Validation of sea ice concentration - Asian sector
Bulletin date: 2023-11-16
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-10:
| 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 |
909 |
1517 |
26 |
25 |
0 |
0 |
0 |
0 |
| OW |
0 |
219 |
47 |
89 |
53 |
1 |
0 |
0 |
| VODI |
0 |
138 |
50 |
96 |
115 |
56 |
0 |
0 |
| ODI |
0 |
26 |
24 |
79 |
56 |
81 |
0 |
0 |
| CDI |
0 |
5 |
3 |
30 |
122 |
290 |
72 |
0 |
| VCDI |
0 |
1 |
2 |
25 |
109 |
1573 |
16125 |
10118 |
|
...date precedes bulletin
|
Date: 2023-11-12:
| 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 |
321 |
1918 |
7 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
202 |
52 |
58 |
19 |
2 |
0 |
0 |
| VODI |
0 |
124 |
58 |
137 |
140 |
26 |
0 |
0 |
| ODI |
0 |
26 |
10 |
98 |
84 |
119 |
1 |
0 |
| CDI |
0 |
6 |
10 |
44 |
104 |
224 |
86 |
8 |
| VCDI |
0 |
15 |
7 |
28 |
89 |
1644 |
15139 |
11267 |
|
...date precedes bulletin
|
Date: 2023-11-14:
| 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 |
89 |
2085 |
17 |
20 |
0 |
0 |
0 |
0 |
| OW |
0 |
274 |
18 |
34 |
10 |
0 |
0 |
0 |
| VODI |
0 |
154 |
61 |
121 |
74 |
0 |
0 |
0 |
| ODI |
0 |
27 |
23 |
105 |
132 |
48 |
0 |
0 |
| CDI |
0 |
0 |
0 |
33 |
97 |
251 |
33 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
50 |
1625 |
14127 |
12571 |
|
...date precedes bulletin
|
Date: 2023-11-16:
| 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 |
219 |
1777 |
14 |
21 |
2 |
0 |
0 |
0 |
| OW |
0 |
168 |
35 |
27 |
7 |
0 |
0 |
0 |
| VODI |
0 |
66 |
48 |
80 |
74 |
26 |
0 |
0 |
| ODI |
0 |
8 |
8 |
65 |
196 |
65 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
97 |
397 |
54 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
56 |
1281 |
13048 |
14240 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
219 |
1772 |
15 |
17 |
1 |
0 |
0 |
0 |
| OW |
0 |
171 |
37 |
31 |
5 |
0 |
0 |
0 |
| VODI |
0 |
65 |
42 |
75 |
71 |
20 |
0 |
0 |
| ODI |
0 |
11 |
11 |
69 |
201 |
79 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
95 |
397 |
61 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
59 |
1273 |
13041 |
14240 |
|
Date: 2023-11-18:
| 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 |
1657 |
34 |
39 |
3 |
0 |
0 |
0 |
| OW |
0 |
225 |
42 |
47 |
4 |
0 |
0 |
0 |
| VODI |
0 |
46 |
53 |
107 |
47 |
12 |
0 |
0 |
| ODI |
0 |
4 |
7 |
26 |
111 |
58 |
0 |
0 |
| CDI |
0 |
1 |
3 |
15 |
95 |
310 |
43 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
57 |
1040 |
13771 |
14221 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1688 |
37 |
40 |
1 |
0 |
0 |
0 |
| OW |
0 |
187 |
49 |
40 |
6 |
0 |
0 |
0 |
| VODI |
0 |
53 |
44 |
111 |
43 |
7 |
0 |
0 |
| ODI |
0 |
4 |
5 |
26 |
101 |
53 |
1 |
0 |
| CDI |
0 |
1 |
3 |
15 |
110 |
323 |
59 |
0 |
| VCDI |
0 |
0 |
1 |
6 |
56 |
1037 |
13754 |
14221 |
|
Date: 2023-11-20:
| 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 |
1342 |
72 |
61 |
25 |
0 |
0 |
0 |
| OW |
0 |
154 |
27 |
53 |
31 |
1 |
0 |
0 |
| VODI |
0 |
56 |
65 |
143 |
72 |
4 |
0 |
0 |
| ODI |
0 |
0 |
2 |
56 |
155 |
76 |
0 |
0 |
| CDI |
0 |
0 |
0 |
11 |
76 |
343 |
12 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
20 |
525 |
12779 |
15918 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1344 |
81 |
92 |
26 |
0 |
0 |
0 |
| OW |
0 |
169 |
41 |
43 |
34 |
1 |
0 |
0 |
| VODI |
0 |
33 |
37 |
136 |
72 |
8 |
0 |
0 |
| ODI |
0 |
6 |
3 |
28 |
98 |
62 |
1 |
0 |
| CDI |
0 |
0 |
4 |
11 |
115 |
341 |
27 |
0 |
| VCDI |
0 |
0 |
0 |
17 |
34 |
537 |
12763 |
15918 |
|
Date: 2023-11-22:
| 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 |
1300 |
36 |
53 |
21 |
0 |
0 |
0 |
| OW |
0 |
177 |
30 |
49 |
27 |
0 |
0 |
0 |
| VODI |
0 |
153 |
45 |
75 |
85 |
1 |
0 |
0 |
| ODI |
0 |
35 |
27 |
89 |
137 |
19 |
0 |
0 |
| CDI |
0 |
25 |
15 |
35 |
188 |
194 |
54 |
0 |
| VCDI |
0 |
10 |
12 |
37 |
97 |
593 |
10120 |
18343 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1307 |
50 |
80 |
26 |
0 |
0 |
0 |
| OW |
0 |
174 |
27 |
50 |
44 |
0 |
0 |
0 |
| VODI |
0 |
135 |
38 |
81 |
74 |
1 |
0 |
0 |
| ODI |
0 |
46 |
20 |
46 |
77 |
28 |
0 |
0 |
| CDI |
0 |
22 |
16 |
32 |
223 |
160 |
26 |
0 |
| VCDI |
0 |
16 |
14 |
49 |
111 |
618 |
10148 |
18343 |
|
Date: 2023-11-24:
| 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 |
4 |
1371 |
20 |
17 |
11 |
0 |
0 |
0 |
| OW |
0 |
249 |
60 |
43 |
0 |
0 |
0 |
0 |
| VODI |
0 |
184 |
41 |
99 |
36 |
0 |
0 |
0 |
| ODI |
0 |
108 |
26 |
53 |
35 |
3 |
0 |
0 |
| CDI |
0 |
50 |
38 |
74 |
125 |
152 |
27 |
0 |
| VCDI |
0 |
50 |
41 |
98 |
150 |
782 |
10738 |
17397 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4 |
1307 |
39 |
18 |
11 |
0 |
0 |
0 |
| OW |
0 |
198 |
45 |
57 |
0 |
0 |
0 |
0 |
| VODI |
0 |
211 |
33 |
85 |
34 |
0 |
0 |
0 |
| ODI |
0 |
135 |
34 |
54 |
49 |
7 |
0 |
0 |
| CDI |
0 |
75 |
29 |
72 |
129 |
159 |
30 |
17 |
| VCDI |
0 |
86 |
46 |
98 |
134 |
771 |
10735 |
17380 |
|
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