Validation of sea ice concentration - Asian sector
Bulletin date: 2024-02-22
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-02-16:
| 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 |
189 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
170 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
85 |
15 |
13 |
3 |
0 |
0 |
0 |
| ODI |
0 |
45 |
7 |
4 |
3 |
0 |
0 |
0 |
| CDI |
0 |
73 |
12 |
13 |
6 |
8 |
2 |
0 |
| VCDI |
0 |
241 |
56 |
178 |
267 |
1302 |
8857 |
20533 |
|
...date precedes bulletin
|
Date: 2024-02-18:
| 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 |
238 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
149 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
110 |
10 |
6 |
0 |
0 |
0 |
0 |
| ODI |
0 |
58 |
6 |
5 |
0 |
1 |
0 |
0 |
| CDI |
0 |
101 |
16 |
15 |
8 |
33 |
3 |
0 |
| VCDI |
0 |
409 |
93 |
208 |
275 |
1085 |
9156 |
20097 |
|
...date precedes bulletin
|
Date: 2024-02-20:
| 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 |
277 |
5 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
119 |
10 |
21 |
0 |
0 |
0 |
0 |
| VODI |
0 |
128 |
17 |
29 |
1 |
0 |
0 |
0 |
| ODI |
0 |
74 |
11 |
16 |
2 |
1 |
0 |
0 |
| CDI |
0 |
65 |
45 |
69 |
71 |
46 |
42 |
0 |
| VCDI |
0 |
14 |
16 |
133 |
459 |
1173 |
9529 |
19707 |
|
...date precedes bulletin
|
Date: 2024-02-22:
| 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 |
0 |
198 |
4 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
98 |
6 |
11 |
3 |
0 |
0 |
0 |
| VODI |
0 |
61 |
17 |
22 |
9 |
0 |
0 |
0 |
| ODI |
0 |
62 |
28 |
32 |
15 |
2 |
0 |
0 |
| CDI |
0 |
43 |
12 |
44 |
106 |
39 |
33 |
6 |
| VCDI |
0 |
44 |
14 |
47 |
307 |
1000 |
9576 |
20240 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
178 |
3 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
120 |
6 |
8 |
2 |
0 |
0 |
0 |
| VODI |
0 |
60 |
20 |
28 |
12 |
0 |
0 |
0 |
| ODI |
0 |
61 |
25 |
33 |
13 |
2 |
0 |
0 |
| CDI |
0 |
44 |
13 |
39 |
113 |
52 |
33 |
6 |
| VCDI |
0 |
43 |
14 |
49 |
300 |
987 |
9576 |
20240 |
|
Date: 2024-02-24:
| 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 |
0 |
166 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
106 |
7 |
7 |
1 |
0 |
0 |
0 |
| VODI |
0 |
68 |
9 |
10 |
10 |
0 |
0 |
0 |
| ODI |
0 |
46 |
20 |
41 |
16 |
2 |
0 |
0 |
| CDI |
0 |
52 |
28 |
50 |
20 |
13 |
12 |
0 |
| VCDI |
0 |
74 |
19 |
80 |
297 |
1107 |
9471 |
20347 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
142 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
138 |
7 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
67 |
12 |
11 |
9 |
0 |
0 |
0 |
| ODI |
0 |
45 |
22 |
50 |
16 |
3 |
0 |
0 |
| CDI |
0 |
53 |
24 |
41 |
23 |
14 |
11 |
0 |
| VCDI |
0 |
67 |
20 |
81 |
296 |
1105 |
9472 |
20347 |
|
Date: 2024-02-26:
| 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 |
0 |
272 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
224 |
5 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
86 |
18 |
10 |
0 |
0 |
0 |
0 |
| ODI |
0 |
69 |
5 |
14 |
3 |
1 |
0 |
0 |
| CDI |
0 |
177 |
37 |
45 |
52 |
73 |
20 |
0 |
| VCDI |
0 |
41 |
29 |
101 |
316 |
1675 |
10083 |
18726 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
181 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
137 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
113 |
3 |
0 |
0 |
0 |
0 |
0 |
| ODI |
0 |
57 |
21 |
19 |
5 |
2 |
0 |
0 |
| CDI |
0 |
157 |
12 |
24 |
25 |
43 |
4 |
0 |
| VCDI |
0 |
224 |
58 |
127 |
341 |
1704 |
10099 |
18726 |
|
Date: 2024-02-28:
| 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 |
0 |
247 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
131 |
4 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
104 |
8 |
11 |
1 |
0 |
0 |
0 |
| ODI |
0 |
93 |
5 |
4 |
6 |
0 |
0 |
0 |
| CDI |
0 |
149 |
45 |
78 |
75 |
73 |
19 |
10 |
| VCDI |
0 |
80 |
29 |
108 |
334 |
1776 |
13827 |
14864 |
|
|
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 |
108 |
2 |
1 |
0 |
0 |
0 |
0 |
| VODI |
0 |
95 |
3 |
7 |
1 |
0 |
0 |
0 |
| ODI |
0 |
58 |
11 |
9 |
6 |
0 |
0 |
0 |
| CDI |
0 |
216 |
20 |
25 |
29 |
46 |
31 |
6 |
| VCDI |
0 |
177 |
55 |
160 |
380 |
1803 |
13815 |
14868 |
|
Date: 2024-03-01:
| 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 |
10 |
259 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
96 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
159 |
6 |
2 |
1 |
0 |
0 |
0 |
| ODI |
0 |
94 |
7 |
7 |
4 |
2 |
0 |
0 |
| CDI |
0 |
232 |
23 |
44 |
19 |
36 |
9 |
0 |
| VCDI |
0 |
170 |
45 |
160 |
326 |
2284 |
12263 |
15824 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
2 |
150 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
8 |
111 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
110 |
4 |
4 |
1 |
0 |
0 |
0 |
| ODI |
0 |
76 |
7 |
7 |
2 |
2 |
0 |
0 |
| CDI |
0 |
167 |
10 |
26 |
15 |
30 |
11 |
0 |
| VCDI |
0 |
396 |
60 |
176 |
332 |
2290 |
12261 |
15824 |
|
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