Validation of sea ice concentration - Asian sector
Bulletin date: 2024-05-09
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2024-05-03:
| 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 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
2 |
5 |
14 |
1 |
0 |
0 |
0 |
| VODI |
0 |
2 |
9 |
30 |
40 |
0 |
1 |
0 |
| ODI |
0 |
1 |
2 |
27 |
25 |
8 |
10 |
0 |
| CDI |
0 |
0 |
5 |
45 |
174 |
196 |
170 |
1 |
| VCDI |
0 |
0 |
0 |
56 |
324 |
1186 |
15519 |
14227 |
|
...date precedes bulletin
|
Date: 2024-05-05:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
0 |
5 |
11 |
1 |
1 |
0 |
0 |
| VODI |
0 |
1 |
0 |
18 |
37 |
30 |
1 |
0 |
| ODI |
0 |
1 |
2 |
14 |
38 |
21 |
5 |
0 |
| CDI |
0 |
7 |
8 |
86 |
148 |
254 |
291 |
5 |
| VCDI |
0 |
12 |
12 |
78 |
273 |
862 |
15332 |
14528 |
|
...date precedes bulletin
|
Date: 2024-05-07:
| 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 |
3 |
2 |
1 |
0 |
0 |
| VODI |
0 |
3 |
3 |
33 |
6 |
16 |
6 |
0 |
| ODI |
0 |
2 |
12 |
50 |
85 |
15 |
9 |
0 |
| CDI |
0 |
8 |
25 |
99 |
159 |
252 |
144 |
0 |
| VCDI |
0 |
18 |
24 |
119 |
331 |
1149 |
14331 |
15176 |
|
...date precedes bulletin
|
Date: 2024-05-09:
| 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 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
6 |
8 |
4 |
1 |
1 |
1 |
0 |
| VODI |
0 |
33 |
10 |
30 |
15 |
3 |
6 |
0 |
| ODI |
0 |
8 |
11 |
40 |
51 |
9 |
28 |
0 |
| CDI |
0 |
8 |
15 |
86 |
130 |
207 |
197 |
0 |
| VCDI |
0 |
27 |
17 |
136 |
413 |
1315 |
15262 |
14003 |
|
|
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 |
6 |
6 |
3 |
3 |
2 |
2 |
0 |
| VODI |
0 |
30 |
12 |
26 |
13 |
3 |
8 |
0 |
| ODI |
0 |
11 |
17 |
45 |
51 |
6 |
25 |
0 |
| CDI |
0 |
8 |
9 |
88 |
136 |
237 |
237 |
0 |
| VCDI |
0 |
27 |
17 |
135 |
407 |
1287 |
15222 |
14003 |
|
Date: 2024-05-11:
| 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 |
6 |
0 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
19 |
4 |
16 |
5 |
0 |
0 |
0 |
| VODI |
0 |
69 |
10 |
28 |
3 |
2 |
8 |
0 |
| ODI |
0 |
3 |
7 |
24 |
29 |
22 |
15 |
0 |
| CDI |
0 |
7 |
12 |
85 |
150 |
305 |
113 |
0 |
| VCDI |
0 |
51 |
43 |
233 |
402 |
1368 |
16195 |
12842 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
7 |
0 |
8 |
1 |
0 |
0 |
0 |
| OW |
0 |
20 |
2 |
19 |
4 |
0 |
1 |
0 |
| VODI |
0 |
58 |
12 |
20 |
1 |
1 |
9 |
0 |
| ODI |
0 |
16 |
13 |
27 |
23 |
30 |
13 |
0 |
| CDI |
0 |
3 |
6 |
82 |
165 |
338 |
114 |
0 |
| VCDI |
0 |
51 |
43 |
236 |
395 |
1328 |
16194 |
12842 |
|
Date: 2024-05-13:
| 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 |
5 |
0 |
4 |
0 |
0 |
0 |
0 |
| OW |
0 |
38 |
7 |
11 |
7 |
0 |
0 |
0 |
| VODI |
0 |
38 |
27 |
33 |
17 |
5 |
8 |
0 |
| ODI |
0 |
1 |
9 |
41 |
48 |
38 |
8 |
0 |
| CDI |
0 |
60 |
23 |
86 |
218 |
518 |
150 |
0 |
| VCDI |
0 |
37 |
44 |
186 |
327 |
1278 |
16817 |
11993 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
0 |
6 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
36 |
2 |
9 |
13 |
0 |
1 |
0 |
| VODI |
0 |
21 |
22 |
22 |
11 |
8 |
7 |
0 |
| ODI |
0 |
17 |
12 |
31 |
26 |
39 |
8 |
0 |
| CDI |
0 |
15 |
13 |
88 |
186 |
347 |
134 |
0 |
| VCDI |
0 |
84 |
61 |
210 |
381 |
1445 |
16833 |
11993 |
|
Date: 2024-05-15:
| 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 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
48 |
2 |
8 |
5 |
0 |
1 |
0 |
| VODI |
0 |
57 |
20 |
26 |
19 |
4 |
9 |
0 |
| ODI |
0 |
0 |
10 |
50 |
49 |
17 |
10 |
0 |
| CDI |
0 |
59 |
26 |
84 |
233 |
495 |
108 |
0 |
| VCDI |
0 |
12 |
31 |
191 |
316 |
1175 |
16175 |
12842 |
|
|
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 |
1 |
2 |
0 |
0 |
0 |
| OW |
0 |
34 |
3 |
6 |
12 |
4 |
1 |
0 |
| VODI |
0 |
40 |
5 |
33 |
22 |
10 |
10 |
0 |
| ODI |
0 |
27 |
15 |
39 |
33 |
30 |
13 |
0 |
| CDI |
0 |
23 |
26 |
101 |
261 |
431 |
133 |
0 |
| VCDI |
0 |
51 |
40 |
179 |
292 |
1216 |
16146 |
12842 |
|
Date: 2024-05-17:
| 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 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
53 |
10 |
8 |
4 |
0 |
0 |
0 |
| VODI |
0 |
58 |
11 |
24 |
7 |
5 |
9 |
0 |
| ODI |
0 |
5 |
12 |
41 |
29 |
17 |
14 |
0 |
| CDI |
0 |
31 |
27 |
113 |
258 |
519 |
117 |
0 |
| VCDI |
0 |
21 |
17 |
172 |
337 |
1166 |
17099 |
11897 |
|
|
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 |
5 |
4 |
7 |
0 |
0 |
| OW |
0 |
12 |
8 |
11 |
11 |
6 |
4 |
0 |
| VODI |
0 |
57 |
12 |
33 |
12 |
8 |
18 |
0 |
| ODI |
0 |
41 |
6 |
19 |
30 |
14 |
31 |
0 |
| CDI |
0 |
28 |
28 |
137 |
286 |
530 |
189 |
0 |
| VCDI |
0 |
29 |
23 |
154 |
292 |
1142 |
16997 |
11897 |
|
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