Validation of sea ice concentration - Asian sector
Bulletin date: 2023-05-18
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-05-12:
| 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 |
11 |
303 |
12 |
15 |
0 |
0 |
0 |
0 |
| OW |
0 |
37 |
3 |
19 |
11 |
0 |
0 |
0 |
| VODI |
0 |
29 |
5 |
4 |
15 |
4 |
0 |
0 |
| ODI |
0 |
19 |
8 |
7 |
20 |
21 |
20 |
0 |
| CDI |
0 |
5 |
17 |
47 |
91 |
215 |
140 |
18 |
| VCDI |
0 |
0 |
0 |
30 |
94 |
1434 |
12639 |
16789 |
|
...date precedes bulletin
|
Date: 2023-05-14:
| 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 |
315 |
15 |
23 |
0 |
0 |
0 |
0 |
| OW |
0 |
29 |
3 |
4 |
16 |
0 |
0 |
0 |
| VODI |
0 |
29 |
5 |
15 |
9 |
0 |
0 |
0 |
| ODI |
0 |
19 |
4 |
16 |
22 |
27 |
64 |
0 |
| CDI |
0 |
13 |
10 |
32 |
161 |
301 |
184 |
3 |
| VCDI |
0 |
1 |
8 |
37 |
131 |
2090 |
11750 |
16746 |
|
...date precedes bulletin
|
Date: 2023-05-16:
| 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 |
374 |
17 |
27 |
4 |
0 |
0 |
0 |
| OW |
0 |
19 |
11 |
18 |
10 |
0 |
0 |
0 |
| VODI |
0 |
11 |
8 |
28 |
41 |
5 |
0 |
0 |
| ODI |
0 |
8 |
4 |
23 |
81 |
47 |
35 |
0 |
| CDI |
0 |
1 |
7 |
28 |
147 |
544 |
255 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
176 |
1772 |
12146 |
16232 |
|
...date precedes bulletin
|
Date: 2023-05-18:
| 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 |
403 |
23 |
45 |
8 |
0 |
0 |
0 |
| OW |
0 |
27 |
2 |
33 |
21 |
0 |
0 |
0 |
| VODI |
0 |
18 |
7 |
42 |
78 |
0 |
0 |
0 |
| ODI |
0 |
13 |
8 |
18 |
124 |
14 |
2 |
0 |
| CDI |
0 |
3 |
9 |
40 |
311 |
415 |
180 |
0 |
| VCDI |
0 |
0 |
0 |
8 |
250 |
4714 |
11332 |
13934 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
391 |
19 |
45 |
9 |
0 |
0 |
0 |
| OW |
0 |
30 |
5 |
31 |
32 |
0 |
0 |
0 |
| VODI |
0 |
25 |
6 |
38 |
78 |
0 |
0 |
0 |
| ODI |
0 |
14 |
10 |
20 |
111 |
15 |
2 |
0 |
| CDI |
0 |
4 |
9 |
50 |
295 |
333 |
169 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
267 |
4795 |
11343 |
13934 |
|
Date: 2023-05-20:
| 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 |
412 |
25 |
43 |
10 |
0 |
0 |
0 |
| OW |
0 |
28 |
5 |
43 |
34 |
2 |
0 |
0 |
| VODI |
0 |
25 |
3 |
60 |
72 |
0 |
0 |
0 |
| ODI |
0 |
7 |
15 |
19 |
125 |
21 |
44 |
0 |
| CDI |
0 |
1 |
6 |
43 |
288 |
511 |
253 |
0 |
| VCDI |
0 |
0 |
0 |
34 |
534 |
3891 |
12199 |
13329 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
402 |
24 |
53 |
16 |
0 |
0 |
0 |
| OW |
0 |
27 |
3 |
35 |
33 |
2 |
0 |
0 |
| VODI |
0 |
31 |
5 |
54 |
72 |
0 |
0 |
0 |
| ODI |
0 |
12 |
14 |
19 |
116 |
16 |
45 |
0 |
| CDI |
0 |
1 |
8 |
51 |
288 |
439 |
264 |
0 |
| VCDI |
0 |
0 |
0 |
30 |
538 |
3968 |
12187 |
13329 |
|
Date: 2023-05-22:
| 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 |
524 |
36 |
60 |
8 |
1 |
0 |
0 |
| OW |
0 |
23 |
30 |
124 |
0 |
1 |
0 |
0 |
| VODI |
0 |
0 |
5 |
181 |
128 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
58 |
251 |
36 |
4 |
0 |
| CDI |
0 |
0 |
0 |
70 |
476 |
1304 |
99 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
283 |
3544 |
12853 |
11972 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
477 |
29 |
78 |
7 |
1 |
0 |
0 |
| OW |
0 |
37 |
17 |
70 |
8 |
0 |
0 |
0 |
| VODI |
0 |
25 |
5 |
117 |
34 |
0 |
0 |
0 |
| ODI |
0 |
7 |
15 |
48 |
115 |
15 |
0 |
0 |
| CDI |
0 |
1 |
5 |
107 |
413 |
512 |
111 |
0 |
| VCDI |
0 |
0 |
0 |
75 |
569 |
4367 |
12845 |
11972 |
|
Date: 2023-05-24:
| 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 |
605 |
79 |
122 |
10 |
0 |
0 |
0 |
| OW |
0 |
7 |
15 |
202 |
12 |
3 |
0 |
0 |
| VODI |
0 |
5 |
8 |
106 |
119 |
7 |
1 |
0 |
| ODI |
0 |
0 |
3 |
91 |
253 |
42 |
9 |
0 |
| CDI |
0 |
1 |
13 |
127 |
520 |
1045 |
191 |
0 |
| VCDI |
0 |
0 |
0 |
33 |
368 |
3688 |
13214 |
11183 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
540 |
42 |
78 |
9 |
0 |
0 |
0 |
| OW |
0 |
40 |
23 |
75 |
8 |
0 |
0 |
0 |
| VODI |
0 |
22 |
18 |
124 |
23 |
3 |
0 |
0 |
| ODI |
0 |
6 |
12 |
114 |
98 |
13 |
14 |
0 |
| CDI |
0 |
9 |
6 |
146 |
501 |
489 |
100 |
0 |
| VCDI |
0 |
1 |
17 |
144 |
643 |
4280 |
13301 |
11183 |
|
Date: 2023-05-26:
| 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 |
713 |
75 |
260 |
12 |
0 |
0 |
0 |
| OW |
0 |
19 |
20 |
138 |
0 |
4 |
0 |
0 |
| VODI |
0 |
11 |
9 |
149 |
92 |
12 |
0 |
0 |
| ODI |
0 |
6 |
8 |
100 |
272 |
74 |
3 |
0 |
| CDI |
0 |
20 |
24 |
188 |
752 |
999 |
107 |
0 |
| VCDI |
0 |
0 |
0 |
64 |
693 |
6391 |
15641 |
5226 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
611 |
39 |
102 |
11 |
0 |
0 |
0 |
| OW |
0 |
64 |
18 |
72 |
0 |
0 |
0 |
0 |
| VODI |
0 |
31 |
28 |
129 |
5 |
1 |
0 |
0 |
| ODI |
0 |
15 |
11 |
134 |
75 |
23 |
2 |
0 |
| CDI |
0 |
29 |
13 |
231 |
612 |
587 |
79 |
1 |
| VCDI |
0 |
19 |
27 |
231 |
1118 |
6869 |
15670 |
5225 |
|
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