Validation of sea ice concentration - Asian sector
Bulletin date: 2022-04-21
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-04-15:
| 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 |
9 |
19 |
41 |
38 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
28 |
27 |
3 |
0 |
0 |
| VODI |
0 |
0 |
2 |
24 |
28 |
8 |
0 |
0 |
| ODI |
0 |
0 |
1 |
19 |
45 |
21 |
0 |
0 |
| CDI |
0 |
0 |
1 |
10 |
59 |
75 |
16 |
4 |
| VCDI |
0 |
0 |
1 |
39 |
227 |
1409 |
11288 |
18640 |
|
...date precedes bulletin
|
Date: 2022-04-17:
| 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 |
1 |
31 |
34 |
22 |
6 |
0 |
0 |
| OW |
0 |
0 |
4 |
17 |
17 |
17 |
0 |
0 |
| VODI |
0 |
0 |
1 |
13 |
27 |
19 |
0 |
0 |
| ODI |
0 |
0 |
0 |
11 |
22 |
35 |
5 |
0 |
| CDI |
0 |
0 |
0 |
8 |
53 |
127 |
95 |
10 |
| VCDI |
0 |
0 |
1 |
2 |
180 |
1310 |
12044 |
17970 |
|
...date precedes bulletin
|
Date: 2022-04-19:
| 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 |
0 |
24 |
35 |
14 |
0 |
0 |
0 |
| OW |
0 |
0 |
3 |
19 |
25 |
7 |
0 |
0 |
| VODI |
0 |
1 |
2 |
20 |
30 |
19 |
0 |
0 |
| ODI |
0 |
0 |
0 |
9 |
38 |
65 |
9 |
0 |
| CDI |
0 |
0 |
0 |
8 |
59 |
118 |
143 |
3 |
| VCDI |
0 |
0 |
0 |
6 |
194 |
1107 |
12092 |
18032 |
|
...date precedes bulletin
|
Date: 2022-04-21:
| 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 |
12 |
18 |
22 |
0 |
0 |
0 |
| OW |
0 |
0 |
2 |
12 |
21 |
9 |
0 |
0 |
| VODI |
0 |
2 |
0 |
29 |
20 |
23 |
0 |
0 |
| ODI |
0 |
0 |
0 |
16 |
26 |
28 |
4 |
0 |
| CDI |
0 |
0 |
0 |
3 |
51 |
130 |
130 |
0 |
| VCDI |
0 |
0 |
0 |
25 |
220 |
1300 |
11672 |
18307 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
11 |
19 |
26 |
0 |
0 |
0 |
| OW |
0 |
0 |
3 |
13 |
17 |
13 |
0 |
0 |
| VODI |
0 |
2 |
0 |
33 |
25 |
25 |
0 |
0 |
| ODI |
0 |
0 |
0 |
11 |
31 |
24 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
46 |
117 |
107 |
0 |
| VCDI |
0 |
0 |
0 |
25 |
215 |
1311 |
11699 |
18307 |
|
Date: 2022-04-23:
| 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 |
9 |
27 |
9 |
0 |
0 |
0 |
| OW |
0 |
0 |
4 |
17 |
13 |
9 |
0 |
0 |
| VODI |
0 |
0 |
0 |
13 |
29 |
23 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
41 |
28 |
2 |
0 |
| CDI |
0 |
0 |
0 |
0 |
33 |
93 |
41 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
29 |
661 |
11730 |
19266 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
10 |
29 |
11 |
0 |
0 |
0 |
| OW |
0 |
0 |
3 |
16 |
11 |
14 |
0 |
0 |
| VODI |
0 |
0 |
0 |
12 |
42 |
20 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
35 |
24 |
4 |
0 |
| CDI |
0 |
0 |
0 |
0 |
32 |
89 |
28 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
23 |
667 |
11741 |
19268 |
|
Date: 2022-04-25:
| 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 |
3 |
22 |
8 |
0 |
0 |
0 |
| OW |
0 |
1 |
4 |
22 |
13 |
0 |
0 |
0 |
| VODI |
0 |
1 |
2 |
21 |
24 |
14 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
37 |
34 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
39 |
89 |
7 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
13 |
532 |
12211 |
18982 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
3 |
22 |
14 |
0 |
0 |
0 |
| OW |
0 |
0 |
3 |
12 |
16 |
11 |
0 |
0 |
| VODI |
0 |
2 |
2 |
21 |
17 |
19 |
0 |
0 |
| ODI |
0 |
0 |
1 |
12 |
26 |
24 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
31 |
62 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
30 |
553 |
12194 |
18982 |
|
Date: 2022-04-27:
| 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 |
6 |
5 |
4 |
3 |
0 |
0 |
| OW |
0 |
5 |
4 |
10 |
12 |
3 |
0 |
0 |
| VODI |
0 |
2 |
3 |
14 |
21 |
11 |
0 |
0 |
| ODI |
0 |
0 |
0 |
14 |
38 |
21 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
57 |
128 |
96 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
31 |
870 |
15311 |
15402 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
5 |
10 |
10 |
6 |
0 |
0 |
| OW |
0 |
0 |
1 |
4 |
23 |
4 |
0 |
0 |
| VODI |
0 |
8 |
2 |
6 |
19 |
21 |
0 |
0 |
| ODI |
0 |
3 |
5 |
12 |
24 |
25 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
49 |
101 |
129 |
13 |
| VCDI |
0 |
0 |
0 |
1 |
38 |
879 |
15278 |
15392 |
|
Date: 2022-04-29:
| 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 |
8 |
11 |
5 |
0 |
0 |
0 |
| OW |
0 |
30 |
11 |
18 |
2 |
0 |
0 |
0 |
| VODI |
0 |
9 |
24 |
38 |
11 |
11 |
0 |
0 |
| ODI |
0 |
6 |
10 |
54 |
45 |
31 |
2 |
0 |
| CDI |
0 |
3 |
3 |
53 |
88 |
149 |
84 |
1 |
| VCDI |
0 |
0 |
1 |
106 |
427 |
3381 |
12587 |
14868 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
15 |
8 |
7 |
0 |
0 |
0 |
| OW |
0 |
3 |
9 |
15 |
3 |
0 |
0 |
0 |
| VODI |
0 |
36 |
14 |
41 |
8 |
2 |
0 |
0 |
| ODI |
0 |
11 |
15 |
46 |
33 |
26 |
5 |
0 |
| CDI |
0 |
3 |
4 |
64 |
81 |
135 |
92 |
15 |
| VCDI |
0 |
0 |
0 |
106 |
446 |
3409 |
12576 |
14854 |
|
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