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View Full Version : Nasa satellite map reveals 99% of Earth's land surface for first time



jetdawgg
06-30-09, 05:08 PM
An astonishing new map has revealed the elevation of nearly every place on Earth.

The Global Digital Elevation Model was created using nearly 1.3million images collected by a Japanese camera on board Nasa's Terra spacecraft. It is made up of a giant grid of 23,000 tiles, with each height point spaced 98ft apart.

It shows a detailed representation of the planet's land mass. In this colourised version, low elevations are purple, medium elevations are greens and yellows, and high elevations are orange, red and white.

http://i.dailymail.co.uk/i/pix/2009/06/30/article-1196475-058A5CBD000005DC-577_964x497.jpg

http://i.dailymail.co.uk/i/pix/2009/06/30/article-1196475-058A5D7E000005DC-291_306x365.jpg

http://i.dailymail.co.uk/i/pix/2009/06/30/article-1196475-058A5519000005DC-491_964x450.jpg

http://www.dailymail.co.uk/sciencetech/article-1196475/Nasas-Aster-satellite-map-reveals-99-Earths-land-surface-time.html