Validation of sea ice concentration - Asian sector
Bulletin date: 2024-05-02
Data source: OSI SAF N.H. AMSR 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
| VODI |
0 |
0 |
3 |
3 |
13 |
5 |
0 |
0 |
| ODI |
0 |
12 |
3 |
6 |
16 |
1 |
1 |
0 |
| CDI |
0 |
20 |
17 |
25 |
12 |
7 |
39 |
0 |
| VCDI |
0 |
26 |
24 |
98 |
192 |
510 |
14437 |
16611 |
|
...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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| VODI |
0 |
4 |
2 |
7 |
3 |
3 |
1 |
0 |
| ODI |
0 |
15 |
9 |
14 |
14 |
15 |
0 |
0 |
| CDI |
0 |
25 |
15 |
29 |
63 |
10 |
53 |
0 |
| VCDI |
0 |
0 |
0 |
31 |
152 |
577 |
13290 |
17750 |
|
...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 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
5 |
3 |
0 |
0 |
0 |
0 |
| VODI |
0 |
24 |
14 |
18 |
14 |
1 |
0 |
0 |
| ODI |
0 |
26 |
8 |
12 |
26 |
6 |
2 |
0 |
| CDI |
0 |
1 |
3 |
50 |
151 |
79 |
59 |
0 |
| VCDI |
0 |
0 |
1 |
15 |
125 |
1195 |
14757 |
15483 |
|
...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 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
2 |
14 |
0 |
0 |
0 |
0 |
| VODI |
0 |
6 |
12 |
30 |
29 |
3 |
0 |
0 |
| ODI |
0 |
7 |
10 |
16 |
19 |
17 |
9 |
0 |
| CDI |
0 |
0 |
1 |
32 |
204 |
141 |
110 |
0 |
| VCDI |
0 |
0 |
1 |
39 |
323 |
1284 |
13658 |
16114 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
4 |
15 |
0 |
0 |
0 |
0 |
| VODI |
0 |
6 |
10 |
29 |
28 |
3 |
1 |
0 |
| ODI |
0 |
7 |
10 |
16 |
16 |
19 |
11 |
0 |
| CDI |
0 |
0 |
0 |
38 |
212 |
140 |
171 |
1 |
| VCDI |
0 |
0 |
2 |
33 |
319 |
1283 |
13594 |
16113 |
|
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 |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
9 |
4 |
9 |
1 |
0 |
0 |
0 |
| VODI |
0 |
0 |
1 |
36 |
41 |
4 |
0 |
0 |
| ODI |
0 |
0 |
6 |
25 |
22 |
11 |
8 |
0 |
| CDI |
0 |
2 |
3 |
72 |
180 |
219 |
223 |
1 |
| VCDI |
0 |
7 |
16 |
61 |
298 |
1047 |
15243 |
14531 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
5 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
6 |
3 |
9 |
2 |
0 |
0 |
0 |
| VODI |
0 |
0 |
2 |
36 |
40 |
4 |
0 |
0 |
| ODI |
0 |
0 |
5 |
25 |
22 |
11 |
15 |
0 |
| CDI |
0 |
1 |
3 |
66 |
194 |
229 |
289 |
7 |
| VCDI |
0 |
8 |
17 |
67 |
284 |
1037 |
15170 |
14525 |
|
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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
1 |
0 |
0 |
0 |
1 |
0 |
0 |
| VODI |
0 |
2 |
0 |
27 |
16 |
12 |
1 |
0 |
| ODI |
0 |
5 |
4 |
34 |
79 |
36 |
11 |
0 |
| CDI |
0 |
12 |
16 |
95 |
145 |
279 |
171 |
3 |
| VCDI |
0 |
7 |
7 |
82 |
253 |
826 |
14360 |
15597 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
0 |
6 |
9 |
0 |
0 |
0 |
| VODI |
0 |
1 |
0 |
22 |
38 |
26 |
1 |
0 |
| ODI |
0 |
2 |
2 |
19 |
33 |
23 |
9 |
1 |
| CDI |
0 |
10 |
10 |
94 |
127 |
259 |
459 |
13 |
| VCDI |
0 |
14 |
15 |
97 |
286 |
846 |
14074 |
15586 |
|
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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
2 |
2 |
3 |
1 |
0 |
1 |
0 |
| VODI |
0 |
14 |
10 |
20 |
9 |
11 |
8 |
0 |
| ODI |
0 |
9 |
9 |
55 |
70 |
19 |
19 |
0 |
| CDI |
0 |
5 |
11 |
102 |
122 |
239 |
191 |
0 |
| VCDI |
0 |
10 |
13 |
143 |
379 |
1230 |
14318 |
15057 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
5 |
1 |
9 |
3 |
0 |
0 |
0 |
| VODI |
0 |
16 |
7 |
15 |
39 |
15 |
9 |
0 |
| ODI |
0 |
3 |
11 |
31 |
37 |
17 |
21 |
0 |
| CDI |
0 |
3 |
12 |
113 |
110 |
224 |
245 |
0 |
| VCDI |
0 |
13 |
14 |
155 |
392 |
1243 |
14262 |
15057 |
|
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 |
0 |
4 |
0 |
2 |
0 |
0 |
0 |
0 |
| OW |
0 |
10 |
6 |
15 |
3 |
1 |
0 |
0 |
| VODI |
0 |
63 |
17 |
27 |
4 |
3 |
7 |
0 |
| ODI |
0 |
4 |
8 |
28 |
32 |
18 |
16 |
0 |
| CDI |
0 |
12 |
13 |
51 |
170 |
262 |
144 |
0 |
| VCDI |
0 |
33 |
36 |
156 |
423 |
1332 |
14946 |
14236 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
3 |
4 |
8 |
1 |
1 |
0 |
0 |
| VODI |
0 |
52 |
11 |
34 |
23 |
9 |
5 |
0 |
| ODI |
0 |
25 |
14 |
30 |
17 |
8 |
14 |
0 |
| CDI |
0 |
13 |
15 |
49 |
101 |
310 |
209 |
0 |
| VCDI |
0 |
33 |
36 |
158 |
490 |
1288 |
14885 |
14236 |
|
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