Validation of sea ice concentration - Full domain
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 |
94733 |
21657 |
814 |
1165 |
164 |
5 |
0 |
0 |
| OW |
0 |
1200 |
432 |
1410 |
521 |
13 |
5 |
0 |
| VODI |
0 |
519 |
275 |
1861 |
3903 |
848 |
38 |
0 |
| ODI |
0 |
288 |
156 |
740 |
6191 |
3728 |
128 |
0 |
| CDI |
0 |
13 |
20 |
69 |
6198 |
34319 |
3256 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
762 |
1579 |
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 |
95516 |
21967 |
1014 |
1579 |
187 |
1 |
0 |
0 |
| OW |
0 |
1196 |
486 |
1625 |
595 |
11 |
2 |
0 |
| VODI |
0 |
420 |
226 |
1673 |
4100 |
663 |
71 |
0 |
| ODI |
0 |
269 |
104 |
594 |
5517 |
5007 |
399 |
0 |
| CDI |
0 |
2 |
1 |
34 |
4869 |
34858 |
3170 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
392 |
461 |
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 |
96745 |
21614 |
1174 |
1670 |
189 |
0 |
0 |
0 |
| OW |
0 |
1186 |
603 |
1886 |
694 |
7 |
0 |
0 |
| VODI |
0 |
271 |
140 |
1826 |
4301 |
610 |
4 |
0 |
| ODI |
0 |
161 |
78 |
492 |
8013 |
4175 |
90 |
0 |
| CDI |
0 |
2 |
6 |
25 |
4551 |
32781 |
2727 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
419 |
564 |
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 |
97858 |
21458 |
1286 |
1848 |
155 |
0 |
0 |
0 |
| OW |
0 |
1384 |
589 |
2008 |
672 |
4 |
0 |
0 |
| VODI |
0 |
267 |
171 |
1932 |
4820 |
494 |
7 |
0 |
| ODI |
0 |
60 |
63 |
384 |
8655 |
4456 |
51 |
0 |
| CDI |
0 |
0 |
3 |
23 |
3138 |
31117 |
3049 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
381 |
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 |
98616 |
22380 |
1372 |
1717 |
129 |
0 |
0 |
0 |
| OW |
0 |
1487 |
645 |
2242 |
799 |
3 |
0 |
0 |
| VODI |
0 |
147 |
151 |
1799 |
5556 |
537 |
6 |
0 |
| ODI |
0 |
17 |
26 |
203 |
7155 |
5624 |
107 |
0 |
| CDI |
0 |
0 |
0 |
5 |
3357 |
29681 |
2062 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
1161 |
30 |
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 |
101082 |
21621 |
1425 |
1863 |
161 |
0 |
0 |
0 |
| OW |
2 |
1433 |
639 |
2153 |
928 |
10 |
0 |
0 |
| VODI |
0 |
91 |
122 |
1913 |
5066 |
522 |
7 |
0 |
| ODI |
0 |
8 |
4 |
160 |
7871 |
4796 |
141 |
0 |
| CDI |
0 |
0 |
0 |
0 |
3469 |
27672 |
2669 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
602 |
584 |
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 |
103163 |
20938 |
1430 |
1932 |
155 |
0 |
0 |
0 |
| OW |
0 |
1222 |
585 |
2120 |
938 |
16 |
0 |
0 |
| VODI |
0 |
70 |
107 |
2318 |
5402 |
476 |
14 |
0 |
| ODI |
0 |
0 |
0 |
176 |
9547 |
3192 |
116 |
0 |
| CDI |
0 |
0 |
0 |
0 |
5364 |
25046 |
1405 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
719 |
563 |
0 |
|
|
Date: 2025-07-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
103961 |
21974 |
1398 |
1900 |
170 |
0 |
0 |
0 |
| OW |
0 |
1055 |
532 |
2075 |
893 |
10 |
0 |
0 |
| VODI |
0 |
71 |
97 |
2132 |
6170 |
857 |
6 |
0 |
| ODI |
0 |
0 |
3 |
111 |
8548 |
5898 |
95 |
0 |
| CDI |
0 |
0 |
0 |
0 |
3642 |
24632 |
247 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
412 |
125 |
0 |
|
|
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