Validation of sea ice concentration - Full domain
Bulletin date: 2025-07-22
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-07-22:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
50449 |
15361 |
53 |
308 |
57 |
7 |
0 |
0 |
| OW |
236 |
2153 |
64 |
365 |
113 |
25 |
0 |
0 |
| VODI |
102 |
3068 |
98 |
1128 |
649 |
313 |
20 |
0 |
| ODI |
1 |
1981 |
157 |
1976 |
2934 |
1947 |
164 |
0 |
| CDI |
0 |
702 |
69 |
1749 |
7723 |
11036 |
634 |
0 |
| VCDI |
0 |
192 |
19 |
938 |
7313 |
18866 |
1463 |
0 |
|
Date: 2025-07-24:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
52577 |
19498 |
189 |
1519 |
480 |
56 |
3 |
0 |
| OW |
0 |
493 |
28 |
353 |
197 |
62 |
9 |
0 |
| VODI |
0 |
869 |
71 |
722 |
566 |
389 |
61 |
0 |
| ODI |
0 |
1135 |
96 |
1280 |
2433 |
2244 |
72 |
0 |
| CDI |
0 |
616 |
60 |
1490 |
7326 |
10872 |
371 |
0 |
| VCDI |
0 |
343 |
28 |
1092 |
7395 |
18334 |
1104 |
0 |
|
Date: 2025-07-26:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
53574 |
20157 |
241 |
1913 |
685 |
76 |
14 |
0 |
| OW |
0 |
407 |
18 |
256 |
197 |
63 |
16 |
0 |
| VODI |
0 |
757 |
43 |
564 |
654 |
316 |
34 |
0 |
| ODI |
0 |
977 |
59 |
1005 |
2634 |
1734 |
50 |
0 |
| CDI |
0 |
769 |
51 |
1515 |
7492 |
9430 |
334 |
0 |
| VCDI |
0 |
533 |
37 |
1167 |
8124 |
17105 |
1432 |
0 |
|
Date: 2025-07-28:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
54949 |
20197 |
254 |
2062 |
669 |
138 |
34 |
0 |
| OW |
0 |
317 |
19 |
223 |
126 |
84 |
23 |
0 |
| VODI |
0 |
662 |
30 |
452 |
533 |
320 |
55 |
0 |
| ODI |
0 |
836 |
45 |
856 |
2445 |
1811 |
111 |
0 |
| CDI |
0 |
884 |
80 |
1439 |
6927 |
9248 |
440 |
0 |
| VCDI |
0 |
617 |
53 |
1400 |
7968 |
15922 |
2204 |
0 |
|
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