Validation of sea ice concentration - American sector
Reference date: 2025-07-17
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-07-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6545 |
5528 |
186 |
372 |
69 |
5 |
0 |
0 |
| OW |
0 |
557 |
158 |
483 |
136 |
5 |
5 |
0 |
| VODI |
0 |
45 |
47 |
498 |
2054 |
595 |
0 |
0 |
| ODI |
0 |
0 |
1 |
18 |
2703 |
2233 |
27 |
0 |
| CDI |
0 |
0 |
0 |
9 |
3478 |
16321 |
2389 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
499 |
880 |
0 |
|
|
Date: 2025-07-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6744 |
5739 |
221 |
433 |
73 |
1 |
0 |
0 |
| OW |
0 |
498 |
142 |
506 |
201 |
9 |
2 |
0 |
| VODI |
0 |
50 |
32 |
406 |
1817 |
423 |
28 |
0 |
| ODI |
0 |
2 |
1 |
13 |
1917 |
3466 |
336 |
0 |
| CDI |
0 |
0 |
0 |
10 |
3444 |
15792 |
2862 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
226 |
448 |
0 |
|
|
Date: 2025-07-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7179 |
5620 |
255 |
332 |
37 |
0 |
0 |
0 |
| OW |
0 |
508 |
166 |
645 |
188 |
0 |
0 |
0 |
| VODI |
0 |
31 |
26 |
655 |
2215 |
229 |
0 |
0 |
| ODI |
0 |
0 |
0 |
27 |
4474 |
1987 |
53 |
0 |
| CDI |
0 |
2 |
2 |
10 |
3620 |
14431 |
2235 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
356 |
558 |
0 |
|
|
Date: 2025-07-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7721 |
5401 |
205 |
321 |
18 |
0 |
0 |
0 |
| OW |
0 |
554 |
187 |
599 |
85 |
0 |
0 |
0 |
| VODI |
0 |
32 |
32 |
864 |
2663 |
267 |
0 |
0 |
| ODI |
0 |
0 |
0 |
30 |
4908 |
2088 |
14 |
0 |
| CDI |
0 |
0 |
2 |
11 |
2306 |
14242 |
2287 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
329 |
679 |
0 |
|
|
Date: 2025-07-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8297 |
5251 |
202 |
276 |
16 |
0 |
0 |
0 |
| OW |
0 |
548 |
207 |
650 |
109 |
2 |
0 |
0 |
| VODI |
0 |
35 |
35 |
861 |
2905 |
362 |
0 |
0 |
| ODI |
0 |
2 |
2 |
13 |
3273 |
3119 |
47 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1728 |
16143 |
630 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1106 |
23 |
0 |
|
|
Date: 2025-07-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
9617 |
4457 |
259 |
269 |
19 |
0 |
0 |
0 |
| OW |
2 |
565 |
220 |
676 |
172 |
7 |
0 |
0 |
| VODI |
0 |
50 |
40 |
1135 |
2136 |
226 |
7 |
0 |
| ODI |
0 |
5 |
0 |
24 |
4575 |
2233 |
85 |
0 |
| CDI |
0 |
0 |
0 |
2 |
2261 |
14189 |
1465 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
556 |
594 |
0 |
|
|
Date: 2025-07-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10248 |
4194 |
270 |
276 |
10 |
0 |
0 |
0 |
| OW |
0 |
504 |
234 |
686 |
298 |
3 |
0 |
0 |
| VODI |
0 |
41 |
53 |
1448 |
2799 |
164 |
9 |
0 |
| ODI |
0 |
0 |
0 |
85 |
5204 |
1330 |
11 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1974 |
13616 |
929 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
827 |
632 |
0 |
|
|
Date: 2025-07-25:
| Best estimate |
|
|
...observations not yet available
|
|
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