Validation of sea ice concentration - Full domain
Bulletin date: 2025-09-09
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-09:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72717 |
13061 |
9 |
82 |
13 |
0 |
0 |
0 |
| OW |
120 |
1037 |
24 |
112 |
17 |
0 |
0 |
0 |
| VODI |
207 |
2723 |
97 |
561 |
175 |
35 |
4 |
0 |
| ODI |
130 |
3227 |
218 |
2450 |
1450 |
969 |
118 |
0 |
| CDI |
1 |
416 |
74 |
3159 |
6367 |
6693 |
963 |
0 |
| VCDI |
0 |
3 |
0 |
73 |
3265 |
10871 |
2992 |
0 |
|
Date: 2025-09-11:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72907 |
14907 |
65 |
334 |
47 |
0 |
0 |
0 |
| OW |
52 |
972 |
24 |
145 |
36 |
0 |
0 |
0 |
| VODI |
86 |
2013 |
57 |
519 |
188 |
18 |
7 |
0 |
| ODI |
16 |
2086 |
125 |
1867 |
1221 |
592 |
141 |
0 |
| CDI |
0 |
404 |
82 |
2926 |
4690 |
5253 |
1260 |
0 |
| VCDI |
0 |
20 |
2 |
202 |
2889 |
13876 |
4404 |
0 |
|
Date: 2025-09-13:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72868 |
16274 |
65 |
571 |
97 |
9 |
0 |
0 |
| OW |
55 |
691 |
12 |
182 |
60 |
0 |
0 |
0 |
| VODI |
71 |
1203 |
33 |
472 |
179 |
33 |
5 |
0 |
| ODI |
16 |
1704 |
83 |
1321 |
825 |
493 |
134 |
0 |
| CDI |
0 |
383 |
69 |
2519 |
3559 |
3662 |
1187 |
0 |
| VCDI |
0 |
13 |
0 |
456 |
3389 |
14786 |
6954 |
0 |
|
Date: 2025-09-15:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
73935 |
16193 |
102 |
735 |
304 |
48 |
0 |
0 |
| OW |
84 |
402 |
17 |
130 |
55 |
13 |
0 |
0 |
| VODI |
167 |
704 |
25 |
325 |
166 |
99 |
19 |
0 |
| ODI |
157 |
1337 |
67 |
1030 |
575 |
524 |
164 |
0 |
| CDI |
20 |
421 |
79 |
1912 |
2881 |
3313 |
1123 |
0 |
| VCDI |
2 |
46 |
13 |
501 |
2515 |
14377 |
9853 |
0 |
|
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