Validation of sea ice concentration - American sector
Bulletin date: 2025-05-06
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-05-06:
| 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 |
5 |
| VODI |
0 |
0 |
0 |
10 |
4 |
4 |
12 |
18 |
| ODI |
0 |
0 |
0 |
50 |
98 |
69 |
123 |
204 |
| CDI |
0 |
0 |
0 |
36 |
398 |
534 |
830 |
1001 |
| VCDI |
0 |
0 |
0 |
5 |
345 |
1789 |
9974 |
30085 |
|
Date: 2025-05-08:
| 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 |
1 |
4 |
1 |
0 |
0 |
| OW |
0 |
0 |
0 |
8 |
2 |
0 |
5 |
0 |
| VODI |
0 |
1 |
0 |
18 |
27 |
26 |
42 |
12 |
| ODI |
0 |
9 |
0 |
51 |
149 |
118 |
236 |
90 |
| CDI |
0 |
13 |
0 |
35 |
478 |
440 |
966 |
851 |
| VCDI |
0 |
8 |
0 |
42 |
747 |
2557 |
12783 |
25874 |
|
Date: 2025-05-10:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
7 |
0 |
50 |
7 |
4 |
11 |
9 |
| OW |
0 |
9 |
0 |
23 |
31 |
8 |
10 |
11 |
| VODI |
0 |
36 |
0 |
38 |
99 |
36 |
29 |
55 |
| ODI |
0 |
15 |
2 |
100 |
168 |
131 |
169 |
145 |
| CDI |
0 |
9 |
3 |
100 |
408 |
490 |
868 |
1107 |
| VCDI |
0 |
4 |
1 |
121 |
683 |
1969 |
12179 |
26449 |
|
Date: 2025-05-12:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
64 |
0 |
94 |
38 |
11 |
10 |
6 |
| OW |
0 |
21 |
0 |
32 |
29 |
16 |
3 |
14 |
| VODI |
0 |
17 |
5 |
38 |
103 |
56 |
32 |
57 |
| ODI |
0 |
8 |
4 |
69 |
174 |
150 |
188 |
122 |
| CDI |
0 |
11 |
0 |
111 |
394 |
620 |
1172 |
1060 |
| VCDI |
0 |
19 |
1 |
150 |
831 |
2420 |
13621 |
23823 |
|
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