Validation of sea ice concentration - American sector
Bulletin date: 2025-10-07
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-07:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14178 |
3206 |
0 |
20 |
5 |
0 |
0 |
0 |
| OW |
20 |
317 |
0 |
11 |
4 |
0 |
0 |
0 |
| VODI |
34 |
710 |
9 |
112 |
16 |
0 |
0 |
0 |
| ODI |
93 |
825 |
31 |
407 |
440 |
337 |
5 |
0 |
| CDI |
5 |
289 |
25 |
539 |
591 |
664 |
296 |
48 |
| VCDI |
1 |
58 |
3 |
137 |
452 |
2734 |
15170 |
3765 |
|
Date: 2025-10-09:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14238 |
3780 |
3 |
38 |
12 |
2 |
0 |
0 |
| OW |
3 |
288 |
1 |
11 |
5 |
5 |
0 |
0 |
| VODI |
6 |
505 |
6 |
43 |
16 |
2 |
0 |
0 |
| ODI |
7 |
551 |
21 |
272 |
96 |
38 |
7 |
0 |
| CDI |
0 |
230 |
19 |
402 |
739 |
552 |
205 |
13 |
| VCDI |
0 |
82 |
9 |
196 |
570 |
5048 |
15075 |
2461 |
|
Date: 2025-10-11:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13598 |
4296 |
12 |
74 |
33 |
29 |
6 |
0 |
| OW |
0 |
196 |
8 |
24 |
4 |
1 |
2 |
0 |
| VODI |
0 |
379 |
8 |
66 |
15 |
7 |
3 |
0 |
| ODI |
0 |
254 |
17 |
191 |
65 |
14 |
15 |
0 |
| CDI |
0 |
183 |
35 |
362 |
553 |
282 |
211 |
0 |
| VCDI |
0 |
62 |
12 |
193 |
500 |
5499 |
17237 |
1111 |
|
Date: 2025-10-13:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13403 |
4476 |
15 |
96 |
59 |
12 |
0 |
0 |
| OW |
0 |
178 |
1 |
33 |
11 |
8 |
0 |
0 |
| VODI |
0 |
265 |
7 |
72 |
30 |
18 |
2 |
0 |
| ODI |
0 |
164 |
15 |
129 |
106 |
49 |
17 |
0 |
| CDI |
0 |
137 |
8 |
245 |
384 |
340 |
260 |
42 |
| VCDI |
0 |
39 |
10 |
147 |
362 |
3027 |
17085 |
4305 |
|
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