Validation of sea ice concentration - Asian sector
Bulletin date: 2024-03-28
Data source: OSI SAF N.H. multi-product 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 |
57 |
10 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
4 |
70 |
12 |
0 |
0 |
0 |
| VODI |
0 |
0 |
5 |
58 |
44 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
34 |
92 |
3 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
85 |
146 |
45 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
167 |
4950 |
27294 |
|
...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 |
47 |
15 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
28 |
2 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
82 |
40 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
31 |
102 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
79 |
135 |
48 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
86 |
1987 |
30398 |
|
...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 |
32 |
10 |
16 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
23 |
2 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
20 |
21 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
26 |
139 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
117 |
132 |
12 |
11 |
| VCDI |
0 |
0 |
0 |
0 |
7 |
177 |
2095 |
30256 |
|
...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 |
36 |
7 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
1 |
33 |
7 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
20 |
28 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
12 |
63 |
2 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
115 |
80 |
6 |
2 |
| VCDI |
0 |
0 |
0 |
10 |
50 |
120 |
1950 |
30544 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
36 |
6 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
2 |
33 |
6 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
20 |
27 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
12 |
67 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
2 |
108 |
67 |
3 |
2 |
| VCDI |
0 |
0 |
0 |
15 |
55 |
135 |
1953 |
30544 |
|
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 |
29 |
4 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
7 |
14 |
25 |
14 |
0 |
0 |
0 |
| VODI |
0 |
6 |
8 |
16 |
26 |
0 |
0 |
0 |
| ODI |
0 |
0 |
10 |
17 |
58 |
0 |
0 |
0 |
| CDI |
0 |
0 |
1 |
64 |
35 |
19 |
3 |
13 |
| VCDI |
0 |
0 |
0 |
100 |
103 |
194 |
2432 |
29892 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
30 |
5 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
8 |
12 |
30 |
14 |
0 |
0 |
0 |
| VODI |
0 |
4 |
10 |
14 |
27 |
0 |
0 |
0 |
| ODI |
0 |
0 |
9 |
13 |
55 |
0 |
0 |
0 |
| CDI |
0 |
0 |
1 |
74 |
32 |
16 |
3 |
10 |
| VCDI |
0 |
0 |
0 |
93 |
108 |
197 |
2432 |
29895 |
|
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 |
32 |
9 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
4 |
9 |
16 |
6 |
0 |
0 |
0 |
| VODI |
0 |
0 |
7 |
45 |
31 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
26 |
52 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
58 |
69 |
52 |
1 |
1 |
| VCDI |
0 |
0 |
0 |
22 |
61 |
147 |
2278 |
30146 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
32 |
7 |
8 |
1 |
0 |
0 |
0 |
| OW |
0 |
0 |
4 |
36 |
14 |
0 |
0 |
0 |
| VODI |
0 |
2 |
7 |
15 |
35 |
0 |
0 |
0 |
| ODI |
0 |
2 |
4 |
12 |
27 |
1 |
0 |
0 |
| CDI |
0 |
0 |
3 |
35 |
33 |
26 |
1 |
16 |
| VCDI |
0 |
0 |
0 |
85 |
109 |
172 |
2278 |
30131 |
|
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 |
63 |
8 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
6 |
4 |
19 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
6 |
39 |
0 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
48 |
13 |
4 |
0 |
0 |
| CDI |
0 |
0 |
0 |
89 |
155 |
47 |
3 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
215 |
3287 |
29058 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
56 |
10 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
1 |
29 |
0 |
0 |
0 |
0 |
| VODI |
0 |
2 |
2 |
31 |
0 |
0 |
0 |
0 |
| ODI |
0 |
1 |
5 |
16 |
0 |
0 |
0 |
0 |
| CDI |
0 |
0 |
0 |
61 |
52 |
22 |
13 |
3 |
| VCDI |
0 |
0 |
0 |
54 |
133 |
244 |
3277 |
29062 |
|
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 |
52 |
10 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
1 |
20 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
25 |
10 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
20 |
39 |
6 |
0 |
0 |
| CDI |
0 |
0 |
0 |
16 |
173 |
125 |
5 |
7 |
| VCDI |
0 |
0 |
0 |
0 |
11 |
137 |
2618 |
29807 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
48 |
10 |
29 |
6 |
0 |
0 |
0 |
| OW |
0 |
7 |
2 |
6 |
18 |
0 |
0 |
0 |
| VODI |
0 |
0 |
2 |
3 |
17 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
7 |
1 |
3 |
0 |
0 |
| CDI |
0 |
0 |
0 |
44 |
115 |
81 |
7 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
76 |
184 |
2616 |
29800 |
|
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