Validation of sea ice concentration - American sector
Reference date: 2025-10-02
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
16154 |
5178 |
131 |
80 |
15 |
0 |
0 |
0 |
| OW |
520 |
3182 |
231 |
495 |
198 |
10 |
0 |
0 |
| VODI |
0 |
73 |
60 |
394 |
478 |
273 |
10 |
0 |
| ODI |
0 |
5 |
0 |
82 |
506 |
763 |
34 |
0 |
| CDI |
0 |
0 |
0 |
0 |
148 |
1903 |
978 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
829 |
7783 |
5328 |
|
|
Date: 2025-09-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15497 |
5735 |
180 |
126 |
11 |
0 |
0 |
0 |
| OW |
23 |
2672 |
330 |
800 |
154 |
5 |
0 |
0 |
| VODI |
0 |
70 |
53 |
360 |
507 |
134 |
12 |
0 |
| ODI |
0 |
0 |
1 |
57 |
478 |
446 |
81 |
0 |
| CDI |
0 |
0 |
0 |
1 |
181 |
1488 |
527 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
972 |
10452 |
4489 |
|
|
Date: 2025-09-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15255 |
5908 |
235 |
197 |
5 |
0 |
0 |
0 |
| OW |
0 |
1694 |
345 |
686 |
330 |
0 |
0 |
0 |
| VODI |
0 |
55 |
44 |
379 |
548 |
57 |
1 |
0 |
| ODI |
0 |
6 |
6 |
130 |
535 |
352 |
20 |
0 |
| CDI |
0 |
0 |
1 |
11 |
370 |
1331 |
143 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
1573 |
11458 |
4149 |
|
|
Date: 2025-10-02:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14805 |
5846 |
289 |
506 |
56 |
0 |
0 |
0 |
| OW |
0 |
1115 |
249 |
813 |
296 |
16 |
0 |
0 |
| VODI |
0 |
28 |
31 |
251 |
437 |
177 |
2 |
0 |
| ODI |
0 |
11 |
8 |
111 |
555 |
227 |
20 |
0 |
| CDI |
0 |
0 |
3 |
8 |
362 |
1548 |
214 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
77 |
1809 |
8406 |
7564 |
|
|
Date: 2025-10-04:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14242 |
5262 |
326 |
739 |
139 |
0 |
0 |
0 |
| OW |
0 |
407 |
169 |
820 |
521 |
52 |
0 |
0 |
| VODI |
0 |
93 |
44 |
363 |
456 |
318 |
7 |
0 |
| ODI |
0 |
8 |
8 |
65 |
342 |
347 |
102 |
0 |
| CDI |
0 |
0 |
0 |
3 |
101 |
1090 |
362 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
28 |
2806 |
13769 |
2853 |
|
|
Date: 2025-10-06:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14282 |
5085 |
258 |
434 |
19 |
0 |
0 |
0 |
| OW |
0 |
177 |
105 |
740 |
297 |
4 |
0 |
0 |
| VODI |
0 |
57 |
42 |
250 |
578 |
264 |
0 |
0 |
| ODI |
0 |
9 |
6 |
129 |
477 |
605 |
14 |
0 |
| CDI |
0 |
0 |
6 |
19 |
189 |
1072 |
298 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
32 |
3108 |
13135 |
4151 |
|
|
Date: 2025-10-08:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14330 |
5065 |
225 |
259 |
38 |
0 |
0 |
0 |
| OW |
0 |
234 |
110 |
464 |
304 |
8 |
0 |
0 |
| VODI |
0 |
30 |
37 |
254 |
340 |
48 |
0 |
0 |
| ODI |
0 |
7 |
8 |
71 |
515 |
411 |
6 |
0 |
| CDI |
0 |
0 |
0 |
7 |
212 |
1313 |
295 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
2248 |
12089 |
6903 |
|
|
Date: 2025-10-10:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13757 |
5216 |
235 |
267 |
27 |
0 |
0 |
0 |
| OW |
0 |
165 |
100 |
408 |
272 |
20 |
0 |
0 |
| VODI |
0 |
29 |
31 |
185 |
346 |
93 |
9 |
0 |
| ODI |
0 |
1 |
5 |
47 |
274 |
250 |
48 |
0 |
| CDI |
0 |
0 |
0 |
3 |
276 |
1631 |
236 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
57 |
4893 |
15348 |
1613 |
|
|
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