Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-01
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-01-26:
| 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 |
59 |
14 |
24 |
0 |
0 |
0 |
0 |
| OW |
0 |
17 |
12 |
31 |
2 |
0 |
0 |
0 |
| VODI |
0 |
41 |
25 |
75 |
37 |
1 |
0 |
0 |
| ODI |
0 |
37 |
21 |
26 |
27 |
4 |
0 |
0 |
| CDI |
0 |
22 |
23 |
35 |
26 |
43 |
5 |
1 |
| VCDI |
0 |
4 |
13 |
73 |
90 |
602 |
7846 |
23860 |
|
...date precedes bulletin
|
Date: 2024-01-28:
| 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 |
61 |
16 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
15 |
9 |
16 |
0 |
0 |
0 |
0 |
| VODI |
0 |
46 |
26 |
91 |
19 |
0 |
0 |
0 |
| ODI |
0 |
59 |
17 |
30 |
30 |
0 |
0 |
0 |
| CDI |
0 |
44 |
10 |
16 |
29 |
2 |
16 |
0 |
| VCDI |
0 |
25 |
26 |
96 |
169 |
812 |
10210 |
21197 |
|
...date precedes bulletin
|
Date: 2024-01-30:
| 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 |
91 |
12 |
0 |
0 |
0 |
0 |
0 |
| OW |
12 |
239 |
1 |
20 |
0 |
0 |
0 |
0 |
| VODI |
4 |
137 |
4 |
28 |
8 |
3 |
0 |
0 |
| ODI |
0 |
30 |
3 |
27 |
20 |
15 |
0 |
0 |
| CDI |
0 |
46 |
10 |
40 |
81 |
56 |
9 |
4 |
| VCDI |
0 |
106 |
38 |
213 |
441 |
1567 |
8019 |
21812 |
|
...date precedes bulletin
|
Date: 2024-02-01:
| 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 |
49 |
148 |
9 |
3 |
0 |
0 |
0 |
0 |
| OW |
84 |
121 |
4 |
34 |
3 |
0 |
0 |
0 |
| VODI |
19 |
125 |
22 |
49 |
21 |
0 |
0 |
0 |
| ODI |
0 |
35 |
8 |
49 |
27 |
2 |
0 |
0 |
| CDI |
0 |
78 |
21 |
77 |
124 |
66 |
13 |
0 |
| VCDI |
0 |
345 |
85 |
340 |
854 |
2940 |
6987 |
20354 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
40 |
154 |
10 |
4 |
0 |
0 |
0 |
0 |
| OW |
93 |
107 |
3 |
35 |
3 |
0 |
0 |
0 |
| VODI |
19 |
133 |
23 |
47 |
16 |
0 |
0 |
0 |
| ODI |
0 |
39 |
7 |
53 |
28 |
3 |
0 |
0 |
| CDI |
0 |
77 |
17 |
71 |
116 |
61 |
11 |
0 |
| VCDI |
0 |
342 |
89 |
342 |
866 |
2944 |
6989 |
20354 |
|
Date: 2024-02-03:
| 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 |
103 |
147 |
10 |
21 |
2 |
0 |
0 |
0 |
| OW |
57 |
171 |
5 |
39 |
6 |
0 |
0 |
0 |
| VODI |
21 |
152 |
13 |
46 |
30 |
0 |
0 |
0 |
| ODI |
0 |
52 |
9 |
45 |
42 |
11 |
0 |
0 |
| CDI |
0 |
75 |
18 |
97 |
107 |
92 |
4 |
13 |
| VCDI |
0 |
439 |
82 |
449 |
1027 |
3041 |
6029 |
20641 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
105 |
150 |
10 |
21 |
2 |
0 |
0 |
0 |
| OW |
61 |
156 |
4 |
29 |
8 |
0 |
0 |
0 |
| VODI |
15 |
159 |
10 |
54 |
25 |
0 |
0 |
0 |
| ODI |
0 |
50 |
11 |
40 |
36 |
9 |
0 |
0 |
| CDI |
0 |
77 |
18 |
95 |
106 |
86 |
3 |
15 |
| VCDI |
0 |
444 |
84 |
458 |
1037 |
3049 |
6030 |
20639 |
|
Date: 2024-02-05:
| 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 |
53 |
252 |
12 |
22 |
0 |
0 |
0 |
0 |
| OW |
12 |
280 |
30 |
29 |
0 |
0 |
0 |
0 |
| VODI |
0 |
69 |
5 |
80 |
10 |
0 |
0 |
0 |
| ODI |
0 |
41 |
11 |
63 |
54 |
0 |
0 |
0 |
| CDI |
0 |
169 |
57 |
136 |
247 |
228 |
15 |
1 |
| VCDI |
0 |
1 |
13 |
271 |
675 |
3060 |
6581 |
20619 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
36 |
168 |
12 |
17 |
0 |
0 |
0 |
0 |
| OW |
29 |
213 |
0 |
11 |
0 |
0 |
0 |
0 |
| VODI |
0 |
105 |
22 |
51 |
27 |
3 |
0 |
0 |
| ODI |
0 |
33 |
8 |
38 |
39 |
10 |
0 |
0 |
| CDI |
0 |
66 |
7 |
79 |
120 |
148 |
13 |
0 |
| VCDI |
0 |
227 |
79 |
405 |
800 |
3127 |
6583 |
20620 |
|
Date: 2024-02-07:
| 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 |
236 |
8 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
228 |
16 |
49 |
0 |
0 |
0 |
0 |
| VODI |
0 |
89 |
11 |
65 |
33 |
1 |
0 |
0 |
| ODI |
0 |
39 |
2 |
30 |
49 |
1 |
2 |
0 |
| CDI |
0 |
50 |
2 |
27 |
101 |
68 |
34 |
0 |
| VCDI |
0 |
88 |
35 |
147 |
540 |
2226 |
7773 |
21132 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
153 |
8 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
232 |
5 |
11 |
1 |
0 |
0 |
0 |
| VODI |
0 |
103 |
8 |
30 |
10 |
0 |
0 |
0 |
| ODI |
0 |
26 |
5 |
46 |
17 |
1 |
0 |
0 |
| CDI |
0 |
36 |
4 |
43 |
75 |
71 |
52 |
0 |
| VCDI |
0 |
180 |
44 |
192 |
620 |
2224 |
7757 |
21132 |
|
Date: 2024-02-09:
| 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 |
189 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
184 |
37 |
9 |
0 |
0 |
0 |
0 |
| VODI |
0 |
110 |
27 |
75 |
20 |
0 |
0 |
0 |
| ODI |
0 |
32 |
18 |
39 |
37 |
3 |
0 |
0 |
| CDI |
0 |
42 |
5 |
21 |
61 |
43 |
10 |
0 |
| VCDI |
0 |
154 |
26 |
117 |
454 |
2000 |
7770 |
21610 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
131 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
144 |
18 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
147 |
39 |
33 |
2 |
0 |
0 |
0 |
| ODI |
0 |
42 |
16 |
23 |
5 |
3 |
3 |
0 |
| CDI |
0 |
31 |
5 |
35 |
37 |
45 |
9 |
0 |
| VCDI |
0 |
216 |
37 |
168 |
528 |
1998 |
7768 |
21610 |
|
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