Difference between revisions of "Downsamling of AIS data"

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