<
https://theconversation.com/landsat-turns-50-how-satellites-revolutionized-the-way-we-see-and-protect-the-natural-world-186986>
"Fifty years ago, U.S. scientists launched a satellite that dramatically
changed how we see the world.
It captured images of Earth’s surface in minute detail, showing how wildfires
burned landscapes, how farms erased forests, and many other ways humans were
changing the face of the planet.
The first satellite in the Landsat series launched on July 23, 1972. Eight
others followed, providing the same views so changes could be tracked over
time, but with increasingly powerful instruments. Landsat 8 and Landsat 9 are
orbiting the planet today, and NASA and the U.S. Geological Survey are planning
a new Landsat mission.
The images and data from these satellites are used to track deforestation and
changing landscapes around the world, locate urban heat islands, and understand
the impact of new river dams, among many other projects. Often, the results
help communities respond to risks that may not be obvious from the ground.
Here are three examples of Landsat in action, from
The Conversation’s
archive."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
