Validation of sea ice concentration - Asian sector
Bulletin date: 2023-11-30
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
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 |
|
...date precedes bulletin
|
Date: 2023-11-26:
| 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 |
2 |
1249 |
38 |
34 |
2 |
0 |
0 |
0 |
| OW |
0 |
312 |
35 |
39 |
28 |
0 |
0 |
0 |
| VODI |
0 |
163 |
50 |
112 |
64 |
0 |
0 |
0 |
| ODI |
0 |
61 |
24 |
63 |
91 |
1 |
0 |
0 |
| CDI |
0 |
54 |
18 |
82 |
112 |
102 |
99 |
0 |
| VCDI |
0 |
121 |
55 |
119 |
176 |
680 |
10178 |
17918 |
|
...date precedes bulletin
|
Date: 2023-11-28:
| 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 |
3 |
1157 |
34 |
43 |
8 |
0 |
0 |
0 |
| OW |
0 |
344 |
64 |
77 |
15 |
0 |
0 |
0 |
| VODI |
0 |
85 |
63 |
171 |
72 |
14 |
0 |
0 |
| ODI |
0 |
27 |
22 |
61 |
177 |
75 |
0 |
0 |
| CDI |
0 |
44 |
18 |
49 |
170 |
240 |
46 |
0 |
| VCDI |
0 |
104 |
33 |
74 |
207 |
1407 |
10999 |
16179 |
|
...date precedes bulletin
|
Date: 2023-11-30:
| 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 |
1 |
933 |
39 |
37 |
17 |
0 |
0 |
0 |
| OW |
0 |
356 |
40 |
48 |
75 |
0 |
0 |
0 |
| VODI |
0 |
143 |
73 |
132 |
104 |
8 |
0 |
0 |
| ODI |
0 |
26 |
27 |
79 |
164 |
86 |
10 |
0 |
| CDI |
0 |
55 |
30 |
60 |
146 |
400 |
84 |
0 |
| VCDI |
0 |
11 |
17 |
68 |
167 |
1866 |
15593 |
11187 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1 |
930 |
39 |
46 |
44 |
0 |
0 |
0 |
| OW |
0 |
333 |
44 |
47 |
54 |
0 |
0 |
0 |
| VODI |
0 |
163 |
68 |
129 |
110 |
15 |
0 |
0 |
| ODI |
0 |
35 |
28 |
72 |
156 |
73 |
8 |
0 |
| CDI |
0 |
50 |
30 |
61 |
149 |
414 |
90 |
0 |
| VCDI |
0 |
13 |
17 |
69 |
160 |
1858 |
15589 |
11187 |
|
Date: 2023-12-02:
| 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 |
0 |
803 |
15 |
14 |
1 |
0 |
0 |
0 |
| OW |
0 |
350 |
43 |
54 |
45 |
0 |
0 |
0 |
| VODI |
0 |
155 |
73 |
166 |
90 |
11 |
0 |
0 |
| ODI |
0 |
24 |
19 |
72 |
189 |
136 |
0 |
0 |
| CDI |
0 |
19 |
13 |
45 |
71 |
258 |
41 |
0 |
| VCDI |
0 |
1 |
3 |
28 |
102 |
1185 |
9254 |
18802 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
813 |
21 |
19 |
6 |
0 |
0 |
0 |
| OW |
0 |
320 |
40 |
57 |
43 |
0 |
0 |
0 |
| VODI |
0 |
174 |
70 |
150 |
97 |
24 |
0 |
0 |
| ODI |
0 |
28 |
19 |
80 |
168 |
116 |
0 |
0 |
| CDI |
0 |
16 |
13 |
45 |
83 |
274 |
35 |
0 |
| VCDI |
0 |
1 |
3 |
28 |
101 |
1176 |
9260 |
18802 |
|
Date: 2023-12-04:
| 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 |
2 |
629 |
20 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
263 |
49 |
50 |
7 |
0 |
0 |
0 |
| VODI |
0 |
106 |
85 |
219 |
80 |
10 |
1 |
0 |
| ODI |
0 |
4 |
12 |
115 |
302 |
93 |
0 |
0 |
| CDI |
0 |
0 |
0 |
19 |
161 |
392 |
34 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
43 |
672 |
8364 |
20338 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2 |
591 |
38 |
42 |
12 |
1 |
0 |
0 |
| OW |
0 |
257 |
42 |
90 |
31 |
11 |
1 |
0 |
| VODI |
0 |
129 |
57 |
136 |
114 |
31 |
0 |
0 |
| ODI |
0 |
11 |
12 |
95 |
219 |
89 |
0 |
0 |
| CDI |
0 |
13 |
15 |
44 |
128 |
238 |
10 |
0 |
| VCDI |
0 |
1 |
2 |
8 |
89 |
797 |
8388 |
20338 |
|
Date: 2023-12-06:
| 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 |
446 |
42 |
32 |
0 |
0 |
0 |
0 |
| OW |
0 |
144 |
37 |
96 |
28 |
0 |
0 |
0 |
| VODI |
0 |
58 |
47 |
194 |
135 |
30 |
0 |
0 |
| ODI |
0 |
1 |
8 |
67 |
253 |
116 |
16 |
0 |
| CDI |
0 |
0 |
1 |
19 |
161 |
308 |
114 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
44 |
700 |
9731 |
19254 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
390 |
32 |
51 |
20 |
2 |
0 |
0 |
| OW |
0 |
158 |
39 |
110 |
57 |
6 |
1 |
0 |
| VODI |
0 |
88 |
46 |
134 |
124 |
61 |
11 |
0 |
| ODI |
0 |
8 |
10 |
77 |
223 |
146 |
17 |
0 |
| CDI |
0 |
5 |
6 |
28 |
106 |
215 |
73 |
0 |
| VCDI |
0 |
0 |
2 |
8 |
91 |
724 |
9759 |
19254 |
|
Date: 2023-12-08:
| 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 |
293 |
7 |
23 |
23 |
0 |
0 |
0 |
| OW |
0 |
82 |
27 |
107 |
104 |
6 |
0 |
0 |
| VODI |
0 |
29 |
28 |
111 |
144 |
99 |
0 |
0 |
| ODI |
0 |
1 |
5 |
44 |
162 |
238 |
17 |
0 |
| CDI |
0 |
0 |
0 |
2 |
78 |
322 |
205 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
17 |
473 |
8479 |
20956 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
268 |
11 |
62 |
43 |
4 |
1 |
0 |
| OW |
0 |
68 |
15 |
74 |
118 |
49 |
2 |
0 |
| VODI |
0 |
64 |
28 |
75 |
111 |
140 |
21 |
0 |
| ODI |
0 |
5 |
13 |
63 |
169 |
236 |
34 |
0 |
| CDI |
0 |
0 |
0 |
13 |
60 |
219 |
132 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
27 |
490 |
8511 |
20956 |
|
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