Validation of sea ice concentration - Asian sector
Bulletin date: 2023-02-23
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-02-17:
| 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 |
284 |
118 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
40 |
24 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
37 |
35 |
39 |
33 |
7 |
0 |
0 |
| ODI |
0 |
39 |
12 |
63 |
33 |
48 |
0 |
0 |
| CDI |
0 |
42 |
14 |
62 |
32 |
101 |
9 |
8 |
| VCDI |
0 |
158 |
60 |
308 |
339 |
1141 |
8214 |
20779 |
|
...date precedes bulletin
|
Date: 2023-02-19:
| 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 |
16 |
369 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
65 |
7 |
11 |
2 |
0 |
0 |
0 |
| VODI |
0 |
101 |
41 |
47 |
12 |
0 |
0 |
0 |
| ODI |
0 |
59 |
35 |
56 |
76 |
26 |
0 |
0 |
| CDI |
0 |
65 |
22 |
60 |
138 |
103 |
66 |
8 |
| VCDI |
0 |
180 |
114 |
323 |
489 |
1958 |
10537 |
17095 |
|
...date precedes bulletin
|
Date: 2023-02-21:
| 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 |
387 |
8 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
44 |
5 |
25 |
10 |
0 |
0 |
0 |
| VODI |
0 |
59 |
15 |
92 |
32 |
4 |
0 |
0 |
| ODI |
0 |
65 |
30 |
88 |
116 |
38 |
1 |
0 |
| CDI |
0 |
52 |
21 |
73 |
136 |
100 |
49 |
10 |
| VCDI |
0 |
10 |
53 |
204 |
433 |
1007 |
10483 |
18427 |
|
...date precedes bulletin
|
Date: 2023-02-23:
| 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 |
303 |
28 |
27 |
18 |
0 |
0 |
0 |
| OW |
0 |
39 |
9 |
9 |
1 |
0 |
0 |
0 |
| VODI |
0 |
45 |
5 |
32 |
11 |
0 |
0 |
0 |
| ODI |
0 |
43 |
6 |
41 |
53 |
26 |
0 |
0 |
| CDI |
0 |
68 |
13 |
26 |
150 |
164 |
32 |
1 |
| VCDI |
0 |
97 |
66 |
122 |
211 |
878 |
9266 |
20292 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
307 |
31 |
28 |
18 |
0 |
0 |
0 |
| OW |
0 |
37 |
6 |
11 |
1 |
0 |
0 |
0 |
| VODI |
0 |
41 |
4 |
21 |
11 |
0 |
0 |
0 |
| ODI |
0 |
37 |
7 |
33 |
27 |
15 |
0 |
0 |
| CDI |
0 |
59 |
8 |
42 |
129 |
136 |
30 |
1 |
| VCDI |
0 |
114 |
71 |
122 |
258 |
917 |
9268 |
20292 |
|
Date: 2023-02-25:
| 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 |
305 |
30 |
32 |
6 |
0 |
0 |
0 |
| OW |
0 |
37 |
1 |
9 |
9 |
0 |
0 |
0 |
| VODI |
0 |
46 |
6 |
1 |
10 |
3 |
0 |
0 |
| ODI |
0 |
46 |
4 |
6 |
13 |
26 |
3 |
0 |
| CDI |
0 |
55 |
8 |
12 |
30 |
112 |
82 |
5 |
| VCDI |
0 |
165 |
95 |
145 |
155 |
867 |
12041 |
17717 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
305 |
30 |
33 |
7 |
0 |
0 |
0 |
| OW |
0 |
30 |
1 |
8 |
10 |
0 |
0 |
0 |
| VODI |
0 |
50 |
6 |
1 |
8 |
3 |
0 |
0 |
| ODI |
0 |
41 |
4 |
5 |
7 |
22 |
4 |
0 |
| CDI |
0 |
52 |
8 |
5 |
25 |
98 |
81 |
6 |
| VCDI |
0 |
176 |
95 |
153 |
166 |
885 |
12041 |
17716 |
|
Date: 2023-02-27:
| 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 |
483 |
14 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
141 |
0 |
6 |
7 |
0 |
0 |
0 |
| VODI |
0 |
74 |
19 |
13 |
8 |
7 |
0 |
0 |
| ODI |
0 |
60 |
11 |
19 |
24 |
19 |
3 |
0 |
| CDI |
0 |
60 |
33 |
12 |
40 |
99 |
68 |
2 |
| VCDI |
0 |
42 |
114 |
137 |
191 |
781 |
8976 |
20610 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
351 |
14 |
10 |
2 |
0 |
0 |
0 |
| OW |
0 |
59 |
0 |
4 |
8 |
1 |
0 |
0 |
| VODI |
0 |
70 |
1 |
3 |
5 |
7 |
0 |
0 |
| ODI |
0 |
60 |
2 |
4 |
2 |
12 |
4 |
0 |
| CDI |
0 |
65 |
16 |
7 |
30 |
73 |
53 |
30 |
| VCDI |
0 |
255 |
158 |
168 |
223 |
813 |
8990 |
20582 |
|
Date: 2023-03-01:
| 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 |
0 |
364 |
24 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
68 |
20 |
7 |
4 |
0 |
0 |
0 |
| VODI |
0 |
136 |
98 |
24 |
10 |
0 |
0 |
0 |
| ODI |
0 |
21 |
48 |
36 |
24 |
5 |
0 |
0 |
| CDI |
0 |
40 |
20 |
44 |
33 |
57 |
26 |
24 |
| VCDI |
0 |
63 |
117 |
160 |
162 |
780 |
8173 |
21489 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
332 |
24 |
10 |
2 |
0 |
0 |
0 |
| OW |
0 |
51 |
8 |
4 |
5 |
0 |
0 |
0 |
| VODI |
0 |
55 |
21 |
8 |
12 |
0 |
0 |
0 |
| ODI |
0 |
49 |
21 |
7 |
19 |
6 |
3 |
0 |
| CDI |
0 |
41 |
39 |
14 |
22 |
105 |
42 |
0 |
| VCDI |
0 |
164 |
214 |
233 |
173 |
731 |
8154 |
21513 |
|
Date: 2023-03-03:
| 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 |
0 |
324 |
18 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
48 |
2 |
3 |
5 |
0 |
0 |
0 |
| VODI |
0 |
69 |
6 |
4 |
7 |
2 |
0 |
0 |
| ODI |
0 |
165 |
9 |
17 |
2 |
7 |
1 |
0 |
| CDI |
0 |
41 |
52 |
43 |
22 |
30 |
94 |
0 |
| VCDI |
0 |
27 |
52 |
170 |
186 |
525 |
9927 |
20219 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
294 |
15 |
7 |
2 |
0 |
0 |
0 |
| OW |
0 |
55 |
4 |
1 |
5 |
0 |
0 |
0 |
| VODI |
0 |
45 |
3 |
2 |
4 |
6 |
0 |
0 |
| ODI |
0 |
55 |
3 |
13 |
2 |
13 |
23 |
0 |
| CDI |
0 |
75 |
9 |
18 |
11 |
18 |
87 |
3 |
| VCDI |
0 |
150 |
105 |
201 |
198 |
527 |
9912 |
20216 |
|
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