Validation of sea ice concentration - American sector
Bulletin date: 2025-08-26
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-26:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13736 |
3017 |
3 |
25 |
6 |
0 |
0 |
0 |
| OW |
134 |
761 |
10 |
33 |
11 |
0 |
0 |
0 |
| VODI |
137 |
1631 |
53 |
222 |
87 |
11 |
6 |
0 |
| ODI |
75 |
3935 |
187 |
1616 |
1091 |
562 |
259 |
0 |
| CDI |
28 |
817 |
58 |
1189 |
3147 |
3048 |
1051 |
0 |
| VCDI |
0 |
33 |
5 |
199 |
1795 |
4867 |
1712 |
0 |
|
Date: 2025-08-28:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14383 |
4384 |
20 |
246 |
68 |
5 |
0 |
0 |
| OW |
25 |
389 |
9 |
66 |
23 |
5 |
0 |
0 |
| VODI |
29 |
827 |
27 |
190 |
82 |
26 |
2 |
0 |
| ODI |
149 |
3164 |
98 |
1291 |
846 |
623 |
56 |
0 |
| CDI |
31 |
936 |
56 |
1215 |
2427 |
4045 |
441 |
0 |
| VCDI |
0 |
60 |
6 |
290 |
1215 |
6695 |
1107 |
0 |
|
Date: 2025-08-30:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14585 |
4924 |
41 |
245 |
118 |
2 |
0 |
0 |
| OW |
9 |
323 |
6 |
50 |
20 |
1 |
0 |
0 |
| VODI |
20 |
734 |
18 |
193 |
87 |
18 |
3 |
0 |
| ODI |
113 |
2522 |
60 |
1045 |
805 |
428 |
41 |
0 |
| CDI |
34 |
974 |
47 |
979 |
2979 |
3548 |
316 |
0 |
| VCDI |
0 |
135 |
7 |
278 |
2461 |
6544 |
844 |
0 |
|
Date: 2025-09-01:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14851 |
5042 |
49 |
214 |
106 |
14 |
0 |
0 |
| OW |
20 |
336 |
9 |
67 |
18 |
6 |
0 |
0 |
| VODI |
39 |
811 |
22 |
173 |
89 |
40 |
2 |
0 |
| ODI |
132 |
2263 |
89 |
928 |
736 |
377 |
36 |
0 |
| CDI |
77 |
1103 |
52 |
1118 |
2408 |
2923 |
432 |
0 |
| VCDI |
0 |
198 |
19 |
432 |
2716 |
6475 |
1135 |
0 |
|
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