Validation of sea ice concentration - Asian sector
Bulletin date: 2023-12-28
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-12-22:
| 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 |
21 |
327 |
7 |
2 |
0 |
0 |
0 |
0 |
| OW |
2 |
115 |
17 |
31 |
15 |
0 |
0 |
0 |
| VODI |
0 |
83 |
50 |
163 |
171 |
12 |
0 |
0 |
| ODI |
0 |
23 |
24 |
229 |
337 |
207 |
50 |
0 |
| CDI |
0 |
12 |
4 |
64 |
169 |
600 |
195 |
0 |
| VCDI |
0 |
8 |
16 |
94 |
129 |
996 |
8324 |
19585 |
|
...date precedes bulletin
|
Date: 2023-12-24:
| 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 |
4 |
257 |
1 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
84 |
5 |
7 |
3 |
0 |
0 |
0 |
| VODI |
0 |
91 |
31 |
118 |
136 |
21 |
0 |
0 |
| ODI |
0 |
46 |
31 |
108 |
318 |
202 |
45 |
0 |
| CDI |
0 |
11 |
12 |
88 |
191 |
427 |
438 |
10 |
| VCDI |
0 |
14 |
7 |
15 |
77 |
828 |
8042 |
20413 |
|
...date precedes bulletin
|
Date: 2023-12-26:
| 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 |
4 |
255 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
73 |
3 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
75 |
39 |
53 |
6 |
1 |
0 |
0 |
| ODI |
0 |
19 |
36 |
164 |
236 |
76 |
0 |
0 |
| CDI |
0 |
4 |
8 |
97 |
441 |
344 |
14 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
97 |
996 |
6232 |
22795 |
|
...date precedes bulletin
|
Date: 2023-12-28:
| 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 |
21 |
246 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
1 |
102 |
1 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
90 |
17 |
19 |
17 |
0 |
0 |
0 |
| ODI |
0 |
41 |
14 |
34 |
283 |
128 |
2 |
0 |
| CDI |
0 |
44 |
11 |
110 |
268 |
278 |
27 |
1 |
| VCDI |
0 |
71 |
28 |
76 |
199 |
812 |
5994 |
23147 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
22 |
252 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
101 |
4 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
90 |
13 |
20 |
11 |
0 |
0 |
0 |
| ODI |
0 |
47 |
12 |
24 |
284 |
115 |
1 |
0 |
| CDI |
0 |
41 |
14 |
83 |
233 |
300 |
25 |
1 |
| VCDI |
0 |
63 |
28 |
110 |
239 |
803 |
5997 |
23147 |
|
Date: 2023-12-30:
| 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 |
25 |
213 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
3 |
115 |
0 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
69 |
8 |
14 |
11 |
1 |
0 |
0 |
| ODI |
0 |
48 |
13 |
46 |
42 |
174 |
0 |
0 |
| CDI |
0 |
43 |
11 |
21 |
59 |
340 |
42 |
2 |
| VCDI |
0 |
59 |
29 |
98 |
185 |
1086 |
6410 |
22914 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
27 |
223 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
1 |
104 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
76 |
7 |
17 |
12 |
0 |
0 |
0 |
| ODI |
0 |
46 |
14 |
41 |
41 |
138 |
0 |
0 |
| CDI |
0 |
47 |
13 |
24 |
59 |
336 |
37 |
1 |
| VCDI |
0 |
51 |
27 |
98 |
185 |
1127 |
6415 |
22915 |
|
Date: 2024-01-01:
| 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 |
20 |
230 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
102 |
4 |
2 |
0 |
0 |
0 |
0 |
| VODI |
0 |
30 |
27 |
48 |
12 |
0 |
0 |
0 |
| ODI |
0 |
9 |
9 |
41 |
48 |
11 |
1 |
0 |
| CDI |
0 |
4 |
3 |
38 |
122 |
204 |
25 |
0 |
| VCDI |
0 |
2 |
5 |
21 |
152 |
1278 |
6801 |
22833 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
20 |
186 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
95 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
49 |
13 |
7 |
1 |
0 |
0 |
0 |
| ODI |
0 |
29 |
14 |
41 |
9 |
2 |
0 |
0 |
| CDI |
0 |
13 |
16 |
73 |
118 |
84 |
21 |
0 |
| VCDI |
0 |
5 |
5 |
29 |
206 |
1407 |
6806 |
22833 |
|
Date: 2024-01-03:
| 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 |
262 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
69 |
2 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
60 |
7 |
24 |
11 |
0 |
0 |
0 |
| ODI |
0 |
34 |
7 |
15 |
21 |
11 |
0 |
0 |
| CDI |
0 |
27 |
17 |
52 |
121 |
169 |
17 |
1 |
| VCDI |
0 |
69 |
39 |
96 |
198 |
1461 |
7754 |
21538 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
188 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
71 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
59 |
5 |
7 |
0 |
0 |
0 |
0 |
| ODI |
0 |
47 |
2 |
11 |
11 |
6 |
0 |
0 |
| CDI |
0 |
72 |
20 |
63 |
91 |
111 |
26 |
4 |
| VCDI |
0 |
84 |
45 |
106 |
249 |
1524 |
7745 |
21535 |
|
Date: 2024-01-05:
| 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 |
173 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
66 |
1 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
63 |
5 |
4 |
0 |
0 |
0 |
0 |
| ODI |
0 |
20 |
21 |
20 |
8 |
2 |
0 |
0 |
| CDI |
0 |
30 |
11 |
35 |
74 |
210 |
62 |
1 |
| VCDI |
0 |
105 |
33 |
90 |
138 |
1010 |
8643 |
21257 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
183 |
3 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
83 |
10 |
6 |
2 |
0 |
0 |
0 |
| VODI |
0 |
18 |
12 |
24 |
7 |
6 |
0 |
0 |
| ODI |
0 |
9 |
1 |
5 |
25 |
14 |
4 |
0 |
| CDI |
0 |
50 |
5 |
9 |
34 |
118 |
19 |
0 |
| VCDI |
0 |
114 |
40 |
102 |
152 |
1084 |
8682 |
21258 |
|
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