underdarkGIS’s Twitter Archive—№ 12,057

@DiogoCaribe_ @jonititan @dask_dev @ApacheSpark @postgis @PostgreSQL Those are tracking systems for vessels and planes, respectively. You can find a quick intro to AIS and links to data at anitagraser.com/2017/10/28/movement-data-in-gis-10-open-tools-for-ais-tracks-from-marinecadastre-gov/