Validation of sea ice concentration - Asian sector
Bulletin date: 2024-05-23
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-05-17:
| 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 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
53 |
10 |
8 |
4 |
0 |
0 |
0 |
| VODI |
0 |
58 |
11 |
24 |
7 |
5 |
9 |
0 |
| ODI |
0 |
5 |
12 |
41 |
29 |
17 |
14 |
0 |
| CDI |
0 |
31 |
27 |
113 |
258 |
519 |
117 |
0 |
| VCDI |
0 |
21 |
17 |
172 |
337 |
1166 |
17099 |
11897 |
|
...date precedes bulletin
|
Date: 2024-05-19:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
50 |
6 |
2 |
6 |
2 |
0 |
0 |
| VODI |
0 |
76 |
16 |
24 |
22 |
7 |
8 |
0 |
| ODI |
0 |
14 |
10 |
34 |
10 |
9 |
16 |
0 |
| CDI |
0 |
34 |
18 |
122 |
322 |
533 |
319 |
4 |
| VCDI |
0 |
9 |
31 |
133 |
378 |
965 |
14707 |
14195 |
|
...date precedes bulletin
|
Date: 2024-05-21:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
122 |
12 |
6 |
4 |
3 |
0 |
0 |
| VODI |
0 |
45 |
16 |
93 |
35 |
12 |
7 |
0 |
| ODI |
0 |
31 |
26 |
51 |
135 |
36 |
30 |
0 |
| CDI |
0 |
3 |
14 |
120 |
383 |
763 |
219 |
1 |
| VCDI |
0 |
0 |
5 |
121 |
374 |
1608 |
16725 |
11082 |
|
...date precedes bulletin
|
Date: 2024-05-23:
| 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 |
1 |
3 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
92 |
9 |
13 |
9 |
3 |
2 |
0 |
| VODI |
0 |
40 |
24 |
98 |
36 |
14 |
13 |
0 |
| ODI |
0 |
37 |
36 |
80 |
142 |
39 |
37 |
5 |
| CDI |
0 |
1 |
8 |
127 |
399 |
962 |
500 |
32 |
| VCDI |
0 |
3 |
12 |
109 |
482 |
2427 |
14963 |
11322 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
1 |
3 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
82 |
8 |
12 |
10 |
6 |
2 |
0 |
| VODI |
0 |
38 |
25 |
80 |
28 |
10 |
11 |
0 |
| ODI |
0 |
34 |
17 |
64 |
160 |
45 |
39 |
6 |
| CDI |
0 |
16 |
26 |
160 |
367 |
913 |
464 |
31 |
| VCDI |
0 |
3 |
13 |
110 |
503 |
2471 |
14999 |
11322 |
|
Date: 2024-05-25:
| 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 |
10 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
101 |
15 |
12 |
7 |
1 |
1 |
0 |
| VODI |
0 |
31 |
33 |
82 |
36 |
6 |
3 |
3 |
| ODI |
0 |
11 |
14 |
136 |
144 |
36 |
55 |
11 |
| CDI |
0 |
10 |
26 |
157 |
551 |
1523 |
760 |
49 |
| VCDI |
0 |
10 |
27 |
146 |
490 |
3078 |
15417 |
9089 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
14 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
87 |
17 |
16 |
11 |
1 |
0 |
0 |
| VODI |
0 |
40 |
31 |
64 |
24 |
6 |
3 |
6 |
| ODI |
0 |
8 |
7 |
101 |
171 |
33 |
49 |
8 |
| CDI |
0 |
14 |
32 |
201 |
511 |
1455 |
870 |
54 |
| VCDI |
0 |
10 |
28 |
151 |
511 |
3149 |
15314 |
9084 |
|
Date: 2024-05-27:
| 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 |
71 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
90 |
26 |
20 |
4 |
0 |
1 |
0 |
| VODI |
0 |
37 |
37 |
83 |
34 |
12 |
11 |
0 |
| ODI |
0 |
24 |
28 |
197 |
270 |
81 |
48 |
0 |
| CDI |
0 |
40 |
42 |
131 |
585 |
1633 |
579 |
0 |
| VCDI |
0 |
2 |
15 |
114 |
410 |
3039 |
18679 |
5739 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
56 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
87 |
11 |
15 |
3 |
0 |
1 |
0 |
| VODI |
0 |
44 |
35 |
44 |
26 |
11 |
40 |
0 |
| ODI |
0 |
16 |
26 |
125 |
168 |
67 |
47 |
0 |
| CDI |
0 |
51 |
52 |
222 |
559 |
1520 |
1789 |
99 |
| VCDI |
0 |
10 |
24 |
139 |
547 |
3167 |
17441 |
5640 |
|
Date: 2024-05-29:
| 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 |
112 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
73 |
11 |
9 |
10 |
6 |
8 |
0 |
| VODI |
0 |
53 |
30 |
92 |
32 |
15 |
22 |
0 |
| ODI |
0 |
44 |
38 |
164 |
330 |
47 |
31 |
0 |
| CDI |
0 |
61 |
53 |
216 |
925 |
1868 |
232 |
0 |
| VCDI |
0 |
36 |
45 |
140 |
393 |
4234 |
19583 |
3169 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
96 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
68 |
7 |
8 |
7 |
6 |
3 |
0 |
| VODI |
0 |
40 |
27 |
70 |
25 |
16 |
24 |
0 |
| ODI |
0 |
47 |
36 |
115 |
204 |
48 |
39 |
0 |
| CDI |
0 |
88 |
58 |
274 |
910 |
2200 |
1658 |
218 |
| VCDI |
0 |
40 |
47 |
154 |
544 |
3900 |
18152 |
2951 |
|
Date: 2024-05-31:
| 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 |
122 |
3 |
3 |
0 |
2 |
2 |
0 |
| OW |
0 |
55 |
3 |
12 |
21 |
15 |
4 |
0 |
| VODI |
0 |
54 |
32 |
88 |
53 |
17 |
18 |
0 |
| ODI |
0 |
54 |
54 |
218 |
301 |
36 |
4 |
0 |
| CDI |
0 |
85 |
69 |
320 |
1135 |
2310 |
242 |
0 |
| VCDI |
0 |
81 |
41 |
165 |
505 |
3471 |
16251 |
6236 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
98 |
3 |
5 |
3 |
2 |
2 |
0 |
| OW |
0 |
74 |
8 |
11 |
15 |
7 |
2 |
0 |
| VODI |
0 |
28 |
32 |
88 |
55 |
46 |
5 |
0 |
| ODI |
0 |
70 |
29 |
142 |
191 |
73 |
52 |
0 |
| CDI |
0 |
100 |
83 |
370 |
1122 |
2395 |
2475 |
1275 |
| VCDI |
0 |
81 |
47 |
190 |
629 |
3328 |
13985 |
4961 |
|
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