Validation of sea ice concentration - American sector
Bulletin date: 2025-06-26
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-06-20:
| 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 |
545 |
2617 |
23 |
11 |
1 |
0 |
0 |
0 |
| OW |
71 |
1982 |
204 |
192 |
23 |
0 |
0 |
0 |
| VODI |
6 |
592 |
227 |
652 |
319 |
31 |
18 |
0 |
| ODI |
0 |
75 |
73 |
504 |
1393 |
379 |
122 |
0 |
| CDI |
0 |
6 |
12 |
155 |
1826 |
3155 |
1297 |
0 |
| VCDI |
0 |
0 |
0 |
5 |
1745 |
11282 |
15485 |
838 |
|
...date precedes bulletin
|
Date: 2025-06-22:
| 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 |
743 |
2959 |
21 |
7 |
1 |
0 |
0 |
0 |
| OW |
136 |
1778 |
193 |
227 |
22 |
0 |
2 |
0 |
| VODI |
6 |
683 |
170 |
569 |
265 |
51 |
24 |
0 |
| ODI |
0 |
118 |
95 |
410 |
1507 |
709 |
43 |
0 |
| CDI |
0 |
31 |
16 |
228 |
1552 |
3940 |
739 |
25 |
| VCDI |
0 |
0 |
0 |
3 |
1568 |
11423 |
10792 |
4810 |
|
...date precedes bulletin
|
Date: 2025-06-24:
| 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 |
968 |
3517 |
51 |
30 |
2 |
0 |
1 |
0 |
| OW |
101 |
1503 |
124 |
271 |
27 |
4 |
3 |
0 |
| VODI |
5 |
650 |
150 |
458 |
253 |
65 |
18 |
0 |
| ODI |
0 |
160 |
84 |
493 |
1567 |
392 |
53 |
0 |
| CDI |
0 |
62 |
31 |
343 |
2241 |
4219 |
443 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
4062 |
12784 |
9220 |
1510 |
|
...date precedes bulletin
|
Date: 2025-06-26:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-06-28:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-06-30:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-07-02:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-07-04:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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