Validation of sea ice concentration - Asian 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 |
467 |
3 |
35 |
8 |
1 |
0 |
0 |
| OW |
0 |
74 |
2 |
19 |
3 |
3 |
1 |
1 |
| VODI |
0 |
177 |
9 |
120 |
131 |
87 |
55 |
4 |
| ODI |
0 |
107 |
14 |
113 |
323 |
363 |
265 |
26 |
| CDI |
0 |
21 |
6 |
151 |
661 |
860 |
1000 |
164 |
| VCDI |
0 |
3 |
4 |
104 |
910 |
2634 |
8445 |
14909 |
|
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 |
28 |
570 |
6 |
65 |
12 |
0 |
3 |
3 |
| OW |
2 |
32 |
1 |
36 |
27 |
1 |
14 |
2 |
| VODI |
8 |
82 |
7 |
171 |
234 |
62 |
78 |
7 |
| ODI |
4 |
59 |
5 |
150 |
385 |
262 |
309 |
27 |
| CDI |
2 |
24 |
3 |
160 |
677 |
704 |
874 |
209 |
| VCDI |
0 |
18 |
10 |
242 |
1046 |
2744 |
7478 |
15440 |
|
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 |
30 |
559 |
7 |
71 |
22 |
5 |
5 |
8 |
| OW |
2 |
26 |
1 |
62 |
56 |
15 |
40 |
6 |
| VODI |
4 |
56 |
5 |
157 |
226 |
132 |
89 |
11 |
| ODI |
3 |
64 |
14 |
147 |
314 |
348 |
303 |
70 |
| CDI |
0 |
95 |
41 |
216 |
383 |
779 |
1117 |
474 |
| VCDI |
0 |
101 |
19 |
453 |
945 |
2507 |
7591 |
14704 |
|
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 |
36 |
584 |
14 |
80 |
38 |
13 |
39 |
24 |
| OW |
1 |
36 |
3 |
84 |
82 |
44 |
51 |
9 |
| VODI |
5 |
48 |
5 |
144 |
200 |
134 |
113 |
29 |
| ODI |
1 |
50 |
4 |
121 |
281 |
319 |
469 |
162 |
| CDI |
0 |
87 |
19 |
187 |
329 |
738 |
1392 |
607 |
| VCDI |
0 |
137 |
25 |
526 |
938 |
2302 |
8341 |
13432 |
|
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