Difference between revisions of "Downsamling of AIS data"
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(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...") |
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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. | ||
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. | |||
== High resolution AIS data == | |||
[[File:Downsampled AIS Data-1.jpg]] | |||
== Downsampled AIS data == | |||
[[File:Downsampled AIS Data-2.jpg]] | |||
''Omar Frits Eriksson, IALA Risk Management Seminar, Istanbul 2014'' | |||
Latest revision as of 02:51, 6 October 2015
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.
High resolution AIS data
Downsampled AIS data
Omar Frits Eriksson, IALA Risk Management Seminar, Istanbul 2014