For 40 years Landsat satellites have been circling the Earth, taking pictures from roughly 440 miles above us. Each loop lasts about 99 minutes and it takes about 16 days to capture the entire planet. Which means that Landsats have been recording, in 16-day intervals, the ebb and flow of our relationship with the planet since the early 1970s.
http://blogs.smithsonianmag.com/ideas/2012/08/scenes-from-a-changing-planet/
Your Comments
Rein in 3D Point Clouds with the LAS Format
The advent of LiDAR sensors has been valuable for the geospatial industry, but there have been some challenges as the community attempts to fully leverage the technology. As you may already know,...Download this paper
