Validation of sea ice concentration - Asian sector
Bulletin date: 2024-04-04
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-29:
| 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 |
30 |
8 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
2 |
34 |
11 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
23 |
20 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
22 |
60 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
16 |
101 |
50 |
4 |
4 |
| VCDI |
0 |
0 |
0 |
36 |
65 |
122 |
1811 |
30675 |
|
...date precedes bulletin
|
Date: 2024-03-31:
| 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 |
29 |
1 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
8 |
24 |
16 |
0 |
0 |
0 |
| VODI |
0 |
8 |
6 |
24 |
39 |
0 |
0 |
0 |
| ODI |
0 |
4 |
5 |
12 |
45 |
3 |
0 |
0 |
| CDI |
0 |
2 |
13 |
34 |
25 |
43 |
16 |
1 |
| VCDI |
0 |
0 |
1 |
116 |
79 |
178 |
5925 |
26424 |
|
...date precedes bulletin
|
Date: 2024-04-02:
| 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 |
53 |
11 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
4 |
7 |
28 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
3 |
54 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
56 |
13 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
58 |
119 |
55 |
1 |
5 |
| VCDI |
0 |
0 |
0 |
1 |
57 |
199 |
2072 |
30291 |
|
...date precedes bulletin
|
Date: 2024-04-04:
| 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 |
52 |
5 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
4 |
0 |
16 |
6 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
23 |
13 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
24 |
33 |
9 |
0 |
0 |
| CDI |
0 |
0 |
0 |
28 |
174 |
106 |
8 |
8 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
127 |
2981 |
29453 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
55 |
5 |
9 |
1 |
0 |
0 |
0 |
| OW |
0 |
1 |
0 |
21 |
5 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
25 |
14 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
22 |
32 |
7 |
0 |
0 |
| CDI |
0 |
0 |
0 |
29 |
170 |
109 |
13 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
126 |
2976 |
29447 |
|
Date: 2024-04-06:
| 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 |
52 |
10 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
0 |
15 |
1 |
0 |
0 |
0 |
| VODI |
0 |
0 |
2 |
22 |
11 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
19 |
34 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
192 |
102 |
2 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
20 |
364 |
5542 |
26675 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
54 |
8 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
2 |
19 |
2 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
24 |
10 |
0 |
0 |
0 |
| ODI |
0 |
0 |
1 |
16 |
35 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
192 |
94 |
3 |
2 |
| VCDI |
0 |
0 |
0 |
0 |
19 |
372 |
5541 |
26673 |
|
Date: 2024-04-08:
| 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 |
65 |
8 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
2 |
6 |
12 |
0 |
0 |
0 |
0 |
| VODI |
0 |
1 |
1 |
51 |
8 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
20 |
19 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
95 |
211 |
22 |
12 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
315 |
7454 |
24784 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
65 |
9 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
2 |
3 |
13 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
3 |
26 |
1 |
0 |
0 |
0 |
| ODI |
0 |
1 |
0 |
26 |
12 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
14 |
105 |
177 |
27 |
10 |
| VCDI |
0 |
0 |
0 |
0 |
13 |
349 |
7449 |
24786 |
|
Date: 2024-04-10:
| 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 |
57 |
10 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
5 |
35 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
37 |
6 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
3 |
13 |
0 |
0 |
2 |
| CDI |
0 |
0 |
0 |
0 |
44 |
127 |
16 |
23 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
129 |
5793 |
26787 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
58 |
13 |
18 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
2 |
25 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
28 |
1 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
10 |
6 |
2 |
0 |
10 |
| CDI |
0 |
0 |
0 |
2 |
49 |
63 |
19 |
41 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
191 |
5790 |
26761 |
|
Date: 2024-04-12:
| 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 |
60 |
14 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
4 |
24 |
0 |
0 |
0 |
0 |
| VODI |
0 |
2 |
1 |
26 |
8 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
0 |
9 |
4 |
0 |
1 |
| CDI |
0 |
0 |
0 |
0 |
29 |
172 |
28 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
581 |
8077 |
24042 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
62 |
15 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
4 |
15 |
1 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
15 |
4 |
1 |
1 |
0 |
| ODI |
0 |
0 |
0 |
2 |
3 |
8 |
9 |
2 |
| CDI |
0 |
0 |
0 |
0 |
29 |
98 |
40 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
9 |
650 |
8055 |
24030 |
|
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