Validation of sea ice concentration - Asian sector
Bulletin date: 2024-03-21
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-03-15:
| 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 |
97 |
11 |
31 |
1 |
0 |
0 |
0 |
| OW |
0 |
32 |
8 |
102 |
8 |
0 |
0 |
0 |
| VODI |
0 |
18 |
25 |
57 |
16 |
0 |
0 |
0 |
| ODI |
0 |
2 |
3 |
46 |
27 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
28 |
60 |
24 |
1 |
34 |
| VCDI |
0 |
0 |
0 |
0 |
39 |
462 |
4727 |
27237 |
|
...date precedes bulletin
|
Date: 2024-03-17:
| 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 |
102 |
26 |
41 |
2 |
0 |
0 |
0 |
| OW |
0 |
53 |
24 |
33 |
11 |
0 |
0 |
0 |
| VODI |
0 |
58 |
11 |
33 |
18 |
0 |
0 |
0 |
| ODI |
0 |
33 |
7 |
33 |
7 |
2 |
0 |
0 |
| CDI |
0 |
14 |
18 |
57 |
14 |
5 |
2 |
27 |
| VCDI |
0 |
7 |
14 |
111 |
172 |
548 |
5777 |
25836 |
|
...date precedes bulletin
|
Date: 2024-03-19:
| 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 |
76 |
25 |
32 |
8 |
0 |
0 |
0 |
| OW |
0 |
62 |
21 |
68 |
10 |
0 |
0 |
0 |
| VODI |
0 |
4 |
10 |
64 |
30 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
46 |
49 |
6 |
3 |
0 |
| CDI |
0 |
0 |
0 |
38 |
59 |
45 |
44 |
4 |
| VCDI |
0 |
0 |
0 |
9 |
117 |
599 |
6453 |
25212 |
|
...date precedes bulletin
|
Date: 2024-03-21:
| 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 |
55 |
10 |
26 |
1 |
0 |
0 |
0 |
| OW |
0 |
13 |
7 |
85 |
13 |
0 |
0 |
0 |
| VODI |
0 |
1 |
8 |
58 |
33 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
47 |
76 |
3 |
1 |
0 |
| CDI |
0 |
0 |
0 |
2 |
121 |
102 |
51 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
6 |
300 |
6885 |
25185 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
56 |
9 |
28 |
5 |
0 |
0 |
0 |
| OW |
0 |
12 |
8 |
81 |
14 |
0 |
0 |
0 |
| VODI |
0 |
1 |
8 |
61 |
32 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
46 |
78 |
3 |
1 |
0 |
| CDI |
0 |
0 |
0 |
2 |
111 |
83 |
46 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
10 |
319 |
6890 |
25185 |
|
Date: 2024-03-23:
| 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 |
46 |
9 |
19 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
3 |
49 |
7 |
0 |
0 |
0 |
| VODI |
0 |
0 |
2 |
70 |
42 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
35 |
97 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
77 |
148 |
52 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
85 |
4137 |
28212 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
46 |
9 |
30 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
5 |
35 |
14 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
71 |
38 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
38 |
98 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
73 |
132 |
45 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
101 |
4144 |
28212 |
|
Date: 2024-03-25:
| 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 |
38 |
12 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
19 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
37 |
14 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
52 |
131 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
111 |
143 |
18 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
126 |
2741 |
29635 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
38 |
11 |
27 |
2 |
0 |
0 |
0 |
| OW |
0 |
0 |
1 |
18 |
6 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
53 |
38 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
22 |
129 |
1 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
81 |
100 |
70 |
12 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
168 |
2688 |
29627 |
|
Date: 2024-03-27:
| 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 |
32 |
9 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
1 |
27 |
7 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
20 |
28 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
16 |
81 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
146 |
104 |
13 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
14 |
167 |
3038 |
29381 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
32 |
9 |
28 |
5 |
0 |
0 |
0 |
| OW |
0 |
0 |
1 |
5 |
14 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
20 |
26 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
22 |
119 |
2 |
5 |
0 |
| CDI |
0 |
0 |
0 |
0 |
109 |
89 |
64 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
180 |
2982 |
29380 |
|
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 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
30 |
10 |
25 |
4 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
8 |
17 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
24 |
27 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
33 |
38 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
43 |
153 |
88 |
30 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
18 |
84 |
1785 |
30679 |
|
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