Validation of sea ice concentration - Asian sector
Bulletin date: 2023-08-17
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-08-11:
| 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 |
5173 |
7418 |
461 |
399 |
5 |
0 |
0 |
0 |
| OW |
0 |
492 |
294 |
708 |
89 |
1 |
0 |
0 |
| VODI |
0 |
24 |
198 |
2246 |
709 |
71 |
0 |
0 |
| ODI |
0 |
0 |
0 |
628 |
4105 |
2415 |
377 |
0 |
| CDI |
0 |
0 |
0 |
0 |
971 |
4823 |
423 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
42 |
10 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-13:
| 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 |
4001 |
9301 |
328 |
215 |
3 |
0 |
0 |
0 |
| OW |
0 |
794 |
247 |
728 |
99 |
11 |
0 |
0 |
| VODI |
0 |
293 |
128 |
2062 |
579 |
126 |
1 |
0 |
| ODI |
0 |
0 |
0 |
701 |
4293 |
2225 |
160 |
0 |
| CDI |
0 |
0 |
0 |
0 |
1476 |
4089 |
205 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
13 |
4 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-15:
| 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 |
6450 |
8194 |
401 |
188 |
0 |
0 |
0 |
0 |
| OW |
0 |
86 |
210 |
881 |
15 |
0 |
0 |
0 |
| VODI |
0 |
1 |
21 |
2571 |
458 |
7 |
0 |
0 |
| ODI |
0 |
0 |
0 |
204 |
5406 |
269 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
852 |
5406 |
330 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
39 |
93 |
0 |
|
...date precedes bulletin
|
Date: 2023-08-17:
| 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 |
6733 |
8117 |
352 |
219 |
1 |
0 |
0 |
0 |
| OW |
0 |
213 |
325 |
822 |
36 |
0 |
0 |
0 |
| VODI |
0 |
13 |
96 |
2302 |
465 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
238 |
4761 |
799 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
498 |
5648 |
398 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
20 |
26 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6733 |
8176 |
478 |
376 |
2 |
0 |
0 |
0 |
| OW |
0 |
154 |
212 |
797 |
38 |
0 |
0 |
0 |
| VODI |
0 |
13 |
83 |
2180 |
511 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
228 |
4706 |
784 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
504 |
5662 |
401 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
21 |
23 |
0 |
|
Date: 2023-08-19:
| 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 |
7301 |
7802 |
332 |
199 |
0 |
0 |
0 |
0 |
| OW |
0 |
452 |
316 |
565 |
14 |
0 |
0 |
0 |
| VODI |
0 |
113 |
193 |
2182 |
421 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
314 |
4196 |
1316 |
18 |
0 |
| CDI |
0 |
0 |
0 |
1 |
447 |
5198 |
650 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3 |
47 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7301 |
7957 |
386 |
286 |
3 |
0 |
0 |
0 |
| OW |
0 |
323 |
283 |
715 |
23 |
0 |
0 |
0 |
| VODI |
0 |
87 |
172 |
1920 |
528 |
2 |
0 |
0 |
| ODI |
0 |
0 |
0 |
339 |
4050 |
1313 |
69 |
0 |
| CDI |
0 |
0 |
0 |
1 |
474 |
5201 |
609 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
3 |
37 |
0 |
|
Date: 2023-08-21:
| 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 |
7555 |
8358 |
433 |
157 |
0 |
0 |
0 |
0 |
| OW |
0 |
67 |
363 |
827 |
9 |
0 |
0 |
0 |
| VODI |
0 |
1 |
5 |
1982 |
304 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
146 |
3667 |
83 |
0 |
0 |
| CDI |
0 |
0 |
0 |
0 |
410 |
6154 |
233 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
81 |
1247 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
7555 |
7788 |
298 |
215 |
1 |
0 |
0 |
0 |
| OW |
0 |
513 |
308 |
843 |
23 |
0 |
0 |
0 |
| VODI |
0 |
125 |
195 |
1666 |
710 |
5 |
0 |
0 |
| ODI |
0 |
0 |
0 |
384 |
3342 |
1899 |
312 |
0 |
| CDI |
0 |
0 |
0 |
4 |
314 |
4414 |
1106 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
0 |
62 |
0 |
|
Date: 2023-08-23:
| 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 |
8070 |
8143 |
428 |
208 |
0 |
0 |
0 |
0 |
| OW |
0 |
120 |
273 |
872 |
10 |
0 |
0 |
0 |
| VODI |
0 |
4 |
18 |
1479 |
569 |
0 |
0 |
0 |
| ODI |
0 |
0 |
0 |
122 |
3286 |
162 |
0 |
0 |
| CDI |
0 |
0 |
0 |
1 |
560 |
5762 |
987 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
422 |
586 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
8070 |
7337 |
262 |
239 |
0 |
0 |
0 |
0 |
| OW |
0 |
710 |
307 |
762 |
21 |
0 |
0 |
0 |
| VODI |
0 |
219 |
150 |
1372 |
993 |
4 |
0 |
0 |
| ODI |
0 |
1 |
0 |
298 |
3072 |
2098 |
529 |
0 |
| CDI |
0 |
0 |
0 |
11 |
339 |
4240 |
1033 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
4 |
11 |
0 |
|
Date: 2023-08-25:
| 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 |
6795 |
9442 |
496 |
280 |
3 |
0 |
0 |
0 |
| OW |
0 |
165 |
320 |
819 |
18 |
0 |
0 |
0 |
| VODI |
0 |
11 |
43 |
1233 |
763 |
0 |
0 |
0 |
| ODI |
0 |
0 |
2 |
212 |
3024 |
175 |
0 |
0 |
| CDI |
0 |
0 |
0 |
5 |
1002 |
6155 |
552 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
445 |
122 |
0 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
6795 |
8680 |
427 |
349 |
9 |
0 |
0 |
0 |
| OW |
0 |
762 |
289 |
619 |
47 |
0 |
0 |
0 |
| VODI |
0 |
176 |
140 |
1235 |
1316 |
27 |
0 |
0 |
| ODI |
0 |
0 |
5 |
344 |
2896 |
2243 |
425 |
0 |
| CDI |
0 |
0 |
0 |
2 |
542 |
4500 |
249 |
0 |
| VCDI |
0 |
0 |
0 |
0 |
0 |
5 |
0 |
0 |
|
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