= What is the difference between lidar data and a digital elevation model by United States Geological Survey
{tag=Work by United States Geological Survey}
Official explanation: https://www.usgs.gov/faqs/what-difference-between-lidar-data-and-a-digital-elevation-model-dem
Cited passages: aircraft laser returns, point-cloud representation and filtering vegetation and structures to construct a bare-earth <digital elevation model>. No publication date is inferred from the crawl date.
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