Validation of sea ice concentration - American sector
Bulletin date: 2025-09-30
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-30:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14993 |
2584 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
47 |
513 |
0 |
1 |
0 |
0 |
0 |
0 |
| VODI |
119 |
1398 |
18 |
82 |
40 |
0 |
0 |
0 |
| ODI |
84 |
2604 |
97 |
733 |
481 |
36 |
3 |
1 |
| CDI |
0 |
784 |
42 |
584 |
833 |
728 |
311 |
43 |
| VCDI |
0 |
38 |
1 |
50 |
413 |
2570 |
13056 |
2270 |
|
Date: 2025-10-02:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14729 |
3126 |
3 |
14 |
0 |
0 |
0 |
0 |
| OW |
39 |
383 |
0 |
7 |
1 |
0 |
0 |
0 |
| VODI |
24 |
958 |
11 |
51 |
3 |
1 |
0 |
0 |
| ODI |
17 |
1640 |
46 |
490 |
105 |
76 |
7 |
0 |
| CDI |
0 |
1048 |
65 |
943 |
1060 |
698 |
131 |
59 |
| VCDI |
0 |
85 |
16 |
200 |
569 |
3006 |
10638 |
5308 |
|
Date: 2025-10-04:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14213 |
3983 |
2 |
42 |
27 |
2 |
0 |
0 |
| OW |
11 |
213 |
4 |
36 |
8 |
1 |
0 |
0 |
| VODI |
6 |
421 |
8 |
122 |
15 |
11 |
0 |
0 |
| ODI |
2 |
701 |
43 |
514 |
119 |
62 |
0 |
0 |
| CDI |
0 |
668 |
36 |
891 |
781 |
805 |
250 |
8 |
| VCDI |
0 |
55 |
5 |
399 |
636 |
3735 |
14102 |
2620 |
|
Date: 2025-10-06:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14262 |
4087 |
9 |
61 |
17 |
2 |
0 |
0 |
| OW |
1 |
182 |
3 |
23 |
10 |
5 |
0 |
0 |
| VODI |
0 |
325 |
6 |
60 |
22 |
11 |
0 |
0 |
| ODI |
0 |
352 |
21 |
262 |
134 |
46 |
3 |
0 |
| CDI |
0 |
401 |
39 |
796 |
554 |
672 |
211 |
14 |
| VCDI |
0 |
146 |
19 |
365 |
880 |
4237 |
16103 |
1216 |
|
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