Validation of sea ice concentration - Asian sector
Bulletin date: 2022-05-19
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2022-05-13:
| 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 |
0 |
91 |
43 |
54 |
10 |
1 |
0 |
0 |
| OW |
0 |
41 |
39 |
38 |
7 |
6 |
0 |
0 |
| VODI |
0 |
22 |
41 |
97 |
18 |
8 |
6 |
0 |
| ODI |
0 |
12 |
20 |
100 |
103 |
21 |
14 |
0 |
| CDI |
0 |
9 |
13 |
145 |
296 |
230 |
155 |
0 |
| VCDI |
0 |
10 |
29 |
223 |
731 |
3633 |
13876 |
11940 |
|
...date precedes bulletin
|
Date: 2022-05-15:
| 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 |
0 |
41 |
96 |
48 |
6 |
0 |
0 |
0 |
| OW |
0 |
41 |
38 |
54 |
8 |
4 |
0 |
0 |
| VODI |
0 |
19 |
47 |
92 |
14 |
12 |
1 |
0 |
| ODI |
0 |
7 |
19 |
108 |
59 |
30 |
24 |
0 |
| CDI |
0 |
5 |
17 |
155 |
436 |
256 |
266 |
0 |
| VCDI |
0 |
5 |
24 |
262 |
1089 |
3836 |
12589 |
12374 |
|
...date precedes bulletin
|
Date: 2022-05-17:
| 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 |
0 |
104 |
73 |
40 |
4 |
0 |
0 |
0 |
| OW |
0 |
29 |
36 |
99 |
13 |
2 |
0 |
0 |
| VODI |
0 |
1 |
19 |
141 |
91 |
14 |
1 |
0 |
| ODI |
0 |
1 |
13 |
123 |
147 |
67 |
5 |
0 |
| CDI |
0 |
1 |
23 |
300 |
562 |
551 |
217 |
36 |
| VCDI |
0 |
14 |
43 |
284 |
1163 |
4313 |
11070 |
12482 |
|
...date precedes bulletin
|
Date: 2022-05-19:
| 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 |
178 |
65 |
30 |
1 |
0 |
0 |
0 |
| OW |
0 |
30 |
64 |
94 |
23 |
1 |
0 |
0 |
| VODI |
0 |
12 |
28 |
120 |
81 |
19 |
4 |
0 |
| ODI |
0 |
20 |
34 |
135 |
141 |
59 |
36 |
0 |
| CDI |
0 |
13 |
88 |
263 |
486 |
521 |
312 |
28 |
| VCDI |
0 |
52 |
105 |
409 |
1302 |
4415 |
11591 |
11322 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
173 |
59 |
34 |
2 |
0 |
0 |
0 |
| OW |
0 |
33 |
68 |
81 |
29 |
0 |
0 |
0 |
| VODI |
0 |
16 |
30 |
128 |
68 |
20 |
3 |
0 |
| ODI |
0 |
16 |
40 |
129 |
135 |
49 |
37 |
0 |
| CDI |
0 |
15 |
85 |
270 |
458 |
526 |
326 |
27 |
| VCDI |
0 |
52 |
102 |
409 |
1342 |
4420 |
11577 |
11323 |
|
Date: 2022-05-21:
| 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 |
128 |
47 |
33 |
3 |
0 |
0 |
0 |
| OW |
0 |
12 |
33 |
108 |
48 |
7 |
1 |
0 |
| VODI |
0 |
19 |
22 |
103 |
91 |
41 |
7 |
0 |
| ODI |
0 |
43 |
33 |
107 |
158 |
60 |
66 |
0 |
| CDI |
0 |
108 |
79 |
220 |
525 |
671 |
608 |
0 |
| VCDI |
0 |
143 |
149 |
412 |
1440 |
4243 |
15756 |
6558 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
131 |
46 |
39 |
