Validation of sea ice concentration - Full domain
Reference date: 2025-04-17
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-04-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66257 |
16035 |
451 |
377 |
0 |
0 |
0 |
0 |
| OW |
0 |
400 |
196 |
515 |
65 |
1 |
0 |
0 |
| VODI |
0 |
302 |
222 |
1068 |
329 |
24 |
0 |
0 |
| ODI |
0 |
51 |
59 |
878 |
1699 |
210 |
11 |
0 |
| CDI |
0 |
0 |
0 |
178 |
2132 |
4553 |
782 |
1 |
| VCDI |
0 |
0 |
0 |
66 |
214 |
4118 |
25491 |
60356 |
|
|
Date: 2025-04-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
65716 |
16460 |
534 |
448 |
11 |
0 |
0 |
0 |
| OW |
0 |
309 |
146 |
560 |
67 |
0 |
0 |
0 |
| VODI |
0 |
254 |
215 |
1263 |
407 |
22 |
0 |
0 |
| ODI |
0 |
26 |
34 |
709 |
2334 |
607 |
47 |
0 |
| CDI |
0 |
0 |
0 |
180 |
1243 |
4697 |
2149 |
3 |
| VCDI |
0 |
0 |
0 |
50 |
72 |
2351 |
26822 |
59305 |
|
|
Date: 2025-04-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66428 |
16249 |
411 |
383 |
37 |
0 |
0 |
0 |
| OW |
0 |
335 |
162 |
500 |
65 |
0 |
0 |
0 |
| VODI |
0 |
241 |
236 |
1228 |
563 |
15 |
0 |
0 |
| ODI |
0 |
6 |
25 |
682 |
2303 |
699 |
47 |
0 |
| CDI |
0 |
0 |
0 |
79 |
1036 |
4822 |
2115 |
5 |
| VCDI |
0 |
0 |
0 |
23 |
231 |
2890 |
25770 |
59455 |
|
|
Date: 2025-04-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67159 |
15791 |
428 |
386 |
28 |
0 |
0 |
0 |
| OW |
0 |
398 |
134 |
471 |
98 |
0 |
0 |
0 |
| VODI |
0 |
337 |
286 |
951 |
569 |
47 |
0 |
0 |
| ODI |
0 |
2 |
22 |
644 |
1875 |
716 |
23 |
0 |
| CDI |
0 |
1 |
1 |
42 |
1134 |
4678 |
1853 |
11 |
| VCDI |
0 |
0 |
0 |
0 |
144 |
2983 |
28632 |
57197 |
|
|
Date: 2025-04-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66288 |
16315 |
537 |
546 |
32 |
0 |
0 |
0 |
| OW |
0 |
356 |
143 |
601 |
71 |
0 |
0 |
0 |
| VODI |
0 |
406 |
184 |
973 |
658 |
41 |
0 |
0 |
| ODI |
0 |
22 |
74 |
639 |
1764 |
703 |
33 |
0 |
| CDI |
0 |
0 |
0 |
69 |
1192 |
4041 |
1680 |
6 |
| VCDI |
0 |
0 |
0 |
7 |
280 |
2819 |
31086 |
55475 |
|
|
Date: 2025-04-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
66524 |
16298 |
558 |
625 |
38 |
0 |
0 |
0 |
| OW |
0 |
269 |
147 |
670 |
75 |
0 |
0 |
0 |
| VODI |
0 |
272 |
145 |
877 |
731 |
18 |
0 |
0 |
| ODI |
0 |
22 |
65 |
611 |
1737 |
628 |
45 |
0 |
| CDI |
0 |
0 |
0 |
40 |
1007 |
4363 |
1692 |
73 |
| VCDI |
0 |
0 |
0 |
6 |
102 |
2630 |
29151 |
57622 |
|
|
Date: 2025-04-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67098 |
15745 |
604 |
838 |
14 |
0 |
0 |
0 |
| OW |
0 |
230 |
151 |
549 |
81 |
0 |
0 |
0 |
| VODI |
0 |
220 |
154 |
834 |
667 |
45 |
11 |
0 |
| ODI |
0 |
17 |
34 |
576 |
1746 |
870 |
186 |
0 |
| CDI |
0 |
0 |
0 |
40 |
885 |
3999 |
2498 |
74 |
| VCDI |
0 |
0 |
0 |
0 |
157 |
1734 |
28951 |
58033 |
|
|
Date: 2025-04-25:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
67521 |
15612 |
558 |
512 |
0 |
0 |
0 |
0 |
| OW |
0 |
311 |
144 |
515 |
53 |
0 |
0 |
0 |
| VODI |
0 |
305 |
201 |
1021 |
456 |
49 |
13 |
0 |
| ODI |
0 |
16 |
48 |
708 |
1803 |
554 |
165 |
0 |
| CDI |
0 |
0 |
0 |
36 |
1448 |
4920 |
1717 |
30 |
| VCDI |
0 |
0 |
0 |
0 |
143 |
2452 |
29607 |
56123 |
|
|
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