Validation of sea ice concentration - Asian sector
Bulletin date: 2023-10-12
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-10-06:
| 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 |
10478 |
5861 |
65 |
88 |
12 |
0 |
0 |
0 |
| OW |
0 |
779 |
140 |
221 |
62 |
13 |
0 |
0 |
| VODI |
0 |
152 |
144 |
343 |
115 |
40 |
0 |
0 |
| ODI |
0 |
12 |
23 |
247 |
263 |
101 |
12 |
0 |
| CDI |
0 |
0 |
5 |
113 |
440 |
626 |
489 |
0 |
| VCDI |
0 |
0 |
0 |
37 |
157 |
1782 |
5016 |
4246 |
|
...date precedes bulletin
|
Date: 2023-10-08:
| 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 |
8680 |
6999 |
118 |
102 |
3 |
0 |
0 |
0 |
| OW |
29 |
823 |
165 |
449 |
90 |
13 |
0 |
0 |
| VODI |
0 |
108 |
124 |
452 |
180 |
47 |
0 |
0 |
| ODI |
0 |
0 |
8 |
262 |
218 |
194 |
10 |
0 |
| CDI |
0 |
0 |
0 |
91 |
342 |
518 |
245 |
0 |
| VCDI |
0 |
0 |
0 |
13 |
180 |
1323 |
5646 |
4650 |
|
...date precedes bulletin
|
Date: 2023-10-10:
| 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 |
7277 |
8053 |
375 |
474 |
3 |
0 |
0 |
0 |
| OW |
1 |
204 |
99 |
555 |
71 |
0 |
0 |
0 |
| VODI |
0 |
3 |
11 |
360 |
349 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
59 |
516 |
69 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
207 |
827 |
31 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
62 |
654 |
5609 |
6197 |
|
...date precedes bulletin
|
Date: 2023-10-12:
| 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 |
7584 |
6767 |
267 |
383 |
6 |
0 |
0 |
0 |
| OW |
16 |
704 |
130 |
569 |
165 |
0 |
0 |
0 |
| VODI |
0 |
62 |
30 |
337 |
463 |
5 |
0 |
0 |
| ODI |
0 |
0 |
0 |
51 |
456 |
83 |
0 |
0 |
| CDI |
0 |
0 |
0 |
7 |
214 |
607 |
0 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
90 |
1387 |
5473 |
6222 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7594 |
7073 |
317 |
560 |
17 |
0 |
0 |
0 |
| OW |
6 |
417 |
79 |
405 |
128 |
0 |
0 |
0 |
| VODI |
0 |
43 |
31 |
299 |
468 |
7 |
0 |
0 |
| ODI |
0 |
0 |
0 |
66 |
432 |
100 |
0 |
0 |
| CDI |
0 |
0 |
0 |
17 |
220 |
478 |
8 |
0 |
| VCDI |
0 |
0 |
0 |
4 |
129 |
1497 |
5465 |
6222 |
|
Date: 2023-10-14:
| 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 |
6161 |
6999 |
201 |
204 |
9 |
0 |
0 |
0 |
| OW |
214 |
949 |
379 |
685 |
178 |
0 |
0 |
0 |
| VODI |
3 |
82 |
65 |
461 |
455 |
46 |
0 |
0 |
| ODI |
0 |
0 |
0 |
86 |
417 |
160 |
0 |
0 |
| CDI |
0 |
0 |
0 |
20 |
237 |
421 |
12 |
0 |
| VCDI |
0 |
0 |
0 |
6 |
112 |
1509 |
5176 |
6835 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6252 |
6971 |
259 |
321 |
67 |
0 |
0 |
0 |
| OW |
126 |
949 |
285 |
443 |
138 |
0 |
0 |
0 |
| VODI |
0 |
110 |
101 |
562 |
436 |
39 |
0 |
0 |
| ODI |
0 |
0 |
0 |
102 |
380 |
182 |
0 |
0 |
| CDI |
0 |
0 |
0 |
27 |
243 |
346 |
22 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
144 |
1569 |
5166 |
6835 |
|
Date: 2023-10-16:
| 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 |
4038 |
7824 |
436 |
272 |
0 |
0 |
0 |
0 |
| OW |
52 |
744 |
259 |
669 |
57 |
0 |
0 |
0 |
| VODI |
3 |
7 |
30 |
717 |
451 |
1 |
0 |
0 |
| ODI |
0 |
0 |
0 |
56 |
1136 |
90 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
317 |
990 |
9 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
53 |
1247 |
4886 |
7737 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
4072 |
7437 |
448 |
449 |
61 |
8 |
0 |
0 |
| OW |
21 |
1013 |
207 |
606 |
158 |
32 |
0 |
0 |
| VODI |
0 |
119 |
68 |
557 |
929 |
102 |
0 |
0 |
| ODI |
0 |
6 |
2 |
79 |
457 |
326 |
5 |
0 |
| CDI |
0 |
0 |
0 |
22 |
249 |
452 |
37 |
0 |
| VCDI |
0 |
0 |
0 |
2 |
160 |
1408 |
4853 |
7737 |
|
Date: 2023-10-18:
| 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 |
3392 |
4889 |
308 |
714 |
105 |
0 |
0 |
0 |
| OW |
48 |
1615 |
337 |
1105 |
373 |
38 |
0 |
0 |
| VODI |
3 |
185 |
100 |
464 |
827 |
132 |
0 |
0 |
| ODI |
0 |
0 |
0 |
22 |
588 |
370 |
0 |
0 |
| CDI |
0 |
0 |
0 |
3 |
183 |
783 |
178 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
63 |
1102 |
4745 |
9410 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3410 |
5439 |
423 |
1212 |
352 |
33 |
0 |
0 |
| OW |
32 |
892 |
183 |
608 |
496 |
127 |
9 |
0 |
| VODI |
1 |
350 |
125 |
385 |
734 |
398 |
26 |
0 |
| ODI |
0 |
8 |
14 |
80 |
240 |
668 |
81 |
0 |
| CDI |
0 |
0 |
0 |
23 |
195 |
404 |
436 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
122 |
795 |
4371 |
9410 |
|
Date: 2023-10-20:
| 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 |
3265 |
3068 |
164 |
285 |
279 |
0 |
0 |
0 |
| OW |
65 |
916 |
277 |
1104 |
1089 |
163 |
0 |
0 |
| VODI |
2 |
400 |
203 |
873 |
1289 |
521 |
0 |
0 |
| ODI |
0 |
5 |
3 |
87 |
510 |
576 |
0 |
0 |
| CDI |
0 |
0 |
0 |
12 |
246 |
598 |
19 |
0 |
| VCDI |
0 |
0 |
0 |
7 |
170 |
1733 |
6574 |
7579 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
3324 |
3217 |
270 |
782 |
851 |
141 |
0 |
0 |
| OW |
7 |
714 |
151 |
709 |
1379 |
420 |
0 |
0 |
| VODI |
1 |
443 |
188 |
638 |
533 |
786 |
1 |
0 |
| ODI |
0 |
15 |
37 |
143 |
327 |
509 |
54 |
0 |
| CDI |
0 |
0 |
1 |
93 |
293 |
516 |
343 |
0 |
| VCDI |
0 |
0 |
0 |
3 |
200 |
1219 |
6195 |
7579 |
|
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