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Stunning 30-year time lapse shows earth's changing surface
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Author:  Sky [ Sun May 12, 2013 7:25 am ]
Post subject:  Stunning 30-year time lapse shows earth's changing surface

Stunning 30-year time lapse shows earth's changing surface


Image
A time lapse of the Columbia glacier retreat, via Google/TIME

In 1984, the U.S. Geological Survey and NASA launched a program called Landsat, capturing and archiving hi-resolution satellite images of the earth's surface. Google and Time magazine recently teamed up to create time-lapse videos from the images, releasing the results of the project on Thursday.

"We believe this is the most comprehensive picture of our changing planet ever made available to the public," Rebecca Moore, engineering manager for Google's Earth Engine & Earth Outreach program, wrote in a blog post announcing the Time lapse launch.

Zooming in, users can see startling video footage of melting glaciers in Alaska, deforestation of the Brazilian Amazon, coastal expansion in Dubai and urban sprawl in Las Vegas, created using millions of historical satellite images:

We started working with the USGS in 2009 to make this historic archive of earth imagery available online. Using Google Earth Engine technology, we sifted through 2,068,467 images—a total of 909 terabytes of data—to find the highest-quality pixels (e.g., those without clouds), for every year since 1984 and for every spot on Earth. We then compiled these into enormous planetary images, 1.78 terapixels each, one for each year.

As the final step, we worked with the CREATE Lab at Carnegie Mellon University, recipients of a Google Focused Research Award, to convert these annual Earth images into a seamless, browsable HTML5 animation.


"Consider: a standard TV image uses about one-third of a million pixels per frame, while a high-resolution image uses 2 million," Time's Jeffrey Kluger noted. "The Landsat images, by contrast, weigh in at 1.8 trillion pixels per frame, the equivalent of 900,000 high-def TVs assembled into a single mosaic."

http://ca.news.yahoo.com/stunning-30-ye ... 11528.html


:sherlock

Author:  Bluebonnet [ Sun May 12, 2013 8:04 am ]
Post subject:  Re: Stunning 30-year time lapse shows earth's changing surfa

:awe Sky, that is amazing!

Whoa!

Now deny climate change, you idiots! :flame

Author:  L2L [ Mon May 13, 2013 8:29 pm ]
Post subject:  Re: Stunning 30-year time lapse shows earth's changing surfa

Bluebonnet wrote:
:awe Sky, that is amazing!

Whoa!

Now deny climate change, you idiots! :flame



The US and their Military Industrial Complex is to blame, if you think losing the ice caps is scary have a look at the Great Lake water levels :awe

The US has already poisened the eastern world with their wars and their depleted urianium bombs now they want to poison the rest of us with MONSANTO.

Corporate USA is our enemy :headbang

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