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A USGS scientist collects water from a CTD aboard the Aleutian Arc expedition

Detailed Description

A USGS scientist collects water from a CTD aboard the Aleutian Arc expedition. Each CTD is equipped with an array of sensors and a rosette of Niskin bottles, which collect discrete water samples at targeted depths. 

Sources/Usage

Public Domain.

Photo courtesy of The Aleutian Arc: Integrated Exploration of Biodiversity at Priority Benthic Habitats (USGS/BOEM/NOAA/ONR).  Photographer: Art Howard

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