Laser barrage helps map California beaches

A new generation of high-tech mapmakers is blasting California's beaches and cliffs with a barrage of laser beams in a bid to create the most detailed map of the coastline ever assembled. By firing airplane-mounted lasers thousands of times a second at the coast, scientists are piecing together a 3D map of such high resolution that it even details individual boulders and telephone poles. The resulting map can be used to study erosion and plan wetland restoration and floodplain management.

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San Jose Mercury News (Calif.) (free registration)

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