Validation of sea ice concentration - Asian sector
Bulletin date: 2023-09-14
Data source: OSI SAF N.H. AMSR sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-09-08:
| 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 |
9533 |
8052 |
148 |
120 |
7 |
0 |
0 |
0 |
| OW |
0 |
395 |
154 |
278 |
31 |
0 |
0 |
0 |
| VODI |
0 |
148 |
183 |
1337 |
452 |
1 |
0 |
0 |
| ODI |
0 |
20 |
27 |
716 |
3809 |
1112 |
0 |
0 |
| CDI |
0 |
0 |
2 |
82 |
1785 |
3663 |
24 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
3 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-10:
| 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 |
12020 |
5719 |
61 |
64 |
8 |
0 |
0 |
0 |
| OW |
0 |
586 |
147 |
208 |
41 |
0 |
0 |
0 |
| VODI |
0 |
249 |
247 |
1246 |
387 |
1 |
0 |
0 |
| ODI |
0 |
45 |
40 |
881 |
4118 |
495 |
0 |
0 |
| CDI |
0 |
6 |
8 |
95 |
2423 |
2973 |
14 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-12:
| 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 |
12054 |
6332 |
89 |
94 |
1 |
0 |
0 |
0 |
| OW |
0 |
481 |
217 |
329 |
29 |
0 |
0 |
0 |
| VODI |
0 |
130 |
187 |
1451 |
342 |
1 |
0 |
0 |
| ODI |
0 |
12 |
20 |
787 |
5237 |
381 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
1026 |
2881 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
...date precedes bulletin
|
Date: 2023-09-14:
| 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 |
12472 |
5834 |
91 |
84 |
3 |
0 |
0 |
0 |
| OW |
0 |
651 |
230 |
387 |
43 |
0 |
0 |
0 |
| VODI |
0 |
158 |
174 |
1172 |
404 |
4 |
0 |
0 |
| ODI |
0 |
18 |
20 |
795 |
4604 |
524 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
1600 |
2809 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12472 |
6056 |
122 |
129 |
6 |
0 |
0 |
0 |
| OW |
0 |
427 |
191 |
353 |
55 |
0 |
0 |
0 |
| VODI |
0 |
160 |
183 |
1126 |
396 |
4 |
0 |
0 |
| ODI |
0 |
18 |
17 |
826 |
4961 |
646 |
0 |
0 |
| CDI |
0 |
0 |
2 |
9 |
1236 |
2687 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-16:
| 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 |
12403 |
5686 |
86 |
79 |
0 |
0 |
0 |
0 |
| OW |
0 |
860 |
209 |
346 |
39 |
0 |
0 |
0 |
| VODI |
0 |
204 |
197 |
1072 |
335 |
3 |
0 |
0 |
| ODI |
0 |
23 |
20 |
618 |
3835 |
832 |
38 |
0 |
| CDI |
0 |
0 |
0 |
10 |
1671 |
3508 |
8 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12403 |
5994 |
104 |
87 |
3 |
0 |
0 |
0 |
| OW |
0 |
546 |
174 |
347 |
42 |
0 |
0 |
0 |
| VODI |
0 |
207 |
215 |
1042 |
333 |
4 |
0 |
0 |
| ODI |
0 |
25 |
16 |
627 |
4096 |
934 |
39 |
0 |
| CDI |
0 |
1 |
3 |
22 |
1406 |
3405 |
7 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-18:
| 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 |
12264 |
6188 |
178 |
134 |
8 |
0 |
0 |
0 |
| OW |
0 |
380 |
200 |
327 |
26 |
0 |
0 |
0 |
| VODI |
0 |
78 |
151 |
1104 |
255 |
0 |
0 |
0 |
| ODI |
0 |
1 |
2 |
336 |
3033 |
235 |
0 |
0 |
| CDI |
0 |
0 |
0 |
4 |
1442 |
5484 |
59 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
150 |
43 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12264 |
5700 |
93 |
65 |
5 |
0 |
0 |
0 |
| OW |
0 |
658 |
182 |
269 |
51 |
0 |
0 |
0 |
| VODI |
0 |
265 |
227 |
1006 |
359 |
7 |
0 |
0 |
| ODI |
0 |
24 |
28 |
520 |
2951 |
1192 |
37 |
0 |
| CDI |
0 |
0 |
1 |
45 |
1398 |
4670 |
65 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-20:
| 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 |
12203 |
6140 |
147 |
148 |
5 |
0 |
0 |
0 |
| OW |
0 |
374 |
166 |
335 |
26 |
0 |
0 |
0 |
| VODI |
0 |
106 |
103 |
901 |
298 |
2 |
0 |
0 |
| ODI |
0 |
2 |
12 |
290 |
2477 |
419 |
0 |
0 |
| CDI |
0 |
0 |
0 |
13 |
2000 |
5696 |
135 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
74 |
10 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12203 |
5345 |
41 |
26 |
1 |
0 |
0 |
0 |
| OW |
0 |
867 |
150 |
215 |
26 |
0 |
0 |
0 |
| VODI |
0 |
349 |
190 |
967 |
353 |
2 |
0 |
0 |
| ODI |
0 |
61 |
46 |
442 |
2385 |
642 |
5 |
0 |
| CDI |
0 |
0 |
1 |
37 |
2041 |
5547 |
140 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Date: 2023-09-22:
| 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 |
12702 |
5336 |
95 |
122 |
48 |
2 |
0 |
0 |
| OW |
0 |
677 |
121 |
176 |
200 |
80 |
0 |
0 |
| VODI |
0 |
167 |
147 |
516 |
239 |
250 |
0 |
0 |
| ODI |
0 |
32 |
34 |
388 |
1653 |
569 |
32 |
0 |
| CDI |
0 |
0 |
0 |
39 |
816 |
6795 |
605 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
156 |
85 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
12702 |
4682 |
38 |
36 |
0 |
0 |
0 |
0 |
| OW |
0 |
836 |
92 |
147 |
75 |
0 |
0 |
0 |
| VODI |
0 |
538 |
168 |
491 |
481 |
261 |
0 |
0 |
| ODI |
0 |
150 |
93 |
479 |
1107 |
911 |
54 |
0 |
| CDI |
0 |
6 |
6 |
88 |
1292 |
6561 |
643 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
1 |
119 |
25 |
0 |
|
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