Validation of sea ice concentration - American sector
Bulletin date: 2025-10-09
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-03:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-05:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-07:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-09:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
Date: 2025-10-11:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
28541 |
4553 |
237 |
250 |
17 |
0 |
0 |
0 |
| OW |
3 |
338 |
159 |
477 |
174 |
5 |
0 |
0 |
| VODI |
0 |
12 |
25 |
402 |
682 |
120 |
0 |
0 |
| ODI |
0 |
0 |
0 |
78 |
392 |
503 |
46 |
0 |
| CDI |
0 |
0 |
0 |
13 |
176 |
901 |
180 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
31 |
5671 |
14104 |
3141 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
28541 |
4487 |
229 |
292 |
38 |
0 |
0 |
0 |
| OW |
3 |
380 |
143 |
428 |
178 |
10 |
0 |
0 |
| VODI |
0 |
36 |
49 |
396 |
619 |
97 |
0 |
0 |
| ODI |
0 |
0 |
0 |
95 |
487 |
508 |
11 |
0 |
| CDI |
0 |
0 |
0 |
9 |
128 |
1095 |
205 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
22 |
5490 |
14114 |
3141 |
|
Date: 2025-10-13:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
28222 |
4489 |
303 |
113 |
4 |
10 |
0 |
0 |
| OW |
2 |
404 |
134 |
357 |
27 |
20 |
0 |
0 |
| VODI |
1 |
6 |
25 |
464 |
261 |
18 |
0 |
0 |
| ODI |
0 |
0 |
0 |
67 |
545 |
64 |
0 |
0 |
| CDI |
0 |
0 |
0 |
8 |
349 |
1172 |
75 |
0 |
| VCDI |
0 |
0 |
0 |
57 |
130 |
4343 |
11879 |
7682 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
28217 |
4272 |
294 |
189 |
18 |
14 |
0 |
0 |
| OW |
7 |
515 |
118 |
371 |
214 |
27 |
0 |
0 |
| VODI |
1 |
112 |
49 |
366 |
455 |
170 |
3 |
0 |
| ODI |
0 |
0 |
1 |
82 |
396 |
559 |
45 |
0 |
| CDI |
0 |
0 |
0 |
3 |
117 |
1151 |
389 |
0 |
| VCDI |
0 |
0 |
0 |
55 |
116 |
3706 |
11517 |
7682 |
|
Date: 2025-10-15:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
28153 |
4219 |
234 |
235 |
0 |
0 |
0 |
0 |
| OW |
3 |
301 |
123 |
579 |
58 |
3 |
0 |
0 |
| VODI |
0 |
25 |
43 |
427 |
299 |
28 |
0 |
0 |
| ODI |
0 |
0 |
0 |
175 |
423 |
148 |
10 |
0 |
| CDI |
0 |
0 |
0 |
50 |
467 |
776 |
176 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
84 |
2434 |
11407 |
10351 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
28121 |
4011 |
192 |
259 |
2 |
5 |
0 |
0 |
| OW |
34 |
417 |
136 |
582 |
131 |
37 |
4 |
0 |
| VODI |
1 |
115 |
66 |
468 |
438 |
121 |
27 |
0 |
| ODI |
0 |
2 |
6 |
122 |
499 |
446 |
80 |
0 |
| CDI |
0 |
0 |
0 |
35 |
246 |
1017 |
1029 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
15 |
1763 |
10453 |
10351 |
|
Date: 2025-10-17:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
27869 |
4180 |
174 |
249 |
15 |
0 |
0 |
0 |
| OW |
9 |
400 |
150 |
501 |
160 |
3 |
0 |
0 |
| VODI |
1 |
17 |
36 |
392 |
421 |
47 |
0 |
0 |
| ODI |
0 |
0 |
0 |
141 |
418 |
200 |
4 |
0 |
| CDI |
0 |
0 |
0 |
22 |
300 |
706 |
294 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
40 |
2050 |
11960 |
10472 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
27855 |
3981 |
182 |
297 |
108 |
24 |
0 |
0 |
| OW |
23 |
520 |
125 |
553 |
237 |
34 |
9 |
0 |
| VODI |
1 |
96 |
51 |
375 |
503 |
225 |
63 |
0 |
| ODI |
0 |
0 |
2 |
68 |
342 |
434 |
260 |
0 |
| CDI |
0 |
0 |
0 |
12 |
147 |
544 |
1411 |
8 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
1745 |
10515 |
10464 |
|
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