111 |
36 |
21 |
0 |
| VODI |
0 |
7 |
827 |
989 |
733 |
438 |
170 |
0 |
| ODI |
0 |
0 |
226 |
312 |
479 |
1356 |
1172 |
7 |
| CDI |
0 |
0 |
181 |
232 |
437 |
1685 |
5412 |
29 |
| VCDI |
0 |
0 |
114 |
132 |
255 |
825 |
33586 |
32077 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
53074 |
18740 |
1076 |
52 |
19 |
1 |
1 |
0 |
| OW |
0 |
715 |
1488 |
378 |
130 |
62 |
18 |
0 |
| VODI |
0 |
146 |
972 |
893 |
589 |
388 |
212 |
0 |
| ODI |
0 |
11 |
505 |
403 |
486 |
1154 |
1039 |
7 |
| CDI |
0 |
0 |
354 |
324 |
501 |
1574 |
8321 |
61 |
| VCDI |
0 |
0 |
256 |
222 |
316 |
1163 |
30772 |
32045 |
|
Date: 2024-04-10:
| 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 |
53089 |
19477 |
1388 |
57 |
1 |
0 |
1 |
0 |
| OW |
0 |
257 |
1722 |
509 |
215 |
50 |
11 |
0 |
| VODI |
0 |
7 |
678 |
739 |
754 |
770 |
173 |
0 |
| ODI |
0 |
0 |
183 |
328 |
421 |
1140 |
1160 |
2 |
| CDI |
0 |
0 |
121 |
279 |
682 |
1627 |
5177 |
35 |
| VCDI |
0 |
0 |
1 |
49 |
196 |
727 |
32167 |
34275 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
53089 |
18711 |
903 |
62 |
5 |
1 |
2 |
0 |
| OW |
0 |
852 |
1465 |
265 |
114 |
56 |
17 |
0 |
| VODI |
0 |
162 |
953 |
733 |
682 |
611 |
222 |
0 |
| ODI |
0 |
16 |
460 |
401 |
436 |
1222 |
943 |
0 |
| CDI |
0 |
0 |
280 |
406 |
677 |
1526 |
8101 |
154 |
| VCDI |
0 |
0 |
32 |
94 |
355 |
898 |
29404 |
34158 |
|
Date: 2024-04-12:
| 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 |
53087 |
19758 |
673 |
61 |
3 |
0 |
1 |
0 |
| OW |
0 |
897 |
1184 |
609 |
90 |
38 |
29 |
0 |
| VODI |
0 |
63 |
747 |
1455 |
572 |
338 |
217 |
0 |
| ODI |
0 |
22 |
208 |
786 |
736 |
772 |
1032 |
13 |
| CDI |
0 |
78 |
195 |
535 |
796 |
1754 |
4806 |
183 |
| VCDI |
0 |
0 |
13 |
154 |
216 |
1021 |
32928 |
32398 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
53087 |
18523 |
617 |
154 |
20 |
0 |
1 |
0 |
| OW |
0 |
1393 |
701 |
479 |
102 |
43 |
19 |
0 |
| VODI |
0 |
617 |
796 |
1111 |
473 |
252 |
254 |
1 |
| ODI |
0 |
158 |
436 |
856 |
800 |
756 |
822 |
17 |
| CDI |
0 |
127 |
439 |
823 |
771 |
1746 |
7647 |
139 |
| VCDI |
0 |
0 |
31 |
177 |
247 |
1126 |
30270 |
32437 |
|
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