Validation of sea ice concentration - Asian sector
Bulletin date: 2021-04-29
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-04-23:
| 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 |
118 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
66 |
10 |
35 |
1 |
0 |
0 |
0 |
| VODI |
0 |
48 |
6 |
87 |
75 |
6 |
0 |
0 |
| ODI |
0 |
27 |
4 |
25 |
120 |
14 |
17 |
0 |
| CDI |
0 |
15 |
3 |
37 |
221 |
250 |
199 |
49 |
| VCDI |
0 |
54 |
8 |
92 |
340 |
2424 |
9998 |
17733 |
|
...date precedes bulletin
|
Date: 2021-04-25:
| 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 |
85 |
2 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
48 |
7 |
16 |
4 |
0 |
0 |
0 |
| VODI |
0 |
75 |
4 |
78 |
63 |
2 |
0 |
0 |
| ODI |
0 |
19 |
7 |
30 |
143 |
23 |
4 |
0 |
| CDI |
0 |
7 |
1 |
38 |
227 |
329 |
109 |
18 |
| VCDI |
0 |
25 |
10 |
77 |
228 |
1465 |
10028 |
18907 |
|
...date precedes bulletin
|
Date: 2021-04-27:
| 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 |
100 |
6 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
28 |
9 |
75 |
2 |
0 |
0 |
0 |
| VODI |
0 |
0 |
2 |
73 |
75 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
20 |
163 |
39 |
1 |
0 |
| CDI |
0 |
0 |
0 |
7 |
261 |
739 |
240 |
9 |
| VCDI |
0 |
0 |
0 |
26 |
142 |
1731 |
9290 |
19040 |
|
...date precedes bulletin
|
Date: 2021-04-29:
| 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 |
49 |
5 |
23 |
0 |
0 |
0 |
0 |
| OW |
0 |
5 |
3 |
41 |
61 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
29 |
131 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
6 |
118 |
53 |
5 |
0 |
| CDI |
0 |
0 |
0 |
0 |
119 |
567 |
441 |
30 |
| VCDI |
0 |
0 |
0 |
0 |
171 |
1307 |
9922 |
18993 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
48 |
5 |
25 |
7 |
0 |
0 |
0 |
| OW |
0 |
6 |
3 |
44 |
65 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
25 |
127 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
5 |
109 |
40 |
3 |
0 |
| CDI |
0 |
0 |
0 |
0 |
123 |
519 |
450 |
29 |
| VCDI |
0 |
0 |
0 |
0 |
169 |
1370 |
9915 |
18994 |
|
Date: 2021-05-01:
| 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 |
58 |
5 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
22 |
5 |
75 |
7 |
0 |
0 |
0 |
| VODI |
0 |
4 |
4 |
75 |
111 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
14 |
92 |
57 |
13 |
0 |
| CDI |
0 |
0 |
0 |
2 |
160 |
637 |
325 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
234 |
1568 |
9822 |
18768 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
69 |
8 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
13 |
3 |
89 |
4 |
0 |
0 |
0 |
| VODI |
0 |
2 |
3 |
58 |
109 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
15 |
77 |
42 |
4 |
0 |
| CDI |
0 |
0 |
0 |
2 |
180 |
551 |
219 |
14 |
| VCDI |
0 |
0 |
0 |
0 |
234 |
1669 |
9937 |
18768 |
|
Date: 2021-05-03:
| 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 |
86 |
5 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
77 |
7 |
54 |
3 |
0 |
0 |
0 |
| VODI |
0 |
10 |
11 |
124 |
63 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
31 |
185 |
50 |
2 |
0 |
| CDI |
0 |
0 |
0 |
27 |
269 |
472 |
103 |
0 |
| VCDI |
0 |
0 |
0 |
40 |
178 |
2257 |
9679 |
18339 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
60 |
2 |
0 |
1 |
0 |
0 |
0 |
| OW |
0 |
46 |
9 |
33 |
2 |
0 |
0 |
0 |
| VODI |
0 |
43 |
2 |
125 |
58 |
3 |
0 |
0 |
| ODI |
0 |
18 |
4 |
18 |
116 |
45 |
4 |
0 |
| CDI |
0 |
6 |
6 |
29 |
276 |
264 |
157 |
5 |
| VCDI |
0 |
0 |
0 |
78 |
245 |
2470 |
9623 |
18334 |
|
Date: 2021-05-05:
| 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 |
0 |
114 |
4 |
14 |
0 |
0 |
0 |
0 |
| OW |
0 |
74 |
5 |
33 |
2 |
0 |
0 |
0 |
| VODI |
0 |
77 |
13 |
35 |
71 |
6 |
0 |
0 |
| ODI |
0 |
3 |
4 |
33 |
156 |
61 |
8 |
0 |
| CDI |
0 |
0 |
0 |
33 |
380 |
377 |
112 |
15 |
| VCDI |
0 |
0 |
0 |
31 |
148 |
2068 |
9951 |
18254 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
62 |
1 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
61 |
5 |
22 |
14 |
3 |
0 |
0 |
| VODI |
0 |
96 |
9 |
43 |
64 |
8 |
0 |
0 |
| ODI |
0 |
30 |
1 |
13 |
121 |
69 |
10 |
16 |
| CDI |
0 |
16 |
8 |
37 |
281 |
209 |
184 |
64 |
| VCDI |
0 |
3 |
2 |
63 |
277 |
2223 |
9877 |
18189 |
|
Date: 2021-05-07:
| 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 |
0 |
103 |
4 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
120 |
7 |
34 |
11 |
0 |
0 |
0 |
| VODI |
0 |
32 |
6 |
88 |
78 |
7 |
0 |
0 |
| ODI |
0 |
0 |
0 |
77 |
149 |
50 |
3 |
0 |
| CDI |
0 |
0 |
0 |
40 |
358 |
321 |
172 |
5 |
| VCDI |
0 |
0 |
0 |
18 |
288 |
2019 |
8679 |
19403 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
71 |
2 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
80 |
4 |
23 |
14 |
0 |
0 |
0 |
| VODI |
0 |
85 |
5 |
42 |
66 |
5 |
0 |
0 |
| ODI |
0 |
19 |
6 |
61 |
111 |
41 |
17 |
0 |
| CDI |
0 |
0 |
0 |
80 |
252 |
183 |
321 |
41 |
| VCDI |
0 |
0 |
0 |
59 |
441 |
2168 |
8516 |
19367 |
|
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