Validation of sea ice concentration - American sector
Bulletin date: 2025-10-28
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-28:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11484 |
2560 |
12 |
60 |
5 |
3 |
0 |
0 |
| OW |
18 |
183 |
6 |
39 |
10 |
1 |
0 |
0 |
| VODI |
35 |
386 |
13 |
239 |
50 |
5 |
3 |
0 |
| ODI |
107 |
484 |
12 |
206 |
123 |
33 |
6 |
0 |
| CDI |
53 |
200 |
6 |
170 |
266 |
216 |
180 |
36 |
| VCDI |
0 |
114 |
8 |
192 |
534 |
3435 |
18520 |
5544 |
|
Date: 2025-10-30:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10703 |
3378 |
15 |
187 |
99 |
18 |
0 |
0 |
| OW |
6 |
140 |
2 |
33 |
21 |
15 |
3 |
0 |
| VODI |
11 |
274 |
12 |
90 |
42 |
19 |
9 |
0 |
| ODI |
4 |
360 |
28 |
250 |
123 |
47 |
5 |
0 |
| CDI |
0 |
209 |
4 |
259 |
214 |
178 |
334 |
94 |
| VCDI |
0 |
96 |
6 |
222 |
486 |
3096 |
15983 |
8482 |
|
Date: 2025-11-01:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10635 |
3511 |
15 |
129 |
37 |
1 |
0 |
0 |
| OW |
2 |
149 |
4 |
25 |
5 |
4 |
0 |
0 |
| VODI |
4 |
279 |
5 |
79 |
8 |
6 |
1 |
0 |
| ODI |
0 |
455 |
21 |
132 |
30 |
5 |
6 |
0 |
| CDI |
0 |
412 |
18 |
286 |
171 |
97 |
150 |
108 |
| VCDI |
0 |
199 |
19 |
451 |
872 |
2055 |
10015 |
15156 |
|
Date: 2025-11-03:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10239 |
3557 |
19 |
245 |
119 |
17 |
2 |
0 |
| OW |
6 |
136 |
1 |
29 |
15 |
1 |
0 |
0 |
| VODI |
12 |
227 |
5 |
67 |
63 |
7 |
5 |
0 |
| ODI |
2 |
289 |
5 |
109 |
86 |
37 |
38 |
0 |
| CDI |
0 |
428 |
16 |
289 |
284 |
133 |
260 |
9 |
| VCDI |
0 |
496 |
27 |
428 |
840 |
1893 |
13275 |
11841 |
|
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