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Using rainbow-colored bathymetric charts, researchers Bob Collier, Dan Fornari, Marvin Lilley and Susan Humphris plan explorations to different research areas. The bathymetric charts measure water depth -- the distance from the sea surface to the bottom of the ocean. Reds, oranges and yellows indicate shallow areas, while greens, blues and purples mark deeper spots.


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Using rainbow-colored bathymetric charts, researchers Bob Collier, Dan Fornari, Marvin Lilley and Susan Humphris plan explorations to different research areas. The bathymetric charts measure water depth -- the distance from the sea surface to the bottom of the ocean. Reds, oranges and yellows indicate shallow areas, while greens, blues and purples mark deeper spots.

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