Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-15
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-02-09:
| 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 |
239 |
34 |
29 |
0 |
0 |
0 |
0 |
| OW |
0 |
53 |
2 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
60 |
4 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
67 |
0 |
1 |
9 |
26 |
1 |
0 |
| CDI |
0 |
176 |
33 |
34 |
40 |
124 |
44 |
0 |
| VCDI |
0 |
51 |
32 |
168 |
443 |
1808 |
7810 |
20794 |
|
...date precedes bulletin
|
Date: 2024-02-11:
| 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 |
22 |
47 |
40 |
0 |
0 |
0 |
| OW |
0 |
39 |
1 |
0 |
3 |
0 |
0 |
0 |
| VODI |
0 |
41 |
4 |
4 |
1 |
0 |
0 |
0 |
| ODI |
0 |
42 |
8 |
7 |
2 |
0 |
0 |
0 |
| CDI |
0 |
91 |
6 |
6 |
42 |
80 |
12 |
0 |
| VCDI |
0 |
101 |
34 |
116 |
427 |
1955 |
7745 |
21033 |
|
...date precedes bulletin
|
Date: 2024-02-13:
| 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 |
219 |
24 |
37 |
29 |
0 |
0 |
0 |
| OW |
0 |
41 |
5 |
13 |
14 |
1 |
0 |
0 |
| VODI |
0 |
97 |
7 |
24 |
9 |
0 |
0 |
0 |
| ODI |
0 |
77 |
27 |
41 |
2 |
0 |
0 |
0 |
| CDI |
0 |
4 |
9 |
53 |
40 |
8 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
57 |
230 |
1502 |
6958 |
22554 |
|
...date precedes bulletin
|
Date: 2024-02-15:
| 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 |
263 |
16 |
11 |
6 |
0 |
0 |
0 |
| OW |
0 |
55 |
9 |
17 |
2 |
0 |
0 |
0 |
| VODI |
0 |
82 |
0 |
13 |
0 |
0 |
0 |
0 |
| ODI |
0 |
159 |
11 |
4 |
0 |
0 |
0 |
0 |
| CDI |
0 |
39 |
15 |
48 |
18 |
0 |
2 |
0 |
| VCDI |
0 |
14 |
17 |
77 |
232 |
1291 |
7808 |
21873 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
268 |
18 |
13 |
7 |
0 |
0 |
0 |
| OW |
0 |
64 |
5 |
17 |
1 |
0 |
0 |
0 |
| VODI |
0 |
92 |
2 |
11 |
0 |
0 |
0 |
0 |
| ODI |
0 |
147 |
14 |
9 |
0 |
0 |
0 |
0 |
| CDI |
0 |
31 |
12 |
37 |
18 |
0 |
3 |
0 |
| VCDI |
0 |
10 |
17 |
83 |
232 |
1291 |
7807 |
21873 |
|
Date: 2024-02-17:
| 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 |
298 |
5 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
109 |
7 |
6 |
0 |
0 |
0 |
0 |
| VODI |
0 |
124 |
5 |
5 |
0 |
0 |
0 |
0 |
| ODI |
0 |
162 |
1 |
1 |
0 |
0 |
0 |
0 |
| CDI |
0 |
143 |
22 |
21 |
41 |
52 |
3 |
8 |
| VCDI |
0 |
130 |
75 |
188 |
263 |
1224 |
8843 |
20345 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
316 |
6 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
91 |
6 |
7 |
0 |
0 |
0 |
0 |
| VODI |
0 |
128 |
5 |
3 |
0 |
0 |
0 |
0 |
| ODI |
0 |
158 |
2 |
1 |
1 |
0 |
0 |
0 |
| CDI |
0 |
123 |
22 |
15 |
43 |
50 |
3 |
6 |
| VCDI |
0 |
150 |
74 |
194 |
260 |
1226 |
8843 |
20347 |
|
Date: 2024-02-19:
| 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 |
473 |
15 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
141 |
33 |
37 |
2 |
0 |
0 |
0 |
| VODI |
0 |
91 |
9 |
63 |
1 |
0 |
0 |
0 |
| ODI |
0 |
34 |
9 |
47 |
16 |
9 |
0 |
0 |
| CDI |
0 |
39 |
11 |
40 |
31 |
69 |
39 |
8 |
| VCDI |
0 |
60 |
54 |
192 |
242 |
1008 |
10565 |
18739 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
255 |
10 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
69 |
7 |
6 |
2 |
0 |
0 |
0 |
| VODI |
0 |
95 |
5 |
7 |
0 |
0 |
0 |
0 |
| ODI |
0 |
164 |
11 |
4 |
0 |
11 |
0 |
0 |
| CDI |
0 |
76 |
20 |
74 |
18 |
43 |
38 |
9 |
| VCDI |
0 |
179 |
78 |
291 |
272 |
1032 |
10566 |
18738 |
|
Date: 2024-02-21:
| 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 |
316 |
12 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
49 |
4 |
12 |
4 |
0 |
0 |
0 |
| VODI |
0 |
61 |
3 |
7 |
0 |
0 |
0 |
0 |
| ODI |
0 |
107 |
20 |
31 |
36 |
2 |
0 |
0 |
| CDI |
0 |
24 |
23 |
43 |
70 |
49 |
49 |
6 |
| VCDI |
0 |
26 |
27 |
65 |
393 |
1035 |
9379 |
20222 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
216 |
6 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
68 |
6 |
10 |
1 |
0 |
0 |
0 |
| VODI |
0 |
65 |
6 |
12 |
3 |
0 |
0 |
0 |
| ODI |
0 |
53 |
0 |
0 |
4 |
3 |
1 |
0 |
| CDI |
0 |
112 |
11 |
5 |
10 |
54 |
61 |
1 |
| VCDI |
0 |
69 |
60 |
134 |
485 |
1029 |
9366 |
20227 |
|
Date: 2024-02-23:
| 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 |
276 |
7 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
50 |
13 |
11 |
5 |
0 |
0 |
0 |
| VODI |
0 |
37 |
5 |
18 |
10 |
0 |
0 |
0 |
| ODI |
0 |
37 |
4 |
4 |
3 |
0 |
0 |
0 |
| CDI |
0 |
30 |
29 |
57 |
51 |
34 |
41 |
0 |
| VCDI |
0 |
2 |
3 |
115 |
331 |
943 |
9743 |
20219 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
205 |
4 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
58 |
7 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
56 |
11 |
21 |
15 |
0 |
0 |
0 |
| ODI |
0 |
38 |
3 |
2 |
0 |
0 |
0 |
0 |
| CDI |
0 |
42 |
3 |
8 |
5 |
17 |
7 |
0 |
| VCDI |
0 |
33 |
33 |
172 |
380 |
960 |
9777 |
20219 |
|
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