Validation of sea ice concentration - Full domain
Reference date: 2025-08-07
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-08-01:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
108583 |
21233 |
1285 |
1442 |
153 |
0 |
0 |
0 |
| OW |
0 |
885 |
692 |
2039 |
365 |
7 |
0 |
0 |
| VODI |
0 |
93 |
217 |
3482 |
5402 |
866 |
2 |
0 |
| ODI |
0 |
0 |
0 |
269 |
8982 |
12656 |
306 |
0 |
| CDI |
0 |
0 |
0 |
0 |
524 |
11771 |
4656 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
201 |
893 |
0 |
|
|
Date: 2025-08-03:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
109523 |
21124 |
1160 |
1284 |
130 |
0 |
0 |
0 |
| OW |
0 |
1106 |
918 |
2115 |
336 |
0 |
0 |
0 |
| VODI |
0 |
79 |
174 |
4208 |
4206 |
265 |
8 |
0 |
| ODI |
0 |
0 |
1 |
214 |
9016 |
10308 |
228 |
0 |
| CDI |
0 |
0 |
0 |
2 |
560 |
12275 |
6050 |
209 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
95 |
1199 |
214 |
|
|
Date: 2025-08-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
110978 |
20513 |
1103 |
1255 |
103 |
0 |
0 |
0 |
| OW |
0 |
1205 |
787 |
2061 |
358 |
5 |
0 |
0 |
| VODI |
0 |
86 |
140 |
3404 |
3802 |
322 |
0 |
0 |
| ODI |
0 |
0 |
0 |
361 |
8664 |
7178 |
231 |
0 |
| CDI |
0 |
0 |
0 |
5 |
1825 |
12723 |
5945 |
117 |
| VCDI |
0 |
0 |
0 |
0 |
93 |
812 |
2332 |
599 |
|
|
Date: 2025-08-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
112429 |
19778 |
1027 |
1198 |
126 |
0 |
0 |
0 |
| OW |
0 |
1284 |
740 |
1728 |
336 |
11 |
0 |
0 |
| VODI |
0 |
121 |
210 |
3621 |
3377 |
385 |
4 |
0 |
| ODI |
0 |
2 |
9 |
485 |
8564 |
6292 |
380 |
0 |
| CDI |
0 |
0 |
0 |
3 |
2166 |
12148 |
5408 |
259 |
| VCDI |
0 |
0 |
0 |
0 |
98 |
1417 |
2515 |
886 |
|
|
Date: 2025-08-09:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
112733 |
20300 |
1011 |
1049 |
55 |
0 |
0 |
0 |
| OW |
0 |
1584 |
739 |
1472 |
250 |
7 |
0 |
0 |
| VODI |
0 |
238 |
378 |
4006 |
3361 |
135 |
0 |
0 |
| ODI |
0 |
0 |
8 |
539 |
10446 |
8717 |
824 |
5 |
| CDI |
0 |
0 |
0 |
0 |
733 |
9589 |
4791 |
76 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
329 |
2675 |
954 |
|
|
Date: 2025-08-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
113764 |
19936 |
997 |
866 |
69 |
0 |
0 |
0 |
| OW |
0 |
1847 |
879 |
1822 |
226 |
10 |
0 |
0 |
| VODI |
0 |
97 |
221 |
4025 |
2534 |
152 |
4 |
0 |
| ODI |
0 |
0 |
0 |
450 |
12097 |
9832 |
466 |
0 |
| CDI |
0 |
0 |
0 |
0 |
486 |
9214 |
2776 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
955 |
3241 |
37 |
|
|
Date: 2025-08-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
115602 |
18687 |
938 |
863 |
47 |
0 |
0 |
0 |
| OW |
1 |
2469 |
944 |
1512 |
223 |
5 |
0 |
0 |
| VODI |
0 |
115 |
263 |
4082 |
1686 |
102 |
1 |
0 |
| ODI |
0 |
0 |
0 |
629 |
13580 |
8367 |
109 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1225 |
7738 |
3361 |
57 |
| VCDI |
0 |
0 |
0 |
0 |
15 |
866 |
3011 |
509 |
|
|
Date: 2025-08-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
116187 |
18755 |
801 |
626 |
39 |
0 |
0 |
0 |
| OW |
0 |
2966 |
923 |
1502 |
164 |
5 |
0 |
0 |
| VODI |
0 |
144 |
284 |
4295 |
1952 |
140 |
1 |
0 |
| ODI |
0 |
0 |
0 |
615 |
13434 |
10227 |
429 |
10 |
| CDI |
0 |
0 |
0 |
1 |
401 |
6425 |
2916 |
118 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
534 |
2925 |
185 |
|
|
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