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Contact: Ed Hayward
Boston College

Laser Mapping Aids Geologists

Caption: The dynamics of rivers and streams can be more clearly identified using new laser-guided mapping technology, or lidar. This figure shows a segment of Maine’s Sheepscot River in a traditional digital topographic contour map (a); a lidar map (b); and the identification of Atlantic salmon spawning habitat (c). Airborne lidar mapping provides far greater resolution and allows researchers to connect the slope of the river with spawning habitat.

Credit: American Geophysical Union

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Related news release: Next generation digital maps are laser sharp

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