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@
underdarkGIS
: Vessel tracking with open tools: #QGIS + #PostGIS generating ship tracks from…
anitagraser.com/2017/10/28/movement-data-in-gis-10-open-tools-for-ais-tracks-from-marinecadastre-gov/
https://t.co/q58X0…
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2017 Oct 28