Validation of sea ice concentration - Asian sector
Bulletin date: 2024-03-28
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-22:
| 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 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
34 |
10 |
20 |
8 |
0 |
0 |
0 |
| VODI |
0 |
22 |
14 |
19 |
32 |
2 |
0 |
0 |
| ODI |
0 |
6 |
10 |
21 |
63 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
51 |
143 |
42 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
221 |
9299 |
22047 |
|
...date precedes bulletin
|
Date: 2024-03-24:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
3 |
7 |
1 |
0 |
0 |
0 |
| VODI |
0 |
28 |
17 |
33 |
23 |
1 |
0 |
0 |
| ODI |
0 |
6 |
9 |
23 |
54 |
17 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
43 |
120 |
67 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
141 |
7052 |
24432 |
|
...date precedes bulletin
|
Date: 2024-03-26:
| 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 |
2 |
1 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
8 |
3 |
8 |
0 |
0 |
0 |
0 |
| ODI |
0 |
8 |
10 |
44 |
54 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
15 |
77 |
119 |
40 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
16 |
227 |
8034 |
23410 |
|
...date precedes bulletin
|
Date: 2024-03-28:
| 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 |
3 |
1 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
7 |
4 |
8 |
3 |
0 |
0 |
0 |
| ODI |
0 |
5 |
3 |
11 |
15 |
5 |
0 |
0 |
| CDI |
0 |
2 |
1 |
36 |
59 |
74 |
27 |
2 |
| VCDI |
0 |
2 |
3 |
18 |
27 |
216 |
7402 |
24145 |
|
|
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 |
3 |
1 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
7 |
4 |
9 |
3 |
0 |
0 |
0 |
| ODI |
0 |
5 |
3 |
9 |
14 |
5 |
0 |
0 |
| CDI |
0 |
0 |
0 |
37 |
56 |
59 |
22 |
2 |
| VCDI |
0 |
4 |
4 |
18 |
31 |
231 |
7407 |
24145 |
|
Date: 2024-03-30:
| 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 |
17 |
4 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
18 |
3 |
9 |
3 |
0 |
0 |
0 |
| ODI |
0 |
15 |
6 |
7 |
9 |
0 |
0 |
0 |
| CDI |
0 |
19 |
18 |
35 |
18 |
33 |
22 |
0 |
| VCDI |
0 |
36 |
23 |
59 |
44 |
295 |
10635 |
20754 |
|
|
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 |
18 |
5 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
19 |
2 |
8 |
4 |
0 |
0 |
0 |
| ODI |
0 |
13 |
4 |
6 |
7 |
0 |
0 |
0 |
| CDI |
0 |
24 |
24 |
31 |
17 |
28 |
22 |
0 |
| VCDI |
0 |
31 |
19 |
63 |
46 |
300 |
10635 |
20754 |
|
Date: 2024-04-01:
| 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 |
18 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
26 |
11 |
11 |
3 |
0 |
0 |
0 |
| ODI |
0 |
12 |
7 |
12 |
10 |
1 |
0 |
0 |
| CDI |
0 |
2 |
16 |
55 |
40 |
50 |
12 |
3 |
| VCDI |
0 |
7 |
6 |
21 |
27 |
198 |
5915 |
25619 |
|
|
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 |
8 |
2 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
13 |
3 |
7 |
2 |
0 |
0 |
0 |
| ODI |
0 |
12 |
2 |
3 |
2 |
3 |
0 |
0 |
| CDI |
0 |
22 |
11 |
12 |
22 |
28 |
2 |
18 |
| VCDI |
0 |
10 |
22 |
77 |
54 |
218 |
5925 |
25604 |
|
Date: 2024-04-03:
| 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 |
5 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
19 |
6 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
5 |
7 |
19 |
5 |
3 |
1 |
0 |
| CDI |
0 |
13 |
19 |
61 |
107 |
71 |
8 |
8 |
| VCDI |
0 |
0 |
0 |
0 |
4 |
247 |
5863 |
25611 |
|
|
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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
6 |
2 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
12 |
1 |
4 |
0 |
0 |
0 |
0 |
| CDI |
0 |
15 |
16 |
35 |
33 |
33 |
10 |
2 |
| VCDI |
0 |
9 |
13 |
41 |
83 |
288 |
5862 |
25617 |
|
Date: 2024-04-05:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
6 |
6 |
6 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
20 |
3 |
3 |
3 |
0 |
| CDI |
0 |
0 |
4 |
42 |
122 |
112 |
24 |
17 |
| VCDI |
0 |
0 |
0 |
2 |
10 |
118 |
4316 |
27266 |
|
|
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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
2 |
2 |
2 |
0 |
3 |
0 |
0 |
| CDI |
0 |
4 |
10 |
63 |
74 |
52 |
39 |
7 |
| VCDI |
0 |
0 |
0 |
5 |
61 |
178 |
4304 |
27276 |
|
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