Validation of sea ice concentration - Full domain
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 |
72299 |
11264 |
19 |
81 |
16 |
1 |
0 |
0 |
| OW |
220 |
1318 |
16 |
123 |
19 |
3 |
2 |
0 |
| VODI |
238 |
2899 |
77 |
691 |
307 |
134 |
22 |
0 |
| ODI |
173 |
3983 |
197 |
2588 |
2858 |
1386 |
123 |
0 |
| CDI |
13 |
939 |
104 |
2475 |
7946 |
7079 |
972 |
0 |
| VCDI |
0 |
3 |
0 |
245 |
4060 |
7872 |
1668 |
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 |
73099 |
14404 |
90 |
495 |
91 |
2 |
0 |
0 |
| OW |
38 |
928 |
24 |
222 |
71 |
1 |
0 |
0 |
| VODI |
71 |
1596 |
62 |
618 |
284 |
138 |
14 |
0 |
| ODI |
110 |
2492 |
150 |
2227 |
2505 |
1288 |
114 |
0 |
| CDI |
19 |
782 |
79 |
2613 |
7059 |
6671 |
1065 |
0 |
| VCDI |
0 |
11 |
2 |
294 |
4079 |
7817 |
2808 |
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 |
73059 |
15944 |
123 |
876 |
192 |
9 |
0 |
0 |
| OW |
15 |
560 |
17 |
220 |
59 |
3 |
1 |
0 |
| VODI |
34 |
1068 |
46 |
471 |
249 |
56 |
6 |
0 |
| ODI |
75 |
2147 |
114 |
1940 |
1979 |
1019 |
107 |
0 |
| CDI |
10 |
806 |
99 |
2538 |
6284 |
6858 |
771 |
0 |
| VCDI |
0 |
38 |
4 |
455 |
3992 |
10163 |
2026 |
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 |
73229 |
16564 |
139 |
1076 |
298 |
19 |
4 |
0 |
| OW |
14 |
424 |
11 |
150 |
58 |
6 |
0 |
0 |
| VODI |
27 |
859 |
30 |
391 |
190 |
54 |
17 |
0 |
| ODI |
55 |
1852 |
104 |
1418 |
1394 |
977 |
73 |
0 |
| CDI |
7 |
720 |
83 |
2617 |
5585 |
6400 |
494 |
0 |
| VCDI |
0 |
89 |
18 |
679 |
4010 |
12084 |
2214 |
0 |
|
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