Ocean microplastics have become a major source of concern, especially since they are so hard to track down, but researchers found an ingenious solution using satellites.
. “That is one of the reasons that we really want a remote sensing technique, to have a general understanding.”
Originally designed to track wind over the oceans to help scientists better understand how hurricanes form and predict their development, CYGNSS data provided a key insight for the researchers in 2021, who saw that data from the system showed an unexpected smoothness in the waves of an area of the Pacific Ocean they were not expecting.
“The original idea for this detection technique really arose from a related technique that’s used with satellites to track oil spills,” UM Climate and Space Professorlast year. “They do that by looking at how the presence of the oil suppresses the roughness of the ocean, so we just expanded on that idea.”
"The difference between those is caused by something suppressing the roughening of the ocean. We hypothesized that was that presence of microplastics, because that’s a similar type of physical mechanism as happens with oil spills.
France Dernières Nouvelles, France Actualités
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