Plastic Pollution

Supercomputer Simulations Help Create 3-D Models of Fresh Water Plastic Pollution – UC San Diego Health

According to the National Oceanic and Atmospheric Administration (NOAA), 75 percent of predicted worldwide plastic waste involves nine specific polymer types. These kinds of plastic were the focus of this model of Lake Erie completed using SDSC’s Comet supercomputer. The plastic particles are shown in blue; the darker blue indicates a higher concentration of plastic. Credit: M. Hoffman (Rochester Institute of Technology), S. Mason (Pennsylvania State University at Behrend)

The transport of nine types of plastics floating in Lake Erie was modeled in two studies that used the Comet supercomputer, at the San Diego Supercomputer Center (SDSC) at the University of California San Diego, to compare a two-dimensional model with a new Great Lakes microplastic dataset and then develop the first ever three-dimensional mass estimate for plastic in Lake Erie.

The studies were recently published in Marine Pollution Bulletin and the Journal of Great Lakes Research by researchers from Pennsylvania State University at Behrend and the Rochester Institute of Technology (RIT).

Comet allowed us to run three years of hydrodynamic simulations of Lake Erie that drive the transport of plastic particles within Lake Erie,” said Matthew Hoffman, an RIT associate professor of mathematical sciences. “We don’t have the computing infrastructure at my university to run these simulations efficiently, so having access to Comet enabled us to run state-of-the-art code that is not possible on our local desktops and laptops.”

Hoffman worked with Penn State-Behrend Chemistry Professor Sherri Mason, who led the collection of