Validation of sea ice concentration - Asian sector
Bulletin date: 2023-11-09
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-11-03:
| 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 |
1434 |
1758 |
3 |
1 |
0 |
0 |
0 |
0 |
| OW |
7 |
232 |
26 |
16 |
0 |
0 |
0 |
0 |
| VODI |
0 |
139 |
44 |
99 |
83 |
22 |
0 |
0 |
| ODI |
0 |
49 |
34 |
84 |
107 |
273 |
7 |
0 |
| CDI |
0 |
3 |
15 |
74 |
402 |
634 |
261 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
592 |
3458 |
10378 |
11843 |
|
...date precedes bulletin
|
Date: 2023-11-05:
| 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 |
694 |
2107 |
30 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
328 |
29 |
23 |
0 |
0 |
0 |
0 |
| VODI |
0 |
141 |
26 |
59 |
59 |
31 |
0 |
0 |
| ODI |
0 |
38 |
39 |
87 |
147 |
106 |
10 |
0 |
| CDI |
0 |
4 |
6 |
86 |
286 |
348 |
173 |
9 |
| VCDI |
0 |
0 |
0 |
7 |
148 |
4710 |
10733 |
11604 |
|
...date precedes bulletin
|
Date: 2023-11-07:
| 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 |
732 |
2300 |
16 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
176 |
30 |
16 |
0 |
0 |
0 |
0 |
| VODI |
0 |
53 |
48 |
94 |
21 |
0 |
0 |
0 |
| ODI |
0 |
8 |
17 |
60 |
101 |
63 |
4 |
0 |
| CDI |
0 |
1 |
0 |
35 |
131 |
255 |
183 |
2 |
| VCDI |
0 |
0 |
0 |
9 |
27 |
2917 |
14240 |
10533 |
|
...date precedes bulletin
|
Date: 2023-11-09:
| 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 |
398 |
2171 |
42 |
27 |
33 |
32 |
0 |
0 |
| OW |
0 |
232 |
36 |
89 |
40 |
8 |
0 |
0 |
| VODI |
0 |
151 |
22 |
35 |
97 |
5 |
0 |
0 |
| ODI |
0 |
48 |
27 |
44 |
65 |
75 |
4 |
0 |
| CDI |
0 |
16 |
10 |
49 |
111 |
325 |
126 |
0 |
| VCDI |
0 |
13 |
13 |
40 |
120 |
2380 |
16199 |
8999 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
398 |
2166 |
45 |
45 |
34 |
34 |
0 |
0 |
| OW |
0 |
174 |
29 |
60 |
29 |
6 |
0 |
0 |
| VODI |
0 |
203 |
21 |
41 |
87 |
3 |
0 |
0 |
| ODI |
0 |
57 |
27 |
33 |
80 |
70 |
6 |
0 |
| CDI |
0 |
16 |
19 |
62 |
105 |
314 |
118 |
0 |
| VCDI |
0 |
15 |
9 |
43 |
131 |
2398 |
16205 |
8999 |
|
Date: 2023-11-11:
| 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 |
106 |
2237 |
34 |
50 |
43 |
15 |
0 |
0 |
| OW |
0 |
207 |
39 |
71 |
41 |
9 |
0 |
0 |
| VODI |
0 |
117 |
56 |
82 |
103 |
49 |
0 |
0 |
| ODI |
0 |
11 |
20 |
61 |
66 |
75 |
6 |
0 |
| CDI |
0 |
5 |
8 |
41 |
88 |
347 |
184 |
7 |
| VCDI |
0 |
9 |
7 |
21 |
94 |
1512 |
13635 |
12626 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
106 |
2222 |
32 |
67 |
49 |
19 |
0 |
0 |
| OW |
0 |
185 |
28 |
39 |
29 |
7 |
0 |
0 |
| VODI |
0 |
143 |
59 |
64 |
100 |
38 |
0 |
0 |
| ODI |
0 |
23 |
32 |
93 |
57 |
76 |
6 |
0 |
| CDI |
0 |
4 |
7 |
46 |
103 |
334 |
186 |
6 |
| VCDI |
0 |
9 |
6 |
17 |
97 |
1533 |
13633 |
12627 |
|
Date: 2023-11-13:
| 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 |
72 |
2349 |
50 |
65 |
42 |
2 |
0 |
0 |
| OW |
0 |
107 |
53 |
64 |
24 |
0 |
0 |
0 |
| VODI |
0 |
24 |
40 |
180 |
112 |
8 |
0 |
0 |
| ODI |
0 |
3 |
3 |
40 |
142 |
96 |
0 |
0 |
| CDI |
0 |
2 |
1 |
7 |
40 |
255 |
46 |
0 |
| VCDI |
0 |
4 |
1 |
10 |
57 |
1461 |
15719 |
11003 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
72 |
2088 |
36 |
57 |
45 |
2 |
0 |
0 |
| OW |
0 |
200 |
16 |
40 |
16 |
0 |
0 |
0 |
| VODI |
0 |
118 |
54 |
104 |
121 |
18 |
0 |
0 |
| ODI |
0 |
72 |
31 |
80 |
73 |
65 |
0 |
0 |
| CDI |
0 |
3 |
7 |
61 |
62 |
238 |
52 |
0 |
| VCDI |
0 |
8 |
4 |
24 |
100 |
1499 |
15713 |
11003 |
|
Date: 2023-11-15:
| 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 |
26 |
2116 |
41 |
65 |
77 |
0 |
0 |
0 |
| OW |
0 |
131 |
24 |
37 |
37 |
0 |
0 |
0 |
| VODI |
0 |
117 |
25 |
68 |
69 |
6 |
0 |
0 |
| ODI |
0 |
31 |
28 |
78 |
124 |
63 |
3 |
0 |
| CDI |
0 |
1 |
2 |
16 |
92 |
219 |
94 |
22 |
| VCDI |
0 |
0 |
0 |
0 |
48 |
1450 |
13958 |
13014 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
26 |
1962 |
36 |
58 |
71 |
0 |
0 |
0 |
| OW |
0 |
153 |
12 |
21 |
28 |
0 |
0 |
0 |
| VODI |
0 |
167 |
35 |
88 |
109 |
11 |
0 |
0 |
| ODI |
0 |
77 |
22 |
32 |
89 |
68 |
8 |
0 |
| CDI |
0 |
37 |
15 |
59 |
73 |
214 |
117 |
12 |
| VCDI |
0 |
0 |
0 |
6 |
77 |
1445 |
13930 |
13024 |
|
Date: 2023-11-17:
| 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 |
10 |
1870 |
49 |
58 |
25 |
26 |
0 |
0 |
| OW |
0 |
137 |
18 |
8 |
26 |
6 |
0 |
0 |
| VODI |
0 |
80 |
28 |
55 |
30 |
28 |
0 |
0 |
| ODI |
0 |
11 |
15 |
33 |
53 |
59 |
20 |
0 |
| CDI |
0 |
0 |
8 |
34 |
123 |
250 |
131 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
58 |
1396 |
14760 |
12676 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
10 |
1767 |
38 |
56 |
32 |
26 |
0 |
0 |
| OW |
0 |
183 |
24 |
12 |
16 |
4 |
0 |
0 |
| VODI |
0 |
120 |
33 |
49 |
28 |
30 |
0 |
0 |
| ODI |
0 |
13 |
9 |
42 |
98 |
97 |
3 |
0 |
| CDI |
0 |
15 |
14 |
24 |
88 |
253 |
98 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
53 |
1355 |
14810 |
12676 |
|
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