Features including Alaska’s Columbia Glacier and Dubai’s sprawling cityscape
Earlier, Google released its timelapse visualization of Earth in 2013, providing the most thorough picture of our changing planet. Now, this time, it has come with the fresh and 3-D data showing how the cityscapes and Glaciers have drastically evolved in the last 32 years.
This latest update allow users to explore a range of compelling locations even further back to 1984.
Google’s interactive time-lapse application enables people to explore variations on the Earth’s surface like never before, from viewing the vegetation of Las Vegas’ strip to the habitat of Alaska’s Columbia Glacier.
Doesn’t it seem waaooow?
Chris Herwig, Programme Manager at Google Earth Engine said:
“Leveraging the same techniques we used to improve Google Maps and Google Earth back in June, the new time-lapse reveals a sharper view of our planet, with truer colors and fewer distracting artifacts.”
London has also changed dramatically since 1984
Check the last 2 pictures, and you would notice how much the area has changed since 1984, when there was a lot more green spaces and less buildings around the river Thames.
Now, you can also see how much more developed cities like Beijing in China has changed in last three decades.
Another city that has changed drastically since last 32 years is New York. If you compare 1984 with 2016, it would clearly show how much advancement there has been including the area around Central Park and Brooklyn.
How all this get possible?
Mr. Chris Herwig said, “Using Google Earth Engine, we combined more than 5,000,000 satellite images, roughly four petabytes of data, to create 33 pictures of the entire planet, one for each year.”
Let’s have some tech talk!
To access more images from the past, Google took help from Landsat Global Archive Consolidation Program, and for the recent pictures, two satellites, namely Landsat 8 and Sentinel-2 served them out.
Later, they encoded the 33 new 3.95 Terapixel global images into just over 25,000,000 overlapping multi-resolution video tiles.
All this happened with the use of Carnegie Mellon CREATE Lab’s Time Machine Library, a technology for generating and observing zoomable and pannable time-lapses over space and time.
Wish to explore more by yourself? Here you go!
Just go to the Google Earth Engine, and type the name of a place in the search bar, and then move the timeline at the bottom to choose which year you would like to see.