Validation of sea ice concentration - American sector
Bulletin date: 2025-08-14
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-08:
| 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 |
11402 |
4184 |
116 |
66 |
6 |
0 |
0 |
0 |
| OW |
24 |
1418 |
468 |
484 |
64 |
1 |
0 |
0 |
| VODI |
0 |
311 |
508 |
3200 |
1066 |
215 |
0 |
0 |
| ODI |
0 |
13 |
13 |
576 |
3582 |
658 |
114 |
0 |
| CDI |
0 |
4 |
10 |
38 |
1291 |
7794 |
3157 |
0 |
| VCDI |
0 |
1 |
4 |
4 |
14 |
131 |
3329 |
1600 |
|
...date precedes bulletin
|
Date: 2025-08-10:
| 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 |
11648 |
3936 |
88 |
31 |
4 |
0 |
0 |
0 |
| OW |
15 |
1636 |
472 |
505 |
28 |
0 |
0 |
0 |
| VODI |
0 |
383 |
503 |
3887 |
902 |
26 |
5 |
0 |
| ODI |
0 |
18 |
9 |
614 |
3302 |
1099 |
83 |
0 |
| CDI |
0 |
4 |
10 |
24 |
849 |
7489 |
3101 |
1 |
| VCDI |
0 |
4 |
3 |
2 |
17 |
780 |
4298 |
90 |
|
...date precedes bulletin
|
Date: 2025-08-12:
| 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 |
12024 |
4001 |
155 |
43 |
7 |
0 |
0 |
0 |
| OW |
17 |
1525 |
493 |
442 |
28 |
0 |
0 |
0 |
| VODI |
1 |
827 |
708 |
3203 |
793 |
57 |
0 |
0 |
| ODI |
0 |
16 |
24 |
712 |
3607 |
1093 |
10 |
0 |
| CDI |
0 |
6 |
7 |
19 |
835 |
7718 |
2254 |
0 |
| VCDI |
0 |
6 |
2 |
3 |
33 |
1089 |
4108 |
0 |
|
...date precedes bulletin
|
Date: 2025-08-14:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-08-16:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-08-18:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-08-20:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-08-22:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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