Validation of sea ice concentration - American sector
Bulletin date: 2025-11-11
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-11-11:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9261 |
2156 |
4 |
29 |
1 |
3 |
0 |
0 |
| OW |
22 |
126 |
2 |
13 |
11 |
3 |
0 |
0 |
| VODI |
35 |
371 |
5 |
48 |
32 |
13 |
0 |
0 |
| ODI |
9 |
498 |
21 |
187 |
108 |
57 |
3 |
0 |
| CDI |
0 |
384 |
14 |
399 |
530 |
184 |
113 |
2 |
| VCDI |
0 |
177 |
3 |
294 |
1167 |
2098 |
10373 |
16801 |
|
Date: 2025-11-13:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9200 |
2317 |
13 |
165 |
76 |
15 |
0 |
0 |
| OW |
43 |
154 |
4 |
24 |
18 |
15 |
0 |
0 |
| VODI |
48 |
262 |
5 |
46 |
51 |
36 |
1 |
0 |
| ODI |
32 |
292 |
11 |
74 |
56 |
45 |
7 |
0 |
| CDI |
13 |
262 |
29 |
281 |
416 |
158 |
119 |
5 |
| VCDI |
0 |
320 |
16 |
332 |
860 |
2265 |
12186 |
15285 |
|
Date: 2025-11-15:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9037 |
2452 |
35 |
209 |
84 |
32 |
8 |
0 |
| OW |
6 |
96 |
1 |
35 |
41 |
15 |
2 |
0 |
| VODI |
10 |
157 |
6 |
47 |
45 |
32 |
3 |
0 |
| ODI |
10 |
229 |
4 |
64 |
36 |
34 |
6 |
0 |
| CDI |
0 |
244 |
23 |
203 |
146 |
223 |
149 |
0 |
| VCDI |
0 |
274 |
22 |
441 |
595 |
2451 |
15635 |
12415 |
|
Date: 2025-11-17:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8604 |
2507 |
24 |
251 |
147 |
38 |
10 |
0 |
| OW |
0 |
108 |
0 |
16 |
33 |
13 |
0 |
0 |
| VODI |
0 |
177 |
1 |
22 |
37 |
39 |
1 |
0 |
| ODI |
0 |
154 |
14 |
57 |
56 |
73 |
2 |
0 |
| CDI |
0 |
196 |
8 |
130 |
243 |
230 |
128 |
5 |
| VCDI |
0 |
226 |
16 |
322 |
976 |
2578 |
14249 |
13866 |
|
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