'Google Earth' Now Shows Decades of Climate Change in Seconds
Google Earth has partnered with NASA, the U.S. Geological Survey, the EU’s Copernicus Climate Change Service, and Carnegie Mellon University’s CREATE Lab to bring users time-lapse images of the planet’s surface—24 million satellite photos taken over 37 years.
Together they offer photographic evidence of a planet changing faster than at any time in millennia. Shorelines creep in. Cities blossom. Trees fall. Water reservoirs shrink. Glaciers melt and fracture.
Timelapse, the name of the new Google Earth feature, is the largest video on the planet, according to a statement from the company, requiring 2 million hours to process in cloud computers, and the equivalent of 530,000 high-resolution videos. The tool stitches together nearly 50 years of imagery from the U.S.'s Landsat program, which is run by NASA and the USGS.
When combined with images from complementary European Sentinel-2 satellites, Landsat provides the equivalent of complete coverage of the Earth's surface every two days. Google Earth is expected to update Timelapse about once a year.
https://www.bloomberg.com/news/articles/2021-04-15/google-earth-now-shows-decades-of-climate-change-in-seconds?srnd=premium
https://www.google.com/earth/