Validation of sea ice concentration - American sector
Bulletin date: 2025-05-13
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-05-13:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1 |
0 |
3 |
1 |
0 |
0 |
0 |
| OW |
0 |
5 |
1 |
19 |
6 |
1 |
0 |
8 |
| VODI |
0 |
33 |
1 |
58 |
57 |
81 |
24 |
32 |
| ODI |
0 |
38 |
1 |
84 |
231 |
208 |
216 |
102 |
| CDI |
0 |
85 |
11 |
120 |
682 |
764 |
1168 |
655 |
| VCDI |
0 |
35 |
1 |
143 |
1422 |
3632 |
16232 |
19433 |
|
Date: 2025-05-15:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
52 |
1 |
44 |
20 |
1 |
7 |
0 |
| OW |
0 |
17 |
5 |
34 |
28 |
3 |
16 |
0 |
| VODI |
0 |
37 |
3 |
59 |
105 |
32 |
93 |
5 |
| ODI |
0 |
20 |
3 |
77 |
214 |
142 |
311 |
63 |
| CDI |
0 |
82 |
17 |
124 |
488 |
599 |
1724 |
467 |
| VCDI |
0 |
7 |
2 |
163 |
867 |
2849 |
18605 |
18208 |
|
Date: 2025-05-17:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
123 |
2 |
89 |
49 |
5 |
16 |
0 |
| OW |
0 |
30 |
1 |
42 |
44 |
13 |
31 |
0 |
| VODI |
0 |
34 |
1 |
69 |
138 |
129 |
87 |
3 |
| ODI |
0 |
27 |
0 |
108 |
264 |
244 |
304 |
61 |
| CDI |
0 |
67 |
0 |
100 |
467 |
675 |
1608 |
858 |
| VCDI |
0 |
59 |
4 |
280 |
1036 |
2469 |
15597 |
20460 |
|
Date: 2025-05-19:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
146 |
18 |
203 |
87 |
21 |
1 |
17 |
| OW |
0 |
25 |
2 |
72 |
102 |
91 |
7 |
22 |
| VODI |
0 |
12 |
1 |
85 |
146 |
197 |
70 |
46 |
| ODI |
0 |
16 |
0 |
99 |
201 |
240 |
345 |
195 |
| CDI |
0 |
43 |
0 |
142 |
344 |
571 |
1978 |
991 |
| VCDI |
0 |
43 |
10 |
244 |
786 |
2518 |
16704 |
18753 |
|
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