Validation of sea ice concentration - American sector
Bulletin date: 2025-10-14
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-14:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13335 |
3950 |
1 |
9 |
0 |
0 |
0 |
0 |
| OW |
8 |
223 |
3 |
12 |
0 |
0 |
0 |
0 |
| VODI |
10 |
490 |
18 |
79 |
7 |
1 |
0 |
0 |
| ODI |
5 |
471 |
33 |
318 |
106 |
42 |
4 |
0 |
| CDI |
0 |
86 |
12 |
431 |
341 |
275 |
334 |
78 |
| VCDI |
0 |
7 |
1 |
119 |
484 |
2257 |
18078 |
3929 |
|
Date: 2025-10-16:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13092 |
4333 |
9 |
68 |
10 |
0 |
0 |
0 |
| OW |
0 |
218 |
12 |
46 |
17 |
0 |
0 |
0 |
| VODI |
2 |
380 |
16 |
150 |
42 |
6 |
0 |
0 |
| ODI |
0 |
228 |
17 |
261 |
138 |
37 |
11 |
3 |
| CDI |
0 |
68 |
5 |
221 |
321 |
259 |
430 |
49 |
| VCDI |
0 |
15 |
2 |
121 |
396 |
2622 |
17770 |
4182 |
|
Date: 2025-10-18:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12705 |
4469 |
23 |
182 |
61 |
35 |
0 |
0 |
| OW |
5 |
203 |
7 |
37 |
8 |
18 |
0 |
0 |
| VODI |
9 |
354 |
21 |
120 |
33 |
20 |
0 |
0 |
| ODI |
1 |
213 |
17 |
191 |
56 |
62 |
2 |
3 |
| CDI |
0 |
69 |
17 |
214 |
207 |
168 |
224 |
187 |
| VCDI |
0 |
27 |
5 |
193 |
639 |
3021 |
16215 |
5516 |
|
Date: 2025-10-20:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12284 |
4543 |
47 |
273 |
122 |
115 |
6 |
0 |
| OW |
4 |
158 |
2 |
46 |
16 |
19 |
1 |
0 |
| VODI |
7 |
280 |
7 |
65 |
38 |
27 |
6 |
0 |
| ODI |
12 |
277 |
12 |
126 |
93 |
63 |
19 |
2 |
| CDI |
1 |
139 |
12 |
127 |
172 |
244 |
342 |
276 |
| VCDI |
0 |
97 |
13 |
142 |
447 |
3069 |
11744 |
10062 |
|
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