Validation of sea ice concentration - Asian sector
Reference date: 2025-05-15
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-05-09:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
28 |
452 |
18 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
35 |
4 |
42 |
0 |
0 |
0 |
0 |
| VODI |
0 |
87 |
11 |
206 |
74 |
5 |
20 |
0 |
| ODI |
0 |
111 |
61 |
718 |
888 |
84 |
54 |
0 |
| CDI |
0 |
0 |
0 |
67 |
1117 |
2929 |
689 |
28 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
819 |
8327 |
15193 |
|
|
Date: 2025-05-11:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
27 |
421 |
18 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
43 |
13 |
45 |
0 |
1 |
0 |
0 |
| VODI |
0 |
115 |
66 |
233 |
52 |
9 |
39 |
0 |
| ODI |
0 |
211 |
158 |
663 |
1014 |
143 |
61 |
0 |
| CDI |
0 |
0 |
0 |
73 |
747 |
2958 |
1094 |
40 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
407 |
8137 |
15274 |
|
|
Date: 2025-05-13:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
48 |
455 |
27 |
25 |
0 |
0 |
0 |
0 |
| OW |
0 |
55 |
11 |
52 |
5 |
0 |
0 |
0 |
| VODI |
0 |
164 |
69 |
250 |
85 |
10 |
34 |
0 |
| ODI |
0 |
212 |
115 |
767 |
1120 |
249 |
80 |
4 |
| CDI |
0 |
0 |
0 |
41 |
607 |
3148 |
939 |
69 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
1513 |
8512 |
13410 |
|
|
Date: 2025-05-15:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
5 |
573 |
28 |
35 |
0 |
0 |
0 |
0 |
| OW |
0 |
56 |
15 |
69 |
0 |
0 |
0 |
0 |
| VODI |
0 |
172 |
67 |
299 |
74 |
8 |
17 |
0 |
| ODI |
0 |
195 |
171 |
817 |
1220 |
211 |
49 |
9 |
| CDI |
0 |
0 |
3 |
59 |
646 |
3155 |
1021 |
69 |
| VCDI |
0 |
0 |
0 |
0 |
5 |
1069 |
12228 |
9737 |
|
|
Date: 2025-05-17:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
11 |
649 |
35 |
49 |
0 |
0 |
0 |
0 |
| OW |
0 |
75 |
17 |
54 |
2 |
0 |
0 |
0 |
| VODI |
0 |
268 |
76 |
247 |
58 |
2 |
0 |
0 |
| ODI |
0 |
271 |
192 |
920 |
1088 |
150 |
71 |
7 |
| CDI |
0 |
4 |
2 |
88 |
739 |
3315 |
962 |
72 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
684 |
9458 |
12514 |
|
|
Date: 2025-05-19:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2 |
621 |
28 |
70 |
0 |
0 |
0 |
0 |
| OW |
0 |
86 |
10 |
24 |
2 |
0 |
0 |
0 |
| VODI |
0 |
274 |
116 |
450 |
47 |
1 |
4 |
0 |
| ODI |
0 |
299 |
163 |
884 |
1109 |
210 |
43 |
10 |
| CDI |
0 |
0 |
1 |
77 |
768 |
3967 |
922 |
87 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
958 |
11074 |
9774 |
|
|
Date: 2025-05-21:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
21 |
610 |
38 |
56 |
0 |
0 |
0 |
0 |
| OW |
0 |
102 |
30 |
37 |
2 |
0 |
0 |
0 |
| VODI |
0 |
316 |
154 |
542 |
77 |
3 |
2 |
0 |
| ODI |
0 |
334 |
123 |
752 |
1285 |
274 |
81 |
26 |
| CDI |
0 |
0 |
0 |
56 |
822 |
4069 |
1150 |
98 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
2112 |
11312 |
7595 |
|
|
Date: 2025-05-23:
| Best estimate |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
624 |
38 |
59 |
0 |
0 |
0 |
0 |
| OW |
0 |
131 |
27 |
43 |
5 |
0 |
0 |
0 |
| VODI |
0 |
361 |
183 |
535 |
45 |
9 |
1 |
0 |
| ODI |
0 |
308 |
96 |
746 |
1547 |
344 |
35 |
0 |
| CDI |
0 |
0 |
0 |
38 |
768 |
4108 |
2074 |
248 |
| VCDI |
0 |
0 |
0 |
0 |
2 |
1447 |
11121 |
7139 |
|
|
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