Validation of sea ice concentration - Asian sector
Reference date: 2025-03-27
Model: GLO MFC - NEMO
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-03-21:
| 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 |
202 |
24 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
33 |
7 |
30 |
0 |
0 |
0 |
0 |
| VODI |
0 |
8 |
9 |
62 |
46 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
21 |
69 |
88 |
19 |
0 |
| CDI |
0 |
0 |
0 |
32 |
95 |
254 |
249 |
1 |
| VCDI |
0 |
0 |
0 |
4 |
13 |
549 |
9789 |
20452 |
|
|
Date: 2025-03-23:
| 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 |
187 |
22 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
54 |
8 |
26 |
0 |
0 |
0 |
0 |
| VODI |
0 |
10 |
13 |
56 |
40 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
16 |
75 |
54 |
29 |
6 |
| CDI |
0 |
0 |
0 |
48 |
83 |
162 |
166 |
32 |
| VCDI |
0 |
0 |
0 |
1 |
1 |
231 |
8136 |
22608 |
|
|
Date: 2025-03-25:
| 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 |
261 |
17 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
86 |
10 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
57 |
30 |
45 |
4 |
1 |
0 |
0 |
| ODI |
0 |
7 |
7 |
112 |
34 |
15 |
1 |
0 |
| CDI |
0 |
1 |
2 |
66 |
184 |
154 |
64 |
6 |
| VCDI |
0 |
0 |
0 |
0 |
23 |
342 |
6202 |
24340 |
|
|
Date: 2025-03-27:
| 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 |
357 |
4 |
1 |
1 |
0 |
0 |
0 |
| OW |
0 |
95 |
5 |
3 |
4 |
0 |
0 |
0 |
| VODI |
0 |
116 |
24 |
29 |
12 |
4 |
0 |
0 |
| ODI |
0 |
99 |
43 |
88 |
60 |
12 |
0 |
0 |
| CDI |
0 |
15 |
10 |
108 |
248 |
252 |
36 |
0 |
| VCDI |
0 |
0 |
0 |
11 |
93 |
840 |
6933 |
22579 |
|
|
Date: 2025-03-29:
| 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 |
425 |
0 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
101 |
6 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
139 |
23 |
44 |
7 |
0 |
0 |
0 |
| ODI |
0 |
119 |
43 |
128 |
66 |
16 |
0 |
0 |
| CDI |
0 |
11 |
17 |
109 |
344 |
466 |
41 |
0 |
| VCDI |
0 |
1 |
1 |
14 |
56 |
1274 |
6733 |
21876 |
|
|
Date: 2025-03-31:
| 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 |
352 |
9 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
95 |
10 |
14 |
0 |
0 |
0 |
0 |
| VODI |
0 |
157 |
21 |
48 |
17 |
3 |
0 |
0 |
| ODI |
0 |
48 |
42 |
187 |
133 |
25 |
3 |
0 |
| CDI |
0 |
0 |
0 |
26 |
302 |
790 |
274 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
1465 |
8606 |
19432 |
|
|
Date: 2025-04-02:
| 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 |
311 |
14 |
16 |
1 |
0 |
0 |
0 |
| OW |
0 |
79 |
4 |
19 |
10 |
4 |
0 |
0 |
| VODI |
0 |
128 |
26 |
63 |
36 |
50 |
1 |
0 |
| ODI |
0 |
16 |
19 |
102 |
147 |
171 |
13 |
0 |
| CDI |
0 |
0 |
0 |
1 |
88 |
422 |
434 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
311 |
7194 |
22398 |
|
|
Date: 2025-04-04:
| 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 |
288 |
18 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
87 |
9 |
17 |
0 |
0 |
0 |
0 |
| VODI |
0 |
145 |
19 |
60 |
19 |
0 |
0 |
0 |
| ODI |
0 |
32 |
26 |
138 |
172 |
56 |
0 |
0 |
| CDI |
0 |
0 |
4 |
41 |
241 |
412 |
231 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
23 |
429 |
6590 |
23012 |
|
|
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