Validation of sea ice concentration - American sector
Bulletin date: 2025-08-05
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-05:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11062 |
3580 |
17 |
77 |
19 |
0 |
0 |
0 |
| OW |
26 |
633 |
10 |
67 |
18 |
4 |
1 |
0 |
| VODI |
6 |
887 |
19 |
261 |
112 |
117 |
17 |
0 |
| ODI |
0 |
710 |
115 |
1356 |
835 |
871 |
263 |
0 |
| CDI |
0 |
458 |
77 |
1680 |
2305 |
2789 |
1504 |
0 |
| VCDI |
0 |
67 |
12 |
957 |
3079 |
5710 |
5821 |
15 |
|
Date: 2025-08-07:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11260 |
5117 |
48 |
331 |
84 |
5 |
1 |
0 |
| OW |
0 |
125 |
16 |
83 |
24 |
6 |
3 |
0 |
| VODI |
0 |
211 |
18 |
261 |
125 |
117 |
15 |
0 |
| ODI |
0 |
429 |
72 |
1131 |
879 |
777 |
245 |
19 |
| CDI |
0 |
393 |
101 |
1535 |
2544 |
2493 |
1799 |
206 |
| VCDI |
0 |
108 |
26 |
1078 |
3239 |
5308 |
4454 |
871 |
|
Date: 2025-08-09:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11240 |
5333 |
71 |
435 |
93 |
0 |
1 |
0 |
| OW |
0 |
91 |
9 |
75 |
13 |
1 |
5 |
0 |
| VODI |
0 |
197 |
18 |
271 |
139 |
80 |
66 |
0 |
| ODI |
0 |
461 |
68 |
1133 |
822 |
635 |
402 |
3 |
| CDI |
0 |
491 |
93 |
1561 |
2090 |
2787 |
1910 |
111 |
| VCDI |
0 |
331 |
49 |
1038 |
2192 |
5093 |
5312 |
837 |
|
Date: 2025-08-11:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11489 |
5257 |
59 |
426 |
96 |
12 |
0 |
0 |
| OW |
0 |
109 |
14 |
70 |
16 |
5 |
0 |
0 |
| VODI |
0 |
212 |
27 |
275 |
130 |
104 |
35 |
0 |
| ODI |
0 |
492 |
85 |
1201 |
909 |
767 |
257 |
0 |
| CDI |
0 |
620 |
87 |
1740 |
2382 |
3024 |
1526 |
6 |
| VCDI |
0 |
331 |
61 |
1030 |
2327 |
6109 |
4259 |
8 |
|
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