Validation of sea ice concentration - Full domain
Reference date: 2025-09-11
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-09-05:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
123809 |
15079 |
658 |
602 |
34 |
0 |
0 |
0 |
| OW |
151 |
5822 |
794 |
1367 |
275 |
1 |
0 |
0 |
| VODI |
0 |
86 |
274 |
2852 |
1279 |
40 |
0 |
0 |
| ODI |
0 |
0 |
1 |
1314 |
10914 |
4657 |
12 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1202 |
11907 |
2322 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
599 |
943 |
0 |
|
|
Date: 2025-09-07:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
123984 |
15059 |
635 |
587 |
25 |
1 |
0 |
0 |
| OW |
221 |
5666 |
817 |
1293 |
247 |
8 |
0 |
0 |
| VODI |
0 |
109 |
235 |
2904 |
1206 |
48 |
1 |
0 |
| ODI |
0 |
1 |
4 |
1378 |
9403 |
3323 |
21 |
0 |
| CDI |
0 |
0 |
0 |
7 |
1840 |
14110 |
2530 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
472 |
864 |
0 |
|
|
Date: 2025-09-09:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
123908 |
15096 |
653 |
599 |
47 |
0 |
0 |
0 |
| OW |
182 |
5548 |
843 |
1465 |
229 |
11 |
0 |
0 |
| VODI |
0 |
73 |
142 |
2742 |
1153 |
63 |
0 |
0 |
| ODI |
0 |
0 |
2 |
1538 |
6017 |
2161 |
22 |
0 |
| CDI |
0 |
0 |
0 |
18 |
3979 |
15451 |
2545 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
1008 |
1505 |
0 |
|
|
Date: 2025-09-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
124152 |
14942 |
623 |
559 |
49 |
1 |
0 |
0 |
| OW |
0 |
5488 |
671 |
1549 |
334 |
17 |
0 |
0 |
| VODI |
0 |
147 |
175 |
2451 |
1256 |
142 |
5 |
0 |
| ODI |
0 |
0 |
5 |
1382 |
4412 |
1327 |
34 |
0 |
| CDI |
0 |
0 |
0 |
17 |
3176 |
14414 |
2480 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
4006 |
3183 |
0 |
|
|
Date: 2025-09-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
123865 |
15305 |
575 |
542 |
30 |
2 |
0 |
0 |
| OW |
162 |
5192 |
581 |
1485 |
284 |
27 |
0 |
0 |
| VODI |
0 |
129 |
137 |
2318 |
1389 |
123 |
2 |
0 |
| ODI |
0 |
1 |
1 |
1040 |
4109 |
1225 |
73 |
0 |
| CDI |
0 |
0 |
0 |
8 |
2457 |
12784 |
1652 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
5092 |
6410 |
0 |
|
|
Date: 2025-09-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
125363 |
14108 |
554 |
573 |
73 |
3 |
0 |
0 |
| OW |
803 |
4507 |
585 |
1306 |
327 |
23 |
0 |
0 |
| VODI |
8 |
85 |
132 |
2080 |
1156 |
223 |
7 |
0 |
| ODI |
0 |
0 |
3 |
603 |
3551 |
1407 |
107 |
0 |
| CDI |
0 |
0 |
0 |
2 |
1415 |
12016 |
1656 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
4995 |
9320 |
4 |
|
|
Date: 2025-09-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
123054 |
16730 |
558 |
532 |
102 |
26 |
0 |
0 |
| OW |
611 |
4381 |
663 |
1497 |
292 |
16 |
0 |
0 |
| VODI |
8 |
62 |
125 |
1741 |
1222 |
127 |
4 |
0 |
| ODI |
0 |
0 |
3 |
524 |
3461 |
1125 |
38 |
0 |
| CDI |
0 |
0 |
0 |
30 |
1181 |
10234 |
1007 |
1 |
| VCDI |
0 |
0 |
0 |
1 |
7 |
5209 |
12131 |
299 |
|
|
Date: 2025-09-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
121507 |
18715 |
569 |
471 |
13 |
0 |
0 |
0 |
| OW |
593 |
4170 |
608 |
1272 |
229 |
5 |
0 |
0 |
| VODI |
4 |
119 |
145 |
1355 |
1215 |
182 |
0 |
0 |
| ODI |
0 |
13 |
15 |
302 |
1925 |
2301 |
148 |
0 |
| CDI |
0 |
2 |
1 |
10 |
731 |
7629 |
2186 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
7148 |
11594 |
1819 |
|
|
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