Validation of sea ice concentration - American sector
Bulletin date: 2025-08-19
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-19:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12417 |
3426 |
8 |
43 |
5 |
1 |
0 |
0 |
| OW |
109 |
781 |
10 |
82 |
15 |
2 |
0 |
0 |
| VODI |
87 |
1361 |
59 |
345 |
208 |
51 |
6 |
0 |
| ODI |
8 |
2682 |
293 |
2091 |
1370 |
533 |
157 |
1 |
| CDI |
9 |
780 |
97 |
1345 |
2872 |
2547 |
1255 |
26 |
| VCDI |
0 |
8 |
4 |
232 |
1985 |
5093 |
3096 |
57 |
|
Date: 2025-08-21:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13130 |
5103 |
72 |
240 |
24 |
0 |
0 |
0 |
| OW |
3 |
239 |
11 |
71 |
15 |
2 |
0 |
0 |
| VODI |
6 |
505 |
51 |
246 |
172 |
60 |
8 |
0 |
| ODI |
5 |
3001 |
227 |
1506 |
1219 |
591 |
247 |
0 |
| CDI |
7 |
991 |
96 |
1279 |
2654 |
2150 |
1656 |
0 |
| VCDI |
0 |
41 |
13 |
352 |
1902 |
4019 |
3643 |
0 |
|
Date: 2025-08-23:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13036 |
5584 |
67 |
309 |
45 |
2 |
0 |
0 |
| OW |
3 |
202 |
12 |
53 |
16 |
0 |
0 |
0 |
| VODI |
7 |
561 |
27 |
260 |
143 |
55 |
3 |
0 |
| ODI |
9 |
2973 |
197 |
1312 |
1196 |
526 |
269 |
0 |
| CDI |
11 |
1085 |
97 |
1298 |
2847 |
2616 |
1209 |
0 |
| VCDI |
0 |
78 |
17 |
424 |
1719 |
4706 |
2583 |
0 |
|
Date: 2025-08-25:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13983 |
4770 |
65 |
274 |
79 |
2 |
2 |
0 |
| OW |
6 |
240 |
6 |
45 |
29 |
1 |
0 |
0 |
| VODI |
8 |
664 |
28 |
230 |
140 |
40 |
6 |
0 |
| ODI |
30 |
3072 |
118 |
1230 |
1095 |
576 |
170 |
0 |
| CDI |
22 |
1157 |
86 |
1297 |
2686 |
2962 |
962 |
0 |
| VCDI |
0 |
158 |
21 |
440 |
1888 |
5359 |
1610 |
0 |
|
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