Validation of sea ice concentration - American sector
Bulletin date: 2025-09-09
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-09:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14692 |
5321 |
9 |
55 |
1 |
0 |
0 |
0 |
| OW |
117 |
640 |
12 |
45 |
3 |
0 |
0 |
0 |
| VODI |
207 |
1778 |
54 |
270 |
45 |
14 |
3 |
0 |
| ODI |
130 |
2440 |
123 |
1201 |
379 |
275 |
78 |
0 |
| CDI |
1 |
270 |
35 |
1828 |
2785 |
2422 |
614 |
0 |
| VCDI |
0 |
0 |
0 |
32 |
1559 |
6125 |
1994 |
0 |
|
Date: 2025-09-11:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14916 |
6366 |
33 |
107 |
8 |
0 |
0 |
0 |
| OW |
52 |
663 |
12 |
44 |
9 |
0 |
0 |
0 |
| VODI |
86 |
1505 |
36 |
235 |
62 |
7 |
6 |
0 |
| ODI |
16 |
1657 |
82 |
897 |
382 |
198 |
110 |
0 |
| CDI |
0 |
262 |
41 |
1835 |
2706 |
2021 |
656 |
0 |
| VCDI |
0 |
7 |
1 |
132 |
1722 |
6300 |
2385 |
0 |
|
Date: 2025-09-13:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15197 |
7271 |
32 |
173 |
15 |
6 |
0 |
0 |
| OW |
55 |
467 |
3 |
76 |
8 |
0 |
0 |
0 |
| VODI |
71 |
904 |
15 |
236 |
34 |
19 |
1 |
0 |
| ODI |
16 |
1374 |
61 |
754 |
356 |
195 |
73 |
0 |
| CDI |
0 |
233 |
34 |
1509 |
2174 |
1623 |
608 |
0 |
| VCDI |
0 |
4 |
0 |
267 |
1962 |
6061 |
3670 |
0 |
|
Date: 2025-09-15:
| Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16011 |
7315 |
43 |
233 |
68 |
8 |
0 |
0 |
| OW |
84 |
269 |
5 |
44 |
17 |
2 |
0 |
0 |
| VODI |
167 |
498 |
13 |
154 |
69 |
63 |
16 |
0 |
| ODI |
157 |
1074 |
49 |
567 |
280 |
311 |
91 |
0 |
| CDI |
20 |
262 |
58 |
1161 |
1624 |
1359 |
546 |
0 |
| VCDI |
2 |
23 |
9 |
388 |
1609 |
5059 |
5829 |
0 |
|
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