Validation of sea ice concentration - Asian sector
Bulletin date: 2024-05-02
Data source: OSI SAF N.H. multi-product sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-04-26:
| 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 |
12 |
92 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
4 |
39 |
0 |
0 |
1 |
0 |
0 |
0 |
| VODI |
0 |
3 |
0 |
6 |
13 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
24 |
15 |
0 |
1 |
0 |
| CDI |
0 |
0 |
0 |
63 |
23 |
0 |
30 |
5 |
| VCDI |
0 |
0 |
0 |
111 |
254 |
321 |
5053 |
27025 |
|
...date precedes bulletin
|
Date: 2024-04-28:
| 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 |
45 |
74 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
9 |
22 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
13 |
4 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
35 |
32 |
1 |
0 |
0 |
| CDI |
0 |
0 |
0 |
70 |
75 |
4 |
49 |
10 |
| VCDI |
0 |
0 |
0 |
7 |
160 |
352 |
7851 |
24281 |
|
...date precedes bulletin
|
Date: 2024-04-30:
| 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 |
93 |
57 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
7 |
3 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
62 |
11 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
51 |
22 |
6 |
1 |
0 |
| CDI |
0 |
0 |
0 |
36 |
167 |
100 |
44 |
3 |
| VCDI |
0 |
0 |
0 |
0 |
42 |
961 |
11185 |
20243 |
|
...date precedes bulletin
|
Date: 2024-05-02:
| 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 |
76 |
74 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
4 |
14 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
44 |
33 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
27 |
38 |
12 |
8 |
0 |
| CDI |
0 |
0 |
0 |
3 |
220 |
198 |
92 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
94 |
1835 |
13017 |
17304 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
76 |
73 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
0 |
7 |
14 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
40 |
33 |
2 |
1 |
0 |
| ODI |
0 |
0 |
0 |
27 |
34 |
12 |
10 |
0 |
| CDI |
0 |
0 |
0 |
4 |
225 |
207 |
157 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
93 |
1826 |
12949 |
17303 |
|
Date: 2024-05-04:
| 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 |
2 |
144 |
0 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
4 |
0 |
19 |
6 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
32 |
46 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
9 |
57 |
9 |
6 |
0 |
| CDI |
0 |
0 |
0 |
3 |
219 |
336 |
185 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
188 |
1461 |
13007 |
17358 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2 |
142 |
0 |
5 |
1 |
0 |
0 |
0 |
| OW |
0 |
6 |
0 |
14 |
7 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
33 |
45 |
3 |
0 |
0 |
| ODI |
0 |
0 |
0 |
11 |
54 |
12 |
11 |
0 |
| CDI |
0 |
0 |
0 |
2 |
220 |
353 |
249 |
5 |
| VCDI |
0 |
0 |
0 |
0 |
189 |
1441 |
12938 |
17353 |
|
Date: 2024-05-06:
| 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 |
146 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
4 |
0 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
2 |
45 |
9 |
0 |
0 |
| ODI |
0 |
0 |
0 |
3 |
156 |
16 |
3 |
0 |
| CDI |
0 |
0 |
0 |
12 |
235 |
453 |
64 |
5 |
| VCDI |
0 |
0 |
0 |
7 |
172 |
1186 |
13276 |
17301 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
148 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
2 |
0 |
0 |
16 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
1 |
76 |
6 |
0 |
0 |
| ODI |
0 |
0 |
0 |
2 |
74 |
16 |
3 |
1 |
| CDI |
0 |
0 |
0 |
5 |
209 |
400 |
409 |
16 |
| VCDI |
0 |
0 |
0 |
17 |
233 |
1242 |
12931 |
17289 |
|
Date: 2024-05-08:
| 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 |
148 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
2 |
0 |
5 |
4 |
2 |
0 |
0 |
| VODI |
0 |
0 |
0 |
38 |
24 |
6 |
2 |
0 |
| ODI |
0 |
0 |
0 |
36 |
128 |
14 |
10 |
0 |
| CDI |
0 |
0 |
0 |
11 |
264 |
311 |
152 |
8 |
| VCDI |
0 |
0 |
0 |
24 |
342 |
1687 |
12101 |
17777 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
150 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
9 |
10 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
32 |
54 |
7 |
3 |
4 |
| ODI |
0 |
0 |
0 |
33 |
69 |
18 |
5 |
10 |
| CDI |
0 |
0 |
0 |
12 |
251 |
276 |
187 |
51 |
| VCDI |
0 |
0 |
0 |
28 |
378 |
1719 |
12070 |
17720 |
|
Date: 2024-05-10:
| 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 |
70 |
78 |
0 |
8 |
0 |
0 |
0 |
0 |
| OW |
0 |
2 |
0 |
29 |
4 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
98 |
22 |
4 |
5 |
0 |
| ODI |
0 |
0 |
0 |
39 |
45 |
28 |
3 |
0 |
| CDI |
0 |
0 |
0 |
26 |
227 |
379 |
73 |
0 |
| VCDI |
0 |
0 |
0 |
54 |
409 |
2009 |
13003 |
16481 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
70 |
80 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
13 |
5 |
0 |
0 |
0 |
| VODI |
0 |
0 |
0 |
86 |
43 |
1 |
3 |
0 |
| ODI |
0 |
0 |
0 |
72 |
27 |
8 |
17 |
0 |
| CDI |
0 |
0 |
0 |
26 |
175 |
422 |
148 |
0 |
| VCDI |
0 |
0 |
0 |
57 |
457 |
1989 |
12916 |
16481 |
|
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