Validation of sea ice concentration - Asian sector
Bulletin date: 2023-03-02
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-02-24:
| 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 |
0 |
306 |
25 |
33 |
11 |
0 |
0 |
0 |
| OW |
0 |
42 |
5 |
6 |
3 |
0 |
0 |
0 |
| VODI |
0 |
47 |
12 |
11 |
4 |
0 |
0 |
0 |
| ODI |
0 |
42 |
9 |
22 |
27 |
19 |
0 |
0 |
| CDI |
0 |
64 |
11 |
27 |
82 |
94 |
43 |
1 |
| VCDI |
0 |
131 |
69 |
125 |
225 |
1132 |
11722 |
17732 |
|
...date precedes bulletin
|
Date: 2023-02-26:
| 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 |
0 |
333 |
32 |
9 |
1 |
0 |
0 |
0 |
| OW |
0 |
52 |
1 |
4 |
7 |
0 |
0 |
0 |
| VODI |
0 |
52 |
7 |
3 |
6 |
9 |
0 |
0 |
| ODI |
0 |
55 |
6 |
8 |
3 |
14 |
0 |
0 |
| CDI |
0 |
63 |
8 |
8 |
28 |
70 |
115 |
4 |
| VCDI |
0 |
188 |
119 |
132 |
137 |
663 |
11320 |
18625 |
|
...date precedes bulletin
|
Date: 2023-02-28:
| 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 |
21 |
390 |
6 |
8 |
1 |
0 |
0 |
0 |
| OW |
0 |
169 |
0 |
3 |
8 |
0 |
0 |
0 |
| VODI |
0 |
182 |
8 |
4 |
7 |
7 |
0 |
0 |
| ODI |
0 |
71 |
7 |
16 |
4 |
10 |
0 |
0 |
| CDI |
0 |
79 |
5 |
14 |
22 |
98 |
76 |
8 |
| VCDI |
0 |
143 |
89 |
139 |
177 |
564 |
8305 |
21441 |
|
...date precedes bulletin
|
Date: 2023-03-02:
| 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 |
343 |
21 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
11 |
7 |
3 |
0 |
0 |
0 |
| VODI |
0 |
164 |
19 |
9 |
9 |
1 |
0 |
0 |
| ODI |
0 |
106 |
24 |
26 |
7 |
10 |
0 |
0 |
| CDI |
0 |
41 |
33 |
45 |
24 |
39 |
71 |
1 |
| VCDI |
0 |
19 |
79 |
178 |
137 |
455 |
8320 |
21830 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
341 |
21 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
44 |
12 |
5 |
3 |
0 |
0 |
0 |
| VODI |
0 |
147 |
15 |
6 |
9 |
1 |
0 |
0 |
| ODI |
0 |
114 |
17 |
17 |
5 |
6 |
0 |
0 |
| CDI |
0 |
57 |
42 |
51 |
19 |
41 |
77 |
1 |
| VCDI |
0 |
17 |
80 |
183 |
144 |
457 |
8314 |
21830 |
|
Date: 2023-03-04:
| 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 |
0 |
282 |
22 |
10 |
1 |
0 |
0 |
0 |
| OW |
0 |
45 |
2 |
2 |
3 |
0 |
0 |
0 |
| VODI |
0 |
52 |
2 |
1 |
8 |
4 |
0 |
0 |
| ODI |
0 |
55 |
5 |
5 |
4 |
8 |
0 |
0 |
| CDI |
0 |
122 |
22 |
28 |
23 |
47 |
52 |
1 |
| VCDI |
0 |
30 |
54 |
173 |
264 |
805 |
10765 |
19185 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
287 |
22 |
9 |
1 |
0 |
0 |
0 |
| OW |
0 |
39 |
2 |
3 |
4 |
0 |
0 |
0 |
| VODI |
0 |
51 |
2 |
1 |
7 |
3 |
0 |
0 |
| ODI |
0 |
57 |
4 |
7 |
2 |
6 |
0 |
0 |
| CDI |
0 |
123 |
18 |
15 |
19 |
53 |
45 |
0 |
| VCDI |
0 |
29 |
59 |
184 |
270 |
802 |
10772 |
19186 |
|
Date: 2023-03-06:
| 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 |
257 |
16 |
15 |
14 |
4 |
0 |
0 |
| OW |
0 |
26 |
8 |
8 |
11 |
7 |
0 |
0 |
| VODI |
0 |
20 |
15 |
7 |
4 |
11 |
1 |
0 |
| ODI |
0 |
10 |
14 |
16 |
5 |
4 |
4 |
0 |
| CDI |
0 |
17 |
36 |
48 |
23 |
12 |
10 |
3 |
| VCDI |
0 |
10 |
10 |
61 |
216 |
501 |
10680 |
19978 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
229 |
16 |
18 |
19 |
5 |
0 |
0 |
| OW |
0 |
31 |
3 |
6 |
6 |
8 |
0 |
0 |
| VODI |
0 |
28 |
11 |
3 |
5 |
7 |
0 |
0 |
| ODI |
0 |
13 |
8 |
4 |
2 |
5 |
1 |
0 |
| CDI |
0 |
14 |
11 |
13 |
2 |
12 |
26 |
10 |
| VCDI |
0 |
25 |
50 |
111 |
239 |
502 |
10668 |
19971 |
|
Date: 2023-03-08:
| 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 |
135 |
117 |
21 |
12 |
0 |
0 |
0 |
| OW |
0 |
26 |
10 |
4 |
12 |
6 |
0 |
0 |
| VODI |
0 |
28 |
8 |
7 |
7 |
15 |
0 |
0 |
| ODI |
0 |
9 |
14 |
9 |
2 |
6 |
0 |
0 |
| CDI |
0 |
0 |
21 |
16 |
9 |
27 |
50 |
3 |
| VCDI |
0 |
1 |
14 |
95 |
197 |
418 |
10218 |
20565 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
133 |
121 |
18 |
8 |
0 |
0 |
0 |
| OW |
0 |
31 |
4 |
8 |
15 |
5 |
0 |
0 |
| VODI |
0 |
21 |
10 |
7 |
7 |
14 |
0 |
0 |
| ODI |
0 |
9 |
15 |
3 |
4 |
6 |
0 |
0 |
| CDI |
0 |
3 |
12 |
11 |
6 |
26 |
41 |
0 |
| VCDI |
0 |
2 |
22 |
105 |
199 |
421 |
10227 |
20568 |
|
Date: 2023-03-10:
| 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 |
0 |
220 |
47 |
22 |
16 |
0 |
0 |
0 |
| OW |
0 |
36 |
8 |
17 |
14 |
2 |
0 |
0 |
| VODI |
0 |
41 |
9 |
11 |
11 |
7 |
0 |
0 |
| ODI |
0 |
27 |
13 |
6 |
12 |
6 |
2 |
0 |
| CDI |
0 |
37 |
10 |
7 |
13 |
52 |
52 |
1 |
| VCDI |
0 |
100 |
135 |
147 |
167 |
628 |
9507 |
20699 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
191 |
42 |
22 |
16 |
0 |
0 |
0 |
| OW |
0 |
36 |
6 |
14 |
12 |
2 |
0 |
0 |
| VODI |
0 |
34 |
7 |
13 |
10 |
4 |
0 |
0 |
| ODI |
0 |
24 |
7 |
4 |
5 |
7 |
3 |
0 |
| CDI |
0 |
26 |
8 |
3 |
4 |
18 |
55 |
48 |
| VCDI |
0 |
150 |
152 |
154 |
186 |
664 |
9503 |
20652 |
|
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