Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-08
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-02-02:
| 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 |
69 |
143 |
3 |
19 |
1 |
0 |
0 |
0 |
| OW |
78 |
128 |
3 |
51 |
3 |
0 |
0 |
0 |
| VODI |
31 |
156 |
11 |
50 |
22 |
0 |
0 |
0 |
| ODI |
0 |
36 |
13 |
53 |
25 |
3 |
0 |
0 |
| CDI |
0 |
77 |
13 |
102 |
112 |
79 |
5 |
0 |
| VCDI |
0 |
373 |
58 |
415 |
950 |
2978 |
6647 |
20389 |
|
...date precedes bulletin
|
Date: 2024-02-04:
| 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 |
93 |
151 |
2 |
33 |
0 |
0 |
0 |
0 |
| OW |
60 |
169 |
2 |
11 |
8 |
0 |
0 |
0 |
| VODI |
26 |
125 |
15 |
51 |
38 |
5 |
0 |
0 |
| ODI |
0 |
58 |
12 |
57 |
47 |
9 |
0 |
0 |
| CDI |
0 |
93 |
14 |
78 |
103 |
115 |
8 |
4 |
| VCDI |
0 |
375 |
92 |
400 |
821 |
2946 |
6506 |
20569 |
|
...date precedes bulletin
|
Date: 2024-02-06:
| 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 |
267 |
12 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
262 |
13 |
48 |
0 |
0 |
0 |
0 |
| VODI |
0 |
73 |
7 |
63 |
28 |
0 |
0 |
0 |
| ODI |
0 |
43 |
3 |
33 |
57 |
0 |
0 |
0 |
| CDI |
0 |
98 |
3 |
77 |
144 |
100 |
66 |
0 |
| VCDI |
0 |
42 |
34 |
191 |
651 |
2781 |
7037 |
20949 |
|
...date precedes bulletin
|
Date: 2024-02-08:
| 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 |
214 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
211 |
27 |
21 |
1 |
0 |
0 |
0 |
| VODI |
0 |
104 |
17 |
69 |
35 |
0 |
0 |
0 |
| ODI |
0 |
54 |
11 |
14 |
36 |
3 |
0 |
0 |
| CDI |
0 |
45 |
8 |
15 |
73 |
68 |
9 |
0 |
| VCDI |
0 |
117 |
26 |
117 |
367 |
2255 |
7752 |
21427 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
218 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
215 |
28 |
26 |
1 |
0 |
0 |
0 |
| VODI |
0 |
108 |
17 |
71 |
41 |
0 |
0 |
0 |
| ODI |
0 |
54 |
9 |
10 |
34 |
2 |
0 |
0 |
| CDI |
0 |
45 |
8 |
15 |
75 |
76 |
13 |
0 |
| VCDI |
0 |
105 |
26 |
114 |
361 |
2248 |
7748 |
21427 |
|
Date: 2024-02-10:
| 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 |
168 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
139 |
33 |
41 |
0 |
0 |
0 |
0 |
| VODI |
0 |
76 |
31 |
93 |
15 |
0 |
0 |
0 |
| ODI |
0 |
21 |
10 |
77 |
26 |
1 |
0 |
0 |
| CDI |
0 |
36 |
7 |
24 |
73 |
27 |
11 |
0 |
| VCDI |
0 |
127 |
30 |
134 |
311 |
2229 |
7475 |
21878 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
179 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
137 |
37 |
50 |
1 |
0 |
0 |
0 |
| VODI |
0 |
71 |
28 |
93 |
17 |
0 |
0 |
0 |
| ODI |
0 |
33 |
13 |
73 |
27 |
2 |
0 |
0 |
| CDI |
0 |
33 |
5 |
23 |
75 |
26 |
12 |
0 |
| VCDI |
0 |
114 |
28 |
130 |
305 |
2229 |
7474 |
21878 |
|
Date: 2024-02-12:
| 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 |
179 |
7 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
123 |
40 |
35 |
0 |
0 |
0 |
0 |
| VODI |
0 |
41 |
9 |
156 |
57 |
1 |
0 |
0 |
| ODI |
0 |
34 |
7 |
34 |
62 |
11 |
0 |
0 |
| CDI |
0 |
28 |
14 |
61 |
53 |
82 |
2 |
0 |
| VCDI |
0 |
13 |
5 |
76 |
254 |
1797 |
6988 |
22927 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
169 |
7 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
73 |
19 |
55 |
14 |
0 |
0 |
0 |
| VODI |
0 |
56 |
23 |
81 |
44 |
0 |
0 |
0 |
| ODI |
0 |
15 |
4 |
47 |
31 |
2 |
0 |
0 |
| CDI |
0 |
20 |
5 |
48 |
51 |
11 |
4 |
1 |
| VCDI |
0 |
85 |
24 |
128 |
286 |
1878 |
6986 |
22926 |
|
Date: 2024-02-14:
| 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 |
218 |
3 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
148 |
21 |
12 |
0 |
0 |
0 |
0 |
| VODI |
0 |
52 |
36 |
88 |
6 |
0 |
0 |
0 |
| ODI |
0 |
27 |
8 |
41 |
12 |
1 |
0 |
0 |
| CDI |
0 |
33 |
17 |
55 |
21 |
48 |
7 |
0 |
| VCDI |
0 |
78 |
16 |
82 |
243 |
1324 |
5867 |
24628 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
202 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
66 |
25 |
11 |
0 |
0 |
0 |
0 |
| VODI |
0 |
118 |
17 |
59 |
3 |
0 |
0 |
0 |
| ODI |
0 |
36 |
16 |
51 |
9 |
4 |
0 |
0 |
| CDI |
0 |
34 |
6 |
31 |
13 |
26 |
9 |
0 |
| VCDI |
0 |
100 |
34 |
130 |
257 |
1343 |
5865 |
24628 |
|
Date: 2024-02-16:
| 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 |
265 |
5 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
166 |
15 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
77 |
16 |
41 |
0 |
0 |
0 |
0 |
| ODI |
0 |
40 |
11 |
24 |
6 |
0 |
0 |
0 |
| CDI |
0 |
66 |
5 |
59 |
17 |
19 |
11 |
0 |
| VCDI |
0 |
171 |
46 |
188 |
381 |
1440 |
7258 |
22763 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
237 |
3 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
83 |
20 |
4 |
0 |
0 |
0 |
0 |
| VODI |
0 |
77 |
12 |
39 |
0 |
0 |
0 |
0 |
| ODI |
0 |
47 |
4 |
20 |
2 |
0 |
0 |
0 |
| CDI |
0 |
81 |
3 |
36 |
4 |
15 |
8 |
3 |
| VCDI |
0 |
260 |
56 |
218 |
398 |
1444 |
7261 |
22760 |
|
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