Validation of sea ice concentration - Asian sector
Bulletin date: 2021-05-06
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2021-04-30:
| 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 |
0 |
57 |
5 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
11 |
2 |
75 |
19 |
0 |
0 |
0 |
| VODI |
0 |
0 |
3 |
51 |
131 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
20 |
95 |
46 |
30 |
0 |
| CDI |
0 |
0 |
0 |
1 |
203 |
640 |
340 |
4 |
| VCDI |
0 |
0 |
0 |
0 |
166 |
1597 |
10601 |
17969 |
|
...date precedes bulletin
|
Date: 2021-05-02:
| 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 |
47 |
4 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
55 |
5 |
34 |
7 |
0 |
0 |
0 |
| VODI |
0 |
39 |
4 |
72 |
122 |
2 |
0 |
0 |
| ODI |
0 |
8 |
6 |
33 |
92 |
33 |
4 |
0 |
| CDI |
0 |
0 |
1 |
32 |
232 |
291 |
156 |
6 |
| VCDI |
0 |
0 |
0 |
55 |
217 |
2290 |
10021 |
18207 |
|
...date precedes bulletin
|
Date: 2021-05-04:
| 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 |
126 |
7 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
53 |
4 |
48 |
1 |
0 |
0 |
0 |
| VODI |
0 |
53 |
13 |
67 |
62 |
11 |
0 |
0 |
| ODI |
0 |
6 |
1 |
31 |
150 |
66 |
8 |
0 |
| CDI |
0 |
5 |
4 |
32 |
269 |
465 |
87 |
78 |
| VCDI |
0 |
0 |
0 |
45 |
190 |
2491 |
10459 |
17241 |
|
...date precedes bulletin
|
Date: 2021-05-06:
| 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 |
99 |
7 |
10 |
0 |
0 |
0 |
0 |
| OW |
0 |
93 |
6 |
24 |
4 |
0 |
0 |
0 |
| VODI |
0 |
59 |
12 |
47 |
105 |
1 |
0 |
0 |
| ODI |
0 |
0 |
1 |
32 |
190 |
47 |
8 |
0 |
| CDI |
0 |
0 |
0 |
35 |
358 |
359 |
140 |
8 |
| VCDI |
0 |
0 |
0 |
15 |
198 |
1859 |
9827 |
18538 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
105 |
7 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
70 |
6 |
21 |
0 |
0 |
0 |
0 |
| VODI |
0 |
76 |
12 |
45 |
81 |
1 |
0 |
0 |
| ODI |
0 |
0 |
1 |
38 |
180 |
44 |
9 |
0 |
| CDI |
0 |
0 |
0 |
35 |
391 |
386 |
136 |
3 |
| VCDI |
0 |
0 |
0 |
15 |
203 |
1835 |
9830 |
18543 |
|
Date: 2021-05-08:
| 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 |
126 |
0 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
142 |
3 |
43 |
14 |
0 |
0 |
0 |
| VODI |
0 |
23 |
8 |
101 |
60 |
12 |
0 |
0 |
| ODI |
0 |
0 |
0 |
79 |
157 |
30 |
14 |
0 |
| CDI |
0 |
0 |
0 |
57 |
368 |
278 |
264 |
3 |
| VCDI |
0 |
0 |
0 |
14 |
383 |
1941 |
8363 |
19596 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
128 |
0 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
95 |
2 |
42 |
10 |
0 |
0 |
0 |
| VODI |
0 |
68 |
8 |
87 |
50 |
11 |
0 |
0 |
| ODI |
0 |
0 |
1 |
94 |
136 |
31 |
9 |
0 |
| CDI |
0 |
0 |
0 |
62 |
411 |
276 |
283 |
2 |
| VCDI |
0 |
0 |
0 |
8 |
375 |
1943 |
8349 |
19597 |
|
Date: 2021-05-10:
| 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 |
350 |
1 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
25 |
5 |
60 |
24 |
0 |
0 |
0 |
| VODI |
0 |
19 |
3 |
184 |
96 |
7 |
0 |
0 |
| ODI |
0 |
12 |
3 |
65 |
279 |
33 |
0 |
0 |
| CDI |
0 |
1 |
4 |
51 |
520 |
347 |
61 |
7 |
| VCDI |
0 |
0 |
0 |
1 |
221 |
2843 |
10402 |
16457 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
189 |
0 |
15 |
6 |
0 |
0 |
0 |
| OW |
0 |
81 |
2 |
49 |
24 |
0 |
0 |
0 |
| VODI |
0 |
85 |
5 |
105 |
55 |
7 |
0 |
0 |
| ODI |
0 |
30 |
2 |
89 |
172 |
26 |
4 |
0 |
| CDI |
0 |
21 |
4 |
64 |
459 |
218 |
223 |
19 |
| VCDI |
0 |
1 |
3 |
40 |
424 |
2979 |
10236 |
16445 |
|
Date: 2021-05-12:
| 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 |
346 |
0 |
19 |
5 |
0 |
0 |
0 |
| OW |
0 |
52 |
1 |
47 |
70 |
1 |
0 |
0 |
| VODI |
0 |
42 |
5 |
58 |
209 |
14 |
0 |
0 |
| ODI |
0 |
15 |
5 |
53 |
261 |
117 |
18 |
0 |
| CDI |
0 |
13 |
3 |
66 |
609 |
483 |
155 |
4 |
| VCDI |
0 |
0 |
0 |
71 |
603 |
3691 |
7793 |
17253 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
292 |
1 |
11 |
17 |
0 |
0 |
0 |
| OW |
0 |
84 |
2 |
39 |
52 |
0 |
0 |
0 |
| VODI |
0 |
42 |
3 |
61 |
143 |
9 |
0 |
0 |
| ODI |
0 |
29 |
4 |
57 |
281 |
56 |
11 |
0 |
| CDI |
0 |
16 |
3 |
34 |
568 |
302 |
166 |
24 |
| VCDI |
0 |
5 |
1 |
112 |
696 |
3939 |
7789 |
17233 |
|
Date: 2021-05-14:
| 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 |
259 |
4 |
24 |
8 |
0 |
0 |
0 |
| OW |
0 |
21 |
3 |
54 |
85 |
1 |
0 |
0 |
| VODI |
0 |
19 |
2 |
92 |
228 |
19 |
0 |
0 |
| ODI |
0 |
14 |
5 |
106 |
290 |
130 |
14 |
0 |
| CDI |
0 |
8 |
4 |
160 |
455 |
548 |
277 |
8 |
| VCDI |
0 |
0 |
0 |
97 |
731 |
3744 |
9789 |
14883 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
235 |
5 |
19 |
22 |
0 |
0 |
0 |
| OW |
0 |
45 |
3 |
53 |
69 |
0 |
0 |
0 |
| VODI |
0 |
22 |
2 |
75 |
146 |
9 |
0 |
0 |
| ODI |
0 |
15 |
5 |
62 |
328 |
52 |
9 |
0 |
| CDI |
0 |
0 |
0 |
120 |
468 |
591 |
356 |
19 |
| VCDI |
0 |
4 |
3 |
204 |
764 |
3790 |
9715 |
14872 |
|
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