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 |
5135 |
202 |
229 |
24 |
0 |
0 |
0 |
| OW |
0 |
191 |
104 |
386 |
248 |
10 |
0 |
0 |
| VODI |
0 |
28 |
27 |
213 |
381 |
107 |
0 |
0 |
| ODI |
0 |
5 |
5 |
97 |
326 |
153 |
6 |
0 |
| CDI |
0 |
0 |
0 |
5 |
411 |
1239 |
240 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
54 |
4144 |
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 |
5085 |
232 |
271 |
28 |
0 |
0 |
0 |
| OW |
1 |
127 |
118 |
372 |
233 |
45 |
0 |
0 |
| VODI |
0 |
17 |
23 |
170 |
349 |
124 |
3 |
0 |
| ODI |
0 |
2 |
11 |
61 |
265 |
247 |
16 |
0 |
| CDI |
0 |
0 |
0 |
7 |
263 |
1502 |
247 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
20 |
3932 |
17162 |
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 |
5019 |
207 |
247 |
32 |
5 |
0 |
0 |
| OW |
2 |
92 |
76 |
314 |
225 |
17 |
0 |
0 |
| VODI |
0 |
15 |
22 |
125 |
327 |
135 |
9 |
0 |
| ODI |
0 |
0 |
3 |
44 |
259 |
345 |
51 |
0 |
| CDI |
0 |
0 |
0 |
5 |
114 |
1020 |
547 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
1918 |
15572 |
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 |
4896 |
196 |
310 |
36 |
0 |
0 |
0 |
| OW |
5 |
167 |
71 |
307 |
140 |
9 |
0 |
0 |
| VODI |
4 |
37 |
52 |
205 |
307 |
69 |
1 |
0 |
| ODI |
0 |
9 |
15 |
93 |
342 |
244 |
16 |
0 |
| CDI |
0 |
1 |
8 |
34 |
163 |
851 |
340 |
0 |
| VCDI |
0 |
0 |
1 |
10 |
45 |
1456 |
16239 |
5866 |
|
|
Date: 2025-10-17:
| Best estimate |
|
|
...observations not yet available
|
|
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