3 |
0 |
1 |
0 |
| OW |
0 |
11 |
32 |
89 |
41 |
5 |
0 |
0 |
| VODI |
0 |
14 |
32 |
112 |
112 |
35 |
7 |
0 |
| ODI |
0 |
45 |
26 |
109 |
144 |
62 |
67 |
0 |
| CDI |
0 |
116 |
73 |
222 |
523 |
686 |
619 |
0 |
| VCDI |
0 |
136 |
154 |
412 |
1442 |
4234 |
15744 |
6558 |
|
Date: 2022-05-23:
| 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 |
32 |
21 |
45 |
1 |
1 |
1 |
0 |
| OW |
0 |
17 |
24 |
98 |
29 |
3 |
1 |
0 |
| VODI |
0 |
57 |
52 |
179 |
147 |
15 |
13 |
0 |
| ODI |
0 |
56 |
47 |
110 |
330 |
95 |
52 |
0 |
| CDI |
0 |
143 |
86 |
313 |
945 |
1162 |
497 |
0 |
| VCDI |
0 |
50 |
139 |
293 |
964 |
4607 |
15189 |
6268 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
41 |
30 |
84 |
15 |
2 |
1 |
0 |
| OW |
0 |
9 |
16 |
57 |
51 |
2 |
0 |
0 |
| VODI |
0 |
8 |
25 |
139 |
126 |
15 |
20 |
0 |
| ODI |
0 |
48 |
29 |
79 |
212 |
90 |
65 |
0 |
| CDI |
0 |
124 |
85 |
264 |
734 |
772 |
783 |
0 |
| VCDI |
0 |
125 |
184 |
415 |
1278 |
5002 |
14884 |
6268 |
|
Date: 2022-05-25:
| 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 |
62 |
33 |
35 |
3 |
0 |
0 |
0 |
| OW |
0 |
27 |
23 |
104 |
48 |
4 |
1 |
0 |
| VODI |
0 |
40 |
45 |
169 |
105 |
16 |
4 |
0 |
| ODI |
0 |
33 |
36 |
152 |
247 |
70 |
62 |
0 |
| CDI |
0 |
131 |
93 |
314 |
948 |
1216 |
643 |
0 |
| VCDI |
0 |
112 |
80 |
317 |
970 |
4196 |
15179 |
6564 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
82 |
34 |
51 |
29 |
0 |
0 |
0 |
| OW |
0 |
7 |
33 |
57 |
20 |
5 |
2 |
0 |
| VODI |
0 |
8 |
9 |
152 |
97 |
29 |
27 |
0 |
| ODI |
0 |
17 |
28 |
136 |
192 |
81 |
89 |
0 |
| CDI |
0 |
67 |
71 |
263 |
747 |
960 |
485 |
0 |
| VCDI |
0 |
224 |
135 |
432 |
1236 |
4427 |
15286 |
6564 |
|
Date: 2022-05-27:
| 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 |
90 |
77 |
68 |
3 |
0 |
0 |
0 |
| OW |
0 |
22 |
34 |
107 |
19 |
1 |
0 |
0 |
| VODI |
0 |
39 |
55 |
162 |
90 |
13 |
2 |
0 |
| ODI |
0 |
27 |
53 |
181 |
217 |
68 |
22 |
0 |
| CDI |
0 |
74 |
70 |
239 |
828 |
1449 |
529 |
0 |
| VCDI |
0 |
119 |
116 |
346 |
919 |
4610 |
17168 |
4265 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
91 |
41 |
62 |
6 |
0 |
0 |
0 |
| OW |
0 |
16 |
43 |
89 |
35 |
7 |
5 |
0 |
| VODI |
0 |
11 |
37 |
121 |
90 |
76 |
37 |
0 |
| ODI |
0 |
10 |
44 |
142 |
134 |
152 |
102 |
0 |
| CDI |
0 |
31 |
51 |
223 |
749 |
1018 |
476 |
0 |
| VCDI |
0 |
212 |
189 |
466 |
1062 |
4888 |
17101 |
4265 |
|
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