Validation of sea ice concentration - American sector
Reference date: 2025-10-09
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-10-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14420 |
5691 |
423 |
571 |
48 |
0 |
0 |
0 |
| OW |
0 |
840 |
242 |
750 |
439 |
10 |
0 |
0 |
| VODI |
0 |
46 |
46 |
288 |
519 |
187 |
15 |
0 |
| ODI |
0 |
7 |
6 |
77 |
325 |
358 |
53 |
0 |
| CDI |
0 |
0 |
2 |
5 |
189 |
1467 |
377 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
1458 |
9149 |
7816 |
|
|
Date: 2025-10-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14164 |
4970 |
269 |
612 |
221 |
0 |
0 |
0 |
| OW |
0 |
179 |
96 |
415 |
966 |
63 |
0 |
0 |
| VODI |
0 |
34 |
34 |
241 |
543 |
327 |
0 |
0 |
| ODI |
0 |
10 |
11 |
122 |
561 |
361 |
41 |
0 |
| CDI |
0 |
0 |
0 |
17 |
205 |
952 |
267 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
4259 |
15396 |
495 |
|
|
Date: 2025-10-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14361 |
4995 |
227 |
408 |
36 |
0 |
0 |
0 |
| OW |
0 |
201 |
98 |
532 |
370 |
8 |
0 |
0 |
| VODI |
0 |
44 |
28 |
195 |
461 |
115 |
0 |
0 |
| ODI |
0 |
14 |
10 |
66 |
488 |
640 |
7 |
0 |
| CDI |
0 |
0 |
0 |
9 |
170 |
1086 |
520 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
1920 |
13417 |
5414 |
|
|
Date: 2025-10-09:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14234 |
5137 |
202 |
231 |
28 |
0 |
0 |
0 |
| OW |
0 |
189 |
104 |
383 |
244 |
10 |
0 |
0 |
| VODI |
0 |
28 |
27 |
214 |
379 |
107 |
0 |
0 |
| ODI |
0 |
5 |
5 |
97 |
326 |
153 |
6 |
0 |
| CDI |
0 |
0 |
0 |
5 |
413 |
1236 |
240 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
54 |
4147 |
14711 |
2927 |
|
|
Date: 2025-10-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13623 |
5082 |
234 |
292 |
40 |
0 |
0 |
0 |
| OW |
1 |
130 |
115 |
347 |
222 |
46 |
0 |
0 |
| VODI |
0 |
17 |
24 |
172 |
347 |
124 |
3 |
0 |
| ODI |
0 |
2 |
11 |
63 |
265 |
245 |
16 |
0 |
| CDI |
0 |
0 |
0 |
7 |
264 |
1505 |
248 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
20 |
3930 |
17161 |
1286 |
|
|
Date: 2025-10-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13427 |
5023 |
214 |
272 |
47 |
5 |
0 |
0 |
| OW |
2 |
88 |
68 |
282 |
218 |
18 |
0 |
0 |
| VODI |
0 |
15 |
23 |
131 |
318 |
139 |
9 |
0 |
| ODI |
0 |
0 |
3 |
47 |
261 |
344 |
53 |
0 |
| CDI |
0 |
0 |
0 |
3 |
114 |
1013 |
541 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
1921 |
15576 |
5663 |
|
|
Date: 2025-10-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13297 |
4963 |
207 |
317 |
31 |
0 |
0 |
0 |
| OW |
6 |
114 |
73 |
307 |
133 |
7 |
0 |
0 |
| VODI |
3 |
25 |
44 |
207 |
314 |
61 |
1 |
0 |
| ODI |
0 |
7 |
14 |
100 |
369 |
245 |
14 |
0 |
| CDI |
0 |
1 |
5 |
25 |
164 |
939 |
333 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
22 |
1377 |
16248 |
5866 |
|
|
Date: 2025-10-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12872 |
4990 |
265 |
320 |
44 |
0 |
0 |
0 |
| OW |
6 |
88 |
66 |
259 |
233 |
25 |
0 |
0 |
| VODI |
1 |
27 |
39 |
212 |
277 |
146 |
0 |
0 |
| ODI |
0 |
0 |
9 |
98 |
299 |
322 |
42 |
0 |
| CDI |
0 |
0 |
0 |
16 |
126 |
707 |
329 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
1751 |
15089 |
7181 |
|
|
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