Rau (second from the top left) and the cohort he worked alongside on the NSF UNOLS cruise.

Rau (second from the top left) and the cohort he worked alongside on the NSF UNOLS cruise.

A group of scientists aboard a ship, holding an NSF flag.

Matthew Rau, assistant professor of mechanical engineering at Penn State, second from top left, with the cohort he worked alongside on the NSF University-National Oceanographic Laboratory System (UNOLS) cruise.

IMAGE: Provided