FROM THE AIR

World of Knowledge (Australia) - - World Events -

At a speed of 70 me­tres per sec­ond the plane flies at a con­stant al­ti­tude over the jun­gle and di­rects hun­dreds of thou­sands of in­frared laser pulses to­wards the ground. By iden­ti­fy­ing the laser points that reach and re­flect off the ground, the tree canopy can be dig­i­tally stripped away, leav­ing a bare-earth to­po­graphic model. The prob­lem: LIDAR tech­nol­ogy doesn’t come cheap – scan­ning the three val­leys in La Mosquitia cost Elkins a cool $250,000.

EN­LARGED VIEW EV­I­DENCE OF REC­TAN­GU­LAR, MAN­MADE STRUC­TURES

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