Validation of sea ice concentration - American sector
Reference date: 2025-08-28
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-22:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13280 |
4872 |
198 |
182 |
23 |
0 |
0 |
0 |
| OW |
3 |
4309 |
919 |
944 |
26 |
0 |
0 |
0 |
| VODI |
0 |
63 |
175 |
2277 |
678 |
6 |
0 |
0 |
| ODI |
0 |
1 |
3 |
422 |
5181 |
2635 |
94 |
0 |
| CDI |
0 |
0 |
0 |
0 |
201 |
4858 |
2083 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
849 |
1557 |
0 |
|
|
Date: 2025-08-24:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
13223 |
5067 |
206 |
185 |
16 |
0 |
0 |
0 |
| OW |
0 |
4893 |
830 |
898 |
33 |
0 |
0 |
0 |
| VODI |
0 |
35 |
136 |
2067 |
700 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
346 |
5135 |
2854 |
48 |
0 |
| CDI |
0 |
0 |
0 |
0 |
271 |
5393 |
2086 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
463 |
948 |
0 |
|
|
Date: 2025-08-26:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14117 |
4411 |
222 |
162 |
14 |
0 |
0 |
0 |
| OW |
0 |
5155 |
866 |
900 |
31 |
0 |
0 |
0 |
| VODI |
0 |
40 |
83 |
1813 |
617 |
4 |
0 |
0 |
| ODI |
0 |
0 |
0 |
315 |
5028 |
2025 |
119 |
0 |
| CDI |
0 |
0 |
0 |
0 |
468 |
5943 |
2160 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
547 |
797 |
0 |
|
|
Date: 2025-08-28:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14506 |
4039 |
182 |
268 |
43 |
0 |
0 |
0 |
| OW |
79 |
5309 |
636 |
1033 |
51 |
1 |
0 |
0 |
| VODI |
0 |
12 |
37 |
1550 |
691 |
27 |
0 |
0 |
| ODI |
0 |
0 |
0 |
398 |
3632 |
2723 |
31 |
0 |
| CDI |
0 |
0 |
0 |
0 |
230 |
7768 |
1135 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1072 |
387 |
0 |
|
|
Date: 2025-08-30:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14645 |
4197 |
212 |
206 |
34 |
0 |
0 |
0 |
| OW |
90 |
5001 |
561 |
1068 |
139 |
0 |
0 |
0 |
| VODI |
0 |
18 |
28 |
1159 |
836 |
11 |
0 |
0 |
| ODI |
0 |
0 |
0 |
286 |
4816 |
1229 |
15 |
0 |
| CDI |
0 |
0 |
0 |
3 |
702 |
8581 |
823 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
875 |
305 |
0 |
|
|
Date: 2025-09-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
14896 |
4239 |
183 |
120 |
23 |
1 |
0 |
0 |
| OW |
177 |
5154 |
584 |
838 |
46 |
4 |
0 |
0 |
| VODI |
0 |
18 |
60 |
1457 |
467 |
26 |
0 |
0 |
| ODI |
0 |
0 |
0 |
449 |
4779 |
1162 |
9 |
0 |
| CDI |
0 |
0 |
0 |
0 |
856 |
7680 |
1068 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
1077 |
461 |
0 |
|
|
Date: 2025-09-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
15286 |
4048 |
165 |
127 |
7 |
0 |
0 |
0 |
| OW |
135 |
5296 |
556 |
749 |
72 |
1 |
0 |
0 |
| VODI |
0 |
38 |
81 |
1476 |
366 |
18 |
0 |
0 |
| ODI |
0 |
0 |
0 |
731 |
4571 |
1063 |
10 |
0 |
| CDI |
0 |
0 |
0 |
0 |
677 |
7724 |
1194 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
1063 |
385 |
0 |
|
|
Date: 2025-09-05:
| Best estimate |
|
|
...observations not yet available
|
|
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