Validation of sea ice concentration - American sector
Bulletin date: 2025-04-08
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-04-08:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
52 |
43 |
34 |
3 |
| CDI |
0 |
0 |
0 |
4 |
55 |
193 |
265 |
317 |
| VCDI |
0 |
0 |
0 |
2 |
160 |
1400 |
9448 |
33615 |
|
Date: 2025-04-10:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
2 |
33 |
10 |
0 |
0 |
| ODI |
0 |
0 |
0 |
12 |
66 |
54 |
68 |
1 |
| CDI |
0 |
0 |
0 |
28 |
97 |
263 |
449 |
267 |
| VCDI |
0 |
0 |
0 |
76 |
330 |
1388 |
9938 |
32511 |
|
Date: 2025-04-12:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
1 |
2 |
7 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
6 |
4 |
0 |
0 |
| VODI |
0 |
0 |
0 |
2 |
11 |
7 |
13 |
0 |
| ODI |
0 |
1 |
0 |
22 |
29 |
76 |
134 |
19 |
| CDI |
0 |
9 |
5 |
59 |
89 |
242 |
586 |
298 |
| VCDI |
0 |
12 |
8 |
215 |
274 |
1496 |
10650 |
31317 |
|
Date: 2025-04-14:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
4 |
0 |
10 |
0 |
0 |
| OW |
0 |
0 |
0 |
3 |
0 |
3 |
1 |
0 |
| VODI |
0 |
0 |
0 |
3 |
7 |
20 |
13 |
1 |
| ODI |
0 |
0 |
0 |
8 |
33 |
68 |
141 |
54 |
| CDI |
0 |
0 |
0 |
74 |
127 |
293 |
728 |
238 |
| VCDI |
0 |
0 |
0 |
106 |
387 |
1676 |
11823 |
29773 |
|
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