Validation of sea ice concentration - Asian sector
Bulletin date: 2025-05-20
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-05-20:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9 |
862 |
15 |
62 |
0 |
0 |
2 |
0 |
| OW |
0 |
50 |
1 |
43 |
14 |
1 |
3 |
1 |
| VODI |
0 |
195 |
14 |
319 |
208 |
131 |
91 |
8 |
| ODI |
0 |
316 |
23 |
544 |
504 |
675 |
413 |
54 |
| CDI |
0 |
252 |
35 |
387 |
801 |
1989 |
1939 |
818 |
| VCDI |
0 |
14 |
3 |
150 |
584 |
3422 |
9367 |
7964 |
|
Date: 2025-05-22:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
34 |
840 |
9 |
116 |
13 |
0 |
1 |
0 |
| OW |
0 |
77 |
10 |
85 |
36 |
7 |
12 |
0 |
| VODI |
0 |
170 |
14 |
370 |
214 |
112 |
116 |
6 |
| ODI |
0 |
288 |
19 |
471 |
543 |
653 |
630 |
53 |
| CDI |
0 |
240 |
17 |
308 |
808 |
2064 |
2640 |
684 |
| VCDI |
0 |
50 |
7 |
197 |
670 |
3391 |
10131 |
6177 |
|
Date: 2025-05-24:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
934 |
29 |
171 |
47 |
0 |
2 |
0 |
| OW |
0 |
66 |
1 |
113 |
70 |
10 |
14 |
0 |
| VODI |
0 |
159 |
20 |
254 |
246 |
166 |
125 |
1 |
| ODI |
0 |
241 |
18 |
373 |
639 |
783 |
526 |
33 |
| CDI |
0 |
244 |
23 |
346 |
921 |
2569 |
2982 |
1077 |
| VCDI |
0 |
63 |
6 |
216 |
756 |
3379 |
8457 |
6203 |
|
Date: 2025-05-26:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1008 |
10 |
235 |
154 |
6 |
6 |
2 |
| OW |
0 |
55 |
6 |
73 |
76 |
46 |
16 |
3 |
| VODI |
0 |
131 |
7 |
189 |
238 |
206 |
113 |
27 |
| ODI |
0 |
173 |
6 |
327 |
574 |
805 |
598 |
196 |
| CDI |
0 |
178 |
13 |
323 |
908 |
2434 |
3296 |
2039 |
| VCDI |
0 |
69 |
5 |
188 |
802 |
3685 |
7266 |
5791 |
|
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