Validation of sea ice concentration - Asian sector
Bulletin date: 2025-09-16
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-16:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11732 |
4663 |
1 |
14 |
1 |
1 |
0 |
0 |
| OW |
0 |
211 |
9 |
36 |
13 |
0 |
0 |
0 |
| VODI |
0 |
676 |
22 |
192 |
76 |
8 |
0 |
0 |
| ODI |
0 |
730 |
46 |
604 |
329 |
90 |
3 |
0 |
| CDI |
0 |
148 |
21 |
685 |
930 |
1087 |
456 |
0 |
| VCDI |
0 |
2 |
0 |
16 |
619 |
5538 |
3287 |
0 |
|
Date: 2025-09-18:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11903 |
5185 |
10 |
86 |
24 |
0 |
0 |
0 |
| OW |
0 |
271 |
4 |
72 |
27 |
2 |
0 |
0 |
| VODI |
0 |
439 |
18 |
262 |
109 |
7 |
0 |
0 |
| ODI |
0 |
482 |
28 |
444 |
292 |
62 |
1 |
0 |
| CDI |
0 |
115 |
13 |
603 |
677 |
1169 |
264 |
0 |
| VCDI |
0 |
2 |
0 |
70 |
387 |
6100 |
3118 |
0 |
|
Date: 2025-09-20:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12268 |
5493 |
13 |
185 |
56 |
8 |
0 |
0 |
| OW |
0 |
150 |
7 |
61 |
17 |
4 |
0 |
0 |
| VODI |
0 |
298 |
6 |
174 |
60 |
7 |
0 |
0 |
| ODI |
0 |
347 |
27 |
365 |
170 |
71 |
2 |
0 |
| CDI |
0 |
127 |
22 |
374 |
484 |
1068 |
385 |
0 |
| VCDI |
0 |
19 |
6 |
135 |
334 |
4656 |
4847 |
0 |
|
Date: 2025-09-22:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12117 |
5730 |
36 |
239 |
81 |
30 |
0 |
0 |
| OW |
0 |
86 |
8 |
70 |
55 |
4 |
0 |
0 |
| VODI |
0 |
121 |
17 |
143 |
113 |
21 |
0 |
0 |
| ODI |
0 |
145 |
21 |
278 |
276 |
88 |
22 |
0 |
| CDI |
0 |
31 |
9 |
258 |
408 |
694 |
742 |
0 |
| VCDI |
0 |
8 |
1 |
74 |
292 |
1944 |
8084 |
0 |
|
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