Validation of sea ice concentration - Asian sector
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 |
0 |
253 |
19 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
90 |
23 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
99 |
21 |
90 |
3 |
1 |
0 |
0 |
| ODI |
0 |
34 |
33 |
179 |
91 |
7 |
1 |
0 |
| CDI |
0 |
0 |
0 |
38 |
336 |
416 |
65 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
19 |
1053 |
6480 |
22716 |
|
|
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 |
0 |
266 |
38 |
14 |
1 |
0 |
0 |
0 |
| OW |
0 |
55 |
13 |
29 |
2 |
0 |
0 |
0 |
| VODI |
0 |
93 |
16 |
66 |
32 |
0 |
0 |
0 |
| ODI |
0 |
24 |
29 |
147 |
163 |
91 |
6 |
0 |
| CDI |
0 |
0 |
0 |
12 |
124 |
723 |
268 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
404 |
7704 |
21760 |
|
|
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 |
0 |
281 |
33 |
33 |
0 |
0 |
0 |
0 |
| OW |
0 |
51 |
12 |
32 |
0 |
0 |
0 |
0 |
| VODI |
0 |
82 |
27 |
64 |
28 |
1 |
0 |
0 |
| ODI |
0 |
6 |
15 |
142 |
222 |
47 |
2 |
0 |
| CDI |
0 |
0 |
0 |
4 |
156 |
736 |
315 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
644 |
7805 |
21344 |
|
|
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 |
0 |
268 |
27 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
41 |
4 |
25 |
1 |
0 |
0 |
0 |
| VODI |
0 |
72 |
35 |
51 |
16 |
6 |
0 |
0 |
| ODI |
0 |
2 |
13 |
99 |
165 |
83 |
10 |
0 |
| CDI |
0 |
0 |
0 |
6 |
131 |
573 |
249 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
548 |
9881 |
19747 |
|
|
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 |
0 |
179 |
22 |
21 |
0 |
0 |
0 |
0 |
| OW |
0 |
27 |
22 |
26 |
0 |
0 |
0 |
0 |
| VODI |
0 |
19 |
27 |
128 |
47 |
5 |
0 |
0 |
| ODI |
0 |
0 |
0 |
44 |
165 |
97 |
11 |
0 |
| CDI |
0 |
0 |
0 |
0 |
54 |
570 |
259 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
365 |
10009 |
19984 |
|
|
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 |
0 |
118 |
38 |
34 |
0 |
0 |
0 |
0 |
| OW |
0 |
26 |
16 |
36 |
2 |
0 |
0 |
0 |
| VODI |
0 |
2 |
14 |
111 |
59 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
40 |
160 |
95 |
2 |
0 |
| CDI |
0 |
0 |
0 |
0 |
45 |
701 |
157 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
515 |
8216 |
21690 |
|
|
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 |
0 |
143 |
32 |
31 |
0 |
0 |
0 |
0 |
| OW |
0 |
16 |
24 |
25 |
3 |
0 |
0 |
0 |
| VODI |
0 |
8 |
11 |
88 |
64 |
4 |
0 |
0 |
| ODI |
0 |
0 |
0 |
38 |
130 |
109 |
9 |
0 |
| CDI |
0 |
0 |
0 |
6 |
125 |
721 |
252 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
61 |
624 |
8968 |
20589 |
|
|
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 |
0 |
208 |
29 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
50 |
16 |
12 |
0 |
0 |
0 |
0 |
| VODI |
0 |
43 |
33 |
62 |
11 |
0 |
0 |
0 |
| ODI |
0 |
0 |
3 |
91 |
158 |
30 |
2 |
0 |
| CDI |
0 |
0 |
0 |
7 |
493 |
861 |
120 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
56 |
687 |
9468 |
19621 |
|
|
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