Validation of sea ice concentration - Asian sector
Bulletin date: 2025-02-13
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2025-02-07:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
43 |
415 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
184 |
1 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
137 |
3 |
15 |
4 |
0 |
0 |
0 |
| ODI |
0 |
93 |
11 |
19 |
38 |
5 |
0 |
0 |
| CDI |
0 |
95 |
41 |
107 |
76 |
120 |
33 |
0 |
| VCDI |
0 |
28 |
16 |
145 |
266 |
1395 |
11028 |
17763 |
|
...date precedes bulletin
|
Date: 2025-02-09:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
34 |
351 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
147 |
9 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
211 |
16 |
22 |
1 |
0 |
0 |
0 |
| ODI |
0 |
150 |
41 |
73 |
20 |
11 |
0 |
0 |
| CDI |
0 |
90 |
42 |
160 |
236 |
139 |
124 |
5 |
| VCDI |
0 |
73 |
22 |
99 |
531 |
1476 |
11660 |
16339 |
|
...date precedes bulletin
|
Date: 2025-02-11:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2 |
313 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
210 |
8 |
10 |
0 |
0 |
0 |
0 |
| VODI |
0 |
161 |
38 |
68 |
4 |
0 |
0 |
0 |
| ODI |
0 |
53 |
35 |
108 |
88 |
12 |
0 |
0 |
| CDI |
0 |
32 |
18 |
134 |
348 |
116 |
94 |
0 |
| VCDI |
0 |
16 |
9 |
48 |
355 |
1074 |
12488 |
16240 |
|
...date precedes bulletin
|
Date: 2025-02-13:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
268 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
91 |
9 |
14 |
4 |
0 |
0 |
0 |
| VODI |
0 |
75 |
9 |
29 |
39 |
5 |
0 |
0 |
| ODI |
0 |
65 |
26 |
63 |
53 |
24 |
3 |
4 |
| CDI |
0 |
23 |
15 |
68 |
230 |
354 |
88 |
13 |
| VCDI |
0 |
0 |
0 |
1 |
134 |
1242 |
12407 |
16724 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
293 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
80 |
8 |
15 |
5 |
0 |
0 |
0 |
| VODI |
0 |
73 |
10 |
31 |
36 |
7 |
0 |
0 |
| ODI |
0 |
58 |
25 |
57 |
63 |
24 |
3 |
4 |
| CDI |
0 |
18 |
15 |
70 |
225 |
366 |
99 |
11 |
| VCDI |
0 |
0 |
0 |
2 |
131 |
1228 |
12396 |
16726 |
|
Date: 2025-02-15:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
218 |
15 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
71 |
8 |
10 |
9 |
0 |
0 |
0 |
| VODI |
0 |
53 |
8 |
9 |
10 |
28 |
0 |
0 |
| ODI |
0 |
30 |
14 |
24 |
20 |
52 |
1 |
1 |
| CDI |
0 |
14 |
19 |
55 |
97 |
211 |
93 |
9 |
| VCDI |
0 |
0 |
0 |
8 |
61 |
1119 |
13404 |
16409 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
239 |
16 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
71 |
9 |
10 |
11 |
0 |
0 |
0 |
| VODI |
0 |
44 |
9 |
8 |
11 |
37 |
0 |
0 |
| ODI |
0 |
21 |
14 |
24 |
15 |
52 |
6 |
0 |
| CDI |
0 |
8 |
12 |
43 |
103 |
264 |
114 |
11 |
| VCDI |
0 |
3 |
4 |
18 |
57 |
1057 |
13378 |
16408 |
|
Date: 2025-02-17:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
211 |
13 |
13 |
2 |
0 |
0 |
0 |
| OW |
0 |
81 |
8 |
14 |
14 |
1 |
0 |
0 |
| VODI |
0 |
48 |
13 |
16 |
6 |
5 |
10 |
0 |
| ODI |
0 |
20 |
15 |
23 |
6 |
14 |
35 |
0 |
| CDI |
0 |
7 |
16 |
39 |
54 |
124 |
88 |
1 |
| VCDI |
0 |
3 |
6 |
32 |
54 |
499 |
9448 |
21143 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
210 |
13 |
13 |
0 |
0 |
0 |
0 |
| OW |
0 |
83 |
8 |
15 |
15 |
0 |
0 |
0 |
| VODI |
0 |
55 |
12 |
15 |
9 |
8 |
8 |
0 |
| ODI |
0 |
12 |
22 |
18 |
6 |
21 |
49 |
0 |
| CDI |
0 |
7 |
10 |
44 |
48 |
108 |
92 |
0 |
| VCDI |
0 |
3 |
6 |
32 |
58 |
506 |
9432 |
21144 |
|
Date: 2025-02-19:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
187 |
13 |
13 |
1 |
0 |
0 |
0 |
| OW |
0 |
126 |
3 |
22 |
8 |
0 |
0 |
0 |
| VODI |
0 |
83 |
19 |
26 |
8 |
1 |
0 |
0 |
| ODI |
0 |
22 |
3 |
20 |
8 |
12 |
7 |
0 |
| CDI |
0 |
29 |
3 |
7 |
39 |
62 |
95 |
2 |
| VCDI |
0 |
26 |
18 |
36 |
64 |
645 |
9416 |
21058 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
152 |
14 |
14 |
3 |
0 |
0 |
0 |
| OW |
0 |
124 |
5 |
26 |
11 |
8 |
0 |
0 |
| VODI |
0 |
95 |
9 |
17 |
10 |
10 |
5 |
0 |
| ODI |
0 |
26 |
5 |
5 |
6 |
24 |
53 |
0 |
| CDI |
0 |
23 |
4 |
19 |
20 |
35 |
125 |
2 |
| VCDI |
0 |
53 |
22 |
43 |
78 |
643 |
9335 |
21058 |
|
Date: 2025-02-21:
| Best estimate |
Forecast |
|
...observations not yet available
|
...observations not yet available
|
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