Validation of sea ice concentration - Asian sector
Bulletin date: 2023-11-02
Data source: OSI SAF N.H. multi-product 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 |
2015 |
1515 |
153 |
630 |
230 |
75 |
0 |
0 |
| OW |
0 |
69 |
141 |
826 |
326 |
243 |
0 |
0 |
| VODI |
0 |
0 |
0 |
176 |
575 |
714 |
24 |
0 |
| ODI |
0 |
0 |
0 |
16 |
404 |
1013 |
108 |
0 |
| CDI |
0 |
0 |
0 |
0 |
427 |
2350 |
505 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
55 |
3141 |
6931 |
10433 |
|
...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 |
1583 |
1577 |
66 |
153 |
126 |
0 |
0 |
0 |
| OW |
0 |
84 |
75 |
493 |
594 |
389 |
0 |
0 |
| VODI |
0 |
0 |
0 |
146 |
600 |
700 |
12 |
0 |
| ODI |
0 |
0 |
0 |
3 |
184 |
969 |
127 |
0 |
| CDI |
0 |
0 |
0 |
0 |
73 |
1847 |
779 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
19 |
2368 |
6667 |
13462 |
|
...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 |
1904 |
1282 |
40 |
48 |
0 |
0 |
0 |
0 |
| OW |
0 |
104 |
33 |
146 |
118 |
24 |
0 |
0 |
| VODI |
0 |
0 |
5 |
145 |
453 |
116 |
0 |
0 |
| ODI |
0 |
0 |
0 |
43 |
509 |
345 |
1 |
0 |
| CDI |
0 |
0 |
0 |
0 |
498 |
1609 |
388 |
13 |
| VCDI |
0 |
0 |
0 |
0 |
166 |
3052 |
6159 |
15895 |
|
...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 |
1711 |
1661 |
18 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
159 |
69 |
82 |
15 |
0 |
0 |
0 |
| VODI |
0 |
8 |
39 |
161 |
118 |
180 |
10 |
0 |
| ODI |
0 |
0 |
0 |
78 |
176 |
250 |
48 |
0 |
| CDI |
0 |
0 |
0 |
20 |
436 |
703 |
245 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
196 |
3726 |
8025 |
14957 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1711 |
1694 |
26 |
5 |
0 |
0 |
0 |
0 |
| OW |
0 |
129 |
69 |
97 |
23 |
0 |
0 |
0 |
| VODI |
0 |
5 |
31 |
160 |
115 |
154 |
5 |
0 |
| ODI |
0 |
0 |
0 |
69 |
197 |
324 |
63 |
0 |
| CDI |
0 |
0 |
0 |
15 |
362 |
664 |
259 |
1 |
| VCDI |
0 |
0 |
0 |
0 |
244 |
3717 |
8001 |
14956 |
|
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 |
1470 |
1882 |
5 |
5 |
0 |
0 |
0 |
0 |
| OW |
10 |
193 |
43 |
38 |
16 |
0 |
0 |
0 |
| VODI |
0 |
48 |
54 |
140 |
88 |
21 |
0 |
0 |
| ODI |
0 |
2 |
15 |
123 |
192 |
169 |
95 |
0 |
| CDI |
0 |
0 |
0 |
40 |
321 |
323 |
332 |
6 |
| VCDI |
0 |
0 |
0 |
1 |
394 |
4142 |
8479 |
14449 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1477 |
1969 |
9 |
6 |
0 |
0 |
0 |
0 |
| OW |
3 |
126 |
53 |
65 |
26 |
0 |
0 |
0 |
| VODI |
0 |
30 |
46 |
140 |
83 |
20 |
0 |
0 |
| ODI |
0 |
0 |
9 |
104 |
204 |
158 |
92 |
0 |
| CDI |
0 |
0 |
0 |
29 |
266 |
330 |
324 |
6 |
| VCDI |
0 |
0 |
0 |
3 |
432 |
4147 |
8490 |
14449 |
|
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 |
802 |
2280 |
9 |
6 |
4 |
0 |
0 |
0 |
| OW |
0 |
251 |
48 |
79 |
5 |
0 |
0 |
0 |
| VODI |
0 |
13 |
10 |
242 |
28 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
45 |
260 |
23 |
0 |
6 |
| CDI |
0 |
0 |
0 |
4 |
155 |
457 |
34 |
27 |
| VCDI |
0 |
0 |
0 |
0 |
97 |
3632 |
10686 |
13893 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
802 |
2343 |
37 |
68 |
4 |
0 |
0 |
0 |
| OW |
0 |
159 |
18 |
102 |
44 |
0 |
0 |
0 |
| VODI |
0 |
38 |
6 |
108 |
92 |
69 |
0 |
0 |
| ODI |
0 |
4 |
5 |
72 |
104 |
152 |
31 |
8 |
| CDI |
0 |
0 |
1 |
25 |
115 |
282 |
441 |
44 |
| VCDI |
0 |
0 |
0 |
1 |
190 |
3609 |
10248 |
13874 |
|
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 |
1289 |
1672 |
45 |
22 |
0 |
0 |
0 |
0 |
| OW |
1 |
186 |
87 |
162 |
32 |
0 |
0 |
0 |
| VODI |
0 |
49 |
46 |
149 |
42 |
0 |
0 |
0 |
| ODI |
0 |
6 |
4 |
100 |
136 |
19 |
7 |
0 |
| CDI |
0 |
1 |
0 |
29 |
202 |
316 |
116 |
22 |
| VCDI |
0 |
0 |
0 |
1 |
74 |
2865 |
10946 |
14470 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1290 |
1658 |
58 |
90 |
24 |
0 |
0 |
0 |
| OW |
0 |
137 |
60 |
100 |
90 |
12 |
0 |
0 |
| VODI |
0 |
79 |
41 |
115 |
65 |
63 |
0 |
0 |
| ODI |
0 |
37 |
19 |
72 |
51 |
119 |
40 |
1 |
| CDI |
0 |
3 |
4 |
77 |
115 |
244 |
283 |
30 |
| VCDI |
0 |
0 |
0 |
9 |
141 |
2762 |
10746 |
14461 |
|
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 |
1162 |
1486 |
48 |
26 |
0 |
0 |
0 |
0 |
| OW |
0 |
129 |
95 |
153 |
38 |
0 |
0 |
0 |
| VODI |
0 |
66 |
34 |
214 |
130 |
25 |
0 |
0 |
| ODI |
0 |
11 |
4 |
96 |
83 |
77 |
0 |
0 |
| CDI |
0 |
2 |
0 |
22 |
183 |
271 |
63 |
1 |
| VCDI |
0 |
0 |
0 |
17 |
167 |
1406 |
12315 |
14772 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
1162 |
1461 |
48 |
90 |
39 |
2 |
0 |
0 |
| OW |
0 |
127 |
46 |
79 |
53 |
33 |
0 |
0 |
| VODI |
0 |
74 |
74 |
186 |
128 |
71 |
5 |
0 |
| ODI |
0 |
24 |
12 |
93 |
52 |
137 |
23 |
0 |
| CDI |
0 |
5 |
0 |
47 |
108 |
247 |
269 |
1 |
| VCDI |
0 |
3 |
1 |
33 |
221 |
1289 |
12081 |
14772 |
|
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