Validation of sea ice concentration - American sector
Bulletin date: 2025-09-02
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-02:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14599 |
3302 |
4 |
14 |
3 |
0 |
0 |
0 |
| OW |
186 |
905 |
2 |
32 |
5 |
2 |
0 |
0 |
| VODI |
222 |
1836 |
30 |
213 |
71 |
55 |
5 |
0 |
| ODI |
173 |
3093 |
109 |
1114 |
1007 |
469 |
46 |
0 |
| CDI |
13 |
824 |
72 |
1293 |
3164 |
3206 |
285 |
0 |
| VCDI |
0 |
3 |
0 |
99 |
2077 |
5785 |
1239 |
0 |
|
Date: 2025-09-04:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15277 |
5330 |
30 |
177 |
13 |
0 |
0 |
0 |
| OW |
38 |
602 |
10 |
67 |
20 |
0 |
0 |
0 |
| VODI |
71 |
1088 |
17 |
231 |
77 |
47 |
8 |
0 |
| ODI |
110 |
2092 |
82 |
1088 |
771 |
454 |
66 |
0 |
| CDI |
19 |
657 |
49 |
1466 |
2887 |
3020 |
562 |
0 |
| VCDI |
0 |
9 |
1 |
114 |
2049 |
5022 |
1936 |
0 |
|
Date: 2025-09-06:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15188 |
6491 |
46 |
373 |
69 |
6 |
0 |
0 |
| OW |
15 |
398 |
4 |
76 |
12 |
0 |
0 |
0 |
| VODI |
34 |
759 |
18 |
187 |
67 |
26 |
2 |
0 |
| ODI |
75 |
1849 |
70 |
971 |
627 |
367 |
36 |
0 |
| CDI |
10 |
690 |
58 |
1435 |
2439 |
3104 |
315 |
0 |
| VCDI |
0 |
26 |
3 |
231 |
1907 |
6598 |
975 |
0 |
|
Date: 2025-09-08:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15132 |
7296 |
81 |
428 |
69 |
8 |
0 |
0 |
| OW |
14 |
297 |
1 |
54 |
6 |
1 |
0 |
0 |
| VODI |
27 |
616 |
13 |
140 |
30 |
13 |
7 |
0 |
| ODI |
55 |
1590 |
69 |
748 |
428 |
331 |
30 |
0 |
| CDI |
7 |
634 |
52 |
1513 |
2302 |
2681 |
270 |
0 |
| VCDI |
0 |
65 |
9 |
366 |
1801 |
7181 |
1192 |
0 |
|
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