Validation of sea ice concentration - Asian sector
Bulletin date: 2024-05-16
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-05-10:
| 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 |
4 |
0 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
6 |
15 |
3 |
1 |
0 |
0 |
| VODI |
0 |
63 |
17 |
27 |
4 |
3 |
7 |
0 |
| ODI |
0 |
4 |
8 |
28 |
32 |
18 |
16 |
0 |
| CDI |
0 |
12 |
13 |
51 |
170 |
262 |
144 |
0 |
| VCDI |
0 |
33 |
36 |
156 |
423 |
1332 |
14946 |
14236 |
|
...date precedes bulletin
|
Date: 2024-05-12:
| 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 |
5 |
0 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
28 |
3 |
16 |
7 |
0 |
0 |
0 |
| VODI |
0 |
55 |
12 |
18 |
8 |
3 |
7 |
0 |
| ODI |
0 |
6 |
9 |
20 |
24 |
24 |
15 |
0 |
| CDI |
0 |
10 |
22 |
83 |
165 |
298 |
127 |
0 |
| VCDI |
0 |
73 |
41 |
260 |
381 |
1308 |
17292 |
11756 |
|
...date precedes bulletin
|
Date: 2024-05-14:
| 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 |
4 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
44 |
3 |
14 |
2 |
0 |
0 |
0 |
| VODI |
0 |
46 |
27 |
23 |
18 |
5 |
9 |
0 |
| ODI |
0 |
3 |
8 |
41 |
56 |
26 |
8 |
0 |
| CDI |
0 |
67 |
23 |
87 |
229 |
522 |
123 |
0 |
| VCDI |
0 |
31 |
42 |
181 |
323 |
1325 |
16584 |
12208 |
|
...date precedes bulletin
|
Date: 2024-05-16:
| 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 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
55 |
4 |
10 |
7 |
0 |
1 |
0 |
| VODI |
0 |
64 |
15 |
17 |
9 |
4 |
9 |
0 |
| ODI |
0 |
3 |
9 |
45 |
41 |
17 |
13 |
0 |
| CDI |
0 |
29 |
24 |
106 |
222 |
480 |
114 |
0 |
| VCDI |
0 |
21 |
23 |
165 |
316 |
1085 |
17506 |
11667 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
2 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
53 |
6 |
9 |
6 |
0 |
1 |
0 |
| VODI |
0 |
66 |
12 |
21 |
10 |
3 |
10 |
0 |
| ODI |
0 |
2 |
10 |
37 |
29 |
18 |
11 |
0 |
| CDI |
0 |
30 |
24 |
112 |
235 |
493 |
134 |
0 |
| VCDI |
0 |
20 |
23 |
163 |
315 |
1072 |
17487 |
11667 |
|
Date: 2024-05-18:
| 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 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
62 |
2 |
6 |
4 |
0 |
0 |
0 |
| VODI |
0 |
51 |
13 |
29 |
12 |
12 |
10 |
0 |
| ODI |
0 |
2 |
10 |
34 |
24 |
14 |
13 |
0 |
| CDI |
0 |
42 |
22 |
120 |
290 |
525 |
225 |
0 |
| VCDI |
0 |
15 |
32 |
163 |
384 |
872 |
15397 |
13696 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
62 |
2 |
5 |
3 |
0 |
0 |
0 |
| VODI |
0 |
51 |
13 |
30 |
14 |
8 |
8 |
0 |
| ODI |
0 |
2 |
10 |
30 |
16 |
13 |
15 |
0 |
| CDI |
0 |
46 |
25 |
123 |
293 |
494 |
308 |
62 |
| VCDI |
0 |
11 |
29 |
164 |
388 |
908 |
15314 |
13634 |
|
Date: 2024-05-20:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
129 |
12 |
7 |
1 |
3 |
0 |
0 |
| VODI |
0 |
38 |
23 |
76 |
31 |
12 |
7 |
0 |
| ODI |
0 |
28 |
21 |
60 |
132 |
52 |
19 |
0 |
| CDI |
0 |
3 |
9 |
77 |
329 |
619 |
207 |
4 |
| VCDI |
0 |
0 |
3 |
76 |
338 |
1201 |
15787 |
12778 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
1 |
2 |
6 |
3 |
0 |
0 |
| VODI |
0 |
85 |
12 |
35 |
17 |
8 |
8 |
0 |
| ODI |
0 |
29 |
9 |
27 |
3 |
13 |
27 |
0 |
| CDI |
0 |
37 |
43 |
135 |
343 |
438 |
348 |
2 |
| VCDI |
0 |
0 |
3 |
97 |
462 |
1425 |
15637 |
12780 |
|
Date: 2024-05-22:
| 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 |
0 |
0 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
115 |
14 |
9 |
4 |
0 |
1 |
0 |
| VODI |
0 |
44 |
18 |
84 |
39 |
16 |
10 |
0 |
| ODI |
0 |
44 |
30 |
60 |
141 |
29 |
42 |
0 |
| CDI |
0 |
0 |
15 |
124 |
372 |
792 |
474 |
2 |
| VCDI |
0 |
1 |
5 |
120 |
426 |
1772 |
16347 |
10930 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
25 |
4 |
8 |
10 |
3 |
0 |
0 |
| VODI |
0 |
95 |
11 |
32 |
20 |
9 |
11 |
0 |
| ODI |
0 |
33 |
16 |
45 |
19 |
14 |
39 |
0 |
| CDI |
0 |
41 |
41 |
149 |
446 |
590 |
411 |
3 |
| VCDI |
0 |
10 |
10 |
163 |
487 |
1993 |
16413 |
10929 |
|
Date: 2024-05-24:
| 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 |
2 |
3 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
81 |
12 |
18 |
8 |
5 |
2 |
0 |
| VODI |
0 |
19 |
32 |
103 |
45 |
8 |
7 |
1 |
| ODI |
0 |
9 |
32 |
123 |
147 |
34 |
29 |
10 |
| CDI |
0 |
4 |
7 |
103 |
516 |
1312 |
536 |
41 |
| VCDI |
0 |
5 |
13 |
115 |
517 |
2310 |
16832 |
9039 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
4 |
3 |
7 |
2 |
0 |
0 |
0 |
| OW |
0 |
20 |
12 |
26 |
8 |
0 |
0 |
0 |
| VODI |
0 |
57 |
17 |
28 |
18 |
10 |
10 |
0 |
| ODI |
0 |
22 |
15 |
59 |
43 |
25 |
44 |
7 |
| CDI |
0 |
12 |
39 |
211 |
600 |
877 |
478 |
40 |
| VCDI |
0 |
5 |
13 |
133 |
562 |
2757 |
16874 |
9044 |
|
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