Difference between revisions of "Downsamling of AIS data"

From IWRAP
Jump to navigation Jump to search
(Created page with " Care should be taken when downsampling AIS data to be used in IWRAP. The interval between AIS data fixes should not be more than 6 minutes. The downsampling interval sho...")
 
Line 3: Line 3:
Care should be taken when downsampling AIS data to be used in IWRAP.
Care should be taken when downsampling AIS data to be used in IWRAP.


The interval between AIS data fixes should not be more than 6 minutes.  
The interval between AIS data fixes should not be more than 6 minutes for moving vessels.  


  The downsampling interval should not be less that the time it takes for a vessel to pass through the smallest route leg in your model
  Ideally the downsampling interval should not be less that the time it takes for a vessel to pass through the smallest route leg in your model
 
If you need to downsample your dataset, a maximum of 1 minute intervals is preferable.
 
It is not recommended to downsample AIS data to intervals exceeding 6 minutes.
 
 
''Omar Frits Eriksson, IALA Risk Management Seminar, Istanbul 2014''

Revision as of 14:15, 8 September 2014


Care should be taken when downsampling AIS data to be used in IWRAP.

The interval between AIS data fixes should not be more than 6 minutes for moving vessels.

Ideally the downsampling interval should not be less that the time it takes for a vessel to pass through the smallest route leg in your model

If you need to downsample your dataset, a maximum of 1 minute intervals is preferable.

It is not recommended to downsample AIS data to intervals exceeding 6 minutes.


Omar Frits Eriksson, IALA Risk Management Seminar, Istanbul 2014