Validation of sea ice concentration - Asian sector
Bulletin date: 2023-11-02
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-27:
| 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 |
1354 |
2120 |
151 |
428 |
231 |
69 |
0 |
0 |
| OW |
0 |
229 |
190 |
611 |
325 |
233 |
2 |
0 |
| VODI |
0 |
3 |
17 |
152 |
532 |
693 |
49 |
0 |
| ODI |
0 |
0 |
0 |
15 |
366 |
988 |
146 |
0 |
| CDI |
0 |
0 |
0 |
0 |
421 |
2245 |
522 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
157 |
3160 |
8853 |
7820 |
|
...date precedes bulletin
|
Date: 2023-10-29:
| 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 |
1390 |
1583 |
72 |
114 |
83 |
0 |
0 |
0 |
| OW |
0 |
189 |
76 |
434 |
636 |
293 |
0 |
0 |
| VODI |
0 |
4 |
18 |
136 |
554 |
689 |
22 |
0 |
| ODI |
0 |
0 |
0 |
15 |
210 |
866 |
174 |
0 |
| CDI |
0 |
0 |
0 |
4 |
128 |
1747 |
761 |
0 |
| VCDI |
0 |
0 |
0 |
1 |
23 |
2547 |
9278 |
10035 |
|
...date precedes bulletin
|
Date: 2023-10-31:
| 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 |
1246 |
1714 |
33 |
20 |
0 |
0 |
0 |
0 |
| OW |
0 |
152 |
41 |
106 |
104 |
17 |
0 |
0 |
| VODI |
0 |
14 |
28 |
205 |
350 |
108 |
0 |
0 |
| ODI |
0 |
2 |
8 |
92 |
489 |
282 |
11 |
0 |
| CDI |
0 |
0 |
0 |
5 |
565 |
1596 |
296 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
295 |
3152 |
10380 |
10769 |
|
...date precedes bulletin
|
Date: 2023-11-02:
| 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 |
1510 |
1620 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
264 |
24 |
26 |
10 |
0 |
0 |
0 |
| VODI |
0 |
86 |
63 |
85 |
74 |
184 |
8 |
0 |
| ODI |
0 |
5 |
15 |
92 |
132 |
275 |
35 |
0 |
| CDI |
0 |
0 |
0 |
26 |
443 |
682 |
216 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
392 |
3620 |
10530 |
11662 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1510 |
1660 |
3 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
241 |
28 |
33 |
15 |
0 |
0 |
0 |
| VODI |
0 |
69 |
65 |
89 |
68 |
163 |
4 |
0 |
| ODI |
0 |
5 |
9 |
87 |
181 |
326 |
43 |
0 |
| CDI |
0 |
0 |
0 |
20 |
364 |
660 |
226 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
423 |
3612 |
10516 |
11662 |
|
Date: 2023-11-04:
| 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 |
1511 |
1592 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
16 |
232 |
12 |
21 |
13 |
0 |
0 |
0 |
| VODI |
0 |
155 |
29 |
79 |
52 |
32 |
1 |
0 |
| ODI |
0 |
34 |
35 |
123 |
115 |
200 |
84 |
0 |
| CDI |
0 |
7 |
14 |
87 |
225 |
363 |
293 |
0 |
| VCDI |
0 |
0 |
0 |
23 |
561 |
4054 |
9950 |
12167 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1520 |
1682 |
2 |
0 |
0 |
0 |
0 |
0 |
| OW |
7 |
195 |
15 |
28 |
20 |
2 |
0 |
0 |
| VODI |
0 |
110 |
38 |
91 |
46 |
31 |
1 |
0 |
| ODI |
0 |
31 |
24 |
111 |
138 |
181 |
79 |
0 |
| CDI |
0 |
2 |
12 |
67 |
177 |
372 |
289 |
0 |
| VCDI |
0 |
0 |
1 |
36 |
585 |
4063 |
9959 |
12167 |
|
Date: 2023-11-06:
| 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 |
720 |
2102 |
16 |
9 |
3 |
0 |
0 |
0 |
| OW |
0 |
254 |
35 |
75 |
7 |
0 |
0 |
0 |
| VODI |
0 |
64 |
72 |
119 |
35 |
1 |
0 |
0 |
| ODI |
0 |
0 |
3 |
79 |
169 |
67 |
1 |
14 |
| CDI |
0 |
0 |
0 |
18 |
100 |
449 |
74 |
24 |
| VCDI |
0 |
0 |
0 |
0 |
88 |
3843 |
12100 |
11541 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
720 |
2206 |
32 |
39 |
6 |
0 |
0 |
0 |
| OW |
0 |
138 |
44 |
93 |
37 |
0 |
0 |
0 |
| VODI |
0 |
57 |
31 |
65 |
66 |
92 |
0 |
0 |
| ODI |
0 |
13 |
14 |
48 |
84 |
134 |
71 |
17 |
| CDI |
0 |
6 |
5 |
34 |
66 |
323 |
413 |
33 |
| VCDI |
0 |
0 |
0 |
21 |
143 |
3811 |
11691 |
11529 |
|
Date: 2023-11-08:
| 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 |
616 |
2128 |
14 |
13 |
6 |
0 |
0 |
0 |
| OW |
0 |
269 |
35 |
93 |
60 |
0 |
0 |
0 |
| VODI |
0 |
159 |
31 |
58 |
32 |
1 |
0 |
0 |
| ODI |
0 |
39 |
28 |
76 |
89 |
39 |
1 |
0 |
| CDI |
0 |
5 |
6 |
43 |
119 |
321 |
157 |
0 |
| VCDI |
0 |
0 |
1 |
9 |
55 |
3171 |
14453 |
9955 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
616 |
2155 |
29 |
50 |
21 |
1 |
0 |
0 |
| OW |
0 |
189 |
24 |
63 |
92 |
18 |
0 |
0 |
| VODI |
0 |
131 |
23 |
74 |
56 |
67 |
9 |
0 |
| ODI |
0 |
89 |
21 |
19 |
32 |
113 |
61 |
0 |
| CDI |
0 |
33 |
15 |
63 |
70 |
244 |
288 |
3 |
| VCDI |
0 |
3 |
3 |
23 |
90 |
3089 |
14253 |
9952 |
|
Date: 2023-11-10:
| 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 |
909 |
1517 |
26 |
25 |
0 |
0 |
0 |
0 |
| OW |
0 |
219 |
47 |
89 |
53 |
1 |
0 |
0 |
| VODI |
0 |
138 |
50 |
96 |
115 |
56 |
0 |
0 |
| ODI |
0 |
26 |
24 |
79 |
56 |
81 |
0 |
0 |
| CDI |
0 |
5 |
3 |
30 |
122 |
290 |
72 |
0 |
| VCDI |
0 |
1 |
2 |
25 |
109 |
1573 |
16125 |
10118 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
909 |
1525 |
32 |
56 |
37 |
5 |
0 |
0 |
| OW |
0 |
164 |
34 |
44 |
47 |
40 |
0 |
0 |
| VODI |
0 |
143 |
43 |
110 |
120 |
98 |
9 |
0 |
| ODI |
0 |
54 |
26 |
51 |
40 |
139 |
23 |
0 |
| CDI |
0 |
9 |
10 |
47 |
77 |
228 |
265 |
0 |
| VCDI |
0 |
11 |
7 |
36 |
134 |
1491 |
15900 |
10118 |
|
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