Validation of sea ice concentration - Asian sector
Bulletin date: 2024-05-23
Data source: OSI SAF N.H. multi-product 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 |
150 |
1 |
1 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
30 |
18 |
23 |
3 |
0 |
0 |
0 |
| VODI |
0 |
16 |
18 |
53 |
21 |
3 |
5 |
0 |
| ODI |
0 |
1 |
5 |
55 |
43 |
19 |
7 |
0 |
| CDI |
0 |
0 |
0 |
88 |
384 |
578 |
75 |
17 |
| VCDI |
0 |
0 |
0 |
29 |
512 |
1427 |
9927 |
19586 |
|
...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 |
150 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
32 |
16 |
13 |
4 |
0 |
0 |
0 |
| VODI |
0 |
36 |
23 |
76 |
14 |
3 |
5 |
0 |
| ODI |
0 |
6 |
9 |
40 |
24 |
14 |
11 |
0 |
| CDI |
0 |
0 |
0 |
95 |
412 |
674 |
222 |
21 |
| VCDI |
0 |
0 |
0 |
34 |
477 |
1359 |
10653 |
18673 |
|
...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 |
150 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
80 |
33 |
35 |
3 |
0 |
0 |
0 |
| VODI |
0 |
12 |
21 |
144 |
26 |
11 |
0 |
0 |
| ODI |
0 |
0 |
0 |
86 |
190 |
26 |
14 |
5 |
| CDI |
0 |
0 |
0 |
39 |
516 |
855 |
137 |
40 |
| VCDI |
0 |
0 |
0 |
0 |
449 |
1507 |
11921 |
16796 |
|
...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 |
150 |
0 |
0 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
51 |
17 |
54 |
3 |
1 |
0 |
0 |
| VODI |
0 |
13 |
21 |
142 |
39 |
14 |
6 |
0 |
| ODI |
0 |
0 |
0 |
102 |
230 |
42 |
23 |
3 |
| CDI |
0 |
0 |
0 |
38 |
521 |
1155 |
395 |
37 |
| VCDI |
0 |
0 |
0 |
0 |
529 |
2238 |
13395 |
13871 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
2 |
0 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
46 |
12 |
51 |
3 |
2 |
0 |
0 |
| VODI |
0 |
16 |
26 |
111 |
28 |
14 |
6 |
0 |
| ODI |
0 |
0 |
0 |
92 |
225 |
39 |
26 |
4 |
| CDI |
0 |
0 |
0 |
81 |
522 |
1109 |
344 |
35 |
| VCDI |
0 |
0 |
0 |
0 |
544 |
2286 |
13443 |
13872 |
|
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 |
150 |
5 |
1 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
49 |
29 |
57 |
3 |
2 |
0 |
0 |
| VODI |
0 |
13 |
12 |
106 |
71 |
8 |
0 |
3 |
| ODI |
0 |
0 |
0 |
80 |
261 |
64 |
32 |
8 |
| CDI |
0 |
0 |
0 |
33 |
586 |
1940 |
597 |
66 |
| VCDI |
0 |
0 |
0 |
0 |
536 |
2963 |
13695 |
11720 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
9 |
1 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
37 |
27 |
63 |
7 |
2 |
0 |
0 |
| VODI |
0 |
21 |
14 |
83 |
57 |
10 |
2 |
3 |
| ODI |
0 |
0 |
0 |
64 |
247 |
58 |
32 |
7 |
| CDI |
0 |
0 |
0 |
66 |
596 |
1823 |
707 |
94 |
| VCDI |
0 |
0 |
0 |
0 |
550 |
3084 |
13583 |
11693 |
|
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 |
150 |
73 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
62 |
35 |
50 |
6 |
0 |
0 |
0 |
| VODI |
0 |
6 |
0 |
139 |
86 |
6 |
4 |
0 |
| ODI |
0 |
0 |
1 |
85 |
506 |
60 |
27 |
0 |
| CDI |
0 |
0 |
0 |
59 |
665 |
2100 |
329 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
369 |
2736 |
16817 |
8725 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
54 |
3 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
55 |
21 |
45 |
3 |
0 |
1 |
0 |
| VODI |
0 |
30 |
11 |
56 |
69 |
16 |
18 |
0 |
| ODI |
0 |
2 |
0 |
102 |
291 |
61 |
55 |
0 |
| CDI |
0 |
0 |
1 |
109 |
738 |
1844 |
1429 |
322 |
| VCDI |
0 |
0 |
0 |
18 |
531 |
2981 |
15674 |
8403 |
|
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 |
150 |
101 |
9 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
47 |
12 |
38 |
24 |
4 |
1 |
0 |
| VODI |
0 |
9 |
8 |
116 |
113 |
24 |
10 |
0 |
| ODI |
0 |
0 |
0 |
119 |
525 |
57 |
11 |
0 |
| CDI |
0 |
0 |
0 |
70 |
1200 |
2089 |
122 |
3 |
| VCDI |
0 |
0 |
0 |
39 |
617 |
3822 |
15208 |
8545 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
87 |
5 |
9 |
0 |
0 |
0 |
0 |
| OW |
0 |
39 |
10 |
37 |
15 |
1 |
1 |
0 |
| VODI |
0 |
20 |
4 |
76 |
86 |
29 |
9 |
0 |
| ODI |
0 |
9 |
5 |
88 |
347 |
72 |
20 |
3 |
| CDI |
0 |
2 |
5 |
131 |
1237 |
2434 |
1308 |
434 |
| VCDI |
0 |
0 |
0 |
44 |
794 |
3460 |
14014 |
8111 |
|
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 |
150 |
102 |
14 |
13 |
1 |
4 |
0 |
0 |
| OW |
0 |
40 |
8 |
34 |
27 |
9 |
0 |
0 |
| VODI |
0 |
6 |
14 |
120 |
147 |
24 |
2 |
0 |
| ODI |
0 |
0 |
0 |
183 |
497 |
28 |
3 |
0 |
| CDI |
0 |
0 |
0 |
149 |
1660 |
2327 |
140 |
0 |
| VCDI |
0 |
0 |
0 |
111 |
801 |
3371 |
13362 |
9749 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
150 |
89 |
5 |
16 |
2 |
4 |
0 |
0 |
| OW |
0 |
37 |
11 |
50 |
17 |
10 |
0 |
0 |
| VODI |
0 |
8 |
7 |
96 |
123 |
49 |
3 |
0 |
| ODI |
0 |
14 |
6 |
123 |
350 |
80 |
32 |
0 |
| CDI |
0 |
0 |
7 |
213 |
1623 |
2375 |
2068 |
1670 |
| VCDI |
0 |
0 |
0 |
112 |
1018 |
3245 |
11404 |
8079 |
|
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