Validation of sea ice concentration - American sector
Bulletin date: 2025-10-21
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-21:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12128 |
3831 |
26 |
157 |
9 |
0 |
0 |
0 |
| OW |
31 |
205 |
1 |
25 |
3 |
0 |
0 |
0 |
| VODI |
81 |
469 |
16 |
81 |
12 |
1 |
0 |
0 |
| ODI |
37 |
400 |
30 |
217 |
128 |
64 |
11 |
0 |
| CDI |
2 |
177 |
20 |
278 |
374 |
402 |
282 |
18 |
| VCDI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
|
Date: 2025-10-23:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| OW |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| VODI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| ODI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| CDI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| VCDI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
|
Date: 2025-10-25:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| OW |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| VODI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| ODI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| CDI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| VCDI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
|
Date: 2025-10-27:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| OW |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| VODI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| ODI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| CDI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
| VCDI |
0 |
47 |
7 |
127 |
634 |
2927 |
13184 |
9115 |
|
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