Validation of sea ice concentration
Bulletin date: 2025-03-06
Model vs. observations, sea ice class contingency tables
Date: 2025-02-28:
| 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 |
60807 |
23804 |
3429 |
609 |
124 |
50 |
28 |
0 |
| OW |
0 |
395 |
2187 |
978 |
399 |
94 |
85 |
0 |
| VODI |
0 |
128 |
1117 |
1359 |
928 |
465 |
143 |
0 |
| ODI |
0 |
62 |
470 |
798 |
691 |
794 |
338 |
7 |
| CDI |
0 |
30 |
344 |
520 |
789 |
1677 |
2750 |
136 |
| VCDI |
0 |
3 |
287 |
515 |
674 |
1905 |
29207 |
19718 |
|
...date precedes bulletin
|
Date: 2025-03-04:
| 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 |
60950 |
23066 |
4550 |
1053 |
214 |
186 |
110 |
0 |
| OW |
0 |
366 |
1775 |
793 |
356 |
201 |
47 |
0 |
| VODI |
0 |
96 |
1074 |
891 |
796 |
692 |
149 |
0 |
| ODI |
0 |
51 |
520 |
777 |
799 |
622 |
428 |
15 |
| CDI |
0 |
4 |
492 |
598 |
709 |
1124 |
1861 |
213 |
| VCDI |
0 |
1 |
483 |
743 |
883 |
1660 |
28143 |
21353 |
|
...date precedes bulletin
|
Date: 2025-03-06:
| 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 |
62256 |
21515 |
4501 |
1212 |
584 |
261 |
60 |
0 |
| OW |
0 |
468 |
1619 |
768 |
496 |
264 |
53 |
0 |
| VODI |
0 |
101 |
981 |
937 |
826 |
935 |
175 |
3 |
| ODI |
0 |
46 |
317 |
675 |
810 |
1171 |
398 |
47 |
| CDI |
0 |
18 |
136 |
528 |
805 |
1273 |
1769 |
282 |
| VCDI |
0 |
2 |
204 |
236 |
723 |
2294 |
27639 |
21456 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
62256 |
21515 |
4501 |
1212 |
584 |
261 |
60 |
0 |
| OW |
0 |
468 |
1619 |
768 |
496 |
264 |
53 |
0 |
| VODI |
0 |
101 |
981 |
937 |
826 |
935 |
175 |
3 |
| ODI |
0 |
46 |
317 |
675 |
810 |
1171 |
398 |
47 |
| CDI |
0 |
18 |
136 |
528 |
805 |
1273 |
1769 |
282 |
| VCDI |
0 |
2 |
204 |
236 |
723 |
2294 |
27639 |
21456 |
|
Date: 2025-03-10:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-03-12:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-03-14:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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